Cardiology News

Over 10% of transgender men (females transitioning to male) who take testosterone develop high hematocrit levels that could put them at greater risk for a thrombotic event, and the largest increase in levels occurs in the first year after starting therapy, a new Dutch study indicates.

Erythrocytosis, defined as a hematocrit greater than 0.50 L/L, is a potentially serious side effect of testosterone therapy, say Milou Cecilia Madsen, MD, and colleagues in their article published online Feb. 18, 2021, in the Journal of Clinical Endocrinology & Metabolism.

When hematocrit was measured twice, 11.1% of the cohort of 1073 trans men had levels in excess of 0.50 L/L over a 20-year follow-up.

“Erythrocytosis is common in transgender men treated with testosterone, especially in those who smoke, have [a] high BMI [body mass index], and [who] use testosterone injections,” Dr. Madsen, of the VU University Medical Center Amsterdam, said in a statement from the Endocrine Society.

“A reasonable first step in the care of transgender men with high red blood cells while on testosterone is to advise them to quit smoking, switch injectable testosterone to gel, and, if BMI is high, to lose weight,” she added.
 

First large study of testosterone in trans men with 20-year follow-up

Transgender men often undergo testosterone therapy as part of gender-affirming treatment. 

Secondary erythrocytosis, a condition where the body makes too many red blood cells, is a common side effect of testosterone therapy that can increase the risk of thrombolic events, heart attack, and stroke, Dr. Madsen and colleagues explained.

This is the first study of a large cohort of trans men taking testosterone therapy followed for up to 20 years. Because of the large sample size, statistical analysis with many determinants could be performed. And because of the long follow-up, a clear time relation between initiation of testosterone therapy and hematocrit could be studied, they noted.

Participants were part of the Amsterdam Cohort of Gender Dysphoria study, a large cohort of individuals seen at the Center of Expertise on Gender Dysphoria at Amsterdam University Medical Center between 1972 and 2015.

Laboratory measurements taken between 2004 and 2018 were available for analysis. Trans men visited the center every 3-6 months during their first year of testosterone therapy and were then monitored every year or every other year.

Long-acting undecanoate injection was associated with the highest risk of a hematocrit level greater than 0.50 L/L, and the risk of erythrocytosis in those who took long-acting intramuscular injections was about threefold higher, compared with testosterone gel (adjusted odds ratio, 3.1).

In contrast, short-acting ester injections and oral administration of testosterone had a similar risk for erythrocytosis, as did testosterone gel.

Other determinants of elevated hematocrit included smoking, medical history of a number of comorbid conditions, and older age on initiation of testosterone.

In contrast, “higher testosterone levels per se were not associated with an increased odds of hematocrit greater than 0.50 L/L”, the authors noted.
 

Current advice for trans men based on old guidance for hypogonadism

The authors said that current advice for trans men is based on recommendations for testosterone-treated hypogonadal cis men (those assigned male at birth) from 2008, which advises a hematocrit greater than 0.50 L/L has a moderate to high risk of adverse outcome. For levels greater than 0.54 L/L, cessation of testosterone therapy, a dose reduction, or therapeutic phlebotomy to reduce the risk of adverse events is advised. For levels 0.50-0.54 L/L, no clear advice is given.

But questions remain as to whether these guidelines are applicable to trans men because the duration of testosterone therapy is much longer in trans men and hormone treatment often cannot be discontinued without causing distress.

Meanwhile, hematology guidelines indicate an upper limit for hematocrit for cis females of 0.48 L/L.

“It could be argued that the upper limit for cis females should be applied, as trans men are born with female genetics,” the authors said. “This is a subject for further research.”
 

Duration of testosterone therapy impacts risk of erythrocytosis

In the study, the researchers found that longer duration of testosterone therapy increased the risk of developing hematocrit levels greater than 0.50 L/L. For example, after 1 year, the cumulative incidence of erythrocytosis was 8%; after 10 years, it was 38%; and after 14 years, it was 50%.

Until more specific guidance is developed for trans men, if hematocrit levels rise to 0.50-0.54 L/L, the researchers suggested taking “reasonable” steps to prevent a further increase:

• Consider switching patients who use injectable testosterone to transdermal products.
• Advise patients with a BMI greater than 25 kg/m2 to lose weight to attain a BMI of 18.5-25.
• Advise patients to stop smoking.
• Pursue treatment optimization for chronic lung disease or sleep apnea.

The study had no external funding. The authors reported no relevant financial relationships.

