Acute Coronary Syndromes

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

In the early weeks of the COVID-19 pandemic in the United States, rates of sustained return of spontaneous circulation after out-of-hospital cardiac arrest were lower throughout the country, compared with a year earlier, in one study.

A second study of that period showed that patients with COVID-19 had rates that were better than previously reported of surviving in-hospital cardiac arrest.

Paul S. Chan, MD, presented the out-of-hospital cardiac arrest research, and Oscar J. Mitchell, MD, presented the in-hospital cardiac arrest findings in a late-breaking resuscitation science session at the American Heart Association scientific sessions. The former study was also simultaneously published online Nov. 14 in JAMA Cardiology.

Importantly, “the survival rates were not zero in either setting,” said Dr. Chan, commenting on the implications of both studies taken together.

“The survival rates – either return of circulation or survival to discharge – were not futile,” Dr. Chan, from Saint Luke’s Mid America Heart Institute, Kansas City, Missouri, said in an interview.

“And I think that’s an overall important message – that we can’t write off patients who have a cardiac arrest at this point,” he stressed. “They deserve a response. Although the outcomes might not be as good as we had seen in years prior, we are seeing patients making it out of the hospital and surviving.”

Dr. Mitchell, from the University of Pennsylvania in Philadelphia, echoed this message in an interview.

“I think that the key finding here is that survival is possible after patients with COVID-19 suffer an in-hospital cardiac arrest,” Dr. Mitchell said. “We hope that the information from our study will be of use to frontline providers who are treating patients with COVID-19.”

“In coming weeks, there will likely be increased hospital strain and enormous challenges to providing COVID-19 care,” added Benjamin S. Abella, MD, the senior author of the in-hospital study. Dr. Abella is also from the University of Pennsylvania and was cochair of the Resuscitation Science symposium during the AHA meeting.

“It is crucial that hospital leaders prepare now for how they will manage COVID-19 resuscitation efforts,” Dr. Abella said. “Emergency medicine and critical care leaders must be mindful that many COVID-19 patients with arrest could survive to return to their families.”

“It is important to note both studies demonstrated variations in outcome and that those differences were associated with the differential COVID prevalence and mortality,” session comoderator Cindy H. Hsu, MD, PhD, University of Michigan, said in an interview.

“Future studies,” she said, “should address knowledge gaps including associated comorbidities and affected resuscitation process variables during the COVID-19 pandemic.”
 

Out-of-hospital cardiac arrest, March 2019 vs. March 2020

Compared with 2019, in 2020, the reported rates of return of spontaneous circulation after out-of-hospital cardiac arrest fell from 25% to 10.6% in New York and from 13.5% to 5.0% in northern Italy – two areas that were severely affected, Dr. Chan noted.

In this study, the researchers aimed to examine whether out-of-hospital cardiac arrest outcomes would be similar throughout the United States, including areas that were less severely affected, in the first weeks of the pandemic.

They linked data from the Cardiac Arrest Registry to Enhance Survival (CARES), which covers an area with about 152 million U.S. residents, with COVID-19 disease mortality data.

There were 9,863 out-of-hospital arrests from March 16 to April 30, 2020, compared with 9,440 cases during this time in 2019.

The patients in both years had a similar age (mean, 62 years) and sex (62% male), but there were more Black patients in 2020 (28% vs. 23%).

Overall, in communities with low to high rates of death from COVID-19, the rate of return of spontaneous circulation was 18% lower in that early pandemic period than in the same time in the previous year (23% vs. 29.8%; adjusted rate ratio, 0.82).

The rates of return of spontaneous circulation were also lower in communities with a low rate of COVID-19 mortality, but to a lesser extent (11%-15% lower in 2020 vs. 2019).

In the subset of emergency medical agencies with complete data on hospital survival, overall rates of survival to discharge were 17% lower during the studied pandemic period versus the same time a year earlier (6.6% vs. 9.8%; adjusted RR, 0.83).

This drop in survival was greater in communities with moderate to high COVID-19 mortality.

These outcomes were not explained by differences in emergency medical services arrival or treatment times, rates of bystander CPR, or initial out-of-hospital cardiac arrest rhythm.

Dr. Chan was a coauthor of an interim guidance issued April 9, 2020, by the AHA and several other medical societies for ways to protect frontline workers from contracting COVID-19 while they were performing CPR.

Communities that were not heavily affected by COVID-19 could have also been following the recommendations, which might have affected outcomes, he speculated.

For example, “when we pause chest compressions it can potentially worsen survival even if it’s for a short period of time. That might explain the lower rates of return of circulation.”

“That guidance was really meant for heavily affected communities,” Dr. Chan added. “Of course, as we speak, the pandemic is pretty much everywhere in the United States. It’s not just in the northeast; it’s not just in Arizona, Florida, California, Texas like it was in the summer. You are seeing surges in 46 of the 50 states.

“If your community is heavily affected by COVID-19 in terms of deaths at this time, paramedics will need to take caution to also help protect themselves, and the guidance may apply at that point,” he said.

In-hospital cardiac arrest, March Through May 2020

The early studies of in-hospital cardiac arrest in patients with COVID-19 showed “concerningly low rates” of return of spontaneous circulation and survival, said Dr. Mitchell.

“The first was a study from Wuhan, which demonstrated a 2.9% 30-day survival and the second was a small cohort from NYC with 0% survival to hospital discharge,” he said. “This raised concerns that offering CPR to patients who had a cardiac arrest from COVID-19 might only hold a low probability of success.”

To investigate this, the researchers formed a COVID study group comprising two hospitals in New York and nine hospitals in the Northeast and West Coast.

They identified 260 hospitalized adult patients with COVID-19 who had in-hospital cardiac arrest between March 1 and May 31, 2020. The patients had a median age of 69 years, and 72% were male. Most had preexisting comorbidities. Most of the cardiac arrests were in the ICU (64%), and almost all were witnessed (91%).

Return of spontaneous circulation occurred in 22% of the patients, and 12% had survived 30 days later. Of the 260 cardiac arrests, most (204) occurred in the New York hospitals.

There was a huge variation in outcomes. The rate of sustained return of spontaneous circulation was much lower in the two hospitals in New York compared with elsewhere (11% vs. 64%), as was 30-day survival (6% vs. 36%).

“Variation in outcomes from [in-hospital cardiac arrest] has been well described prior to the COVID-19 pandemic,” said Dr. Mitchell, “and is felt to be due to a range of factors, including variation in detection and prevention of cardiac arrest, management of patients during the cardiac arrest, and differences in postarrest care – including targeted temperature management and neuroprognostication.”

“We hypothesize that the strains of the COVID-19 pandemic may have amplified these variations (although we were unable to compare hospital performance before and after the pandemic),” he said.

Nevertheless, “in contrast to [earlier] studies, we have found that survival with a good neurological status is possible after in-hospital cardiac arrest in patients with COVID-19, which is certainly reassuring for those of us on the front line.”

Dr. Chan has received research support from the American Heart Association (which helps fund CARES); the National Heart, Lung, and Blood Institute; and Optum Rx. Dr. Abella has received honoraria from NeuroproteXeon, Becton Dickinson, and Physio-Control, and research grants from Medtronic, PCORI, Physio-Control, Stryker, and TerSera. Dr. Mitchell has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

Individuals in the general population with high levels of silent coronary atherosclerosis can be successfully identified with a simple questionnaire that they can complete themselves at home, a new study suggests.  

The Swedish CardioPulmonary BioImage Study (SCAPIS) found that 40% of middle-aged adults without known heart disease had evidence of coronary atherosclerosis on coronary CT angiography (CCTA), and 13% had extensive atherosclerotic disease.

The authors found that the screening questionnaire could identify individuals who had extensive coronary atherosclerosis with a reasonably high predictive value.

Initial results from the study were presented today at the virtual American Heart Association (AHA) Scientific Sessions 2020.

“Our study is looking to see if we can estimate how many people in the general population have significant coronary atherosclerosis and therefore could benefit from preventative treatment,” lead author, Göran Bergström, MD, explained to Medscape Medical News. 

Bergström, who is professor and lead physician at Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden, said there are no good data on this as yet. “There are studies of atherosclerosis burden in patients who have had a cardiovascular event, but our study was conducted in a random selection of the middle-aged general population who did not have symptoms of heart disease.”

“Our study also suggests that in future we may be able to identify these people with an online questionnaire, and those that reached a certain score could be referred for an imaging test,” he added.
SCAPIS included more than 30,000 men and women, age 50 to 64 years, who had no history of cardiovascular events or cardiac intervention. They were asked questions about sex, age, lifestyle, smoking, body measurements, cholesterol medication, and blood pressure to predict their risk for coronary artery disease.

Researchers then used CCTA images to examine patients’ arteries for the presence of plaque. More than 25,000 individuals from the original sample were successfully imaged.

Results showed that 40% of the middle-aged population had some coronary atherosclerosis and 5% had severe atherosclerosis, defined as the presence of a stenosis blocking 50% or more of blood flow in one of the coronary arteries.   

A second aim of the study was to use data from the questionnaire to develop a prediction model to identify people with widespread atherosclerosis — those with any type of stenosis in four different segments of their coronary arteries, who made up 13% of the population. 

The questionnaire included data on 120 different variables. Of these variables, around 100 could be assessed by the patients themselves and another 20 measurements could be performed in the clinic, such as blood pressure and cholesterol levels.

The researchers then used artificial intelligence to assess which variables were associated with widespread atherosclerosis. This had an area under the curve (AUC, a measure of the predictive value) of 0.8.  

“An AUC of 1.0 would show a perfect prediction, and a value of 0.5 shows no value. A result of 0.8 shows reasonable predictive potential. This is an encouraging result and suggests this strategy could work,” Bergström said. 

“We know silent atherosclerosis is a big problem and causes sudden cardiac events in people who have not shown symptoms,” he said.

The goal is to identify these patients before they have an event and offer them preventive treatments. “At present we try and identify patients at high risk of cardiovascular events by using cholesterol and blood pressure measurements and cardiovascular risk scores such as Framingham. But this is not so effective,” Bergström explained.

“Using imaging such as CCTA, where you can actually see atherosclerotic plaque, could be better for prediction, but we can’t image everyone. So, we wanted to see whether we could narrow down the population who should receive imaging with a detailed questionnaire, and it looks like we can.”

The study found that including clinical measurements such as blood pressure and cholesterol did not add much to the predictive value for identifying people with extensive coronary atherosclerosis, a result that Bergström said was surprising.   

Which population to target?

Discussant of the study, Pamela Douglas, MD, professor of research in cardiovascular diseases at Duke University, Durham, North Carolina, congratulated the SCAPIS investigators on creating “a very rich data set for current and future study.”

“The SCAPIS study has already yielded novel data on the prevalence of coronary artery disease in the general population, and will address many critical questions over the long term,” she said.
But Douglas suggested that individuals with extensive coronary atherosclerosis were not the most appropriate target population to identify.

“The rationale for choosing this cutpoint is unclear as clinical risk/mortality is higher in all nonobstructive coronary artery disease, starting at one-vessel involvement,” she noted. “Therefore, effective preventive strategies likely need to start with detection and treatment of patients with even minimal plaque.”

Responding to Medscape Medical News, Bergström said this was a valid argument. “We plan to reanalyze our results with different populations as the target — that is something that we can do in the future.

But targeting everyone with just one coronary plaque is going to identify a large group — it was 40% of the population in our study. This will be too many people in whom to perform confirmatory CCTA imaging. It would be impractical to try and conduct cardiac imaging on that many people.”

Bergström noted that more data are needed on the danger of various levels of coronary atherosclerosis in this population who have not had any symptoms. 

“We don’t have this information at present, but we are continuing to follow our population and we will have data on cardiac events in a few years’ time. Then we will know which level of atherosclerosis we need to target. It will probably be somewhere in between the extensive levels we used in this first analysis (which occurred in 13% of people) and the 40% of people who showed just one area of plaque.”

This study is the first report from SCAPIS, a collaborative project between six Swedish universities with the following vision statement: to “reduce the risk of cardiovascular and respiratory diseases for generations to come.”

The SCAPIS project is funded by the Swedish Heart and Lung Foundation. Bergström reports no disclosures. 

This article first appeared on Medscape.com.

Individuals in the general population with high levels of silent coronary atherosclerosis can be successfully identified with a simple questionnaire that they can complete themselves at home, a new study suggests.  

The Swedish CardioPulmonary BioImage Study (SCAPIS) found that 40% of middle-aged adults without known heart disease had evidence of coronary atherosclerosis on coronary CT angiography (CCTA), and 13% had extensive atherosclerotic disease.

The authors found that the screening questionnaire could identify individuals who had extensive coronary atherosclerosis with a reasonably high predictive value.

Initial results from the study were presented today at the virtual American Heart Association (AHA) Scientific Sessions 2020.

“Our study is looking to see if we can estimate how many people in the general population have significant coronary atherosclerosis and therefore could benefit from preventative treatment,” lead author, Göran Bergström, MD, explained to Medscape Medical News. 

Bergström, who is professor and lead physician at Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden, said there are no good data on this as yet. “There are studies of atherosclerosis burden in patients who have had a cardiovascular event, but our study was conducted in a random selection of the middle-aged general population who did not have symptoms of heart disease.”

“Our study also suggests that in future we may be able to identify these people with an online questionnaire, and those that reached a certain score could be referred for an imaging test,” he added.
SCAPIS included more than 30,000 men and women, age 50 to 64 years, who had no history of cardiovascular events or cardiac intervention. They were asked questions about sex, age, lifestyle, smoking, body measurements, cholesterol medication, and blood pressure to predict their risk for coronary artery disease.

Researchers then used CCTA images to examine patients’ arteries for the presence of plaque. More than 25,000 individuals from the original sample were successfully imaged.

Results showed that 40% of the middle-aged population had some coronary atherosclerosis and 5% had severe atherosclerosis, defined as the presence of a stenosis blocking 50% or more of blood flow in one of the coronary arteries.   

A second aim of the study was to use data from the questionnaire to develop a prediction model to identify people with widespread atherosclerosis — those with any type of stenosis in four different segments of their coronary arteries, who made up 13% of the population. 

The questionnaire included data on 120 different variables. Of these variables, around 100 could be assessed by the patients themselves and another 20 measurements could be performed in the clinic, such as blood pressure and cholesterol levels.

The researchers then used artificial intelligence to assess which variables were associated with widespread atherosclerosis. This had an area under the curve (AUC, a measure of the predictive value) of 0.8.  

“An AUC of 1.0 would show a perfect prediction, and a value of 0.5 shows no value. A result of 0.8 shows reasonable predictive potential. This is an encouraging result and suggests this strategy could work,” Bergström said. 

“We know silent atherosclerosis is a big problem and causes sudden cardiac events in people who have not shown symptoms,” he said.

The goal is to identify these patients before they have an event and offer them preventive treatments. “At present we try and identify patients at high risk of cardiovascular events by using cholesterol and blood pressure measurements and cardiovascular risk scores such as Framingham. But this is not so effective,” Bergström explained.

“Using imaging such as CCTA, where you can actually see atherosclerotic plaque, could be better for prediction, but we can’t image everyone. So, we wanted to see whether we could narrow down the population who should receive imaging with a detailed questionnaire, and it looks like we can.”

The study found that including clinical measurements such as blood pressure and cholesterol did not add much to the predictive value for identifying people with extensive coronary atherosclerosis, a result that Bergström said was surprising.   

Which population to target?

Discussant of the study, Pamela Douglas, MD, professor of research in cardiovascular diseases at Duke University, Durham, North Carolina, congratulated the SCAPIS investigators on creating “a very rich data set for current and future study.”

“The SCAPIS study has already yielded novel data on the prevalence of coronary artery disease in the general population, and will address many critical questions over the long term,” she said.
But Douglas suggested that individuals with extensive coronary atherosclerosis were not the most appropriate target population to identify.

“The rationale for choosing this cutpoint is unclear as clinical risk/mortality is higher in all nonobstructive coronary artery disease, starting at one-vessel involvement,” she noted. “Therefore, effective preventive strategies likely need to start with detection and treatment of patients with even minimal plaque.”

Responding to Medscape Medical News, Bergström said this was a valid argument. “We plan to reanalyze our results with different populations as the target — that is something that we can do in the future.

But targeting everyone with just one coronary plaque is going to identify a large group — it was 40% of the population in our study. This will be too many people in whom to perform confirmatory CCTA imaging. It would be impractical to try and conduct cardiac imaging on that many people.”

Bergström noted that more data are needed on the danger of various levels of coronary atherosclerosis in this population who have not had any symptoms. 

“We don’t have this information at present, but we are continuing to follow our population and we will have data on cardiac events in a few years’ time. Then we will know which level of atherosclerosis we need to target. It will probably be somewhere in between the extensive levels we used in this first analysis (which occurred in 13% of people) and the 40% of people who showed just one area of plaque.”

This study is the first report from SCAPIS, a collaborative project between six Swedish universities with the following vision statement: to “reduce the risk of cardiovascular and respiratory diseases for generations to come.”

The SCAPIS project is funded by the Swedish Heart and Lung Foundation. Bergström reports no disclosures. 

This article first appeared on Medscape.com.

Individuals in the general population with high levels of silent coronary atherosclerosis can be successfully identified with a simple questionnaire that they can complete themselves at home, a new study suggests.  

The Swedish CardioPulmonary BioImage Study (SCAPIS) found that 40% of middle-aged adults without known heart disease had evidence of coronary atherosclerosis on coronary CT angiography (CCTA), and 13% had extensive atherosclerotic disease.

The authors found that the screening questionnaire could identify individuals who had extensive coronary atherosclerosis with a reasonably high predictive value.

Initial results from the study were presented today at the virtual American Heart Association (AHA) Scientific Sessions 2020.

“Our study is looking to see if we can estimate how many people in the general population have significant coronary atherosclerosis and therefore could benefit from preventative treatment,” lead author, Göran Bergström, MD, explained to Medscape Medical News. 

Bergström, who is professor and lead physician at Sahlgrenska Academy, Gothenburg University, Gothenburg, Sweden, said there are no good data on this as yet. “There are studies of atherosclerosis burden in patients who have had a cardiovascular event, but our study was conducted in a random selection of the middle-aged general population who did not have symptoms of heart disease.”

“Our study also suggests that in future we may be able to identify these people with an online questionnaire, and those that reached a certain score could be referred for an imaging test,” he added.
SCAPIS included more than 30,000 men and women, age 50 to 64 years, who had no history of cardiovascular events or cardiac intervention. They were asked questions about sex, age, lifestyle, smoking, body measurements, cholesterol medication, and blood pressure to predict their risk for coronary artery disease.

Researchers then used CCTA images to examine patients’ arteries for the presence of plaque. More than 25,000 individuals from the original sample were successfully imaged.

Results showed that 40% of the middle-aged population had some coronary atherosclerosis and 5% had severe atherosclerosis, defined as the presence of a stenosis blocking 50% or more of blood flow in one of the coronary arteries.   

A second aim of the study was to use data from the questionnaire to develop a prediction model to identify people with widespread atherosclerosis — those with any type of stenosis in four different segments of their coronary arteries, who made up 13% of the population. 

The questionnaire included data on 120 different variables. Of these variables, around 100 could be assessed by the patients themselves and another 20 measurements could be performed in the clinic, such as blood pressure and cholesterol levels.

The researchers then used artificial intelligence to assess which variables were associated with widespread atherosclerosis. This had an area under the curve (AUC, a measure of the predictive value) of 0.8.  

“An AUC of 1.0 would show a perfect prediction, and a value of 0.5 shows no value. A result of 0.8 shows reasonable predictive potential. This is an encouraging result and suggests this strategy could work,” Bergström said. 

“We know silent atherosclerosis is a big problem and causes sudden cardiac events in people who have not shown symptoms,” he said.

The goal is to identify these patients before they have an event and offer them preventive treatments. “At present we try and identify patients at high risk of cardiovascular events by using cholesterol and blood pressure measurements and cardiovascular risk scores such as Framingham. But this is not so effective,” Bergström explained.

“Using imaging such as CCTA, where you can actually see atherosclerotic plaque, could be better for prediction, but we can’t image everyone. So, we wanted to see whether we could narrow down the population who should receive imaging with a detailed questionnaire, and it looks like we can.”

The study found that including clinical measurements such as blood pressure and cholesterol did not add much to the predictive value for identifying people with extensive coronary atherosclerosis, a result that Bergström said was surprising.   

Which population to target?

Discussant of the study, Pamela Douglas, MD, professor of research in cardiovascular diseases at Duke University, Durham, North Carolina, congratulated the SCAPIS investigators on creating “a very rich data set for current and future study.”

“The SCAPIS study has already yielded novel data on the prevalence of coronary artery disease in the general population, and will address many critical questions over the long term,” she said.
But Douglas suggested that individuals with extensive coronary atherosclerosis were not the most appropriate target population to identify.

“The rationale for choosing this cutpoint is unclear as clinical risk/mortality is higher in all nonobstructive coronary artery disease, starting at one-vessel involvement,” she noted. “Therefore, effective preventive strategies likely need to start with detection and treatment of patients with even minimal plaque.”

Responding to Medscape Medical News, Bergström said this was a valid argument. “We plan to reanalyze our results with different populations as the target — that is something that we can do in the future.

But targeting everyone with just one coronary plaque is going to identify a large group — it was 40% of the population in our study. This will be too many people in whom to perform confirmatory CCTA imaging. It would be impractical to try and conduct cardiac imaging on that many people.”

Bergström noted that more data are needed on the danger of various levels of coronary atherosclerosis in this population who have not had any symptoms. 

“We don’t have this information at present, but we are continuing to follow our population and we will have data on cardiac events in a few years’ time. Then we will know which level of atherosclerosis we need to target. It will probably be somewhere in between the extensive levels we used in this first analysis (which occurred in 13% of people) and the 40% of people who showed just one area of plaque.”

This study is the first report from SCAPIS, a collaborative project between six Swedish universities with the following vision statement: to “reduce the risk of cardiovascular and respiratory diseases for generations to come.”

The SCAPIS project is funded by the Swedish Heart and Lung Foundation. Bergström reports no disclosures. 

This article first appeared on Medscape.com.

Optical CT (OCT) plus cardiac MRI (CMR) provides a more specific diagnosis in the majority of women presenting with myocardial infarction with nonobstructive coronary arteries (MINOCA).

The multimodal imaging strategy identified the underlying cause of MINOCA in 85% of women in the HARP-MINOCA study. Overall, 64% of women had a true MI and 21% had an alternate nonischemic diagnosis, most commonly myocarditis.

The results were presented at the virtual American Heart Association (AHA) Scientific Sessions 2020 and published simultaneously in Circulation.  

MINOCA occurs in up to 15% of patients with MI and is defined as MI meeting the universal definition but with less than 50% stenosis in all major epicardial arteries on angiography and no specific alternate diagnosis to explain the presentation.