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

Over 10% of transgender men (females transitioning to male) who take testosterone develop high hematocrit levels that could put them at greater risk for a thrombotic event, and the largest increase in levels occurs in the first year after starting therapy, a new Dutch study indicates.

Erythrocytosis, defined as a hematocrit greater than 0.50 L/L, is a potentially serious side effect of testosterone therapy, say Milou Cecilia Madsen, MD, and colleagues in their article published online Feb. 18, 2021, in the Journal of Clinical Endocrinology & Metabolism.

When hematocrit was measured twice, 11.1% of the cohort of 1073 trans men had levels in excess of 0.50 L/L over a 20-year follow-up.

“Erythrocytosis is common in transgender men treated with testosterone, especially in those who smoke, have [a] high BMI [body mass index], and [who] use testosterone injections,” Dr. Madsen, of the VU University Medical Center Amsterdam, said in a statement from the Endocrine Society.

“A reasonable first step in the care of transgender men with high red blood cells while on testosterone is to advise them to quit smoking, switch injectable testosterone to gel, and, if BMI is high, to lose weight,” she added.
 

First large study of testosterone in trans men with 20-year follow-up

Transgender men often undergo testosterone therapy as part of gender-affirming treatment. 

Secondary erythrocytosis, a condition where the body makes too many red blood cells, is a common side effect of testosterone therapy that can increase the risk of thrombolic events, heart attack, and stroke, Dr. Madsen and colleagues explained.

This is the first study of a large cohort of trans men taking testosterone therapy followed for up to 20 years. Because of the large sample size, statistical analysis with many determinants could be performed. And because of the long follow-up, a clear time relation between initiation of testosterone therapy and hematocrit could be studied, they noted.

Participants were part of the Amsterdam Cohort of Gender Dysphoria study, a large cohort of individuals seen at the Center of Expertise on Gender Dysphoria at Amsterdam University Medical Center between 1972 and 2015.

Laboratory measurements taken between 2004 and 2018 were available for analysis. Trans men visited the center every 3-6 months during their first year of testosterone therapy and were then monitored every year or every other year.

Long-acting undecanoate injection was associated with the highest risk of a hematocrit level greater than 0.50 L/L, and the risk of erythrocytosis in those who took long-acting intramuscular injections was about threefold higher, compared with testosterone gel (adjusted odds ratio, 3.1).

In contrast, short-acting ester injections and oral administration of testosterone had a similar risk for erythrocytosis, as did testosterone gel.

Other determinants of elevated hematocrit included smoking, medical history of a number of comorbid conditions, and older age on initiation of testosterone.

In contrast, “higher testosterone levels per se were not associated with an increased odds of hematocrit greater than 0.50 L/L”, the authors noted.
 

Current advice for trans men based on old guidance for hypogonadism

The authors said that current advice for trans men is based on recommendations for testosterone-treated hypogonadal cis men (those assigned male at birth) from 2008, which advises a hematocrit greater than 0.50 L/L has a moderate to high risk of adverse outcome. For levels greater than 0.54 L/L, cessation of testosterone therapy, a dose reduction, or therapeutic phlebotomy to reduce the risk of adverse events is advised. For levels 0.50-0.54 L/L, no clear advice is given.

But questions remain as to whether these guidelines are applicable to trans men because the duration of testosterone therapy is much longer in trans men and hormone treatment often cannot be discontinued without causing distress.

Meanwhile, hematology guidelines indicate an upper limit for hematocrit for cis females of 0.48 L/L.

“It could be argued that the upper limit for cis females should be applied, as trans men are born with female genetics,” the authors said. “This is a subject for further research.”
 

Duration of testosterone therapy impacts risk of erythrocytosis

In the study, the researchers found that longer duration of testosterone therapy increased the risk of developing hematocrit levels greater than 0.50 L/L. For example, after 1 year, the cumulative incidence of erythrocytosis was 8%; after 10 years, it was 38%; and after 14 years, it was 50%.

Until more specific guidance is developed for trans men, if hematocrit levels rise to 0.50-0.54 L/L, the researchers suggested taking “reasonable” steps to prevent a further increase:

• Consider switching patients who use injectable testosterone to transdermal products.
• Advise patients with a BMI greater than 25 kg/m2 to lose weight to attain a BMI of 18.5-25.
• Advise patients to stop smoking.
• Pursue treatment optimization for chronic lung disease or sleep apnea.

The study had no external funding. The authors reported no relevant financial relationships.

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

Over 10% of transgender men (females transitioning to male) who take testosterone develop high hematocrit levels that could put them at greater risk for a thrombotic event, and the largest increase in levels occurs in the first year after starting therapy, a new Dutch study indicates.

Erythrocytosis, defined as a hematocrit greater than 0.50 L/L, is a potentially serious side effect of testosterone therapy, say Milou Cecilia Madsen, MD, and colleagues in their article published online Feb. 18, 2021, in the Journal of Clinical Endocrinology & Metabolism.

When hematocrit was measured twice, 11.1% of the cohort of 1073 trans men had levels in excess of 0.50 L/L over a 20-year follow-up.

“Erythrocytosis is common in transgender men treated with testosterone, especially in those who smoke, have [a] high BMI [body mass index], and [who] use testosterone injections,” Dr. Madsen, of the VU University Medical Center Amsterdam, said in a statement from the Endocrine Society.

“A reasonable first step in the care of transgender men with high red blood cells while on testosterone is to advise them to quit smoking, switch injectable testosterone to gel, and, if BMI is high, to lose weight,” she added.
 

First large study of testosterone in trans men with 20-year follow-up

Transgender men often undergo testosterone therapy as part of gender-affirming treatment. 

Secondary erythrocytosis, a condition where the body makes too many red blood cells, is a common side effect of testosterone therapy that can increase the risk of thrombolic events, heart attack, and stroke, Dr. Madsen and colleagues explained.

This is the first study of a large cohort of trans men taking testosterone therapy followed for up to 20 years. Because of the large sample size, statistical analysis with many determinants could be performed. And because of the long follow-up, a clear time relation between initiation of testosterone therapy and hematocrit could be studied, they noted.

Participants were part of the Amsterdam Cohort of Gender Dysphoria study, a large cohort of individuals seen at the Center of Expertise on Gender Dysphoria at Amsterdam University Medical Center between 1972 and 2015.

Laboratory measurements taken between 2004 and 2018 were available for analysis. Trans men visited the center every 3-6 months during their first year of testosterone therapy and were then monitored every year or every other year.

Long-acting undecanoate injection was associated with the highest risk of a hematocrit level greater than 0.50 L/L, and the risk of erythrocytosis in those who took long-acting intramuscular injections was about threefold higher, compared with testosterone gel (adjusted odds ratio, 3.1).

In contrast, short-acting ester injections and oral administration of testosterone had a similar risk for erythrocytosis, as did testosterone gel.

Other determinants of elevated hematocrit included smoking, medical history of a number of comorbid conditions, and older age on initiation of testosterone.

In contrast, “higher testosterone levels per se were not associated with an increased odds of hematocrit greater than 0.50 L/L”, the authors noted.
 

Current advice for trans men based on old guidance for hypogonadism

The authors said that current advice for trans men is based on recommendations for testosterone-treated hypogonadal cis men (those assigned male at birth) from 2008, which advises a hematocrit greater than 0.50 L/L has a moderate to high risk of adverse outcome. For levels greater than 0.54 L/L, cessation of testosterone therapy, a dose reduction, or therapeutic phlebotomy to reduce the risk of adverse events is advised. For levels 0.50-0.54 L/L, no clear advice is given.

But questions remain as to whether these guidelines are applicable to trans men because the duration of testosterone therapy is much longer in trans men and hormone treatment often cannot be discontinued without causing distress.

Meanwhile, hematology guidelines indicate an upper limit for hematocrit for cis females of 0.48 L/L.

“It could be argued that the upper limit for cis females should be applied, as trans men are born with female genetics,” the authors said. “This is a subject for further research.”
 

Duration of testosterone therapy impacts risk of erythrocytosis

In the study, the researchers found that longer duration of testosterone therapy increased the risk of developing hematocrit levels greater than 0.50 L/L. For example, after 1 year, the cumulative incidence of erythrocytosis was 8%; after 10 years, it was 38%; and after 14 years, it was 50%.

Until more specific guidance is developed for trans men, if hematocrit levels rise to 0.50-0.54 L/L, the researchers suggested taking “reasonable” steps to prevent a further increase:

• Consider switching patients who use injectable testosterone to transdermal products.
• Advise patients with a BMI greater than 25 kg/m2 to lose weight to attain a BMI of 18.5-25.
• Advise patients to stop smoking.
• Pursue treatment optimization for chronic lung disease or sleep apnea.

The study had no external funding. The authors reported no relevant financial relationships.

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

Dapagliflozin’s benefits in patients with heart failure with reduced ejection fraction appeared quickly after treatment began, and patients who had been hospitalized for heart failure within the prior year got the biggest boost from the drug, according to secondary analyses of the more than 4,700-patient DAPA-HF trial.