It is three times more common in women than in men and also disproportionately affects Black, Hispanic, Maori, and Pacific persons. MINOCA has several causes, leading to uncertainty in diagnostic testing and treatment.

“Different doctors tell patients different messages about MINOCA and may incorrectly say the event wasn’t a heart attack,” Dr. Reynolds said in an earlier press briefing. “I had a patient who was told ‘your arteries are open,’ and they gave her Xanax.”

As part of the Women’s Heart Attack Research Program (HARP), researchers enrolled 301 women with a clinical diagnosis of MI, of whom 170 were diagnosed with MINOCA during angiography and underwent OCT at that time, followed by CMR within 1 week of the acute presentation.

All images were interpreted by an independent core laboratory blinded to results of the other tests and clinical information. The final cohort included 145 women with interpretable OCT images.

Their median age was 60 years, 49.7% were white non-Hispanic, and 97% presented with a provisional diagnosis of non–ST-segment MI. Their median peak troponin level was 0.94 ng/mL.

OCT identified a definite or probable culprit lesion in 46% of women, most commonly atherosclerosis or thrombosis. On multivariable analysis, having a culprit lesion was associated with older age, abnormal angiography findings at the site, and diabetes, but not peak troponin level or severity of angiographic stenosis.

CMR available in 116 women showed evidence of infarction or regional injury in 69%. Multivariate predictors of an abnormal CMR were higher peak troponin and diastolic blood pressure but not an OCT culprit lesion or angiographic stenosis severity.

When the OCT and CMR results were combined, a cause of MINOCA was identified in 84.5% of women. Three-fourths of the causes were ischemic (64% MI) and one-quarter were nonischemic (15% myocarditis, 3% Takotsubo syndrome, and 3% nonischemic cardiomyopathy). In the remaining 15%, no cause of MINOCA was identified.

To emphasize the effect multimodal imaging can have on treatment, Dr. Reynolds highlighted a 44-year-old woman with no risk factors for coronary artery disease who had chest pain in the context of heavy menstrual bleeding, a low hemoglobin level, and peak troponin level of 3.25 ng/mL.

Unexpectedly, imaging revealed a left anterior descending (LAD) plaque rupture in a thin-cap fibroatheroma, causing a small transmural infarction at the terminus of the LAD.

“Without this diagnosis, it’s unlikely she would have received antiplatelet therapy or statins and might have been given a diagnosis of supply/demand mismatch, when the real diagnosis was MI,” Dr. Reynolds observed.

“Finally we can say this is not just crazy women. There is really something going on,” said panelist Roxana Mehran, MD, of the Icahn School of Medicine at Mount Sinai in New York. “You have now told us this is most likely atherosclerosis for pretty much 85% of the cases. So make the diagnosis and, of course, make sure you treat these patients accordingly for risk factor modification, really thinking about a ruptured plaque.”

Combining OCT and MRI may result in a more specific diagnosis and better treatment but also raises costs and logistical considerations.

“Implementation challenges are that not every form of testing is available in every medical center,” Dr. Reynolds said in an interview. “Many centers have cardiac MRI,” whereas “OCT is not currently available at most medical centers where heart attack patients are treated but is available at specialized centers.”

Asked during the session about the use of CT angiography, invited discussant Martha Gulati, MD, president-elect of the American Society for Preventive Cardiology, said, “For me, CT is helpful when I’m not sure if there’s any plaque because the angiogram looked really normal and there was no opportunity to do intracoronary imaging. And sometimes that will help me, in particular, if a patient doesn’t want to take a statin.”

Dr. Gulati pointed out that the European Society of Cardiology MINOCA guidelines recommend OCT and CMR, whereas the 2019 AHA statement on MINOCA, which she coauthored, also recommends OCT and CMR, but almost as one or the other.

“We already said that you should do cardiac MR to try to make a diagnosis, but I think the combination of the two needs to be emphasized when we next draft these guidelines. It really will help,” Dr. Gulati said in an interview.

“But using OCT, particularly, needs to be in the setting of the MI. I don’t think you want to do a procedure again,” she said. “So we really need it to become more widely available because at the time of an MI, you won’t necessarily know that you’re not going to find an obstructive lesion.”

Dr. Gulati pointed out several unanswered questions, including whether the diagnosis was missed in some patients, because OCT of all three vessels was available in only 59%, and how the use of high-sensitivity troponin, which was left up to the individual institution, might affect the usefulness of OCT and CMR.

It’s also unknown whether the mechanism is different for ST-segment elevation MI, as the trial included very few cases, although MINOCA often occurs in this setting. Future OCT/CMR studies will also need to enroll men to determine potential sex differences, if any.

Commenting on the study, B. Hadley Wilson, MD, Sanger Heart & Vascular Institute in Charlotte, N.C., said, “There would need to be further justification of this invasive interventional procedure to be sure that the benefit outweighed the risk of putting a wire and an OCT catheter down patients without any significant angiographic blockage and to assure interventional cardiologists of its value here.”

He pointed out that noninvasive CMR appears helpful in the diagnosis of nearly three-quarters of these patients and perhaps could be done first to direct which of those with an ischemic cause might benefit from invasive OCT at catheterization. This seems most pertinent in patients with a high suspicion of coronary artery disease or recurrent MINOCA.

“Overall, we need to consider the expense, logistics, and small risk of these combined modalities, particularly in everyday practice, before making recommendations,” Dr. Wilson said. “ Since OCT is much less available than intravascular ultrasound, it would require a challenging marketplace paradigm shift to implement this multimodality imaging strategy regionally and locally in the U.S., including the added costs. However, further study to direct the more judicious use of either CMR and/or combined with OCT is warranted in these patients.”

The study was funded by the AHA through a grant from the Go Red for Women Strategically Focused Research Network. Dr. Reynolds reported in-kind donations from Abbott Vascular and Siemens related to the study and nonfinancial support from BioTelemetry outside the study. Dr. Gulati and Dr. Wilson reported having no relevant disclosures.

A version of this article originally appeared on Medscape.com.

Optical CT (OCT) plus cardiac MRI (CMR) provides a more specific diagnosis in the majority of women presenting with myocardial infarction with nonobstructive coronary arteries (MINOCA).

The multimodal imaging strategy identified the underlying cause of MINOCA in 85% of women in the HARP-MINOCA study. Overall, 64% of women had a true MI and 21% had an alternate nonischemic diagnosis, most commonly myocarditis.

The results were presented at the virtual American Heart Association (AHA) Scientific Sessions 2020 and published simultaneously in Circulation.  

MINOCA occurs in up to 15% of patients with MI and is defined as MI meeting the universal definition but with less than 50% stenosis in all major epicardial arteries on angiography and no specific alternate diagnosis to explain the presentation.

It is three times more common in women than in men and also disproportionately affects Black, Hispanic, Maori, and Pacific persons. MINOCA has several causes, leading to uncertainty in diagnostic testing and treatment.

“Different doctors tell patients different messages about MINOCA and may incorrectly say the event wasn’t a heart attack,” Dr. Reynolds said in an earlier press briefing. “I had a patient who was told ‘your arteries are open,’ and they gave her Xanax.”

As part of the Women’s Heart Attack Research Program (HARP), researchers enrolled 301 women with a clinical diagnosis of MI, of whom 170 were diagnosed with MINOCA during angiography and underwent OCT at that time, followed by CMR within 1 week of the acute presentation.

All images were interpreted by an independent core laboratory blinded to results of the other tests and clinical information. The final cohort included 145 women with interpretable OCT images.

Their median age was 60 years, 49.7% were white non-Hispanic, and 97% presented with a provisional diagnosis of non–ST-segment MI. Their median peak troponin level was 0.94 ng/mL.

OCT identified a definite or probable culprit lesion in 46% of women, most commonly atherosclerosis or thrombosis. On multivariable analysis, having a culprit lesion was associated with older age, abnormal angiography findings at the site, and diabetes, but not peak troponin level or severity of angiographic stenosis.

CMR available in 116 women showed evidence of infarction or regional injury in 69%. Multivariate predictors of an abnormal CMR were higher peak troponin and diastolic blood pressure but not an OCT culprit lesion or angiographic stenosis severity.

When the OCT and CMR results were combined, a cause of MINOCA was identified in 84.5% of women. Three-fourths of the causes were ischemic (64% MI) and one-quarter were nonischemic (15% myocarditis, 3% Takotsubo syndrome, and 3% nonischemic cardiomyopathy). In the remaining 15%, no cause of MINOCA was identified.

To emphasize the effect multimodal imaging can have on treatment, Dr. Reynolds highlighted a 44-year-old woman with no risk factors for coronary artery disease who had chest pain in the context of heavy menstrual bleeding, a low hemoglobin level, and peak troponin level of 3.25 ng/mL.

Unexpectedly, imaging revealed a left anterior descending (LAD) plaque rupture in a thin-cap fibroatheroma, causing a small transmural infarction at the terminus of the LAD.

“Without this diagnosis, it’s unlikely she would have received antiplatelet therapy or statins and might have been given a diagnosis of supply/demand mismatch, when the real diagnosis was MI,” Dr. Reynolds observed.

“Finally we can say this is not just crazy women. There is really something going on,” said panelist Roxana Mehran, MD, of the Icahn School of Medicine at Mount Sinai in New York. “You have now told us this is most likely atherosclerosis for pretty much 85% of the cases. So make the diagnosis and, of course, make sure you treat these patients accordingly for risk factor modification, really thinking about a ruptured plaque.”

Combining OCT and MRI may result in a more specific diagnosis and better treatment but also raises costs and logistical considerations.

“Implementation challenges are that not every form of testing is available in every medical center,” Dr. Reynolds said in an interview. “Many centers have cardiac MRI,” whereas “OCT is not currently available at most medical centers where heart attack patients are treated but is available at specialized centers.”

Asked during the session about the use of CT angiography, invited discussant Martha Gulati, MD, president-elect of the American Society for Preventive Cardiology, said, “For me, CT is helpful when I’m not sure if there’s any plaque because the angiogram looked really normal and there was no opportunity to do intracoronary imaging. And sometimes that will help me, in particular, if a patient doesn’t want to take a statin.”

Dr. Gulati pointed out that the European Society of Cardiology MINOCA guidelines recommend OCT and CMR, whereas the 2019 AHA statement on MINOCA, which she coauthored, also recommends OCT and CMR, but almost as one or the other.

“We already said that you should do cardiac MR to try to make a diagnosis, but I think the combination of the two needs to be emphasized when we next draft these guidelines. It really will help,” Dr. Gulati said in an interview.

“But using OCT, particularly, needs to be in the setting of the MI. I don’t think you want to do a procedure again,” she said. “So we really need it to become more widely available because at the time of an MI, you won’t necessarily know that you’re not going to find an obstructive lesion.”

Dr. Gulati pointed out several unanswered questions, including whether the diagnosis was missed in some patients, because OCT of all three vessels was available in only 59%, and how the use of high-sensitivity troponin, which was left up to the individual institution, might affect the usefulness of OCT and CMR.

It’s also unknown whether the mechanism is different for ST-segment elevation MI, as the trial included very few cases, although MINOCA often occurs in this setting. Future OCT/CMR studies will also need to enroll men to determine potential sex differences, if any.

Commenting on the study, B. Hadley Wilson, MD, Sanger Heart & Vascular Institute in Charlotte, N.C., said, “There would need to be further justification of this invasive interventional procedure to be sure that the benefit outweighed the risk of putting a wire and an OCT catheter down patients without any significant angiographic blockage and to assure interventional cardiologists of its value here.”

He pointed out that noninvasive CMR appears helpful in the diagnosis of nearly three-quarters of these patients and perhaps could be done first to direct which of those with an ischemic cause might benefit from invasive OCT at catheterization. This seems most pertinent in patients with a high suspicion of coronary artery disease or recurrent MINOCA.

“Overall, we need to consider the expense, logistics, and small risk of these combined modalities, particularly in everyday practice, before making recommendations,” Dr. Wilson said. “ Since OCT is much less available than intravascular ultrasound, it would require a challenging marketplace paradigm shift to implement this multimodality imaging strategy regionally and locally in the U.S., including the added costs. However, further study to direct the more judicious use of either CMR and/or combined with OCT is warranted in these patients.”

The study was funded by the AHA through a grant from the Go Red for Women Strategically Focused Research Network. Dr. Reynolds reported in-kind donations from Abbott Vascular and Siemens related to the study and nonfinancial support from BioTelemetry outside the study. Dr. Gulati and Dr. Wilson reported having no relevant disclosures.

A version of this article originally appeared on Medscape.com.

Optical CT (OCT) plus cardiac MRI (CMR) provides a more specific diagnosis in the majority of women presenting with myocardial infarction with nonobstructive coronary arteries (MINOCA).

The multimodal imaging strategy identified the underlying cause of MINOCA in 85% of women in the HARP-MINOCA study. Overall, 64% of women had a true MI and 21% had an alternate nonischemic diagnosis, most commonly myocarditis.

The results were presented at the virtual American Heart Association (AHA) Scientific Sessions 2020 and published simultaneously in Circulation.  

MINOCA occurs in up to 15% of patients with MI and is defined as MI meeting the universal definition but with less than 50% stenosis in all major epicardial arteries on angiography and no specific alternate diagnosis to explain the presentation.

It is three times more common in women than in men and also disproportionately affects Black, Hispanic, Maori, and Pacific persons. MINOCA has several causes, leading to uncertainty in diagnostic testing and treatment.

“Different doctors tell patients different messages about MINOCA and may incorrectly say the event wasn’t a heart attack,” Dr. Reynolds said in an earlier press briefing. “I had a patient who was told ‘your arteries are open,’ and they gave her Xanax.”

As part of the Women’s Heart Attack Research Program (HARP), researchers enrolled 301 women with a clinical diagnosis of MI, of whom 170 were diagnosed with MINOCA during angiography and underwent OCT at that time, followed by CMR within 1 week of the acute presentation.

All images were interpreted by an independent core laboratory blinded to results of the other tests and clinical information. The final cohort included 145 women with interpretable OCT images.

Their median age was 60 years, 49.7% were white non-Hispanic, and 97% presented with a provisional diagnosis of non–ST-segment MI. Their median peak troponin level was 0.94 ng/mL.

OCT identified a definite or probable culprit lesion in 46% of women, most commonly atherosclerosis or thrombosis. On multivariable analysis, having a culprit lesion was associated with older age, abnormal angiography findings at the site, and diabetes, but not peak troponin level or severity of angiographic stenosis.

CMR available in 116 women showed evidence of infarction or regional injury in 69%. Multivariate predictors of an abnormal CMR were higher peak troponin and diastolic blood pressure but not an OCT culprit lesion or angiographic stenosis severity.

When the OCT and CMR results were combined, a cause of MINOCA was identified in 84.5% of women. Three-fourths of the causes were ischemic (64% MI) and one-quarter were nonischemic (15% myocarditis, 3% Takotsubo syndrome, and 3% nonischemic cardiomyopathy). In the remaining 15%, no cause of MINOCA was identified.

To emphasize the effect multimodal imaging can have on treatment, Dr. Reynolds highlighted a 44-year-old woman with no risk factors for coronary artery disease who had chest pain in the context of heavy menstrual bleeding, a low hemoglobin level, and peak troponin level of 3.25 ng/mL.

Unexpectedly, imaging revealed a left anterior descending (LAD) plaque rupture in a thin-cap fibroatheroma, causing a small transmural infarction at the terminus of the LAD.

“Without this diagnosis, it’s unlikely she would have received antiplatelet therapy or statins and might have been given a diagnosis of supply/demand mismatch, when the real diagnosis was MI,” Dr. Reynolds observed.

“Finally we can say this is not just crazy women. There is really something going on,” said panelist Roxana Mehran, MD, of the Icahn School of Medicine at Mount Sinai in New York. “You have now told us this is most likely atherosclerosis for pretty much 85% of the cases. So make the diagnosis and, of course, make sure you treat these patients accordingly for risk factor modification, really thinking about a ruptured plaque.”

Combining OCT and MRI may result in a more specific diagnosis and better treatment but also raises costs and logistical considerations.

“Implementation challenges are that not every form of testing is available in every medical center,” Dr. Reynolds said in an interview. “Many centers have cardiac MRI,” whereas “OCT is not currently available at most medical centers where heart attack patients are treated but is available at specialized centers.”

Asked during the session about the use of CT angiography, invited discussant Martha Gulati, MD, president-elect of the American Society for Preventive Cardiology, said, “For me, CT is helpful when I’m not sure if there’s any plaque because the angiogram looked really normal and there was no opportunity to do intracoronary imaging. And sometimes that will help me, in particular, if a patient doesn’t want to take a statin.”

Dr. Gulati pointed out that the European Society of Cardiology MINOCA guidelines recommend OCT and CMR, whereas the 2019 AHA statement on MINOCA, which she coauthored, also recommends OCT and CMR, but almost as one or the other.

“We already said that you should do cardiac MR to try to make a diagnosis, but I think the combination of the two needs to be emphasized when we next draft these guidelines. It really will help,” Dr. Gulati said in an interview.

“But using OCT, particularly, needs to be in the setting of the MI. I don’t think you want to do a procedure again,” she said. “So we really need it to become more widely available because at the time of an MI, you won’t necessarily know that you’re not going to find an obstructive lesion.”

Dr. Gulati pointed out several unanswered questions, including whether the diagnosis was missed in some patients, because OCT of all three vessels was available in only 59%, and how the use of high-sensitivity troponin, which was left up to the individual institution, might affect the usefulness of OCT and CMR.

It’s also unknown whether the mechanism is different for ST-segment elevation MI, as the trial included very few cases, although MINOCA often occurs in this setting. Future OCT/CMR studies will also need to enroll men to determine potential sex differences, if any.

Commenting on the study, B. Hadley Wilson, MD, Sanger Heart & Vascular Institute in Charlotte, N.C., said, “There would need to be further justification of this invasive interventional procedure to be sure that the benefit outweighed the risk of putting a wire and an OCT catheter down patients without any significant angiographic blockage and to assure interventional cardiologists of its value here.”

He pointed out that noninvasive CMR appears helpful in the diagnosis of nearly three-quarters of these patients and perhaps could be done first to direct which of those with an ischemic cause might benefit from invasive OCT at catheterization. This seems most pertinent in patients with a high suspicion of coronary artery disease or recurrent MINOCA.

“Overall, we need to consider the expense, logistics, and small risk of these combined modalities, particularly in everyday practice, before making recommendations,” Dr. Wilson said. “ Since OCT is much less available than intravascular ultrasound, it would require a challenging marketplace paradigm shift to implement this multimodality imaging strategy regionally and locally in the U.S., including the added costs. However, further study to direct the more judicious use of either CMR and/or combined with OCT is warranted in these patients.”

The study was funded by the AHA through a grant from the Go Red for Women Strategically Focused Research Network. Dr. Reynolds reported in-kind donations from Abbott Vascular and Siemens related to the study and nonfinancial support from BioTelemetry outside the study. Dr. Gulati and Dr. Wilson reported having no relevant disclosures.

A version of this article originally appeared on Medscape.com.

No significant differences in major adverse cardiovascular events (MACE) emerged between methotrexate and hydroxychloroquine (HCQ) treatment in a comparison of adults 65 years or older with rheumatoid arthritis. However, researchers reported some elevation in risk for stroke in the methotrexate group and for myocardial infarction and heart failure in the HCQ group.

The primary outcome, a composite of MI, stroke, or cardiovascular death, had an incidence of 23.39 per 1,000 person-years in the methotrexate group versus 24.33 in the HCQ group in this observational study of nearly 60,000 people.

“These results suggest an importance of looking at different individual events of cardiovascular disease rather than the whole ‘CV’ disease only,” Seoyoung Kim, MD, said in an interview. “The other important thing is that the mortality was not significantly different between the two groups.”

For example, the researchers reported 256 cardiovascular-related deaths in the methotrexate group and 263 such deaths in the HCQ cohort.
 

Addressing a recognized risk

“It is well known that patients with rheumatoid arthritis have excessive morbidity and mortality,” Dr. Kim, of the division of rheumatology at Brigham and Women’s Hospital and associate professor of medicine at Harvard Medical School in Boston, said at the virtual annual meeting of the American College of Rheumatology.

Among prior studies in this area, the Cardiovascular Inflammation Reduction Trial (CIRT) found no significant reduction in cardiovascular events among people taking methotrexate versus placebo. However, the study of 4,786 people was not specific to RA, Dr. Kim said. The lack of efficacy on this endpoint prompted researchers to stop CIRT early.

“So what does the conclusion of the CIRT trial mean for rheumatoid arthritis patients?” Dr. Kim asked.

To find out, she and colleagues compared risk of MACE among participants newly starting either methotrexate or HCQ. The study included 59,329 people aged 65 and older who were identified through Medicare claims data from 2008 to 2016. Mean age was 74 years, and 80% were women.

The investigators used propensity score matching to control for multiple covariates for demographics, other medications, and comorbidities. Use of other medications was similar between groups, including glucocorticoids, NSAIDs, and statins. Baseline cardiovascular morbidities likewise were well balanced, Dr. Kim said.

The hazard ratio for the primary MACE outcome was 0.96 (95% confidence interval, 0.86-1.08).

Secondary outcomes

MI was less common in the methotrexate group, for example, with an incidence of 8.49 per 1,000 person-years versus 10.68 per 1,000 person-years in the HCQ cohort. This finding was statically significant, Dr. Kim said, with a hazard ratio of 0.80 favoring methotrexate.

Heart failure also occurred less often in the methotrexate cohort, with an incidence rate of 8.57 per 1,000 person-years versus a rate of 14.24 in the HCQ group. The hazard ratio again favored methotrexate at 0.60.

In contrast, strokes were more common with methotrexate than with (incidence of 7.94 vs. 6.01 per 1,000 person-years).

Another secondary outcome, all-cause mortality, was not significantly different between groups. There were 821 deaths in the methotrexate group (28.65 per 1,000 person-years) and 796 deaths in the HCQ group (31.33 per 1,000 person-years).
 

Studying causality next?

Session moderator Maya Buch, MD, PhD, professor of rheumatology at the University of Manchester (England), asked Dr. Kim why she found significant differences in some secondary outcomes but not the primary composite endpoint.

“When we think of cardiovascular diseases, we tend to think of them all developing through the same mechanism. But perhaps the exact mechanism might not be identical,” Dr. Kim replied. The findings do not suggest causality because the study was observational, she added, “but maybe this will lead to a randomized, controlled trial.”

When asked for comment, Dr. Buch said that the study was “interesting” and “suggestive of differences in type of MACE between the two drugs evaluated,” but that there should be caution in interpreting the findings because of the lack of detailed information on RA disease and activity in claims databases, in addition to other factors, even though the investigators made adjustments for known differences through propensity score matching.

The division of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital supported the study. Dr. Kim has received support for Brigham and Women’s Hospital for unrelated research from Pfizer, AbbVie, Roche, and Bristol-Myers Squibb. Several other coauthors reported having financial relationships with pharmaceutical companies that make drugs for RA. Dr. Buch had no relevant disclosures.