Dapagliflozin’s significant reduction of the incidence of cardiovascular death or worsening heart failure became apparent in DAPA-HF within 28 days after patients started treatment, by which time those on the study drug had a 49% cut in this combined endpoint, compared with patients on placebo, David D. Berg, MD, and associates said in a recent report published in JAMA Cardiology.

Their analyses also showed that the absolute reduction linked with dapagliflozin treatment for this primary endpoint of the study (which classified worsening heart failure as either hospitalization for heart failure or an urgent visit because of heart failure that required intravenous therapy) was greatest, 10% during 2 years of follow-up, among the roughly one-quarter of enrolled patients who had been hospitalized for heart failure within 12 months of entering the study. Patients previously hospitalized for heart failure more than 12 months before they entered DAPA-HF had a 4% absolute cut in their primary-outcome events during the trial, and those who had never been hospitalized for heart failure had a 2% absolute benefit, compared with placebo, during 2 years of follow-up.

These findings were consistent with the timing of benefits for patients with heart failure with reduced ejection fraction (HFrEF) in recent studies of two other drugs from the same class, the sodium-glucose cotransporter (SGLT) inhibitors, including empagliflozin (Jardiance, which inhibits SGLT-2) in the EMPEROR-Reduced trial, and sotagliflozin (Zynquista, which inhibits both SGLT1 and -2) in the SOLOIST-WHF trial, noted Gregg C. Fonarow, MD, and Clyde W. Yancy, MD, in an editor’s note that accompanied the new report.

The new findings show “the opportunity to expeditiously implement this remarkable class of therapy for HFrEF is now compelling and deserves disruptive efforts to ensure comprehensive treatment and the best patient outcomes,” wrote Dr. Fonarow, a professor of medicine at the University of California, Los Angeles, and Dr. Yancy, a professor of medicine at Northwestern University, Chicago.

But despite these new findings, their exact meaning remains unclear in terms of when to start dapagliflozin (or a different drug from the same class), compared with the other drug classes that have proven highly effective in patients with HFrEF, and exactly how long after hospitalization for heart failure dapagliflozin can safely and effectively begin.
 

Data needed on starting an SGLT inhibitor soon after hospitalization in patients without diabetes

“DAPA-HF showed that, in patients with or without diabetes, an SGLT2 inhibitor reduced the risk of cardiovascular death or worsening heart failure in patients with stable HFrEF. SOLOIST-WHF looked strictly at patients with diabetes, and showed that a combined SGLT1 and SGLT2 inhibitor could reduce the risk of cardiovascular death or worsening heart failure in patients with recently decompensated heart failure,” Dr. Berg, a cardiologist at Brigham and Women’s Hospital in Boston, noted in an interview. “What we don’t have is a trial focused exclusively on enrolling patients while hospitalized with acute heart failure, irrespective of whether they have diabetes, and testing the immediate clinical efficacy and safety of starting an SGLT2 inhibitor. That is what we are testing with the ongoing DAPA ACT HF-TIMI 68 trial.”

In addition, updated recommendations from the American College of Cardiology on initiating drug therapy in patients newly diagnosed with HFrEF that appeared in early 2021 promoted a sequence that starts most patients on sacubitril/valsartan (Entresto) and a beta-blocker, followed by a diuretic (when needed), a mineralocorticoid receptor agonist, and then an SGLT inhibitor. The recommendations note that starting a patient on all these drug classes could take 3-6 months.

“There are intense debates about the optimal sequence for introducing these therapies, and I don’t think we have solid data to suggest that one sequence is clearly better than another,” noted Dr. Berg. “A one-size-fits-all approach probably doesn’t make sense. For example, each of these therapies has a different set of effects on heart rate and blood pressure, and each has a unique side effect profile, so clinicians will often need to tailor the treatment approach to the patient. And, of course, cost is an important consideration. Although the optimal time to start an SGLT2 inhibitor remains uncertain, the results of our analysis suggest that waiting may result in preventable adverse heart failure events.”

DAPA-HF randomized 4,744 patients with HFrEF and in New York Heart Association functional class II-IV at 410 sites in 20 countries. The incidence of the primary, combined endpoint fell by 26% with dapagliflozin treatment, compared with placebo, during a median 18-month follow-up. Among the study cohort 27% of patients had been hospitalized for heart failure within a year of their entry, 20% had been hospitalized for heart failure more than 1 year before entry, and 53% had no history of a hospitalization for heart failure.

DAPA-HF was sponsored by AstraZeneca, the company that markets dapagliflozin (Farxiga). Dr. Berg has received research support through his institution from AstraZeneca. Dr. Fonarow has received personal fees from AstraZeneca and from numerous other companies. Dr. Yancy’s spouse works for Abbott Laboratories.

[email protected]

Dapagliflozin’s benefits in patients with heart failure with reduced ejection fraction appeared quickly after treatment began, and patients who had been hospitalized for heart failure within the prior year got the biggest boost from the drug, according to secondary analyses of the more than 4,700-patient DAPA-HF trial.

Dapagliflozin’s significant reduction of the incidence of cardiovascular death or worsening heart failure became apparent in DAPA-HF within 28 days after patients started treatment, by which time those on the study drug had a 49% cut in this combined endpoint, compared with patients on placebo, David D. Berg, MD, and associates said in a recent report published in JAMA Cardiology.

Their analyses also showed that the absolute reduction linked with dapagliflozin treatment for this primary endpoint of the study (which classified worsening heart failure as either hospitalization for heart failure or an urgent visit because of heart failure that required intravenous therapy) was greatest, 10% during 2 years of follow-up, among the roughly one-quarter of enrolled patients who had been hospitalized for heart failure within 12 months of entering the study. Patients previously hospitalized for heart failure more than 12 months before they entered DAPA-HF had a 4% absolute cut in their primary-outcome events during the trial, and those who had never been hospitalized for heart failure had a 2% absolute benefit, compared with placebo, during 2 years of follow-up.

These findings were consistent with the timing of benefits for patients with heart failure with reduced ejection fraction (HFrEF) in recent studies of two other drugs from the same class, the sodium-glucose cotransporter (SGLT) inhibitors, including empagliflozin (Jardiance, which inhibits SGLT-2) in the EMPEROR-Reduced trial, and sotagliflozin (Zynquista, which inhibits both SGLT1 and -2) in the SOLOIST-WHF trial, noted Gregg C. Fonarow, MD, and Clyde W. Yancy, MD, in an editor’s note that accompanied the new report.

The new findings show “the opportunity to expeditiously implement this remarkable class of therapy for HFrEF is now compelling and deserves disruptive efforts to ensure comprehensive treatment and the best patient outcomes,” wrote Dr. Fonarow, a professor of medicine at the University of California, Los Angeles, and Dr. Yancy, a professor of medicine at Northwestern University, Chicago.

But despite these new findings, their exact meaning remains unclear in terms of when to start dapagliflozin (or a different drug from the same class), compared with the other drug classes that have proven highly effective in patients with HFrEF, and exactly how long after hospitalization for heart failure dapagliflozin can safely and effectively begin.
 

Data needed on starting an SGLT inhibitor soon after hospitalization in patients without diabetes

“DAPA-HF showed that, in patients with or without diabetes, an SGLT2 inhibitor reduced the risk of cardiovascular death or worsening heart failure in patients with stable HFrEF. SOLOIST-WHF looked strictly at patients with diabetes, and showed that a combined SGLT1 and SGLT2 inhibitor could reduce the risk of cardiovascular death or worsening heart failure in patients with recently decompensated heart failure,” Dr. Berg, a cardiologist at Brigham and Women’s Hospital in Boston, noted in an interview. “What we don’t have is a trial focused exclusively on enrolling patients while hospitalized with acute heart failure, irrespective of whether they have diabetes, and testing the immediate clinical efficacy and safety of starting an SGLT2 inhibitor. That is what we are testing with the ongoing DAPA ACT HF-TIMI 68 trial.”

In addition, updated recommendations from the American College of Cardiology on initiating drug therapy in patients newly diagnosed with HFrEF that appeared in early 2021 promoted a sequence that starts most patients on sacubitril/valsartan (Entresto) and a beta-blocker, followed by a diuretic (when needed), a mineralocorticoid receptor agonist, and then an SGLT inhibitor. The recommendations note that starting a patient on all these drug classes could take 3-6 months.

“There are intense debates about the optimal sequence for introducing these therapies, and I don’t think we have solid data to suggest that one sequence is clearly better than another,” noted Dr. Berg. “A one-size-fits-all approach probably doesn’t make sense. For example, each of these therapies has a different set of effects on heart rate and blood pressure, and each has a unique side effect profile, so clinicians will often need to tailor the treatment approach to the patient. And, of course, cost is an important consideration. Although the optimal time to start an SGLT2 inhibitor remains uncertain, the results of our analysis suggest that waiting may result in preventable adverse heart failure events.”