SOURCE: He M et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 1993.

No significant differences in major adverse cardiovascular events (MACE) emerged between methotrexate and hydroxychloroquine (HCQ) treatment in a comparison of adults 65 years or older with rheumatoid arthritis. However, researchers reported some elevation in risk for stroke in the methotrexate group and for myocardial infarction and heart failure in the HCQ group.

The primary outcome, a composite of MI, stroke, or cardiovascular death, had an incidence of 23.39 per 1,000 person-years in the methotrexate group versus 24.33 in the HCQ group in this observational study of nearly 60,000 people.

“These results suggest an importance of looking at different individual events of cardiovascular disease rather than the whole ‘CV’ disease only,” Seoyoung Kim, MD, said in an interview. “The other important thing is that the mortality was not significantly different between the two groups.”

For example, the researchers reported 256 cardiovascular-related deaths in the methotrexate group and 263 such deaths in the HCQ cohort.
 

Addressing a recognized risk

“It is well known that patients with rheumatoid arthritis have excessive morbidity and mortality,” Dr. Kim, of the division of rheumatology at Brigham and Women’s Hospital and associate professor of medicine at Harvard Medical School in Boston, said at the virtual annual meeting of the American College of Rheumatology.

Among prior studies in this area, the Cardiovascular Inflammation Reduction Trial (CIRT) found no significant reduction in cardiovascular events among people taking methotrexate versus placebo. However, the study of 4,786 people was not specific to RA, Dr. Kim said. The lack of efficacy on this endpoint prompted researchers to stop CIRT early.

“So what does the conclusion of the CIRT trial mean for rheumatoid arthritis patients?” Dr. Kim asked.

To find out, she and colleagues compared risk of MACE among participants newly starting either methotrexate or HCQ. The study included 59,329 people aged 65 and older who were identified through Medicare claims data from 2008 to 2016. Mean age was 74 years, and 80% were women.

The investigators used propensity score matching to control for multiple covariates for demographics, other medications, and comorbidities. Use of other medications was similar between groups, including glucocorticoids, NSAIDs, and statins. Baseline cardiovascular morbidities likewise were well balanced, Dr. Kim said.

The hazard ratio for the primary MACE outcome was 0.96 (95% confidence interval, 0.86-1.08).

Secondary outcomes

MI was less common in the methotrexate group, for example, with an incidence of 8.49 per 1,000 person-years versus 10.68 per 1,000 person-years in the HCQ cohort. This finding was statically significant, Dr. Kim said, with a hazard ratio of 0.80 favoring methotrexate.

Heart failure also occurred less often in the methotrexate cohort, with an incidence rate of 8.57 per 1,000 person-years versus a rate of 14.24 in the HCQ group. The hazard ratio again favored methotrexate at 0.60.

In contrast, strokes were more common with methotrexate than with (incidence of 7.94 vs. 6.01 per 1,000 person-years).

Another secondary outcome, all-cause mortality, was not significantly different between groups. There were 821 deaths in the methotrexate group (28.65 per 1,000 person-years) and 796 deaths in the HCQ group (31.33 per 1,000 person-years).
 

Studying causality next?

Session moderator Maya Buch, MD, PhD, professor of rheumatology at the University of Manchester (England), asked Dr. Kim why she found significant differences in some secondary outcomes but not the primary composite endpoint.

“When we think of cardiovascular diseases, we tend to think of them all developing through the same mechanism. But perhaps the exact mechanism might not be identical,” Dr. Kim replied. The findings do not suggest causality because the study was observational, she added, “but maybe this will lead to a randomized, controlled trial.”

When asked for comment, Dr. Buch said that the study was “interesting” and “suggestive of differences in type of MACE between the two drugs evaluated,” but that there should be caution in interpreting the findings because of the lack of detailed information on RA disease and activity in claims databases, in addition to other factors, even though the investigators made adjustments for known differences through propensity score matching.

The division of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital supported the study. Dr. Kim has received support for Brigham and Women’s Hospital for unrelated research from Pfizer, AbbVie, Roche, and Bristol-Myers Squibb. Several other coauthors reported having financial relationships with pharmaceutical companies that make drugs for RA. Dr. Buch had no relevant disclosures.

SOURCE: He M et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 1993.

No significant differences in major adverse cardiovascular events (MACE) emerged between methotrexate and hydroxychloroquine (HCQ) treatment in a comparison of adults 65 years or older with rheumatoid arthritis. However, researchers reported some elevation in risk for stroke in the methotrexate group and for myocardial infarction and heart failure in the HCQ group.

The primary outcome, a composite of MI, stroke, or cardiovascular death, had an incidence of 23.39 per 1,000 person-years in the methotrexate group versus 24.33 in the HCQ group in this observational study of nearly 60,000 people.

“These results suggest an importance of looking at different individual events of cardiovascular disease rather than the whole ‘CV’ disease only,” Seoyoung Kim, MD, said in an interview. “The other important thing is that the mortality was not significantly different between the two groups.”

For example, the researchers reported 256 cardiovascular-related deaths in the methotrexate group and 263 such deaths in the HCQ cohort.
 

Addressing a recognized risk

“It is well known that patients with rheumatoid arthritis have excessive morbidity and mortality,” Dr. Kim, of the division of rheumatology at Brigham and Women’s Hospital and associate professor of medicine at Harvard Medical School in Boston, said at the virtual annual meeting of the American College of Rheumatology.

Among prior studies in this area, the Cardiovascular Inflammation Reduction Trial (CIRT) found no significant reduction in cardiovascular events among people taking methotrexate versus placebo. However, the study of 4,786 people was not specific to RA, Dr. Kim said. The lack of efficacy on this endpoint prompted researchers to stop CIRT early.

“So what does the conclusion of the CIRT trial mean for rheumatoid arthritis patients?” Dr. Kim asked.

To find out, she and colleagues compared risk of MACE among participants newly starting either methotrexate or HCQ. The study included 59,329 people aged 65 and older who were identified through Medicare claims data from 2008 to 2016. Mean age was 74 years, and 80% were women.

The investigators used propensity score matching to control for multiple covariates for demographics, other medications, and comorbidities. Use of other medications was similar between groups, including glucocorticoids, NSAIDs, and statins. Baseline cardiovascular morbidities likewise were well balanced, Dr. Kim said.

The hazard ratio for the primary MACE outcome was 0.96 (95% confidence interval, 0.86-1.08).

Secondary outcomes

MI was less common in the methotrexate group, for example, with an incidence of 8.49 per 1,000 person-years versus 10.68 per 1,000 person-years in the HCQ cohort. This finding was statically significant, Dr. Kim said, with a hazard ratio of 0.80 favoring methotrexate.

Heart failure also occurred less often in the methotrexate cohort, with an incidence rate of 8.57 per 1,000 person-years versus a rate of 14.24 in the HCQ group. The hazard ratio again favored methotrexate at 0.60.

In contrast, strokes were more common with methotrexate than with (incidence of 7.94 vs. 6.01 per 1,000 person-years).

Another secondary outcome, all-cause mortality, was not significantly different between groups. There were 821 deaths in the methotrexate group (28.65 per 1,000 person-years) and 796 deaths in the HCQ group (31.33 per 1,000 person-years).
 

Studying causality next?

Session moderator Maya Buch, MD, PhD, professor of rheumatology at the University of Manchester (England), asked Dr. Kim why she found significant differences in some secondary outcomes but not the primary composite endpoint.

“When we think of cardiovascular diseases, we tend to think of them all developing through the same mechanism. But perhaps the exact mechanism might not be identical,” Dr. Kim replied. The findings do not suggest causality because the study was observational, she added, “but maybe this will lead to a randomized, controlled trial.”

When asked for comment, Dr. Buch said that the study was “interesting” and “suggestive of differences in type of MACE between the two drugs evaluated,” but that there should be caution in interpreting the findings because of the lack of detailed information on RA disease and activity in claims databases, in addition to other factors, even though the investigators made adjustments for known differences through propensity score matching.

The division of pharmacoepidemiology and pharmacoeconomics at Brigham and Women’s Hospital supported the study. Dr. Kim has received support for Brigham and Women’s Hospital for unrelated research from Pfizer, AbbVie, Roche, and Bristol-Myers Squibb. Several other coauthors reported having financial relationships with pharmaceutical companies that make drugs for RA. Dr. Buch had no relevant disclosures.

SOURCE: He M et al. Arthritis Rheumatol. 2020;72(suppl 10): Abstract 1993.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Cardiologists are already old hands at virtual meetings this year and are fast becoming experts on Zoom and other teleconferencing platforms, if not on how to unmute their microphones.

With expectations perhaps elevated and the new communications genre’s novelty on the wane, the American Heart Association (AHA) Scientific Sessions 2020 has a chance to both innovate with familiar formats and captivate with the field’s latest research findings.

Although the virtual AHA 2020 might not satisfy longings for face-to-face networking, shop talk, or kidding around over coffee, it will feature many traditional elements of the live conferences adapted for ear buds and small screens. They include late-breaking science (LBS) presentations and panel discussions, poster and live oral abstract presentations, meet-the-trialist talks, fireside-chat discussion forums, early career events, and satellite symposia.

The event may well hold lessons for future iterations of AHA Scientific Sessions in the postpandemic world, which some foresee as, potentially, an amalgam of the time-honored live format and a robust, complementary online presence.

Late-Breaking Science 1. Friday, November 13, 10:30 AM - 11:30 AM CST

The LBS sessions launch with the GALACTIC-HF trial, which — the world recently learned — may expand the burgeoning list of meds shown to improve clinical outcomes in chronic heart failure (HF) with reduced ejection fraction (HFrEF).

In cursory top-line results announced last month, those in the trial of more than 8000 patients who were randomly assigned to receive omecamtiv mecarbil (Amgen/Cytokinetics/Servier) showed a slight but significant benefit for the primary end point of cardiovascular (CV) death or HF events. The hazard ratio (HR), compared with standard care, was 0.92 (95% CI, 0.86 - 0.99; P = .025), noted a press release from Amgen.

Among the announcement’s few other details was a short take on safety outcomes: no difference in risk for “adverse events, including major ischemic cardiac events,” between the active and control groups. The presentation is sure to provide further insights and caveats, if any, along with other information crucial to the study’s interpretation.

Next on the schedule is the closely watched AFFIRM-AHF, billed as the first major outcomes trial of iron administration to iron-deficient patients with acute HF. It randomly assigned more than 1000 such patients to receive IV ferric carboxymaltose or a placebo. The first dose was given in-hospital and subsequent doses at home for 24 weeks or until patients were no longer iron deficient. They were followed to 1 year for the primary end point of recurrent HF hospitalizations or CV death.

The session wraps with the VITAL Rhythm trial, a substudy of the doubly randomized VITAL trial that explored the effects of vitamin D and omega-3 fatty acid supplementation on CV and cancer risk in more than 25,000 patients in the community. The substudy explored the effects of two active therapies, a preparation of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) (Omacor, Reliant Pharmaceuticals) or vitamin D3 supplements, on new-onset atrial fibrillation (AF) as the primary end point; it also looked at risk for sudden death.
 

Late-Breaking Science 2. Friday, November 13, 12:00 PM - 1:00 PM CST

Dominating the session in two presentations, the (TIPS)-3 trial explored a polypill primary-prevention strategy and daily aspirin with vitamin D supplementation in three separate placebo-controlled comparisons in more than 5700 “intermediate risk” participants 55 years and older, mostly in developing countries.

The daily polypill in this trial is a combination of hydrochlorothiazide 25 mg, atenolol 100 mg, ramipril 10 mg, and simvastatin 40 mg; aspirin was given at 75 mg daily and vitamin D at 60,000 IU monthly.

The participants are followed for a primary end point composed of major CV disease, HF, resuscitated cardiac arrest, or ischemia-driven revascularization for the polypill comparison; CV events or cancer for the aspirin comparison; and fracture risk for the vitamin D component of the trial.

In the Swedish Cardiopulmonary Bioimage Study (SCAPIS), presented third in the session, a random sample of adults from throughout Sweden, projected at about 30,000, underwent a 2-day evaluation for metabolic risk factors plus ultrasound and coronary and lung CT scans. The group has been followed for risks for myocardial infarction (MI), sudden death, and other cardiac diseases; and chronic obstructive pulmonary disease (COPD) and other lung disorders.
 

Late-Breaking Science 3. Saturday, November 14, 12:00 PM - 1:00 PM CST

The field may learn more mechanistically about MI associated with nonobstructed coronary arteries (MINOCA) than ever before from the Heart Attack Research Program-Imaging Study (HARP). The observational study is enrolling a projected 450 patients with suspected MI and ischemic symptoms who were referred for cardiac catheterization.

Their evaluation includes coronary optical coherence tomographic (OCT) scanning and cardiac magnetic resonance (CMR) imaging for evidence of coronary plaque disruption as the primary end point. The patients are to be followed for 10 years for a composite of death, unstable angina, stroke, recurrent MI, diagnostic or interventional catheterization, and cardiac hospitalization.

The major direct oral anticoagulant (DOAC) comparisons with warfarin in atrial fibrillation (AF) didn’t include many patients with prosthetic valve implants. In contrast, the RIVER trial enrolled 1005 adults with either persistent or paroxysmal AF and bioprosthetic mitral valves and assigned them to rivaroxaban 20 mg or the vitamin K antagonist.

The presentation will include the noninferiority primary outcome of major clinical events, which is stroke, transient ischemic attack (TIA), major bleeding, death from any cause, valve thrombosis, other systemic embolism, or HF hospitalization over 12 months.

This session also includes ALPHEUS, a trial pitting ticagrelor (Brilinta/Brilique, AstraZeneca) against mainstay clopidogrel in a setting that is mostly uncharted for such comparisons, elective percutaneous coronary intervention (PCI).

About 1900 patients with stable coronary disease were randomly assigned to a month of treatment with either agent on top of continuous aspirin. The primary end point is PCI-related MI or myocardial injury within 48 hours of the procedure.
 

Late-Breaking Science 4. Sunday, November 15, 9:00 AM - 10:00 AM CST

The Self-Assessment Method for Statin Side-effects Or Nocebo (SAMSON) trial may be one of the AHA 2020 frontrunners for early buzz and anticipation. So it’s with some irony that it’s also among the smallest of the LBS studies, at 60 patients, which was nonetheless considered sufficient due to its unusual design.

SAMSON is the latest and perhaps most rigorous attempt to clarify whether symptoms, especially muscle pain or discomfort, attributed to statins by many patients are pharmacologic in origin or, rather, a nocebo effect from negative expectations about statin side effects.

The study patients, all of whom had previously halted statins because of side effects, were assigned to follow three separate regimens, each for month, in a randomized order; they did that four times, for a total of 12 months. The regimens consisted of atorvastatin 20 mg daily, a placebo, or neither.

Patients kept daily logs of any perceived side effects. Parity between side effects experienced on the statin and the placebo would point to a nocebo effect, whereas a significant excess on atorvastatin would suggest they are direct drug effects.

The session also features two randomized trials each on a unique omega-3 fatty acid preparation for either secondary prevention or high-risk primary prevention, in both cases compared with a corn-oil placebo.

The Omega-3 Fatty Acids in Elderly Patients with Myocardial Infarction (OMEMI) trial randomly assigned more than 1000 elderly post-MI patients to take Pikasol (Orkla Care) at 1.8 g EPA and DHA per day or the placebo. It looked for all-cause mortality, nonfatal MI, stroke, revascularization, or hospitalization for new or worsened HF over 24 months.

The STRENGTH trial, with a planned enrollment of about 13,000 high-vascular-risk patients, looked primarily at the effect of daily treatment with Epanova (AstraZeneca), which also contains DHA and EPA, on the composite of CV death, nonfatal MI or stroke, coronary revascularization, and hospitalization for unstable angina. The trial was halted early for low likelihood of benefit, AstraZeneca announced in January of this year.
 

Late-Breaking Science 5. Sunday, November 15, 7:15 PM - 8:30 PM CST

Slated for the session is the primary analysis of the PIONEER 3 trial, conducted in the United States, Europe, and Japan. It compared the BuMA Supreme biodegradable drug-coated stent (SinoMed) with the durable Xience (Abbott Vascular) and Promus (Boston Scientific) drug-eluting stents. The trial followed more than 1600 patients treated for chronic stable angina or acute coronary syndrome (ACS) for the 1-year composite of cardiac death, target-vessel-related MI, and clinically driven target-lesion revascularization.
 

Late-Breaking Science 6. Monday, November 16, 9:00 AM - 10:00 AM CST

The EARLY-AF trial enrolled 303 patients with symptomatic paroxysmal or persistent AF suitable for catheter ablation, assigning them to pulmonary vein isolation (PVI) by cryoablation using the Arctic Front (Medtronic) system or antiarrhythmic drug therapy for rhythm control. The primary end point is time to recurrence of AF, atrial flutter, or atrial tachycardia, whether symptomatic or asymptomatic, as determined by implantable loop recorder. Patients will also be followed for symptoms and arrhythmia burden.

Also in the session, the SEARCH-AF study randomized almost 400 patients undergoing cardiac surgery who were engaged subacutely with one of two commercial portable cardiac rhythm monitoring devices (CardioSTAT, Icentia; or SEEQ, Medtronic) or, alternatively, to receive usual postoperative care

The patients, considered to be at high risk for stroke with no history of AF, were followed for the primary end point of cumulative burden of AF or atrial flutter exceeding 6 minutes or documentation of either arrhythmia by 12-lead ECG within 30 days.

Two other studies in the session look at different approaches to AF screening, one using a handheld ECG monitor in the primary care setting and the other wearable monitors in the form of a patch or wristband. The VITAL-AF presentation is titled “Screening for Atrial Fibrillation in Older Adults at Primary Care Visits Using Single Lead Electrocardiograms.” The other presentation, on the study mSToPS, is called “Three-Year Clinical Outcomes in a Nationwide, Randomized, Pragmatic Clinical Trial of Atrial Fibrillation Screening — Mhealth Screening to Prevent Strokes.”
 

Late-Breaking Science 7. Monday, November 16, 7:00 PM - 8:30 PM CST

In the randomized FIDELIO-DKD trial with more than 5700 patients with type 2 diabetes and associated kidney disease, those assigned to the novel mineralocorticoid receptor antagonist (MRA) finerenone (Bayer) showed an 18% drop in risk for adverse renal events, including death from renal causes (P = .001), over a median of 2.6 years. That primary outcome was previously presented in detail at a nephrology meeting and published in the New England Journal of Medicine in October.

Patients on the MRA showed a similar reduction in a composite CV-event end point, it was also reported at that time. A follow-up presentation at the AHA sessions promises to dive deeper into the trial’s CV outcomes.

In the RAPID-CTCA study, slated next for the session, 1749 patients with suspected or confirmed intermediate-risk ACS were randomly assigned to undergo computed tomographic coronary angiography (CTCA) for guiding treatment decisions or a standard-of-care strategy. It followed patients for the primary end point of death or nonfatal MI over 1 year.

Rilonacept (Arcalyst, Kiniksa/Regeneron) is an interleukin-1α and -1β inhibitor used in several autoinflammatory diseases that went unsuccessfully before regulators for the treatment of gout. The RHAPSODY trial has now explored its use against recurrent pericarditis in a randomized trial that entered 86 patients 12 years and older who had previously experienced at least three episodes.

In top-line results reported to investors in June, patients assigned to receive the drug instead of placebo in weekly injections showed a 96% drop in risk for pericarditis recurrence and “no or minimal pain” on more than 90% of days in the trial. A full presentation is expected during this LBS session.

Also on the schedule is the THALES study, which led the US Food and Drug Administration (FDA) to expand indications for ticagrelor to include stroke prevention in patients with a history of acute ischemic stroke or high-risk TIA based on the trial’s primary results published in July.

In THALES, more than 11,000 patients with mild to moderate acute noncardiogenic ischemic stroke or TIA were randomly assigned within 24 hours to start on daily aspirin with or without ticagrelor given as a 180 mg loading dose followed by 90 mg twice daily for 30 days.

At the end of a month, it was reported, those on dual antiplatelet therapy showed a 17% risk reduction (P = .02) for the primary end point of stroke or death, at the cost of a slight but significant increase in “severe” bleeding (0.5% vs 0.1%; P = .001).

The session is to conclude with two related studies that fell victim in part to the COVID-19 pandemic, both of which explored sotagliflozin (Zynquista, Sanofi/Lexicon), an inhibitor of both sodium-glucose cotransporters 1 and 2 (SGLT1 and SGLT2, respectively) in patients with type 2 diabetes.

SOLOIST-WHF had entered 1222 such patients hospitalized with urgent or worsening HF at 466 centers and randomly assigned them to receive sotagliflozin or placebo; they were followed for the composite of CV death or HF events. SCORED reached an enrollment of 10,584 patients with diabetes and chronic kidney disease at 754 hospitals, following them for the same primary end point.

Lexicon announced in March that the trials would be “closed out early” because of the unavailability of funding “together with uncertainties relating to the COVID-19 pandemic on the trials.” The LBS presentation is expected to include analyses of available data; SOLOIST-WHF launched in summer 2018 and SCORED began in November 2017.
 

Late-Breaking Science 8. Tuesday, November 17, 9:00 AM - 10:00 AM CST

Most of this LBS session is devoted to the AHA COVID-19 Cardiovascular Disease registry, which is looking at the hospital journey, clinical course, and outcomes of patients hospitalized with SARS-CoV-2 infections at centers participating in the organization’s Get With The Guidelines (GWTG) quality-improvement program. As of September, the registry included data from more than 15,000 patients.

Scheduled presentations include a summary of the registry’s design and initial results; an analysis of racial and ethnic variation in therapy and clinical outcomes; an exploration of how body mass index influenced outcomes, including death, use of mechanical ventilation, and cardiovascular end points, in patients with COVID-19; and a deep dive into the relation between CV disease and clinical outcomes in the cohort.

The last of this LBS block’s five talks will cover the randomized Influenza Vaccine to Effectively Stop Cardio Thoracic Events and Decompensated Heart Failure (INVESTED) trial, which compared vaccination with high-dose trivalent influenza vaccine or a standard-dose quadrivalent vaccine in 5388 adults with a history of hospitalization for either MI or HF. Patients were required to have at least one other CV risk factor, such as older age, reduced left ventricular ejection fraction, or diabetes.

INVESTED tracked the patients at 190 centers across an initial pilot flu season and three subsequent flu seasons for the primary end point of death from any cause or cardiopulmonary hospitalization.

The trial is one of at least three that have been looking at the effect of flu vaccination on cardiovascular outcomes; results from the other two — IAMI, with more than 2500 participants, and RCT-IVVE, with an enrollment of 4871 — are planned for presentation in 2021, theheart.org | Medscape Cardiology recently reported.
 

Late-Breaking Science 9. Tuesday, November 17, 12:00 PM - 1:00 PM CST

The conference’s concluding LBS session features three studies that relied on technologic strategies for modifying patient compliance and other care behaviors and one that used human-centered design principles to develop a group-care model aimed improving the management of diabetes, hypertension, and other noncommunicable diseases in economically disadvantaged regions of Kenya.

The EPIC-HF trial tested a strategy for improving HFrEF medication-plan engagement by use of a video and documents delivered to patients several times by email or text prior to their follow-up clinic appointments. The strategy was compared with usual care for its effect on HF-medication optimization over 1 month and 1 year in a total of 306 patients.

Following EPIC-HF on the schedule is the MYROAD trial, looking at the efficacy of discharge instructions provided to patients with acute HF as an audio recording that they and their physicians could replay on demand, the idea being to increase adherence to the instructions. The trial’s 1073 patients were assigned to the novel strategy or usual care and followed for HF rehospitalization within 30 days.

MYROAD is to be followed by a presentation entitled “Digital Care Transformation: One-Year Report of >5,000 Patients Enrolled in a Remote Algorithm-Based CV Risk Management Program to Achieve Optimal Lipid and Hypertension Control.”

Rounding out the LBS session: the Bridging Income Generation With Group Integrated Care (BIGPIC) program, a pilot study that developed and executed “a healthcare delivery model targeting health behaviors, medication adherence, and financial barriers to accessing healthcare” in four rural counties in Kenya.

The model features locally developed plans, tailored for regional needs, that are said to “combine the benefits of microfinance with the peer support available through group medical care to enhance management of hypertension and diabetes.” The microfinance component is aimed at improving household economies to alleviate the financial burden of care and clinic attendance, and for the health effects of improved quality of life.

The study randomized 2890 adults with diabetes or prediabetes to one of four groups: usual care plus microfinance group support, group medical visits only or combined with microfinance group support, or usual care only. They were followed for changes in systolic blood pressure and CV-risk score over 12 months.

Lloyd-Jones and Fauci declared no conflicts.

This article first appeared on Medscape.com.

Febuxostat (Uloric) emerged as noninferior to allopurinol regarding risk of cardiovascular death among people 60 years and older with gout and at least one additional cardiovascular risk factor, results of the Febuxostat versus Allopurinol Streamlined Trial (FAST) suggest.

This primary outcome of the FAST trial stands in contrast to results of the CARES trial in 2018. The CARES researchers previously reported a 4.3% increased risk of cardiovascular death associated with febuxostat, compared with a 3.2% rate with allopurinol, a statistically significant 34% increase in the relative risk.

“In contrast to previous studies, there was no evidence of increased mortality with febuxostat, and we believe the regulators should review febuxostat licensing restrictions,” senior author Thomas MacDonald, MD, of the University of Dundee (Scotland), said during a late-breaking abstract session at the virtual annual meeting of the American College of Rheumatology.

The results of the FAST trial were simultaneously published online in The Lancet.

Both febuxostat and allopurinol treat gout by lowering urate levels. Concerns about the cardiovascular safety of febuxostat led to two post-licensing studies: the Cardiovascular Safety of Febuxostat and Allopurinol in Participants with Gout and Cardiovascular Comorbidities (CARES) study, mandated by the U.S. Food and Drug Administration, and FAST, requested by the European Medicines Agency. In February 2019, the FDA added a warning about elevated cardiovascular death and death risk associated with febuxostat.

“When CARES was published, it was somewhat of a threat to our study,” Dr. MacDonald said. “After hearing from our data-monitoring committee, we were told we could continue the trial.”
 

Some switched from allopurinol to febuxostat

So Dr. MacDonald, lead author Isla Mackenzie, MBChB, and their colleagues enrolled 6,128 people with gout in the United Kingdom, Sweden, and Denmark between December 2011 and January 2018. They followed patients for a median of 4 years. Participants had a mean age of 71 years, 85% were men, and 33% had a history of cardiovascular disease. The investigators excluded anyone with a stroke or myocardial infarction in the previous 6 months.

All participants were being treated with allopurinol. The investigators titrated those not at target up to an ideal dose that achieved a serum urate concentration of less than 0.357 mmol/L (< 6 mg/dL). Next, they randomly assigned 3,065 people to continue allopurinol and another 3,063 to switch to 80-120 mg of febuxostat.

The primary outcome of the multicenter, prospective, randomized, open-label FAST trial was a composite of hospitalization for nonfatal MI or biomarker positive for acute coronary syndrome, nonfatal stroke, or cardiovascular death.
 

Key findings

“There was definitely a noninferior primary outcome,” Dr. MacDonald said. In the on-treatment analysis, 172 patients in the febuxostat group reached the composite endpoint versus 241 patients in the allopurinol group. There were 1.72 events per 100 patient-years in the febuxostat group versus 2.05 events in the allopurinol group (adjusted hazard ratio, 0.85; 95% confidence interval, 0.70-1.03). An intent-to-treat analysis also found that febuxostat was noninferior to allopurinol on this measure.

Urate levels were approximately 80 micromoles lower in the febuxostat group versus the allopurinol group each year of the study, Dr. MacDonald said.

At least one gout flare was experienced by 1,017 patients in the febuxostat group and by 1,044 participants in the allopurinol group. “However, there was no placebo group, so we don’t know the effectiveness of either of these agents at preventing flares” based on this research, he said.

Both the on-treatment and intention-to-treat (ITT) secondary analyses demonstrated the noninferiority of febuxostat, compared with allopurinol, for all-cause death, each individual component of the composite primary outcome – cardiovascular death, hospitalization for heart failure, and hospitalization for new, unstable, or worsening angina.

In contrast, the ITT analysis revealed a “nominally significant increase” in hospitalization for arrhythmia with no evidence of ischemia in the febuxostat group. The 0.583 events per 100 patient-years in this group versus 0.385 events in the allopurinol cohort generated an adjusted HR of 1.51 (95% CI, 1.05-2.17).

In terms of all-cause mortality, 222 participants (7.2%) in the febuxostat group died, compared with 263 people (8.6%) in the allopurinol group.

Adverse events and withdrawals

A total 1,720 participants (57.3%) in the febuxostat group experienced at least one serious adverse event, as did 1,812 participants (59.4%) in the allopurinol group. Less than 1% of serious adverse events in each group were considered treatment-related.

Dr. MacDonald said that 6.2% of the febuxostat patients and 5.5% of the allopurinol group withdrew from the study. “We had pretty good follow-up [94%],” Dr. MacDonald said. “I don’t want to criticize CARES, but 47% did drop out of that study, and they could not follow them anymore.”

Limitations of FAST include its open-label design and lack of a placebo group, although Dr. MacDonald pointed out that a placebo group would have been unethical. Strengths included its large randomized trial design and good external validity, he added. “This is what will happen in clinical practice if you switch people from allopurinol to febuxostat.”

When asked how he would treat people with gout now given the FAST findings, Dr. MacDonald said, “I’m not a rheumatologist, I’m a cardiovascular physician. But I would say from the evidence from the FAST trial, it appears to be safe to give patients febuxostat whether or not they have cardiovascular risk factors or prior cardiovascular disease.”

“The FAST study indicates that febuxostat is similar to allopurinol in terms of cardiovascular events during the treatment period. The strengths of this study are its large sample size, excellent follow-up rate, and the relatively long follow-up time,” session moderator Shervin Assassi, MD, said when asked for comment. Dr. Assassi, director of the division of rheumatology at the University of Texas Health Science Center at Houston, was not involved in the research.

Menarini, Ipsen, and Teijin Pharma funded the study. The University of Dundee receives research funds from Menarini. Dr. MacDonald disclosed that he received speaker or consultant fees from Menarini. Dr. Assassi had no relevant disclosures.

SOURCE: MacDonald T et al. Arthritis Rheumatol. 2020;72(suppl 10). ACR 2020, Abstract L08.

Febuxostat (Uloric) emerged as noninferior to allopurinol regarding risk of cardiovascular death among people 60 years and older with gout and at least one additional cardiovascular risk factor, results of the Febuxostat versus Allopurinol Streamlined Trial (FAST) suggest.

This primary outcome of the FAST trial stands in contrast to results of the CARES trial in 2018. The CARES researchers previously reported a 4.3% increased risk of cardiovascular death associated with febuxostat, compared with a 3.2% rate with allopurinol, a statistically significant 34% increase in the relative risk.

“In contrast to previous studies, there was no evidence of increased mortality with febuxostat, and we believe the regulators should review febuxostat licensing restrictions,” senior author Thomas MacDonald, MD, of the University of Dundee (Scotland), said during a late-breaking abstract session at the virtual annual meeting of the American College of Rheumatology.

The results of the FAST trial were simultaneously published online in The Lancet.

Both febuxostat and allopurinol treat gout by lowering urate levels. Concerns about the cardiovascular safety of febuxostat led to two post-licensing studies: the Cardiovascular Safety of Febuxostat and Allopurinol in Participants with Gout and Cardiovascular Comorbidities (CARES) study, mandated by the U.S. Food and Drug Administration, and FAST, requested by the European Medicines Agency. In February 2019, the FDA added a warning about elevated cardiovascular death and death risk associated with febuxostat.

“When CARES was published, it was somewhat of a threat to our study,” Dr. MacDonald said. “After hearing from our data-monitoring committee, we were told we could continue the trial.”
 

Some switched from allopurinol to febuxostat

So Dr. MacDonald, lead author Isla Mackenzie, MBChB, and their colleagues enrolled 6,128 people with gout in the United Kingdom, Sweden, and Denmark between December 2011 and January 2018. They followed patients for a median of 4 years. Participants had a mean age of 71 years, 85% were men, and 33% had a history of cardiovascular disease. The investigators excluded anyone with a stroke or myocardial infarction in the previous 6 months.

All participants were being treated with allopurinol. The investigators titrated those not at target up to an ideal dose that achieved a serum urate concentration of less than 0.357 mmol/L (< 6 mg/dL). Next, they randomly assigned 3,065 people to continue allopurinol and another 3,063 to switch to 80-120 mg of febuxostat.

The primary outcome of the multicenter, prospective, randomized, open-label FAST trial was a composite of hospitalization for nonfatal MI or biomarker positive for acute coronary syndrome, nonfatal stroke, or cardiovascular death.
 

Key findings

“There was definitely a noninferior primary outcome,” Dr. MacDonald said. In the on-treatment analysis, 172 patients in the febuxostat group reached the composite endpoint versus 241 patients in the allopurinol group. There were 1.72 events per 100 patient-years in the febuxostat group versus 2.05 events in the allopurinol group (adjusted hazard ratio, 0.85; 95% confidence interval, 0.70-1.03). An intent-to-treat analysis also found that febuxostat was noninferior to allopurinol on this measure.

Urate levels were approximately 80 micromoles lower in the febuxostat group versus the allopurinol group each year of the study, Dr. MacDonald said.

At least one gout flare was experienced by 1,017 patients in the febuxostat group and by 1,044 participants in the allopurinol group. “However, there was no placebo group, so we don’t know the effectiveness of either of these agents at preventing flares” based on this research, he said.

Both the on-treatment and intention-to-treat (ITT) secondary analyses demonstrated the noninferiority of febuxostat, compared with allopurinol, for all-cause death, each individual component of the composite primary outcome – cardiovascular death, hospitalization for heart failure, and hospitalization for new, unstable, or worsening angina.

In contrast, the ITT analysis revealed a “nominally significant increase” in hospitalization for arrhythmia with no evidence of ischemia in the febuxostat group. The 0.583 events per 100 patient-years in this group versus 0.385 events in the allopurinol cohort generated an adjusted HR of 1.51 (95% CI, 1.05-2.17).

In terms of all-cause mortality, 222 participants (7.2%) in the febuxostat group died, compared with 263 people (8.6%) in the allopurinol group.

Adverse events and withdrawals

A total 1,720 participants (57.3%) in the febuxostat group experienced at least one serious adverse event, as did 1,812 participants (59.4%) in the allopurinol group. Less than 1% of serious adverse events in each group were considered treatment-related.

Dr. MacDonald said that 6.2% of the febuxostat patients and 5.5% of the allopurinol group withdrew from the study. “We had pretty good follow-up [94%],” Dr. MacDonald said. “I don’t want to criticize CARES, but 47% did drop out of that study, and they could not follow them anymore.”

Limitations of FAST include its open-label design and lack of a placebo group, although Dr. MacDonald pointed out that a placebo group would have been unethical. Strengths included its large randomized trial design and good external validity, he added. “This is what will happen in clinical practice if you switch people from allopurinol to febuxostat.”

When asked how he would treat people with gout now given the FAST findings, Dr. MacDonald said, “I’m not a rheumatologist, I’m a cardiovascular physician. But I would say from the evidence from the FAST trial, it appears to be safe to give patients febuxostat whether or not they have cardiovascular risk factors or prior cardiovascular disease.”

“The FAST study indicates that febuxostat is similar to allopurinol in terms of cardiovascular events during the treatment period. The strengths of this study are its large sample size, excellent follow-up rate, and the relatively long follow-up time,” session moderator Shervin Assassi, MD, said when asked for comment. Dr. Assassi, director of the division of rheumatology at the University of Texas Health Science Center at Houston, was not involved in the research.

Menarini, Ipsen, and Teijin Pharma funded the study. The University of Dundee receives research funds from Menarini. Dr. MacDonald disclosed that he received speaker or consultant fees from Menarini. Dr. Assassi had no relevant disclosures.

SOURCE: MacDonald T et al. Arthritis Rheumatol. 2020;72(suppl 10). ACR 2020, Abstract L08.

Febuxostat (Uloric) emerged as noninferior to allopurinol regarding risk of cardiovascular death among people 60 years and older with gout and at least one additional cardiovascular risk factor, results of the Febuxostat versus Allopurinol Streamlined Trial (FAST) suggest.

This primary outcome of the FAST trial stands in contrast to results of the CARES trial in 2018. The CARES researchers previously reported a 4.3% increased risk of cardiovascular death associated with febuxostat, compared with a 3.2% rate with allopurinol, a statistically significant 34% increase in the relative risk.

“In contrast to previous studies, there was no evidence of increased mortality with febuxostat, and we believe the regulators should review febuxostat licensing restrictions,” senior author Thomas MacDonald, MD, of the University of Dundee (Scotland), said during a late-breaking abstract session at the virtual annual meeting of the American College of Rheumatology.

The results of the FAST trial were simultaneously published online in The Lancet.

Both febuxostat and allopurinol treat gout by lowering urate levels. Concerns about the cardiovascular safety of febuxostat led to two post-licensing studies: the Cardiovascular Safety of Febuxostat and Allopurinol in Participants with Gout and Cardiovascular Comorbidities (CARES) study, mandated by the U.S. Food and Drug Administration, and FAST, requested by the European Medicines Agency. In February 2019, the FDA added a warning about elevated cardiovascular death and death risk associated with febuxostat.

“When CARES was published, it was somewhat of a threat to our study,” Dr. MacDonald said. “After hearing from our data-monitoring committee, we were told we could continue the trial.”
 

Some switched from allopurinol to febuxostat

So Dr. MacDonald, lead author Isla Mackenzie, MBChB, and their colleagues enrolled 6,128 people with gout in the United Kingdom, Sweden, and Denmark between December 2011 and January 2018. They followed patients for a median of 4 years. Participants had a mean age of 71 years, 85% were men, and 33% had a history of cardiovascular disease. The investigators excluded anyone with a stroke or myocardial infarction in the previous 6 months.

All participants were being treated with allopurinol. The investigators titrated those not at target up to an ideal dose that achieved a serum urate concentration of less than 0.357 mmol/L (< 6 mg/dL). Next, they randomly assigned 3,065 people to continue allopurinol and another 3,063 to switch to 80-120 mg of febuxostat.

The primary outcome of the multicenter, prospective, randomized, open-label FAST trial was a composite of hospitalization for nonfatal MI or biomarker positive for acute coronary syndrome, nonfatal stroke, or cardiovascular death.
 

Key findings

“There was definitely a noninferior primary outcome,” Dr. MacDonald said. In the on-treatment analysis, 172 patients in the febuxostat group reached the composite endpoint versus 241 patients in the allopurinol group. There were 1.72 events per 100 patient-years in the febuxostat group versus 2.05 events in the allopurinol group (adjusted hazard ratio, 0.85; 95% confidence interval, 0.70-1.03). An intent-to-treat analysis also found that febuxostat was noninferior to allopurinol on this measure.

Urate levels were approximately 80 micromoles lower in the febuxostat group versus the allopurinol group each year of the study, Dr. MacDonald said.

At least one gout flare was experienced by 1,017 patients in the febuxostat group and by 1,044 participants in the allopurinol group. “However, there was no placebo group, so we don’t know the effectiveness of either of these agents at preventing flares” based on this research, he said.

Both the on-treatment and intention-to-treat (ITT) secondary analyses demonstrated the noninferiority of febuxostat, compared with allopurinol, for all-cause death, each individual component of the composite primary outcome – cardiovascular death, hospitalization for heart failure, and hospitalization for new, unstable, or worsening angina.

In contrast, the ITT analysis revealed a “nominally significant increase” in hospitalization for arrhythmia with no evidence of ischemia in the febuxostat group. The 0.583 events per 100 patient-years in this group versus 0.385 events in the allopurinol cohort generated an adjusted HR of 1.51 (95% CI, 1.05-2.17).

In terms of all-cause mortality, 222 participants (7.2%) in the febuxostat group died, compared with 263 people (8.6%) in the allopurinol group.

Adverse events and withdrawals

A total 1,720 participants (57.3%) in the febuxostat group experienced at least one serious adverse event, as did 1,812 participants (59.4%) in the allopurinol group. Less than 1% of serious adverse events in each group were considered treatment-related.

Dr. MacDonald said that 6.2% of the febuxostat patients and 5.5% of the allopurinol group withdrew from the study. “We had pretty good follow-up [94%],” Dr. MacDonald said. “I don’t want to criticize CARES, but 47% did drop out of that study, and they could not follow them anymore.”

Limitations of FAST include its open-label design and lack of a placebo group, although Dr. MacDonald pointed out that a placebo group would have been unethical. Strengths included its large randomized trial design and good external validity, he added. “This is what will happen in clinical practice if you switch people from allopurinol to febuxostat.”

When asked how he would treat people with gout now given the FAST findings, Dr. MacDonald said, “I’m not a rheumatologist, I’m a cardiovascular physician. But I would say from the evidence from the FAST trial, it appears to be safe to give patients febuxostat whether or not they have cardiovascular risk factors or prior cardiovascular disease.”

“The FAST study indicates that febuxostat is similar to allopurinol in terms of cardiovascular events during the treatment period. The strengths of this study are its large sample size, excellent follow-up rate, and the relatively long follow-up time,” session moderator Shervin Assassi, MD, said when asked for comment. Dr. Assassi, director of the division of rheumatology at the University of Texas Health Science Center at Houston, was not involved in the research.

Menarini, Ipsen, and Teijin Pharma funded the study. The University of Dundee receives research funds from Menarini. Dr. MacDonald disclosed that he received speaker or consultant fees from Menarini. Dr. Assassi had no relevant disclosures.

SOURCE: MacDonald T et al. Arthritis Rheumatol. 2020;72(suppl 10). ACR 2020, Abstract L08.

Giving crushed prasugrel (Effient) to patients with ST-segment elevation myocardial infarction (STEMI) en route to a planned primary percutaneous coronary intervention (PCI) does not improve reperfusion rates, results of the COMPARE CRUSH trial show.

Patients assigned to prasugrel as crushed or integral tablets had similar rates of the study’s co-primary endpoints of thrombolysis in myocardial infarction (TIMI) 3 flow in the infarct-related artery at first angiography (31% vs. 32.7%; P = .64) and complete ST-segment resolution 1 hour post PCI (59.9% vs. 57.3%; P = .55).

“These findings hold in spite of the fact that crushed tablets of prasugrel led to more potent platelet inhibition compared with integral tablets,” said study author Georgios Vlachojannis, MD, PhD, University Medical Center Utrecht, the Netherlands.

“Whether faster and more potent antiplatelet therapy can improve coronary reperfusion in contemporary STEMI treatment regimen warrants further investigation.”

The results were reported in a late-breaking clinical science session at the Transcatheter Cardiovascular Therapeutics virtual annual meeting and published simultaneously in the journal Circulation. The meeting was sponsored by the Cardiovascular Research Foundation.

Fibrinolytics and glycoprotein IIb/IIIa inhibitors have demonstrated improved coronary reperfusion and outcomes when given pre hospital. Prior studies have also shown that early administration of a crushed P2Y12 inhibitor increases bioavailability and speeds platelet inhibition in STEMI patients, Dr. Vlachojannis noted.

However, the large randomized ATLANTIC trial, which compared prehospital to cath lab administration of crushed or integral ticagrelor (Brilinta), also found no difference in either TIMI flow in the infarct-related artery or ST-segment resolution.

Between November 2017 and March 2020, the investigator-initiated COMPARE CRUSH trial randomly allocated 727 STEMI patients (mean age, 62 years; 23% female) undergoing primary PCI to receive in the ambulance a 60-mg loading dose of prasugrel as either crushed or integral tablets.

The median time from onset of symptoms to first medical contact was 59 minutes, from first medical contact to study treatment 22 minutes, and from study treatment to primary PCI 57 minutes. These times did not differ between groups.

Platelet reactivity at the beginning of coronary angiography was significantly lower in the crushed group than in the integral group (P2Y12 reactivity units 192 vs. 227; P < .01). This resulted in significantly fewer patients in the crushed group with high platelet reactivity, defined as P2Y12 reactivity units >208, prior to the start of PCI (43.3% vs. 62.6%; P < .01).

There was no difference between the crushed and integral groups in the primary safety endpoint of TIMI major and BARC type 3 or higher bleeding within 48 hours after study treatment (0.4% vs 0.7%).

Death, MI, stroke, and urgent revascularization rates were also similar between groups during index hospitalization and at 30 days. Definite stent thrombosis occurred in one patient in the crushed group and two patients in the integral group.

In an exploratory analysis, the co-primary endpoint results were consistent across multiple subgroups, although there was a trend toward greater benefit on TIMI 3 flow in the crushed tablet group in patients older than age 75 years (P for interaction = .04), presenting with anterior infarction (P for interaction = .03), or with a history of prior PCI (P for interaction < .01).

“However, these results should be regarded as hypothesis-generating,” the authors wrote. “Opioids use in the ambulance was remarkably low in our study compared with the ATLANTIC trial, which might explain that we did not observe any significant interaction.”

Notably, morphine was used in half the ATLANTIC patients and was thought to have possibly delayed the absorption of ticagrelor.

During discussion following the presentation, Sunil V. Rao, MD, Duke University Medical Center, Durham, N.C., asked: “Based on what you found, which is really no clinical advantage but no safety issue either, are you having your patients with ST-segment MI administering crushed prasugrel now?”

Dr. Vlachojannis said they didn’t see any clinical impact but reiterated that high platelet reactivity was reduced by one-third. “If this now translates into a safer primary PCI procedure, we can’t say. The study wasn’t powered for this kind of endpoint. Is this enough to give you a recommendation, Sunil, I’m not sure.”