DAPA-HF randomized 4,744 patients with HFrEF and in New York Heart Association functional class II-IV at 410 sites in 20 countries. The incidence of the primary, combined endpoint fell by 26% with dapagliflozin treatment, compared with placebo, during a median 18-month follow-up. Among the study cohort 27% of patients had been hospitalized for heart failure within a year of their entry, 20% had been hospitalized for heart failure more than 1 year before entry, and 53% had no history of a hospitalization for heart failure.

DAPA-HF was sponsored by AstraZeneca, the company that markets dapagliflozin (Farxiga). Dr. Berg has received research support through his institution from AstraZeneca. Dr. Fonarow has received personal fees from AstraZeneca and from numerous other companies. Dr. Yancy’s spouse works for Abbott Laboratories.

[email protected]

Dapagliflozin’s benefits in patients with heart failure with reduced ejection fraction appeared quickly after treatment began, and patients who had been hospitalized for heart failure within the prior year got the biggest boost from the drug, according to secondary analyses of the more than 4,700-patient DAPA-HF trial.

Dapagliflozin’s significant reduction of the incidence of cardiovascular death or worsening heart failure became apparent in DAPA-HF within 28 days after patients started treatment, by which time those on the study drug had a 49% cut in this combined endpoint, compared with patients on placebo, David D. Berg, MD, and associates said in a recent report published in JAMA Cardiology.

Their analyses also showed that the absolute reduction linked with dapagliflozin treatment for this primary endpoint of the study (which classified worsening heart failure as either hospitalization for heart failure or an urgent visit because of heart failure that required intravenous therapy) was greatest, 10% during 2 years of follow-up, among the roughly one-quarter of enrolled patients who had been hospitalized for heart failure within 12 months of entering the study. Patients previously hospitalized for heart failure more than 12 months before they entered DAPA-HF had a 4% absolute cut in their primary-outcome events during the trial, and those who had never been hospitalized for heart failure had a 2% absolute benefit, compared with placebo, during 2 years of follow-up.

These findings were consistent with the timing of benefits for patients with heart failure with reduced ejection fraction (HFrEF) in recent studies of two other drugs from the same class, the sodium-glucose cotransporter (SGLT) inhibitors, including empagliflozin (Jardiance, which inhibits SGLT-2) in the EMPEROR-Reduced trial, and sotagliflozin (Zynquista, which inhibits both SGLT1 and -2) in the SOLOIST-WHF trial, noted Gregg C. Fonarow, MD, and Clyde W. Yancy, MD, in an editor’s note that accompanied the new report.

The new findings show “the opportunity to expeditiously implement this remarkable class of therapy for HFrEF is now compelling and deserves disruptive efforts to ensure comprehensive treatment and the best patient outcomes,” wrote Dr. Fonarow, a professor of medicine at the University of California, Los Angeles, and Dr. Yancy, a professor of medicine at Northwestern University, Chicago.

But despite these new findings, their exact meaning remains unclear in terms of when to start dapagliflozin (or a different drug from the same class), compared with the other drug classes that have proven highly effective in patients with HFrEF, and exactly how long after hospitalization for heart failure dapagliflozin can safely and effectively begin.
 

Data needed on starting an SGLT inhibitor soon after hospitalization in patients without diabetes

“DAPA-HF showed that, in patients with or without diabetes, an SGLT2 inhibitor reduced the risk of cardiovascular death or worsening heart failure in patients with stable HFrEF. SOLOIST-WHF looked strictly at patients with diabetes, and showed that a combined SGLT1 and SGLT2 inhibitor could reduce the risk of cardiovascular death or worsening heart failure in patients with recently decompensated heart failure,” Dr. Berg, a cardiologist at Brigham and Women’s Hospital in Boston, noted in an interview. “What we don’t have is a trial focused exclusively on enrolling patients while hospitalized with acute heart failure, irrespective of whether they have diabetes, and testing the immediate clinical efficacy and safety of starting an SGLT2 inhibitor. That is what we are testing with the ongoing DAPA ACT HF-TIMI 68 trial.”

In addition, updated recommendations from the American College of Cardiology on initiating drug therapy in patients newly diagnosed with HFrEF that appeared in early 2021 promoted a sequence that starts most patients on sacubitril/valsartan (Entresto) and a beta-blocker, followed by a diuretic (when needed), a mineralocorticoid receptor agonist, and then an SGLT inhibitor. The recommendations note that starting a patient on all these drug classes could take 3-6 months.