“What we know with COMPARE CRUSH, and this is important, is that we tried to give the medication as soon as possible and tried to give this medication in a formulation which has the most favorable pharmacodynamics profile, and we still see it’s not doing the job,” he added.

Fellow panelist Philippe Gabriel Steg, MD, Imperial College London, questioned whether treatment time may play a role in teasing out the relatively modest differences that platelet reactivity may have on clinical outcomes.

Dr. Vlachojannis said the time from symptom onset to first medical contact was very fast and similar to that in the ATLANTIC trial. “The short time intervals have certainly influenced the outcomes.”

Panelist Marco Valgimigli, MD, PhD, University Hospital Bern, Switzerland, followed up on the morphine issue, asking whether the investigators tested for an interaction between morphine or opioid use and platelet reactivity at the time of PCI.

“We haven’t looked into this but you probably have the ON-TIME 3 data in your mind when you’re asking this, where crushed ticagrelor given in the ambulance didn’t influence platelet reactivity at the time point of PCI,” Dr. Vlachojannis said. “We are going to look further into the data and certainly the platelet reactivity analysis is going to be very interesting in this data set.”

The study was an investigator-initiated trial sponsored by Maasstad Cardiovascular Research B.V. with unrestricted grants from Shanghai MicroPort Medical and Daiichi Sankyo. Dr. Vlachojannis declared receiving consulting fees from AstraZeneca, and research grants from Daiichi Sankyo and Shanghai MicroPort.

A version of this article originally appeared on Medscape.com.

Giving crushed prasugrel (Effient) to patients with ST-segment elevation myocardial infarction (STEMI) en route to a planned primary percutaneous coronary intervention (PCI) does not improve reperfusion rates, results of the COMPARE CRUSH trial show.

Patients assigned to prasugrel as crushed or integral tablets had similar rates of the study’s co-primary endpoints of thrombolysis in myocardial infarction (TIMI) 3 flow in the infarct-related artery at first angiography (31% vs. 32.7%; P = .64) and complete ST-segment resolution 1 hour post PCI (59.9% vs. 57.3%; P = .55).

“These findings hold in spite of the fact that crushed tablets of prasugrel led to more potent platelet inhibition compared with integral tablets,” said study author Georgios Vlachojannis, MD, PhD, University Medical Center Utrecht, the Netherlands.

“Whether faster and more potent antiplatelet therapy can improve coronary reperfusion in contemporary STEMI treatment regimen warrants further investigation.”

The results were reported in a late-breaking clinical science session at the Transcatheter Cardiovascular Therapeutics virtual annual meeting and published simultaneously in the journal Circulation. The meeting was sponsored by the Cardiovascular Research Foundation.

Fibrinolytics and glycoprotein IIb/IIIa inhibitors have demonstrated improved coronary reperfusion and outcomes when given pre hospital. Prior studies have also shown that early administration of a crushed P2Y12 inhibitor increases bioavailability and speeds platelet inhibition in STEMI patients, Dr. Vlachojannis noted.

However, the large randomized ATLANTIC trial, which compared prehospital to cath lab administration of crushed or integral ticagrelor (Brilinta), also found no difference in either TIMI flow in the infarct-related artery or ST-segment resolution.

Between November 2017 and March 2020, the investigator-initiated COMPARE CRUSH trial randomly allocated 727 STEMI patients (mean age, 62 years; 23% female) undergoing primary PCI to receive in the ambulance a 60-mg loading dose of prasugrel as either crushed or integral tablets.

The median time from onset of symptoms to first medical contact was 59 minutes, from first medical contact to study treatment 22 minutes, and from study treatment to primary PCI 57 minutes. These times did not differ between groups.

Platelet reactivity at the beginning of coronary angiography was significantly lower in the crushed group than in the integral group (P2Y12 reactivity units 192 vs. 227; P < .01). This resulted in significantly fewer patients in the crushed group with high platelet reactivity, defined as P2Y12 reactivity units >208, prior to the start of PCI (43.3% vs. 62.6%; P < .01).

There was no difference between the crushed and integral groups in the primary safety endpoint of TIMI major and BARC type 3 or higher bleeding within 48 hours after study treatment (0.4% vs 0.7%).

Death, MI, stroke, and urgent revascularization rates were also similar between groups during index hospitalization and at 30 days. Definite stent thrombosis occurred in one patient in the crushed group and two patients in the integral group.

In an exploratory analysis, the co-primary endpoint results were consistent across multiple subgroups, although there was a trend toward greater benefit on TIMI 3 flow in the crushed tablet group in patients older than age 75 years (P for interaction = .04), presenting with anterior infarction (P for interaction = .03), or with a history of prior PCI (P for interaction < .01).

“However, these results should be regarded as hypothesis-generating,” the authors wrote. “Opioids use in the ambulance was remarkably low in our study compared with the ATLANTIC trial, which might explain that we did not observe any significant interaction.”

Notably, morphine was used in half the ATLANTIC patients and was thought to have possibly delayed the absorption of ticagrelor.

During discussion following the presentation, Sunil V. Rao, MD, Duke University Medical Center, Durham, N.C., asked: “Based on what you found, which is really no clinical advantage but no safety issue either, are you having your patients with ST-segment MI administering crushed prasugrel now?”

Dr. Vlachojannis said they didn’t see any clinical impact but reiterated that high platelet reactivity was reduced by one-third. “If this now translates into a safer primary PCI procedure, we can’t say. The study wasn’t powered for this kind of endpoint. Is this enough to give you a recommendation, Sunil, I’m not sure.”

“What we know with COMPARE CRUSH, and this is important, is that we tried to give the medication as soon as possible and tried to give this medication in a formulation which has the most favorable pharmacodynamics profile, and we still see it’s not doing the job,” he added.

Fellow panelist Philippe Gabriel Steg, MD, Imperial College London, questioned whether treatment time may play a role in teasing out the relatively modest differences that platelet reactivity may have on clinical outcomes.

Dr. Vlachojannis said the time from symptom onset to first medical contact was very fast and similar to that in the ATLANTIC trial. “The short time intervals have certainly influenced the outcomes.”

Panelist Marco Valgimigli, MD, PhD, University Hospital Bern, Switzerland, followed up on the morphine issue, asking whether the investigators tested for an interaction between morphine or opioid use and platelet reactivity at the time of PCI.

“We haven’t looked into this but you probably have the ON-TIME 3 data in your mind when you’re asking this, where crushed ticagrelor given in the ambulance didn’t influence platelet reactivity at the time point of PCI,” Dr. Vlachojannis said. “We are going to look further into the data and certainly the platelet reactivity analysis is going to be very interesting in this data set.”

The study was an investigator-initiated trial sponsored by Maasstad Cardiovascular Research B.V. with unrestricted grants from Shanghai MicroPort Medical and Daiichi Sankyo. Dr. Vlachojannis declared receiving consulting fees from AstraZeneca, and research grants from Daiichi Sankyo and Shanghai MicroPort.

A version of this article originally appeared on Medscape.com.

Giving crushed prasugrel (Effient) to patients with ST-segment elevation myocardial infarction (STEMI) en route to a planned primary percutaneous coronary intervention (PCI) does not improve reperfusion rates, results of the COMPARE CRUSH trial show.

Patients assigned to prasugrel as crushed or integral tablets had similar rates of the study’s co-primary endpoints of thrombolysis in myocardial infarction (TIMI) 3 flow in the infarct-related artery at first angiography (31% vs. 32.7%; P = .64) and complete ST-segment resolution 1 hour post PCI (59.9% vs. 57.3%; P = .55).

“These findings hold in spite of the fact that crushed tablets of prasugrel led to more potent platelet inhibition compared with integral tablets,” said study author Georgios Vlachojannis, MD, PhD, University Medical Center Utrecht, the Netherlands.

“Whether faster and more potent antiplatelet therapy can improve coronary reperfusion in contemporary STEMI treatment regimen warrants further investigation.”

The results were reported in a late-breaking clinical science session at the Transcatheter Cardiovascular Therapeutics virtual annual meeting and published simultaneously in the journal Circulation. The meeting was sponsored by the Cardiovascular Research Foundation.

Fibrinolytics and glycoprotein IIb/IIIa inhibitors have demonstrated improved coronary reperfusion and outcomes when given pre hospital. Prior studies have also shown that early administration of a crushed P2Y12 inhibitor increases bioavailability and speeds platelet inhibition in STEMI patients, Dr. Vlachojannis noted.

However, the large randomized ATLANTIC trial, which compared prehospital to cath lab administration of crushed or integral ticagrelor (Brilinta), also found no difference in either TIMI flow in the infarct-related artery or ST-segment resolution.

Between November 2017 and March 2020, the investigator-initiated COMPARE CRUSH trial randomly allocated 727 STEMI patients (mean age, 62 years; 23% female) undergoing primary PCI to receive in the ambulance a 60-mg loading dose of prasugrel as either crushed or integral tablets.

The median time from onset of symptoms to first medical contact was 59 minutes, from first medical contact to study treatment 22 minutes, and from study treatment to primary PCI 57 minutes. These times did not differ between groups.

Platelet reactivity at the beginning of coronary angiography was significantly lower in the crushed group than in the integral group (P2Y12 reactivity units 192 vs. 227; P < .01). This resulted in significantly fewer patients in the crushed group with high platelet reactivity, defined as P2Y12 reactivity units >208, prior to the start of PCI (43.3% vs. 62.6%; P < .01).

There was no difference between the crushed and integral groups in the primary safety endpoint of TIMI major and BARC type 3 or higher bleeding within 48 hours after study treatment (0.4% vs 0.7%).

Death, MI, stroke, and urgent revascularization rates were also similar between groups during index hospitalization and at 30 days. Definite stent thrombosis occurred in one patient in the crushed group and two patients in the integral group.

In an exploratory analysis, the co-primary endpoint results were consistent across multiple subgroups, although there was a trend toward greater benefit on TIMI 3 flow in the crushed tablet group in patients older than age 75 years (P for interaction = .04), presenting with anterior infarction (P for interaction = .03), or with a history of prior PCI (P for interaction < .01).

“However, these results should be regarded as hypothesis-generating,” the authors wrote. “Opioids use in the ambulance was remarkably low in our study compared with the ATLANTIC trial, which might explain that we did not observe any significant interaction.”

Notably, morphine was used in half the ATLANTIC patients and was thought to have possibly delayed the absorption of ticagrelor.

During discussion following the presentation, Sunil V. Rao, MD, Duke University Medical Center, Durham, N.C., asked: “Based on what you found, which is really no clinical advantage but no safety issue either, are you having your patients with ST-segment MI administering crushed prasugrel now?”

Dr. Vlachojannis said they didn’t see any clinical impact but reiterated that high platelet reactivity was reduced by one-third. “If this now translates into a safer primary PCI procedure, we can’t say. The study wasn’t powered for this kind of endpoint. Is this enough to give you a recommendation, Sunil, I’m not sure.”

“What we know with COMPARE CRUSH, and this is important, is that we tried to give the medication as soon as possible and tried to give this medication in a formulation which has the most favorable pharmacodynamics profile, and we still see it’s not doing the job,” he added.

Fellow panelist Philippe Gabriel Steg, MD, Imperial College London, questioned whether treatment time may play a role in teasing out the relatively modest differences that platelet reactivity may have on clinical outcomes.

Dr. Vlachojannis said the time from symptom onset to first medical contact was very fast and similar to that in the ATLANTIC trial. “The short time intervals have certainly influenced the outcomes.”

Panelist Marco Valgimigli, MD, PhD, University Hospital Bern, Switzerland, followed up on the morphine issue, asking whether the investigators tested for an interaction between morphine or opioid use and platelet reactivity at the time of PCI.

“We haven’t looked into this but you probably have the ON-TIME 3 data in your mind when you’re asking this, where crushed ticagrelor given in the ambulance didn’t influence platelet reactivity at the time point of PCI,” Dr. Vlachojannis said. “We are going to look further into the data and certainly the platelet reactivity analysis is going to be very interesting in this data set.”

The study was an investigator-initiated trial sponsored by Maasstad Cardiovascular Research B.V. with unrestricted grants from Shanghai MicroPort Medical and Daiichi Sankyo. Dr. Vlachojannis declared receiving consulting fees from AstraZeneca, and research grants from Daiichi Sankyo and Shanghai MicroPort.

A version of this article originally appeared on Medscape.com.

“I disapprove of what you say, but I will defend to the death your right to say it.” The choice of the secretary general of the European Association for Cardio-Thoracic Surgery to open with this quote was the first hint that the next presentation at the 2019 annual meeting would be anything but dull. The session chair followed with a reminder to keep the discussion polite and civil.

Presenter David Taggart, MD, PhD, did not disappoint. The professor of cardiovascular surgery at the University of Oxford (England) began with the announcement that he had withdrawn his name from a recent paper in the New England Journal of Medicine. He then proceeded to accuse his coinvestigators of misrepresenting the findings of a major clinical trial.

Dr. Taggart was chair of the surgical committee for the Abbott-sponsored EXCEL trial, which compared two procedures for patients who had blockages in their left main coronary artery: percutaneous coronary intervention (PCI) using coronary stents, and coronary artery bypass graft surgery (CABG). The investigators designed the trial to compare outcomes for the two treatments using a composite endpoint of death, stroke, and MI. The 3-year follow-up data had been published in NEJM without controversy – or, at least, without public controversy.

But when it came time to publish the 5-year follow-up, there was a significantly higher rate of death in the stent group, and both Dr. Taggart and the journal editors were concerned that this finding was being downplayed in the manuscript.

In their comments to the authors, the journal editors had recommended including the mortality difference (unless clearly trivial) ‘”in the concluding statement in the final paragraph.” Yet, the concluding statement of the published paper read that there “was no significant difference between PCI and CABG.”

In Dr. Taggart’s view, that claim was dangerous for patients, and so he was left with no choice but to remove himself as an author, a first for the academic with over 300 scientific papers to his name.

Earlier publications from the EXCEL trial had influenced European treatment guidelines. But subsequent allegations of misconduct and hidden data spurred the EACTS to repudiate those guidelines out of concern “that some results in the EXCEL trial appear to have been concealed and that some patients may therefore have received the wrong clinical advice.”

The controversy pitted cardiothoracic surgeons against interventional cardiologists, who were seen as increasingly encroaching on the surgeons’ turf. Dr. Taggart was a long-time critic of the subspecialty.

Surgeons demanded an independent analysis of the EXCEL trial data – a demand that the investigators have yet to satisfy. Dr. Taggart was the first to speak publicly, but others had major reservations about the trial reporting and conduct years earlier.
 

Mortality data held back

One such person was Lars Wallentin, MD, a professor of cardiology at Uppsala (Sweden) University Hospital, who chaired the independent committee that monitored the safety and scientific validity of the EXCEL trial.

The committee, known as the data and safety monitoring board (DSMB), received a report on March 23, 2016, that showed that increasingly more patients who had received stents were dying, compared with the group of patients that had undergone CABG. A graph of the survival curves showed the gap between the two groups widening after 3 years (Figure 1).

By September of that year, Dr. Wallentin and other members of the DSMB were anxious to share the concerning mortality difference with the broader medical community.

They were aware that EACTS and the European Society of Cardiology had started the process of updating their guidelines on myocardial revascularization, and were keen for the guideline writing committee to see all of the data.

Meanwhile, the trial investigators, led by principal investigator Gregg Stone, MD, then at New York–Presbyterian Hospital and Columbia University Medical Center, were preparing to publish a report of the 3-year outcomes. Recruitment for EXCEL started in September 2010, so at the time of the 3-year analysis in 2016, some patients had been followed up for over 5 years. But the data, published in NEJM in October 2016, were capped at 3 years (Figure 2). It didn’t show the widening gap in late mortality that Dr. Wallentin and the rest of the DSMB had seen.

When asked about this, the investigators said they were transparent about their plans to cap the data at 3 years in an amendment to the study protocol. Stone’s coprincipal investigators were interventional cardiologist Patrick Serruys, MD, then of Imperial College London; and two surgeons: Joseph Sabik, MD, then of the Cleveland Clinic Foundation, and A. Pieter Kappetein, MD, PhD, then at Erasmus Medical Center, Rotterdam. The four principal investigators all declared financial payments from stent manufacturers either to themselves or their institutions.

Study sponsor Abbott has distanced itself from the decisions made and has referred all questions about the trial to the EXCEL investigators. Charles Simonton, chief medical officer at Abbott (now at Abiomed) was a coauthor on both the 3- and 5-year papers. Dr. Wallentin believes that the sponsor must have been aware of the DSMB’s concerns.
 

Continuing DSMB concerns

A year later, the DSMB was still troubled. Dr. Wallentin emailed Dr. Stone in September 2017 asking for an updated analysis of the mortality data without any capping in time.

Dr. Wallentin added that he didn’t think that unblinding the mortality results would be an issue at that stage because these were late deaths in a trial where the interventions were long completed. But, he warned, “it might be very concerning if, in the future, suspicions were raised that already available information on mortality was withheld from the cardiology and thoracic surgery community.”

The investigators took a month to respond. They declined the request, saying that the trial was not statistically powered to measure mortality. In his email to Dr. Wallentin, Dr. Stone stressed that they were committed to complete disclosure of all of the EXCEL data and that the responsible time point to unblind was after 4 years. His coprincipal investigators (Dr. Serruys, Dr. Sabik, and Dr. Kappetein) as well as EXCEL statistical committee chair Stuart Pocock, PhD, and Mr. Simonton were all copied on the email.

Dr. Wallentin deferred to the principal investigators’ arguments.
 

Missing MI data

Death was not the only outcome of the EXCEL trial to draw scrutiny.

The EXCEL investigators used a unique definition of MI that was almost exclusively based on a rise in the cardiac biomarker CK-MB. This protocol definition of MI was later adapted into the Society for Cardiovascular Angiography and Interventions definition in a paper coauthored by Dr. Stone. The investigators agreed to also measure MIs that met the more commonly used Third Universal Definition as a secondary endpoint. The Third Universal Definition of Myocardial Infarction uses a change in biomarkers – preferably troponin or alternatively CK-MB – coupled with other clinical signs.

It is standard practice to report secondary endpoints in any analysis of the main findings of a study. Yet, the EXCEL investigators did not report the universal definition of MI in either the 3-year or 5-year publications.

This is critical because MI according to one definition may not count according to the other, and the final tally could tip the trial results positive, negative, or neutral for coronary stents.

In Dr. Taggart’s opinion, the protocol definition puts CABG at a disadvantage because it uses the same biomarker threshold for procedural-related MI for both PCI and CABG. Because surgery involves more manipulation of the heart, cardiac enzyme levels will naturally be higher after CABG than PCI. These procedure-related enzyme elevations are not “true clinical MIs,” according to Dr. Taggart and others.

Late last year, a dataset containing the 3-year follow-up of EXCEL, including the information on the universal definition of MI, was leaked to the BBC. Working with biostatisticians, the BBC confirmed that according to this definition, there were more MIs in the stent group.

Originally, the investigators disputed the finding, calling the BBC data “imaginary.” They claimed that they were unable to calculate a rate of MI according to the universal definition because they lacked routine collection of troponins, although the universal definition also allows use of CK-MB. They have since published an analysis of 5-year MI data according to the universal definition, which showed twice the rate of MI in the PCI group.

From the leaked data, the BBC calculated the main composite endpoint of death, stroke, and MI using the universal definition of MI. Now the results swung in favor of CABG.
 

Impact on guidelines

None of this was known at the time the European cardiology societies convened a committee to write their new guidelines on myocardial revascularization. The writing panel disagreed about whether PCI and CABG were equivalent for patients with left main coronary artery disease (CAD).

Besides EXCEL, another study, the NOBLE trial, compared PCI and CABG in left main CAD and came to opposite conclusions – conclusions that matched the leaked data. In that trial, European investigators chose a slightly different primary endpoint: a composite of death, MI, stroke, and the need for a repeat procedure. They used the universal definition of MI exclusively, and notably, they omitted procedural MI from their clinical event count. The results, published at the same time as the EXCEL 3-year findings, suggested that CABG was better.

Given the discrepant findings of two large trials, the guideline committee considered all of the available data comparing the two methods of revascularization for left main CAD. But even then, things weren’t clear-cut. One draft meta-analysis, supported by the National Institute for Health Research, suggested that results were worse for first- and second-generation drug-eluting coronary stents – including those used in EXCEL – compared with surgery.

Another meta-analysis, later published in The Lancet, drew a different conclusion and found that PCI was just as good as surgery. The main author, Stuart Head, a cardiothoracic surgeon on the ESC/EACTS guideline committee, was a research fellow with EXCEL investigator Dr. Kappetein at Erasmus. EXCEL investigators Dr. Stone, Dr. Kappetein, and Dr. Serruys were coauthors of the Lancet meta-analysis.

There was heated discussion about the committee’s draft recommendations, which gave both CABG and PCI a Class IA recommendation in patients with left main CAD and low anatomical complexity. In October 2017, the ESC commissioned an anonymous external reviewer to weigh in. James Brophy, MD, PhD, a cardiologist and professor of medicine and epidemiology at McGill University, Montreal, confirmed that he was the reviewer after he published an updated version in June 2020.

Looking at all of the data available at the time comparing the procedures for left main CAD, Dr. Brophy’s analysis suggested a 73% chance that the excess in death, stroke, or MI represents at least two excess events per 100 patients treated with PCI rather than CABG.

Dr. Brophy thought that most patients would find these differences clinically meaningful and advised against giving both procedures the same class of recommendation. He was also concerned that many readers will skip to the summary recommendation table without reading the entire guideline document.

“I feel this is misleading in its present form,” he wrote in 2017.

Despite Dr. Brophy’s review, the guideline committee stuck with its original recommendations. The final 2018 ESC/EACTS Guidelines on myocardial revascularization gave equal weight to both CABG and PCI in patients with left main CAD and low anatomical complexity. In contrast, US guidelines do not put PCI and CABG on the same footing for any group of patients with left main CAD.

The lead author of the ESC/EACTS guidelines section on left main disease, and around a third of those on the writing task force, all declared financial payments from stent manufacturers either to themselves or their institutions. The EXCEL principal investigator, Dr. Kappetein, was secretary general of EACTS and oversaw the guidelines process for the surgical organization. He left to work for Medtronic midway through the process and was later joined there by his former research fellow, Stuart Head.

Dr. Brophy said in an interview that given the final guideline recommendations, he assumed that the committee had other reviews and went with the majority opinion.

But not everyone involved in the guidelines saw Dr. Brophy’s review. Nick Freemantle, a statistical reviewer appointed by EACTS, expected to see it but didn’t. This omission calls into question the neutrality of the whole process, in his view.

Mr. Freemantle believes that the deck was stacked so that he only saw the pieces of evidence that supported the conclusions that were already decided and that he was not shown “the bits that don’t fit that neatly.”

“And without that narrative, it all feels a bit grubby, to be honest,” he said.

Professor Barbara Casadei, ESC president, disputed this, saying that the guidelines were approved by all surgical members, including the EACTS council.

Missing from Dr. Brophy’s review were the later data from EXCEL. As he had told the DSMB in 2017, Stone presented the 4-year data from EXCEL at the TCT conference in September 2018. At this point, the analysis showed that 10.3% of people had died after PCI and 7.4% after CABG.

But this presentation was not given much prominence at the conference, which Dr. Stone organized, and occurred during a didactic session in a small room rather than on one of the main stages where the 3-year data from EXCEL were announced with much fanfare. The presentation also took place 3 weeks after the European guidelines were published.
 

Surgeons withdraw support

After the BBC report last year that the universal definition of MI data had been collected but not published in the 3-year follow-up manuscript, and showed more MI in the PCI group than the protocol definition, the EACTS withdrew its support for the guidelines. The ESC continued to uphold the guidelines «until there is robust scientific evidence (as opposed to allegations) indicating we should do otherwise,” said Ms. Casadei.

A spokesperson for NEJM said the journal stood by the EXCEL papers because “there is no credible harm to patients from the publication of the paper and accurate reporting of trial results.” NEJM has since conducted a review and published a series of letters in response. The letters have reinvigorated rather than appeased the dissenters, as reported by Medscape.

A number of cardiologists and researchers started a petition on change.org to revise the EACTS/ESC left main CAD guidelines, and surgical societies across the globe have written to the editor of NEJM asking him to retract or amend the EXCEL papers.

This has not happened. The journal’s editor maintains that the letters containing the analyses are “sufficient information” to allow readers and guideline authors to “evaluate the trial findings.”

Dr. Taggart was dismissive of that response. “There is still no recognition or acknowledgment that failure to publish these data in 2016 ‘misled’ the guideline writers for the ESC/EACTS guidelines, and there is still no formal correction of the 2016 and 2019 NEJM manuscripts.”

Over a year after the BBC received the leaked data, the EXCEL investigators published an analysis of the primary outcome using the universal definition of MI data in the Journal of the American College of Cardiology.

It shows 141 events in the PCI arm, compared with 102 in the CABG arm. The investigators acknowledge that the rates of procedural MI differ depending on the definition used. According to their analysis, the protocol definition was predictive of mortality after both treatments, whereas the universal definition of procedural MI was predictive of mortality only after CABG. Not everyone agrees with this interpretation, and an accompanying editorial questioned these conclusions.

For Dr. Wallentin, it’s a relief that these data are in the public domain so that their interpretation and clinical consequences can be “openly discussed.” He hoped that the whole experience will result in something constructive and useful for the future.

As for the guidelines, the tide may be turning.

In a joint statement with EACTS on Oct. 6, 2020, the ESC agreed to review its guidelines for left main disease in the light of emerging, longer-term outcome data from the trials of CABG versus PCI.

Dr. Taggart has no regrets about speaking out despite this being “an exceedingly painful and bruising experience.”

The saga, he said, “reflects very badly on our specialty, the investigators, industry, and the world’s ‘leading’ medical journal.”

This article first appeared on Medscape.com.

“I disapprove of what you say, but I will defend to the death your right to say it.” The choice of the secretary general of the European Association for Cardio-Thoracic Surgery to open with this quote was the first hint that the next presentation at the 2019 annual meeting would be anything but dull. The session chair followed with a reminder to keep the discussion polite and civil.

Presenter David Taggart, MD, PhD, did not disappoint. The professor of cardiovascular surgery at the University of Oxford (England) began with the announcement that he had withdrawn his name from a recent paper in the New England Journal of Medicine. He then proceeded to accuse his coinvestigators of misrepresenting the findings of a major clinical trial.

Dr. Taggart was chair of the surgical committee for the Abbott-sponsored EXCEL trial, which compared two procedures for patients who had blockages in their left main coronary artery: percutaneous coronary intervention (PCI) using coronary stents, and coronary artery bypass graft surgery (CABG). The investigators designed the trial to compare outcomes for the two treatments using a composite endpoint of death, stroke, and MI. The 3-year follow-up data had been published in NEJM without controversy – or, at least, without public controversy.

But when it came time to publish the 5-year follow-up, there was a significantly higher rate of death in the stent group, and both Dr. Taggart and the journal editors were concerned that this finding was being downplayed in the manuscript.

In their comments to the authors, the journal editors had recommended including the mortality difference (unless clearly trivial) ‘”in the concluding statement in the final paragraph.” Yet, the concluding statement of the published paper read that there “was no significant difference between PCI and CABG.”

In Dr. Taggart’s view, that claim was dangerous for patients, and so he was left with no choice but to remove himself as an author, a first for the academic with over 300 scientific papers to his name.

Earlier publications from the EXCEL trial had influenced European treatment guidelines. But subsequent allegations of misconduct and hidden data spurred the EACTS to repudiate those guidelines out of concern “that some results in the EXCEL trial appear to have been concealed and that some patients may therefore have received the wrong clinical advice.”

The controversy pitted cardiothoracic surgeons against interventional cardiologists, who were seen as increasingly encroaching on the surgeons’ turf. Dr. Taggart was a long-time critic of the subspecialty.

Surgeons demanded an independent analysis of the EXCEL trial data – a demand that the investigators have yet to satisfy. Dr. Taggart was the first to speak publicly, but others had major reservations about the trial reporting and conduct years earlier.
 

Mortality data held back

One such person was Lars Wallentin, MD, a professor of cardiology at Uppsala (Sweden) University Hospital, who chaired the independent committee that monitored the safety and scientific validity of the EXCEL trial.

The committee, known as the data and safety monitoring board (DSMB), received a report on March 23, 2016, that showed that increasingly more patients who had received stents were dying, compared with the group of patients that had undergone CABG. A graph of the survival curves showed the gap between the two groups widening after 3 years (Figure 1).

By September of that year, Dr. Wallentin and other members of the DSMB were anxious to share the concerning mortality difference with the broader medical community.

They were aware that EACTS and the European Society of Cardiology had started the process of updating their guidelines on myocardial revascularization, and were keen for the guideline writing committee to see all of the data.

Meanwhile, the trial investigators, led by principal investigator Gregg Stone, MD, then at New York–Presbyterian Hospital and Columbia University Medical Center, were preparing to publish a report of the 3-year outcomes. Recruitment for EXCEL started in September 2010, so at the time of the 3-year analysis in 2016, some patients had been followed up for over 5 years. But the data, published in NEJM in October 2016, were capped at 3 years (Figure 2). It didn’t show the widening gap in late mortality that Dr. Wallentin and the rest of the DSMB had seen.

When asked about this, the investigators said they were transparent about their plans to cap the data at 3 years in an amendment to the study protocol. Stone’s coprincipal investigators were interventional cardiologist Patrick Serruys, MD, then of Imperial College London; and two surgeons: Joseph Sabik, MD, then of the Cleveland Clinic Foundation, and A. Pieter Kappetein, MD, PhD, then at Erasmus Medical Center, Rotterdam. The four principal investigators all declared financial payments from stent manufacturers either to themselves or their institutions.

Study sponsor Abbott has distanced itself from the decisions made and has referred all questions about the trial to the EXCEL investigators. Charles Simonton, chief medical officer at Abbott (now at Abiomed) was a coauthor on both the 3- and 5-year papers. Dr. Wallentin believes that the sponsor must have been aware of the DSMB’s concerns.
 

Continuing DSMB concerns

A year later, the DSMB was still troubled. Dr. Wallentin emailed Dr. Stone in September 2017 asking for an updated analysis of the mortality data without any capping in time.

Dr. Wallentin added that he didn’t think that unblinding the mortality results would be an issue at that stage because these were late deaths in a trial where the interventions were long completed. But, he warned, “it might be very concerning if, in the future, suspicions were raised that already available information on mortality was withheld from the cardiology and thoracic surgery community.”

The investigators took a month to respond. They declined the request, saying that the trial was not statistically powered to measure mortality. In his email to Dr. Wallentin, Dr. Stone stressed that they were committed to complete disclosure of all of the EXCEL data and that the responsible time point to unblind was after 4 years. His coprincipal investigators (Dr. Serruys, Dr. Sabik, and Dr. Kappetein) as well as EXCEL statistical committee chair Stuart Pocock, PhD, and Mr. Simonton were all copied on the email.

Dr. Wallentin deferred to the principal investigators’ arguments.
 

Missing MI data

Death was not the only outcome of the EXCEL trial to draw scrutiny.

The EXCEL investigators used a unique definition of MI that was almost exclusively based on a rise in the cardiac biomarker CK-MB. This protocol definition of MI was later adapted into the Society for Cardiovascular Angiography and Interventions definition in a paper coauthored by Dr. Stone. The investigators agreed to also measure MIs that met the more commonly used Third Universal Definition as a secondary endpoint. The Third Universal Definition of Myocardial Infarction uses a change in biomarkers – preferably troponin or alternatively CK-MB – coupled with other clinical signs.

It is standard practice to report secondary endpoints in any analysis of the main findings of a study. Yet, the EXCEL investigators did not report the universal definition of MI in either the 3-year or 5-year publications.

This is critical because MI according to one definition may not count according to the other, and the final tally could tip the trial results positive, negative, or neutral for coronary stents.

In Dr. Taggart’s opinion, the protocol definition puts CABG at a disadvantage because it uses the same biomarker threshold for procedural-related MI for both PCI and CABG. Because surgery involves more manipulation of the heart, cardiac enzyme levels will naturally be higher after CABG than PCI. These procedure-related enzyme elevations are not “true clinical MIs,” according to Dr. Taggart and others.

Late last year, a dataset containing the 3-year follow-up of EXCEL, including the information on the universal definition of MI, was leaked to the BBC. Working with biostatisticians, the BBC confirmed that according to this definition, there were more MIs in the stent group.

Originally, the investigators disputed the finding, calling the BBC data “imaginary.” They claimed that they were unable to calculate a rate of MI according to the universal definition because they lacked routine collection of troponins, although the universal definition also allows use of CK-MB. They have since published an analysis of 5-year MI data according to the universal definition, which showed twice the rate of MI in the PCI group.

From the leaked data, the BBC calculated the main composite endpoint of death, stroke, and MI using the universal definition of MI. Now the results swung in favor of CABG.
 

Impact on guidelines

None of this was known at the time the European cardiology societies convened a committee to write their new guidelines on myocardial revascularization. The writing panel disagreed about whether PCI and CABG were equivalent for patients with left main coronary artery disease (CAD).

Besides EXCEL, another study, the NOBLE trial, compared PCI and CABG in left main CAD and came to opposite conclusions – conclusions that matched the leaked data. In that trial, European investigators chose a slightly different primary endpoint: a composite of death, MI, stroke, and the need for a repeat procedure. They used the universal definition of MI exclusively, and notably, they omitted procedural MI from their clinical event count. The results, published at the same time as the EXCEL 3-year findings, suggested that CABG was better.

Given the discrepant findings of two large trials, the guideline committee considered all of the available data comparing the two methods of revascularization for left main CAD. But even then, things weren’t clear-cut. One draft meta-analysis, supported by the National Institute for Health Research, suggested that results were worse for first- and second-generation drug-eluting coronary stents – including those used in EXCEL – compared with surgery.

Another meta-analysis, later published in The Lancet, drew a different conclusion and found that PCI was just as good as surgery. The main author, Stuart Head, a cardiothoracic surgeon on the ESC/EACTS guideline committee, was a research fellow with EXCEL investigator Dr. Kappetein at Erasmus. EXCEL investigators Dr. Stone, Dr. Kappetein, and Dr. Serruys were coauthors of the Lancet meta-analysis.

There was heated discussion about the committee’s draft recommendations, which gave both CABG and PCI a Class IA recommendation in patients with left main CAD and low anatomical complexity. In October 2017, the ESC commissioned an anonymous external reviewer to weigh in. James Brophy, MD, PhD, a cardiologist and professor of medicine and epidemiology at McGill University, Montreal, confirmed that he was the reviewer after he published an updated version in June 2020.

Looking at all of the data available at the time comparing the procedures for left main CAD, Dr. Brophy’s analysis suggested a 73% chance that the excess in death, stroke, or MI represents at least two excess events per 100 patients treated with PCI rather than CABG.

Dr. Brophy thought that most patients would find these differences clinically meaningful and advised against giving both procedures the same class of recommendation. He was also concerned that many readers will skip to the summary recommendation table without reading the entire guideline document.

“I feel this is misleading in its present form,” he wrote in 2017.

Despite Dr. Brophy’s review, the guideline committee stuck with its original recommendations. The final 2018 ESC/EACTS Guidelines on myocardial revascularization gave equal weight to both CABG and PCI in patients with left main CAD and low anatomical complexity. In contrast, US guidelines do not put PCI and CABG on the same footing for any group of patients with left main CAD.

The lead author of the ESC/EACTS guidelines section on left main disease, and around a third of those on the writing task force, all declared financial payments from stent manufacturers either to themselves or their institutions. The EXCEL principal investigator, Dr. Kappetein, was secretary general of EACTS and oversaw the guidelines process for the surgical organization. He left to work for Medtronic midway through the process and was later joined there by his former research fellow, Stuart Head.

Dr. Brophy said in an interview that given the final guideline recommendations, he assumed that the committee had other reviews and went with the majority opinion.

But not everyone involved in the guidelines saw Dr. Brophy’s review. Nick Freemantle, a statistical reviewer appointed by EACTS, expected to see it but didn’t. This omission calls into question the neutrality of the whole process, in his view.

Mr. Freemantle believes that the deck was stacked so that he only saw the pieces of evidence that supported the conclusions that were already decided and that he was not shown “the bits that don’t fit that neatly.”

“And without that narrative, it all feels a bit grubby, to be honest,” he said.

Professor Barbara Casadei, ESC president, disputed this, saying that the guidelines were approved by all surgical members, including the EACTS council.

Missing from Dr. Brophy’s review were the later data from EXCEL. As he had told the DSMB in 2017, Stone presented the 4-year data from EXCEL at the TCT conference in September 2018. At this point, the analysis showed that 10.3% of people had died after PCI and 7.4% after CABG.

But this presentation was not given much prominence at the conference, which Dr. Stone organized, and occurred during a didactic session in a small room rather than on one of the main stages where the 3-year data from EXCEL were announced with much fanfare. The presentation also took place 3 weeks after the European guidelines were published.
 

Surgeons withdraw support

After the BBC report last year that the universal definition of MI data had been collected but not published in the 3-year follow-up manuscript, and showed more MI in the PCI group than the protocol definition, the EACTS withdrew its support for the guidelines. The ESC continued to uphold the guidelines «until there is robust scientific evidence (as opposed to allegations) indicating we should do otherwise,” said Ms. Casadei.

A spokesperson for NEJM said the journal stood by the EXCEL papers because “there is no credible harm to patients from the publication of the paper and accurate reporting of trial results.” NEJM has since conducted a review and published a series of letters in response. The letters have reinvigorated rather than appeased the dissenters, as reported by Medscape.

A number of cardiologists and researchers started a petition on change.org to revise the EACTS/ESC left main CAD guidelines, and surgical societies across the globe have written to the editor of NEJM asking him to retract or amend the EXCEL papers.

This has not happened. The journal’s editor maintains that the letters containing the analyses are “sufficient information” to allow readers and guideline authors to “evaluate the trial findings.”

Dr. Taggart was dismissive of that response. “There is still no recognition or acknowledgment that failure to publish these data in 2016 ‘misled’ the guideline writers for the ESC/EACTS guidelines, and there is still no formal correction of the 2016 and 2019 NEJM manuscripts.”

Over a year after the BBC received the leaked data, the EXCEL investigators published an analysis of the primary outcome using the universal definition of MI data in the Journal of the American College of Cardiology.

It shows 141 events in the PCI arm, compared with 102 in the CABG arm. The investigators acknowledge that the rates of procedural MI differ depending on the definition used. According to their analysis, the protocol definition was predictive of mortality after both treatments, whereas the universal definition of procedural MI was predictive of mortality only after CABG. Not everyone agrees with this interpretation, and an accompanying editorial questioned these conclusions.

For Dr. Wallentin, it’s a relief that these data are in the public domain so that their interpretation and clinical consequences can be “openly discussed.” He hoped that the whole experience will result in something constructive and useful for the future.

As for the guidelines, the tide may be turning.

In a joint statement with EACTS on Oct. 6, 2020, the ESC agreed to review its guidelines for left main disease in the light of emerging, longer-term outcome data from the trials of CABG versus PCI.

Dr. Taggart has no regrets about speaking out despite this being “an exceedingly painful and bruising experience.”

The saga, he said, “reflects very badly on our specialty, the investigators, industry, and the world’s ‘leading’ medical journal.”

This article first appeared on Medscape.com.

“I disapprove of what you say, but I will defend to the death your right to say it.” The choice of the secretary general of the European Association for Cardio-Thoracic Surgery to open with this quote was the first hint that the next presentation at the 2019 annual meeting would be anything but dull. The session chair followed with a reminder to keep the discussion polite and civil.

Presenter David Taggart, MD, PhD, did not disappoint. The professor of cardiovascular surgery at the University of Oxford (England) began with the announcement that he had withdrawn his name from a recent paper in the New England Journal of Medicine. He then proceeded to accuse his coinvestigators of misrepresenting the findings of a major clinical trial.

Dr. Taggart was chair of the surgical committee for the Abbott-sponsored EXCEL trial, which compared two procedures for patients who had blockages in their left main coronary artery: percutaneous coronary intervention (PCI) using coronary stents, and coronary artery bypass graft surgery (CABG). The investigators designed the trial to compare outcomes for the two treatments using a composite endpoint of death, stroke, and MI. The 3-year follow-up data had been published in NEJM without controversy – or, at least, without public controversy.

But when it came time to publish the 5-year follow-up, there was a significantly higher rate of death in the stent group, and both Dr. Taggart and the journal editors were concerned that this finding was being downplayed in the manuscript.

In their comments to the authors, the journal editors had recommended including the mortality difference (unless clearly trivial) ‘”in the concluding statement in the final paragraph.” Yet, the concluding statement of the published paper read that there “was no significant difference between PCI and CABG.”

In Dr. Taggart’s view, that claim was dangerous for patients, and so he was left with no choice but to remove himself as an author, a first for the academic with over 300 scientific papers to his name.

Earlier publications from the EXCEL trial had influenced European treatment guidelines. But subsequent allegations of misconduct and hidden data spurred the EACTS to repudiate those guidelines out of concern “that some results in the EXCEL trial appear to have been concealed and that some patients may therefore have received the wrong clinical advice.”

The controversy pitted cardiothoracic surgeons against interventional cardiologists, who were seen as increasingly encroaching on the surgeons’ turf. Dr. Taggart was a long-time critic of the subspecialty.

Surgeons demanded an independent analysis of the EXCEL trial data – a demand that the investigators have yet to satisfy. Dr. Taggart was the first to speak publicly, but others had major reservations about the trial reporting and conduct years earlier.
 

Mortality data held back

One such person was Lars Wallentin, MD, a professor of cardiology at Uppsala (Sweden) University Hospital, who chaired the independent committee that monitored the safety and scientific validity of the EXCEL trial.

The committee, known as the data and safety monitoring board (DSMB), received a report on March 23, 2016, that showed that increasingly more patients who had received stents were dying, compared with the group of patients that had undergone CABG. A graph of the survival curves showed the gap between the two groups widening after 3 years (Figure 1).

By September of that year, Dr. Wallentin and other members of the DSMB were anxious to share the concerning mortality difference with the broader medical community.

They were aware that EACTS and the European Society of Cardiology had started the process of updating their guidelines on myocardial revascularization, and were keen for the guideline writing committee to see all of the data.

Meanwhile, the trial investigators, led by principal investigator Gregg Stone, MD, then at New York–Presbyterian Hospital and Columbia University Medical Center, were preparing to publish a report of the 3-year outcomes. Recruitment for EXCEL started in September 2010, so at the time of the 3-year analysis in 2016, some patients had been followed up for over 5 years. But the data, published in NEJM in October 2016, were capped at 3 years (Figure 2). It didn’t show the widening gap in late mortality that Dr. Wallentin and the rest of the DSMB had seen.

When asked about this, the investigators said they were transparent about their plans to cap the data at 3 years in an amendment to the study protocol. Stone’s coprincipal investigators were interventional cardiologist Patrick Serruys, MD, then of Imperial College London; and two surgeons: Joseph Sabik, MD, then of the Cleveland Clinic Foundation, and A. Pieter Kappetein, MD, PhD, then at Erasmus Medical Center, Rotterdam. The four principal investigators all declared financial payments from stent manufacturers either to themselves or their institutions.

Study sponsor Abbott has distanced itself from the decisions made and has referred all questions about the trial to the EXCEL investigators. Charles Simonton, chief medical officer at Abbott (now at Abiomed) was a coauthor on both the 3- and 5-year papers. Dr. Wallentin believes that the sponsor must have been aware of the DSMB’s concerns.
 

Continuing DSMB concerns

A year later, the DSMB was still troubled. Dr. Wallentin emailed Dr. Stone in September 2017 asking for an updated analysis of the mortality data without any capping in time.

Dr. Wallentin added that he didn’t think that unblinding the mortality results would be an issue at that stage because these were late deaths in a trial where the interventions were long completed. But, he warned, “it might be very concerning if, in the future, suspicions were raised that already available information on mortality was withheld from the cardiology and thoracic surgery community.”

The investigators took a month to respond. They declined the request, saying that the trial was not statistically powered to measure mortality. In his email to Dr. Wallentin, Dr. Stone stressed that they were committed to complete disclosure of all of the EXCEL data and that the responsible time point to unblind was after 4 years. His coprincipal investigators (Dr. Serruys, Dr. Sabik, and Dr. Kappetein) as well as EXCEL statistical committee chair Stuart Pocock, PhD, and Mr. Simonton were all copied on the email.

Dr. Wallentin deferred to the principal investigators’ arguments.
 

Missing MI data

Death was not the only outcome of the EXCEL trial to draw scrutiny.

The EXCEL investigators used a unique definition of MI that was almost exclusively based on a rise in the cardiac biomarker CK-MB. This protocol definition of MI was later adapted into the Society for Cardiovascular Angiography and Interventions definition in a paper coauthored by Dr. Stone. The investigators agreed to also measure MIs that met the more commonly used Third Universal Definition as a secondary endpoint. The Third Universal Definition of Myocardial Infarction uses a change in biomarkers – preferably troponin or alternatively CK-MB – coupled with other clinical signs.

It is standard practice to report secondary endpoints in any analysis of the main findings of a study. Yet, the EXCEL investigators did not report the universal definition of MI in either the 3-year or 5-year publications.

This is critical because MI according to one definition may not count according to the other, and the final tally could tip the trial results positive, negative, or neutral for coronary stents.