“There are intense debates about the optimal sequence for introducing these therapies, and I don’t think we have solid data to suggest that one sequence is clearly better than another,” noted Dr. Berg. “A one-size-fits-all approach probably doesn’t make sense. For example, each of these therapies has a different set of effects on heart rate and blood pressure, and each has a unique side effect profile, so clinicians will often need to tailor the treatment approach to the patient. And, of course, cost is an important consideration. Although the optimal time to start an SGLT2 inhibitor remains uncertain, the results of our analysis suggest that waiting may result in preventable adverse heart failure events.”

DAPA-HF randomized 4,744 patients with HFrEF and in New York Heart Association functional class II-IV at 410 sites in 20 countries. The incidence of the primary, combined endpoint fell by 26% with dapagliflozin treatment, compared with placebo, during a median 18-month follow-up. Among the study cohort 27% of patients had been hospitalized for heart failure within a year of their entry, 20% had been hospitalized for heart failure more than 1 year before entry, and 53% had no history of a hospitalization for heart failure.

DAPA-HF was sponsored by AstraZeneca, the company that markets dapagliflozin (Farxiga). Dr. Berg has received research support through his institution from AstraZeneca. Dr. Fonarow has received personal fees from AstraZeneca and from numerous other companies. Dr. Yancy’s spouse works for Abbott Laboratories.

[email protected]

The heart failure drug ivabradine (Corlanor) can provide relief from the elevated heart rate and often debilitating symptoms associated with postural orthostatic tachycardia syndrome (POTS), a new study suggests.

Pheelings Media/Getty Images

Ivabradine significantly lowered standing heart rate, compared with placebo (77.9 vs. 94.2 beats/min; P < .001). The typical surge in heart rate that occurs upon standing in these patients was also blunted, compared with baseline (13.0 vs. 21.4 beats/min; P = .001).

“There are really not a lot of great options for patients with POTS and, mechanistically, ivabradine just make sense because it’s a drug that lowers heart rate very selectively and doesn’t lower blood pressure,” lead study author Pam R. Taub, MD, told this news organization.

Surprisingly, the reduction in heart rate translated into improved physical (P = .008) and social (P = .021) functioning after just 1 month of ivabradine, without any other background POTS medications or a change in nonpharmacologic therapies, she said. “What’s really nice to see is when you tackle a really significant part of the disease, which is the elevated heart rate, just how much better they feel.”

POTS patients are mostly healthy, active young women, who after some inciting event – such as viral infection, trauma, or surgery – experience an increase in heart rate of at least 30 beats/min upon standing accompanied by a range of symptoms, including dizziness, palpitations, brain fog, and fatigue.
 

A COVID connection?

The study enrolled patients with hyperadrenergic POTS as the predominant subtype, but another group to keep in mind that might benefit is the post-COVID POTS patient, said Dr. Taub, from the University of California, San Diego.

“We’re seeing an incredible number of patients post COVID that meet the criteria for POTS, and a lot of these patients also have COVID fatigue,” she said. “So clinically, myself and many other cardiologists who understand ivabradine have been using it off-label for the COVID patients, as long as they meet the criteria. You don’t want to use it in every COVID patient, but if someone’s predominant complaint is that their heart rate is going up when they’re standing and they’re debilitated by it, this is a drug to consider.”

Anecdotal findings in patients with long-hauler COVID need to be translated into rigorous research protocols, but mechanistically, whether it’s POTS from COVID or from another type of infection – like Lyme disease or some other viral syndrome – it should work the same, Dr. Taub said. “POTS is POTS.”

There are no first-line drugs for POTS, and current class IIb recommendations include midodrine, which increases blood pressure and can make people feel awful, and fludrocortisone, which can cause a lot of weight gain and fluid retention, she observed. Other agents that lower heart rate, like beta-blockers, also lower blood pressure and can aggravate depression and fatigue.

Ivabradine regulates heart rate by specifically blocking the Ifunny channel of the sinoatrial node. It was approved in 2015 in the United States to reduce hospitalizations in patients with systolic heart failure, and it also has a second class IIb recommendation for inappropriate sinus tachycardia.

The present study, reported in the Feb. 23 issue of the Journal of the American College of Cardiology, is the first randomized clinical trial using ivabradine to treat POTS.

A total of 26 patients with POTS were started on ivabradine 5 mg or placebo twice daily for 1 month, then were crossed over to the other treatment for 1 month after a 1-week washout period. Six patients were started on a 2.5-mg twice-daily dose. Doses were adjusted during the study based on the patient’s heart rate response and tolerance. Patients had seven clinic visits in which norepinephrine (NE) levels were measured and head-up tilt testing conducted.

Four patients in the ivabradine arm withdrew because of adverse effects, and one withdrew during crossover.