In Dr. Taggart’s opinion, the protocol definition puts CABG at a disadvantage because it uses the same biomarker threshold for procedural-related MI for both PCI and CABG. Because surgery involves more manipulation of the heart, cardiac enzyme levels will naturally be higher after CABG than PCI. These procedure-related enzyme elevations are not “true clinical MIs,” according to Dr. Taggart and others.

Late last year, a dataset containing the 3-year follow-up of EXCEL, including the information on the universal definition of MI, was leaked to the BBC. Working with biostatisticians, the BBC confirmed that according to this definition, there were more MIs in the stent group.

Originally, the investigators disputed the finding, calling the BBC data “imaginary.” They claimed that they were unable to calculate a rate of MI according to the universal definition because they lacked routine collection of troponins, although the universal definition also allows use of CK-MB. They have since published an analysis of 5-year MI data according to the universal definition, which showed twice the rate of MI in the PCI group.

From the leaked data, the BBC calculated the main composite endpoint of death, stroke, and MI using the universal definition of MI. Now the results swung in favor of CABG.
 

Impact on guidelines

None of this was known at the time the European cardiology societies convened a committee to write their new guidelines on myocardial revascularization. The writing panel disagreed about whether PCI and CABG were equivalent for patients with left main coronary artery disease (CAD).

Besides EXCEL, another study, the NOBLE trial, compared PCI and CABG in left main CAD and came to opposite conclusions – conclusions that matched the leaked data. In that trial, European investigators chose a slightly different primary endpoint: a composite of death, MI, stroke, and the need for a repeat procedure. They used the universal definition of MI exclusively, and notably, they omitted procedural MI from their clinical event count. The results, published at the same time as the EXCEL 3-year findings, suggested that CABG was better.

Given the discrepant findings of two large trials, the guideline committee considered all of the available data comparing the two methods of revascularization for left main CAD. But even then, things weren’t clear-cut. One draft meta-analysis, supported by the National Institute for Health Research, suggested that results were worse for first- and second-generation drug-eluting coronary stents – including those used in EXCEL – compared with surgery.

Another meta-analysis, later published in The Lancet, drew a different conclusion and found that PCI was just as good as surgery. The main author, Stuart Head, a cardiothoracic surgeon on the ESC/EACTS guideline committee, was a research fellow with EXCEL investigator Dr. Kappetein at Erasmus. EXCEL investigators Dr. Stone, Dr. Kappetein, and Dr. Serruys were coauthors of the Lancet meta-analysis.

There was heated discussion about the committee’s draft recommendations, which gave both CABG and PCI a Class IA recommendation in patients with left main CAD and low anatomical complexity. In October 2017, the ESC commissioned an anonymous external reviewer to weigh in. James Brophy, MD, PhD, a cardiologist and professor of medicine and epidemiology at McGill University, Montreal, confirmed that he was the reviewer after he published an updated version in June 2020.

Looking at all of the data available at the time comparing the procedures for left main CAD, Dr. Brophy’s analysis suggested a 73% chance that the excess in death, stroke, or MI represents at least two excess events per 100 patients treated with PCI rather than CABG.

Dr. Brophy thought that most patients would find these differences clinically meaningful and advised against giving both procedures the same class of recommendation. He was also concerned that many readers will skip to the summary recommendation table without reading the entire guideline document.

“I feel this is misleading in its present form,” he wrote in 2017.

Despite Dr. Brophy’s review, the guideline committee stuck with its original recommendations. The final 2018 ESC/EACTS Guidelines on myocardial revascularization gave equal weight to both CABG and PCI in patients with left main CAD and low anatomical complexity. In contrast, US guidelines do not put PCI and CABG on the same footing for any group of patients with left main CAD.

The lead author of the ESC/EACTS guidelines section on left main disease, and around a third of those on the writing task force, all declared financial payments from stent manufacturers either to themselves or their institutions. The EXCEL principal investigator, Dr. Kappetein, was secretary general of EACTS and oversaw the guidelines process for the surgical organization. He left to work for Medtronic midway through the process and was later joined there by his former research fellow, Stuart Head.

Dr. Brophy said in an interview that given the final guideline recommendations, he assumed that the committee had other reviews and went with the majority opinion.

But not everyone involved in the guidelines saw Dr. Brophy’s review. Nick Freemantle, a statistical reviewer appointed by EACTS, expected to see it but didn’t. This omission calls into question the neutrality of the whole process, in his view.

Mr. Freemantle believes that the deck was stacked so that he only saw the pieces of evidence that supported the conclusions that were already decided and that he was not shown “the bits that don’t fit that neatly.”

“And without that narrative, it all feels a bit grubby, to be honest,” he said.

Professor Barbara Casadei, ESC president, disputed this, saying that the guidelines were approved by all surgical members, including the EACTS council.

Missing from Dr. Brophy’s review were the later data from EXCEL. As he had told the DSMB in 2017, Stone presented the 4-year data from EXCEL at the TCT conference in September 2018. At this point, the analysis showed that 10.3% of people had died after PCI and 7.4% after CABG.

But this presentation was not given much prominence at the conference, which Dr. Stone organized, and occurred during a didactic session in a small room rather than on one of the main stages where the 3-year data from EXCEL were announced with much fanfare. The presentation also took place 3 weeks after the European guidelines were published.
 

Surgeons withdraw support

After the BBC report last year that the universal definition of MI data had been collected but not published in the 3-year follow-up manuscript, and showed more MI in the PCI group than the protocol definition, the EACTS withdrew its support for the guidelines. The ESC continued to uphold the guidelines «until there is robust scientific evidence (as opposed to allegations) indicating we should do otherwise,” said Ms. Casadei.

A spokesperson for NEJM said the journal stood by the EXCEL papers because “there is no credible harm to patients from the publication of the paper and accurate reporting of trial results.” NEJM has since conducted a review and published a series of letters in response. The letters have reinvigorated rather than appeased the dissenters, as reported by Medscape.

A number of cardiologists and researchers started a petition on change.org to revise the EACTS/ESC left main CAD guidelines, and surgical societies across the globe have written to the editor of NEJM asking him to retract or amend the EXCEL papers.

This has not happened. The journal’s editor maintains that the letters containing the analyses are “sufficient information” to allow readers and guideline authors to “evaluate the trial findings.”

Dr. Taggart was dismissive of that response. “There is still no recognition or acknowledgment that failure to publish these data in 2016 ‘misled’ the guideline writers for the ESC/EACTS guidelines, and there is still no formal correction of the 2016 and 2019 NEJM manuscripts.”

Over a year after the BBC received the leaked data, the EXCEL investigators published an analysis of the primary outcome using the universal definition of MI data in the Journal of the American College of Cardiology.

It shows 141 events in the PCI arm, compared with 102 in the CABG arm. The investigators acknowledge that the rates of procedural MI differ depending on the definition used. According to their analysis, the protocol definition was predictive of mortality after both treatments, whereas the universal definition of procedural MI was predictive of mortality only after CABG. Not everyone agrees with this interpretation, and an accompanying editorial questioned these conclusions.

For Dr. Wallentin, it’s a relief that these data are in the public domain so that their interpretation and clinical consequences can be “openly discussed.” He hoped that the whole experience will result in something constructive and useful for the future.

As for the guidelines, the tide may be turning.

In a joint statement with EACTS on Oct. 6, 2020, the ESC agreed to review its guidelines for left main disease in the light of emerging, longer-term outcome data from the trials of CABG versus PCI.

Dr. Taggart has no regrets about speaking out despite this being “an exceedingly painful and bruising experience.”

The saga, he said, “reflects very badly on our specialty, the investigators, industry, and the world’s ‘leading’ medical journal.”

This article first appeared on Medscape.com.

For patients with diabetic kidney disease, finerenone, an agent from a new class of selective, nonsteroidal mineralocorticoid receptor antagonists, led to significant reductions in combined adverse renal outcomes and in combined adverse cardiovascular outcomes in the pivotal FIDELIO-DKD trial.

And the safety results showed a good level of tolerability. The rate of hyperkalemia was higher with finerenone than with placebo, but the rate of drug discontinuations for elevated potassium was lower than that seen with spironolactone, a steroidal mineralocorticoid receptor antagonist (MRA).

“An ideal drug would cause no hyperkalemia, but the absolute risk we saw is a fraction of what we see with spironolactone in this vulnerable patient population,” said Rajiv Agarwal, MD, from Indiana in Indianapolis, during a press briefing.

After a median follow-up of 2.6 years, finerenone was associated with a 3.4% absolute reduction in the rate of combined adverse renal events, the study’s primary end point, which comprised kidney failure, renal death, and a drop in estimated glomerular filtration rate (eGFR) of at least 40% from baseline. This produced a significant relative risk reduction of 18%, with a number needed to treat of 32 to prevent one of these events, Dr. Agarwal reported at Kidney Week 2020. Findings from the FIDELIO-DKD trial were published simultaneously in the New England Journal of Medicine.

Finerenone was also associated with an absolute 2.4% reduction in the rate of combined adverse cardiovascular events, the study’s “key secondary end point,” which included cardiovascular death, nonfatal MI, nonfatal stroke, and hospitalization for heart failure. This translated into a significant relative risk reduction of 14% and a number needed to treat of 42 to prevent one of these events.

FIDELIO-DKD assessed 5,734 patients with type 2 diabetes and chronic kidney disease from more than 1,000 sites in 48 countries, including the United States, from 2015 to 2018. In the study cohort, average age was slightly more than 65 years, average baseline systolic blood pressure was 138 mm Hg, average duration of diabetes was nearly 17 years, average baseline glycated hemoglobin (A1c) was 7.7%, and fewer than 5% of patients were Black, 25% were Asian, and about 63% were White.
 

A suggestion of less severe hyperkalemia

Finerenone was well tolerated by the participants, and the findings suggest that it caused less clinically meaningful hyperkalemia than spironolactone, the most established and widely used MRA.

Like all MRA drugs, finerenone led to an increase in serum potassium in all patient subgroups – in this case 0.2 mmol/L – unlike placebo, said Dr. Agarwal.

The overall incidence of hyperkalemia was 16% in the 2,827 evaluable patients in the finerenone group and 8% in the 2,831 evaluable patients in the placebo group. Fewer than 10% of patients in the trial received a potassium-binding agent.

The rate of hyperkalemia leading to treatment discontinuation was higher in the finerenone group than in the placebo group (2.3% vs. 0.9%).

That 2.3% rate is 10 times lower than the 23.0% rate of hyperkalemia-related treatment discontinuation in patients who received spironolactone and no potassium-binding agent, said Dr. Agarwal, citing a previous study he was involved with.

He hypothesized that finerenone might cause less clinically meaningful hyperkalemia because it creates no active metabolites that linger in the body, whereas spironolactone produces active metabolites with a half life of about 1 week.

“The risk for hyperkalemia is clearly increased with finerenone compared with placebo, and in the absence of head-to-head studies, it’s hard to know how it compares with spironolactone or eplerenone [Inspra],” the other agents in the MRA class, said Mikhail N. Kosiborod, MD, from the University of Missouri–Kansas City.

“The rates of hyperkalemia observed in FIDELIO-DKD were overall comparable to what we would expect from eplerenone. But the rate of serious hyperkalemia was quite low with finerenone, which is reassuring,” Dr. Kosiborod said in an interview.

And the adverse-effect profile showed that finerenone “is as safe as you could expect from an MRA,” said Janani Rangaswami, MD, from the Einstein Medical Center in Philadelphia.

The rate of hyperkalemia should be interpreted in the context of the high risk the enrolled patients faced, given that they all had moderate to severe diabetic kidney disease with albuminuria and, in some cases, eGFR rates as low as 25 mL/min per 1.73m², she explained. In addition, all patients were on maximally tolerated treatment with either an angiotensin-converting–enzyme inhibitor or an angiotensin receptor blocker to inhibit the renin angiotensin system (RAS).

“Considering this background, it’s a very acceptable adverse-event profile,” Dr. Rangaswami said in an interview.
 

Renal drugs that could work together

More than 99% of patients in FIDELIO-DKD were on an RAS inhibitor, but fewer than 5% were on a sodium glucose cotransporter 2 (SGLT2) inhibitor at baseline, and fewer than 10% started on this drug class during the course of the study.

Despite that, both Dr. Kosiborod and Dr. Rangaswami are enthusiastic about the prospect of using the three drugs in combination to maximize renal and cardiovascular benefits in FIDELIO-DKD–type patients. Recent results from the CREDENCE study of canagliflozin (Invokana) and from the DAPA-CKD study of dapagluflozin (Farxiga) have established SGLT2 inhibitors – at least those two – as key agents for patients with chronic kidney disease.

Dual treatment with an RAS inhibitor and an SGLT2 inhibitor is “clearly established” for patients with diabetic kidney disease, said Dr. Agarwal.

“After CREDENCE, DAPA-CKD, and now FIDELIO-DKD, we need to seriously consider triple therapy as the future of treatment for diabetic kidney disease to prevent both cardiovascular and kidney complications,” said Dr. Kosiborod. The approach will mimic the multidrug therapy that’s now standard for patients with heart failure with reduced ejection fraction (HFrEF). But he cautioned that this triple combination needs further testing.

“Triple therapy will be the standard of care” for patients with diabetic kidney disease, Dr. Rangaswami agreed, but she cautioned that she would not currently expand the target population for finerenone to patients without type 2 diabetes or to patients without the level of albuminuria required for entry into FIDELIO-DKD: at least 30 mg/g of creatinine per day. And patients with HFrEF were excluded from FIDELIO-DKD, so that limitation on finerenone use should remain for the time being, she added.

Dr. Rangaswami said she is optimistic about the potential efficacy of finerenone added to an SGLT2 inhibitor because of the likelihood that the two drug classes work in different but complementary ways. SGLT2 inhibitors seem to exert their renal protective effects largely through hemodynamic effects, whereas it is likely that finerenone exerts its effects largely as an anti-inflammatory and antifibrotic agent, she speculated. The FIDELIO-DKD results appear to rule out any major effect of finerenone on blood pressure lowering because average systolic pressure fell by only about 2 mm Hg in the treatment group.

“The benefits of finerenone for cardiorenal outcomes are substantial and clinically meaningful,” Dr. Kosiborod said. “We cannot assume that other MRAs, such as spironolactone, provide similar benefits,” he cautioned, but the results are “very good news for patients with type 2 diabetes and chronic kidney disease. We now have another effective intervention with a different mechanism of action.”

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone (BAY 94-8862). Dr. Agarwal has been a consultant to and has received honoraria from Bayer and from several other companies. Dr. Kosiborod has been a consultant to Bayer and to AstraZeneca, Boehringer Ingelheim, Jansse, Merck, and Vifor and has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Rangaswami has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

For patients with diabetic kidney disease, finerenone, an agent from a new class of selective, nonsteroidal mineralocorticoid receptor antagonists, led to significant reductions in combined adverse renal outcomes and in combined adverse cardiovascular outcomes in the pivotal FIDELIO-DKD trial.

And the safety results showed a good level of tolerability. The rate of hyperkalemia was higher with finerenone than with placebo, but the rate of drug discontinuations for elevated potassium was lower than that seen with spironolactone, a steroidal mineralocorticoid receptor antagonist (MRA).

“An ideal drug would cause no hyperkalemia, but the absolute risk we saw is a fraction of what we see with spironolactone in this vulnerable patient population,” said Rajiv Agarwal, MD, from Indiana in Indianapolis, during a press briefing.

After a median follow-up of 2.6 years, finerenone was associated with a 3.4% absolute reduction in the rate of combined adverse renal events, the study’s primary end point, which comprised kidney failure, renal death, and a drop in estimated glomerular filtration rate (eGFR) of at least 40% from baseline. This produced a significant relative risk reduction of 18%, with a number needed to treat of 32 to prevent one of these events, Dr. Agarwal reported at Kidney Week 2020. Findings from the FIDELIO-DKD trial were published simultaneously in the New England Journal of Medicine.

Finerenone was also associated with an absolute 2.4% reduction in the rate of combined adverse cardiovascular events, the study’s “key secondary end point,” which included cardiovascular death, nonfatal MI, nonfatal stroke, and hospitalization for heart failure. This translated into a significant relative risk reduction of 14% and a number needed to treat of 42 to prevent one of these events.

FIDELIO-DKD assessed 5,734 patients with type 2 diabetes and chronic kidney disease from more than 1,000 sites in 48 countries, including the United States, from 2015 to 2018. In the study cohort, average age was slightly more than 65 years, average baseline systolic blood pressure was 138 mm Hg, average duration of diabetes was nearly 17 years, average baseline glycated hemoglobin (A1c) was 7.7%, and fewer than 5% of patients were Black, 25% were Asian, and about 63% were White.
 

A suggestion of less severe hyperkalemia

Finerenone was well tolerated by the participants, and the findings suggest that it caused less clinically meaningful hyperkalemia than spironolactone, the most established and widely used MRA.

Like all MRA drugs, finerenone led to an increase in serum potassium in all patient subgroups – in this case 0.2 mmol/L – unlike placebo, said Dr. Agarwal.

The overall incidence of hyperkalemia was 16% in the 2,827 evaluable patients in the finerenone group and 8% in the 2,831 evaluable patients in the placebo group. Fewer than 10% of patients in the trial received a potassium-binding agent.

The rate of hyperkalemia leading to treatment discontinuation was higher in the finerenone group than in the placebo group (2.3% vs. 0.9%).

That 2.3% rate is 10 times lower than the 23.0% rate of hyperkalemia-related treatment discontinuation in patients who received spironolactone and no potassium-binding agent, said Dr. Agarwal, citing a previous study he was involved with.

He hypothesized that finerenone might cause less clinically meaningful hyperkalemia because it creates no active metabolites that linger in the body, whereas spironolactone produces active metabolites with a half life of about 1 week.

“The risk for hyperkalemia is clearly increased with finerenone compared with placebo, and in the absence of head-to-head studies, it’s hard to know how it compares with spironolactone or eplerenone [Inspra],” the other agents in the MRA class, said Mikhail N. Kosiborod, MD, from the University of Missouri–Kansas City.

“The rates of hyperkalemia observed in FIDELIO-DKD were overall comparable to what we would expect from eplerenone. But the rate of serious hyperkalemia was quite low with finerenone, which is reassuring,” Dr. Kosiborod said in an interview.

And the adverse-effect profile showed that finerenone “is as safe as you could expect from an MRA,” said Janani Rangaswami, MD, from the Einstein Medical Center in Philadelphia.

The rate of hyperkalemia should be interpreted in the context of the high risk the enrolled patients faced, given that they all had moderate to severe diabetic kidney disease with albuminuria and, in some cases, eGFR rates as low as 25 mL/min per 1.73m², she explained. In addition, all patients were on maximally tolerated treatment with either an angiotensin-converting–enzyme inhibitor or an angiotensin receptor blocker to inhibit the renin angiotensin system (RAS).

“Considering this background, it’s a very acceptable adverse-event profile,” Dr. Rangaswami said in an interview.
 

Renal drugs that could work together

More than 99% of patients in FIDELIO-DKD were on an RAS inhibitor, but fewer than 5% were on a sodium glucose cotransporter 2 (SGLT2) inhibitor at baseline, and fewer than 10% started on this drug class during the course of the study.

Despite that, both Dr. Kosiborod and Dr. Rangaswami are enthusiastic about the prospect of using the three drugs in combination to maximize renal and cardiovascular benefits in FIDELIO-DKD–type patients. Recent results from the CREDENCE study of canagliflozin (Invokana) and from the DAPA-CKD study of dapagluflozin (Farxiga) have established SGLT2 inhibitors – at least those two – as key agents for patients with chronic kidney disease.

Dual treatment with an RAS inhibitor and an SGLT2 inhibitor is “clearly established” for patients with diabetic kidney disease, said Dr. Agarwal.

“After CREDENCE, DAPA-CKD, and now FIDELIO-DKD, we need to seriously consider triple therapy as the future of treatment for diabetic kidney disease to prevent both cardiovascular and kidney complications,” said Dr. Kosiborod. The approach will mimic the multidrug therapy that’s now standard for patients with heart failure with reduced ejection fraction (HFrEF). But he cautioned that this triple combination needs further testing.

“Triple therapy will be the standard of care” for patients with diabetic kidney disease, Dr. Rangaswami agreed, but she cautioned that she would not currently expand the target population for finerenone to patients without type 2 diabetes or to patients without the level of albuminuria required for entry into FIDELIO-DKD: at least 30 mg/g of creatinine per day. And patients with HFrEF were excluded from FIDELIO-DKD, so that limitation on finerenone use should remain for the time being, she added.

Dr. Rangaswami said she is optimistic about the potential efficacy of finerenone added to an SGLT2 inhibitor because of the likelihood that the two drug classes work in different but complementary ways. SGLT2 inhibitors seem to exert their renal protective effects largely through hemodynamic effects, whereas it is likely that finerenone exerts its effects largely as an anti-inflammatory and antifibrotic agent, she speculated. The FIDELIO-DKD results appear to rule out any major effect of finerenone on blood pressure lowering because average systolic pressure fell by only about 2 mm Hg in the treatment group.

“The benefits of finerenone for cardiorenal outcomes are substantial and clinically meaningful,” Dr. Kosiborod said. “We cannot assume that other MRAs, such as spironolactone, provide similar benefits,” he cautioned, but the results are “very good news for patients with type 2 diabetes and chronic kidney disease. We now have another effective intervention with a different mechanism of action.”

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone (BAY 94-8862). Dr. Agarwal has been a consultant to and has received honoraria from Bayer and from several other companies. Dr. Kosiborod has been a consultant to Bayer and to AstraZeneca, Boehringer Ingelheim, Jansse, Merck, and Vifor and has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Rangaswami has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

For patients with diabetic kidney disease, finerenone, an agent from a new class of selective, nonsteroidal mineralocorticoid receptor antagonists, led to significant reductions in combined adverse renal outcomes and in combined adverse cardiovascular outcomes in the pivotal FIDELIO-DKD trial.

And the safety results showed a good level of tolerability. The rate of hyperkalemia was higher with finerenone than with placebo, but the rate of drug discontinuations for elevated potassium was lower than that seen with spironolactone, a steroidal mineralocorticoid receptor antagonist (MRA).

“An ideal drug would cause no hyperkalemia, but the absolute risk we saw is a fraction of what we see with spironolactone in this vulnerable patient population,” said Rajiv Agarwal, MD, from Indiana in Indianapolis, during a press briefing.

After a median follow-up of 2.6 years, finerenone was associated with a 3.4% absolute reduction in the rate of combined adverse renal events, the study’s primary end point, which comprised kidney failure, renal death, and a drop in estimated glomerular filtration rate (eGFR) of at least 40% from baseline. This produced a significant relative risk reduction of 18%, with a number needed to treat of 32 to prevent one of these events, Dr. Agarwal reported at Kidney Week 2020. Findings from the FIDELIO-DKD trial were published simultaneously in the New England Journal of Medicine.

Finerenone was also associated with an absolute 2.4% reduction in the rate of combined adverse cardiovascular events, the study’s “key secondary end point,” which included cardiovascular death, nonfatal MI, nonfatal stroke, and hospitalization for heart failure. This translated into a significant relative risk reduction of 14% and a number needed to treat of 42 to prevent one of these events.

FIDELIO-DKD assessed 5,734 patients with type 2 diabetes and chronic kidney disease from more than 1,000 sites in 48 countries, including the United States, from 2015 to 2018. In the study cohort, average age was slightly more than 65 years, average baseline systolic blood pressure was 138 mm Hg, average duration of diabetes was nearly 17 years, average baseline glycated hemoglobin (A1c) was 7.7%, and fewer than 5% of patients were Black, 25% were Asian, and about 63% were White.
 

A suggestion of less severe hyperkalemia

Finerenone was well tolerated by the participants, and the findings suggest that it caused less clinically meaningful hyperkalemia than spironolactone, the most established and widely used MRA.

Like all MRA drugs, finerenone led to an increase in serum potassium in all patient subgroups – in this case 0.2 mmol/L – unlike placebo, said Dr. Agarwal.

The overall incidence of hyperkalemia was 16% in the 2,827 evaluable patients in the finerenone group and 8% in the 2,831 evaluable patients in the placebo group. Fewer than 10% of patients in the trial received a potassium-binding agent.

The rate of hyperkalemia leading to treatment discontinuation was higher in the finerenone group than in the placebo group (2.3% vs. 0.9%).

That 2.3% rate is 10 times lower than the 23.0% rate of hyperkalemia-related treatment discontinuation in patients who received spironolactone and no potassium-binding agent, said Dr. Agarwal, citing a previous study he was involved with.

He hypothesized that finerenone might cause less clinically meaningful hyperkalemia because it creates no active metabolites that linger in the body, whereas spironolactone produces active metabolites with a half life of about 1 week.

“The risk for hyperkalemia is clearly increased with finerenone compared with placebo, and in the absence of head-to-head studies, it’s hard to know how it compares with spironolactone or eplerenone [Inspra],” the other agents in the MRA class, said Mikhail N. Kosiborod, MD, from the University of Missouri–Kansas City.

“The rates of hyperkalemia observed in FIDELIO-DKD were overall comparable to what we would expect from eplerenone. But the rate of serious hyperkalemia was quite low with finerenone, which is reassuring,” Dr. Kosiborod said in an interview.

And the adverse-effect profile showed that finerenone “is as safe as you could expect from an MRA,” said Janani Rangaswami, MD, from the Einstein Medical Center in Philadelphia.

The rate of hyperkalemia should be interpreted in the context of the high risk the enrolled patients faced, given that they all had moderate to severe diabetic kidney disease with albuminuria and, in some cases, eGFR rates as low as 25 mL/min per 1.73m², she explained. In addition, all patients were on maximally tolerated treatment with either an angiotensin-converting–enzyme inhibitor or an angiotensin receptor blocker to inhibit the renin angiotensin system (RAS).

“Considering this background, it’s a very acceptable adverse-event profile,” Dr. Rangaswami said in an interview.
 

Renal drugs that could work together

More than 99% of patients in FIDELIO-DKD were on an RAS inhibitor, but fewer than 5% were on a sodium glucose cotransporter 2 (SGLT2) inhibitor at baseline, and fewer than 10% started on this drug class during the course of the study.

Despite that, both Dr. Kosiborod and Dr. Rangaswami are enthusiastic about the prospect of using the three drugs in combination to maximize renal and cardiovascular benefits in FIDELIO-DKD–type patients. Recent results from the CREDENCE study of canagliflozin (Invokana) and from the DAPA-CKD study of dapagluflozin (Farxiga) have established SGLT2 inhibitors – at least those two – as key agents for patients with chronic kidney disease.

Dual treatment with an RAS inhibitor and an SGLT2 inhibitor is “clearly established” for patients with diabetic kidney disease, said Dr. Agarwal.

“After CREDENCE, DAPA-CKD, and now FIDELIO-DKD, we need to seriously consider triple therapy as the future of treatment for diabetic kidney disease to prevent both cardiovascular and kidney complications,” said Dr. Kosiborod. The approach will mimic the multidrug therapy that’s now standard for patients with heart failure with reduced ejection fraction (HFrEF). But he cautioned that this triple combination needs further testing.

“Triple therapy will be the standard of care” for patients with diabetic kidney disease, Dr. Rangaswami agreed, but she cautioned that she would not currently expand the target population for finerenone to patients without type 2 diabetes or to patients without the level of albuminuria required for entry into FIDELIO-DKD: at least 30 mg/g of creatinine per day. And patients with HFrEF were excluded from FIDELIO-DKD, so that limitation on finerenone use should remain for the time being, she added.

Dr. Rangaswami said she is optimistic about the potential efficacy of finerenone added to an SGLT2 inhibitor because of the likelihood that the two drug classes work in different but complementary ways. SGLT2 inhibitors seem to exert their renal protective effects largely through hemodynamic effects, whereas it is likely that finerenone exerts its effects largely as an anti-inflammatory and antifibrotic agent, she speculated. The FIDELIO-DKD results appear to rule out any major effect of finerenone on blood pressure lowering because average systolic pressure fell by only about 2 mm Hg in the treatment group.

“The benefits of finerenone for cardiorenal outcomes are substantial and clinically meaningful,” Dr. Kosiborod said. “We cannot assume that other MRAs, such as spironolactone, provide similar benefits,” he cautioned, but the results are “very good news for patients with type 2 diabetes and chronic kidney disease. We now have another effective intervention with a different mechanism of action.”

FIDELIO-DKD was sponsored by Bayer, the company developing finerenone (BAY 94-8862). Dr. Agarwal has been a consultant to and has received honoraria from Bayer and from several other companies. Dr. Kosiborod has been a consultant to Bayer and to AstraZeneca, Boehringer Ingelheim, Jansse, Merck, and Vifor and has received research funding from AstraZeneca and Boehringer Ingelheim. Dr. Rangaswami has disclosed no relevant financial relationships.
 

A version of this article originally appeared on Medscape.com.

Regular consumption of foods rich in omega-3 fatty acids was associated with improved prognosis after ST-segment myocardial infarction (STEMI) in a new observational study.

Dmitriy Danilchenko/Shutterstock

The prospective study, which involved 944 patients with STEMI who underwent primary percutaneous coronary intervention (PCI), showed that plasma levels of fatty acids at the time of the STEMI were inversely associated with both incident major adverse cardiovascular events (MACE) and cardiovascular readmissions (adjusted hazard ratio, 0.76 and 0.74 for 1-SD increase; for both, P < .05).

No association was seen for the endpoint of all-cause mortality.

“What we showed is that your consumption of fish and other sources of omega-3 fatty acids before the heart attack impacts your prognosis after the heart attack. It’s a novel approach because it’s not primary prevention or secondary prevention,” said Aleix Sala-Vila, PharmD, PhD, from the Institut Hospital del Mar d’Investigacions Mèdiques (IMIM) in Barcelona, Spain.

Sala-Vila, co–senior author Antoni Bayés-Genís, MD, PhD, Heart Universitari Germans Trias I Pujol, Barcelona, and first author Iolanda Lázaro, PhD, also from IMIM, reported their findings online Oct. 26 in the Journal of the American College of Cardiology.

It has been established that dietary omega-3 eicosapentaenoic acid (EPA) has cardioprotective properties, but observational studies and randomized trials of EPA intake have yielded disparate findings.

This study avoided the usual traps of nutritional epidemiology research – self-reported food diaries and intake questionnaires. For this study, the researchers measured tissue levels of EPA and alpha-linolenic acid (ALA) by measuring serum phosphatidylcholine (PC) levels, which reflect dietary intake during the previous 3 or 4 weeks.

This technique, said Sala-Vila, not only provides a more reliable measure of fatty acid intake over time but also avoids measurement errors related to fatty acid content variation.

For example, “The EPA content of a piece of fish eaten in January could be very different from one eaten in June,” explained Sala-Vila.

That said, he acknowledged that this technique, which uses gas chromatography, does not at present have a clear clinical application. “It’s quite difficult just to convert levels of serum-PC EPA into consumption of fatty fish. We feel that the best advice at this point is that given by the American Heart Association to eat two servings of fatty fish a week.”
 

EPA and ALA: Partners in prevention?

In addition to the findings regarding EPA, the researchers also found that serum-PC ALA was inversely related to all-cause mortality after STEMI (HR, 0.65 for 1-SD increase; P < .05).

A trend was seen for an association between ALA and lower risk for incident MACE (P = .093).

ALA is readily available from inexpensive plant sources (eg, chia seeds, flax seeds, walnuts, soy beans) and has been associated with lower all-cause mortality in high-risk individuals.

This omega-3 fatty acid is often given short shrift in the fatty acid world because of the seven-step enzymatic process needed to convert it into more beneficial forms.

“We know that the conversion of ALA to EPA or DHA [docohexaenoic acid] is marginal, but we decided to include it in the study because we feel that this fatty acid is becoming more important because there are some issues with fish consumption – people are concerned about pollutants and sustainability, and some just don’t like it,” explained Sala-Vila.

“We were shocked to see that the marine-derived and vegetable-derived fatty acids don’t appear to compete, but rather they act synergistically,” said Sala-Villa. The researchers suggested that marine and vegetable omega-3 fatty acids may act as “partners in prevention.”

“We are not metabolically adapted to converting ALA to EPA, but despite this, there is a large body of evidence showing that one way to increase the status of EPA and DHA in our membranes is by eating these sources of fatty acids,” said Sala-Vila.

For almost 20 years, Sala-Vila has been studying how the consumption of foods rich in omega-3 affects disease. Two of his current projects involve studying levels of ALA in red blood cell membranes as a risk factor for ischemic stroke and omega-3 status in individuals with cognitive impairment who are at high risk for Alzheimer’s disease.
 

Applicable to all patients with atherosclerosis

In comments to theheart.org | Medscape Cardiology, Deepak Bhatt, MD, called the study “terrific,” adding that the effort is “as good as it gets” for observational nutrition research.

“I think one has to view these findings in the larger universe of what is really a revolution in omega-3 fatty acid research,” said Bhatt.

This universe, he said, includes a wealth of observational research showing the benefits of omega-3s, two outcome trials – JELIS and REDUCE-IT – that showed the benefits of EPA supplementation, and two imaging studies – EVAPORATE and CHERRY – that showed favorable effects of EPA on the vasculature.

REDUCE-IT, for which Bhatt served as principal investigator, showed that treatment with icosapent ethyl (Vascepa), a high-dose purified form of EPA, led to a 25% relative risk reduction in MACE in an at-risk Western population.

The results, said Bhatt, who co-wrote an editorial that accompanies the current Sala-Vila article, “likely apply to all patients with atherosclerosis or who are at high risk for it” and supports the practice of counseling patients to increase their intake of food rich in omega-3 fatty acids.

The field may be due for a shake-up, he noted. At next month’s American Heart Association meeting, the results of another trial of another prescription-grade EPA/DHA supplement will be presented, and they are expected to be negative.

AstraZeneca announced in January 2020 the early closure of the STRENGTH trial of Epanova after an interim analysis showed a low likelihood of their product demonstrating benefit in the enrolled population.

Epanova is a fish-oil derived mixture of free fatty acids, primarily EPA and DHA. It is approved in the United States and is indicated as an adjunct to diet to reduce triglyceride levels in adults with severe (≥500 mg/dL) hypertriglyceridemia. This indication is not affected by the data from the STRENGTH trial, according to a company press release.

Sala-Vila has received grants and support from the California Walnut Commission, including a grant to support part of this study. Bayés-Genís and Bhatt have relationships with a number of companies.
 

This article first appeared on Medscape.com.

Regular consumption of foods rich in omega-3 fatty acids was associated with improved prognosis after ST-segment myocardial infarction (STEMI) in a new observational study.

Dmitriy Danilchenko/Shutterstock

The prospective study, which involved 944 patients with STEMI who underwent primary percutaneous coronary intervention (PCI), showed that plasma levels of fatty acids at the time of the STEMI were inversely associated with both incident major adverse cardiovascular events (MACE) and cardiovascular readmissions (adjusted hazard ratio, 0.76 and 0.74 for 1-SD increase; for both, P < .05).

No association was seen for the endpoint of all-cause mortality.

“What we showed is that your consumption of fish and other sources of omega-3 fatty acids before the heart attack impacts your prognosis after the heart attack. It’s a novel approach because it’s not primary prevention or secondary prevention,” said Aleix Sala-Vila, PharmD, PhD, from the Institut Hospital del Mar d’Investigacions Mèdiques (IMIM) in Barcelona, Spain.

Sala-Vila, co–senior author Antoni Bayés-Genís, MD, PhD, Heart Universitari Germans Trias I Pujol, Barcelona, and first author Iolanda Lázaro, PhD, also from IMIM, reported their findings online Oct. 26 in the Journal of the American College of Cardiology.

It has been established that dietary omega-3 eicosapentaenoic acid (EPA) has cardioprotective properties, but observational studies and randomized trials of EPA intake have yielded disparate findings.

This study avoided the usual traps of nutritional epidemiology research – self-reported food diaries and intake questionnaires. For this study, the researchers measured tissue levels of EPA and alpha-linolenic acid (ALA) by measuring serum phosphatidylcholine (PC) levels, which reflect dietary intake during the previous 3 or 4 weeks.

This technique, said Sala-Vila, not only provides a more reliable measure of fatty acid intake over time but also avoids measurement errors related to fatty acid content variation.

For example, “The EPA content of a piece of fish eaten in January could be very different from one eaten in June,” explained Sala-Vila.

That said, he acknowledged that this technique, which uses gas chromatography, does not at present have a clear clinical application. “It’s quite difficult just to convert levels of serum-PC EPA into consumption of fatty fish. We feel that the best advice at this point is that given by the American Heart Association to eat two servings of fatty fish a week.”
 

EPA and ALA: Partners in prevention?

In addition to the findings regarding EPA, the researchers also found that serum-PC ALA was inversely related to all-cause mortality after STEMI (HR, 0.65 for 1-SD increase; P < .05).

A trend was seen for an association between ALA and lower risk for incident MACE (P = .093).

ALA is readily available from inexpensive plant sources (eg, chia seeds, flax seeds, walnuts, soy beans) and has been associated with lower all-cause mortality in high-risk individuals.

This omega-3 fatty acid is often given short shrift in the fatty acid world because of the seven-step enzymatic process needed to convert it into more beneficial forms.

“We know that the conversion of ALA to EPA or DHA [docohexaenoic acid] is marginal, but we decided to include it in the study because we feel that this fatty acid is becoming more important because there are some issues with fish consumption – people are concerned about pollutants and sustainability, and some just don’t like it,” explained Sala-Vila.

“We were shocked to see that the marine-derived and vegetable-derived fatty acids don’t appear to compete, but rather they act synergistically,” said Sala-Villa. The researchers suggested that marine and vegetable omega-3 fatty acids may act as “partners in prevention.”

“We are not metabolically adapted to converting ALA to EPA, but despite this, there is a large body of evidence showing that one way to increase the status of EPA and DHA in our membranes is by eating these sources of fatty acids,” said Sala-Vila.

For almost 20 years, Sala-Vila has been studying how the consumption of foods rich in omega-3 affects disease. Two of his current projects involve studying levels of ALA in red blood cell membranes as a risk factor for ischemic stroke and omega-3 status in individuals with cognitive impairment who are at high risk for Alzheimer’s disease.
 

Applicable to all patients with atherosclerosis

In comments to theheart.org | Medscape Cardiology, Deepak Bhatt, MD, called the study “terrific,” adding that the effort is “as good as it gets” for observational nutrition research.

“I think one has to view these findings in the larger universe of what is really a revolution in omega-3 fatty acid research,” said Bhatt.

This universe, he said, includes a wealth of observational research showing the benefits of omega-3s, two outcome trials – JELIS and REDUCE-IT – that showed the benefits of EPA supplementation, and two imaging studies – EVAPORATE and CHERRY – that showed favorable effects of EPA on the vasculature.

REDUCE-IT, for which Bhatt served as principal investigator, showed that treatment with icosapent ethyl (Vascepa), a high-dose purified form of EPA, led to a 25% relative risk reduction in MACE in an at-risk Western population.

The results, said Bhatt, who co-wrote an editorial that accompanies the current Sala-Vila article, “likely apply to all patients with atherosclerosis or who are at high risk for it” and supports the practice of counseling patients to increase their intake of food rich in omega-3 fatty acids.

The field may be due for a shake-up, he noted. At next month’s American Heart Association meeting, the results of another trial of another prescription-grade EPA/DHA supplement will be presented, and they are expected to be negative.

AstraZeneca announced in January 2020 the early closure of the STRENGTH trial of Epanova after an interim analysis showed a low likelihood of their product demonstrating benefit in the enrolled population.

Epanova is a fish-oil derived mixture of free fatty acids, primarily EPA and DHA. It is approved in the United States and is indicated as an adjunct to diet to reduce triglyceride levels in adults with severe (≥500 mg/dL) hypertriglyceridemia. This indication is not affected by the data from the STRENGTH trial, according to a company press release.

Sala-Vila has received grants and support from the California Walnut Commission, including a grant to support part of this study. Bayés-Genís and Bhatt have relationships with a number of companies.
 

This article first appeared on Medscape.com.

Regular consumption of foods rich in omega-3 fatty acids was associated with improved prognosis after ST-segment myocardial infarction (STEMI) in a new observational study.

Dmitriy Danilchenko/Shutterstock

The prospective study, which involved 944 patients with STEMI who underwent primary percutaneous coronary intervention (PCI), showed that plasma levels of fatty acids at the time of the STEMI were inversely associated with both incident major adverse cardiovascular events (MACE) and cardiovascular readmissions (adjusted hazard ratio, 0.76 and 0.74 for 1-SD increase; for both, P < .05).

No association was seen for the endpoint of all-cause mortality.

“What we showed is that your consumption of fish and other sources of omega-3 fatty acids before the heart attack impacts your prognosis after the heart attack. It’s a novel approach because it’s not primary prevention or secondary prevention,” said Aleix Sala-Vila, PharmD, PhD, from the Institut Hospital del Mar d’Investigacions Mèdiques (IMIM) in Barcelona, Spain.

Sala-Vila, co–senior author Antoni Bayés-Genís, MD, PhD, Heart Universitari Germans Trias I Pujol, Barcelona, and first author Iolanda Lázaro, PhD, also from IMIM, reported their findings online Oct. 26 in the Journal of the American College of Cardiology.

It has been established that dietary omega-3 eicosapentaenoic acid (EPA) has cardioprotective properties, but observational studies and randomized trials of EPA intake have yielded disparate findings.

This study avoided the usual traps of nutritional epidemiology research – self-reported food diaries and intake questionnaires. For this study, the researchers measured tissue levels of EPA and alpha-linolenic acid (ALA) by measuring serum phosphatidylcholine (PC) levels, which reflect dietary intake during the previous 3 or 4 weeks.

This technique, said Sala-Vila, not only provides a more reliable measure of fatty acid intake over time but also avoids measurement errors related to fatty acid content variation.

For example, “The EPA content of a piece of fish eaten in January could be very different from one eaten in June,” explained Sala-Vila.

That said, he acknowledged that this technique, which uses gas chromatography, does not at present have a clear clinical application. “It’s quite difficult just to convert levels of serum-PC EPA into consumption of fatty fish. We feel that the best advice at this point is that given by the American Heart Association to eat two servings of fatty fish a week.”
 

EPA and ALA: Partners in prevention?

In addition to the findings regarding EPA, the researchers also found that serum-PC ALA was inversely related to all-cause mortality after STEMI (HR, 0.65 for 1-SD increase; P < .05).

A trend was seen for an association between ALA and lower risk for incident MACE (P = .093).

ALA is readily available from inexpensive plant sources (eg, chia seeds, flax seeds, walnuts, soy beans) and has been associated with lower all-cause mortality in high-risk individuals.

This omega-3 fatty acid is often given short shrift in the fatty acid world because of the seven-step enzymatic process needed to convert it into more beneficial forms.

“We know that the conversion of ALA to EPA or DHA [docohexaenoic acid] is marginal, but we decided to include it in the study because we feel that this fatty acid is becoming more important because there are some issues with fish consumption – people are concerned about pollutants and sustainability, and some just don’t like it,” explained Sala-Vila.

“We were shocked to see that the marine-derived and vegetable-derived fatty acids don’t appear to compete, but rather they act synergistically,” said Sala-Villa. The researchers suggested that marine and vegetable omega-3 fatty acids may act as “partners in prevention.”

“We are not metabolically adapted to converting ALA to EPA, but despite this, there is a large body of evidence showing that one way to increase the status of EPA and DHA in our membranes is by eating these sources of fatty acids,” said Sala-Vila.

For almost 20 years, Sala-Vila has been studying how the consumption of foods rich in omega-3 affects disease. Two of his current projects involve studying levels of ALA in red blood cell membranes as a risk factor for ischemic stroke and omega-3 status in individuals with cognitive impairment who are at high risk for Alzheimer’s disease.
 

Applicable to all patients with atherosclerosis

In comments to theheart.org | Medscape Cardiology, Deepak Bhatt, MD, called the study “terrific,” adding that the effort is “as good as it gets” for observational nutrition research.

“I think one has to view these findings in the larger universe of what is really a revolution in omega-3 fatty acid research,” said Bhatt.

This universe, he said, includes a wealth of observational research showing the benefits of omega-3s, two outcome trials – JELIS and REDUCE-IT – that showed the benefits of EPA supplementation, and two imaging studies – EVAPORATE and CHERRY – that showed favorable effects of EPA on the vasculature.

REDUCE-IT, for which Bhatt served as principal investigator, showed that treatment with icosapent ethyl (Vascepa), a high-dose purified form of EPA, led to a 25% relative risk reduction in MACE in an at-risk Western population.

The results, said Bhatt, who co-wrote an editorial that accompanies the current Sala-Vila article, “likely apply to all patients with atherosclerosis or who are at high risk for it” and supports the practice of counseling patients to increase their intake of food rich in omega-3 fatty acids.

The field may be due for a shake-up, he noted. At next month’s American Heart Association meeting, the results of another trial of another prescription-grade EPA/DHA supplement will be presented, and they are expected to be negative.

AstraZeneca announced in January 2020 the early closure of the STRENGTH trial of Epanova after an interim analysis showed a low likelihood of their product demonstrating benefit in the enrolled population.

Epanova is a fish-oil derived mixture of free fatty acids, primarily EPA and DHA. It is approved in the United States and is indicated as an adjunct to diet to reduce triglyceride levels in adults with severe (≥500 mg/dL) hypertriglyceridemia. This indication is not affected by the data from the STRENGTH trial, according to a company press release.

Sala-Vila has received grants and support from the California Walnut Commission, including a grant to support part of this study. Bayés-Genís and Bhatt have relationships with a number of companies.
 

This article first appeared on Medscape.com.