Among the 22 patients who completed the study, exploratory analyses showed a strong trend for greater reduction in plasma NE upon standing with ivabradine (P = .056). The effect was also more profound in patients with very high baseline standing NE levels (at least 1,000 pg/mL) than in those with lower NE levels (600 to 1,000 pg/mL).

“It makes sense because that means their sympathetic nervous system is more overactive; they have a higher heart rate,” Dr. Taub said. “So it’s a potential clinical tool that people can use in their practice to determine, ‘okay, is this a patient I should be considering ivabradine on?’ ”

Although the present study had only 22 patients, “it should definitely be looked at as a step forward, both in terms of ivabradine specifically and in terms of setting the standard for the types of studies we want to see in our patients,” Satish R. Raj, MD, MSCI, University of Calgary (Alta.), said in an interview.

In a related editorial, however, Dr. Raj and coauthor Robert S. Sheldon, MD, PhD, also from the University of Calgary, point out that the standing heart rate in the placebo phase was only 94 beats/min, “suggesting that these patients may be affected only mildly by their POTS.”

Asked about the point, Dr. Taub said: “I don’t know if I agree with that.” She noted that the diagnosis of POTS was confirmed by tilt-table testing and NE levels and that patients’ symptoms vary from day to day. “The standard deviation was plus or minus 16.8, so there’s variability.”

Both Dr. Raj and Dr. Taub said they expect the results will be included in the next scientific statement for POTS, but in the meantime, it may be a struggle to get the drug covered by insurance.  

“The challenge is that this is a very off-label use for this medication, and the medication’s not cheap,” Dr. Raj observed. The price for 60 tablets, which is about a 1-month supply, is $485 on GoodRx.

Another question going forward, he said, is whether ivabradine is superior to beta-blockers, which will be studied in a 20-patient crossover trial sponsored by the University of Calgary that is about to launch. The primary completion date is set for 2024.

The study was supported by a grant from Amgen. Dr. Taub has served as a consultant for Amgen, Bayer, Esperion, Boehringer Ingelheim, Novo Nordisk, and Sanofi; is a shareholder in Epirium Bio; and has received research grants from the National Institutes of Health, the American Heart Association, and the Department of Homeland Security/FEMA. Dr. Raj has received a research grant from the Canadian Institutes of Health Research and research grants from Dysautonomia International to address the pathophysiology of POTS. Dr. Sheldon has received a research grant from Dysautonomia International for a clinical trial assessing ivabradine and propranolol for the treatment of POTS.

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

The heart failure drug ivabradine (Corlanor) can provide relief from the elevated heart rate and often debilitating symptoms associated with postural orthostatic tachycardia syndrome (POTS), a new study suggests.

Pheelings Media/Getty Images

Ivabradine significantly lowered standing heart rate, compared with placebo (77.9 vs. 94.2 beats/min; P < .001). The typical surge in heart rate that occurs upon standing in these patients was also blunted, compared with baseline (13.0 vs. 21.4 beats/min; P = .001).

“There are really not a lot of great options for patients with POTS and, mechanistically, ivabradine just make sense because it’s a drug that lowers heart rate very selectively and doesn’t lower blood pressure,” lead study author Pam R. Taub, MD, told this news organization.

Surprisingly, the reduction in heart rate translated into improved physical (P = .008) and social (P = .021) functioning after just 1 month of ivabradine, without any other background POTS medications or a change in nonpharmacologic therapies, she said. “What’s really nice to see is when you tackle a really significant part of the disease, which is the elevated heart rate, just how much better they feel.”

POTS patients are mostly healthy, active young women, who after some inciting event – such as viral infection, trauma, or surgery – experience an increase in heart rate of at least 30 beats/min upon standing accompanied by a range of symptoms, including dizziness, palpitations, brain fog, and fatigue.
 

A COVID connection?

The study enrolled patients with hyperadrenergic POTS as the predominant subtype, but another group to keep in mind that might benefit is the post-COVID POTS patient, said Dr. Taub, from the University of California, San Diego.

“We’re seeing an incredible number of patients post COVID that meet the criteria for POTS, and a lot of these patients also have COVID fatigue,” she said. “So clinically, myself and many other cardiologists who understand ivabradine have been using it off-label for the COVID patients, as long as they meet the criteria. You don’t want to use it in every COVID patient, but if someone’s predominant complaint is that their heart rate is going up when they’re standing and they’re debilitated by it, this is a drug to consider.”

Anecdotal findings in patients with long-hauler COVID need to be translated into rigorous research protocols, but mechanistically, whether it’s POTS from COVID or from another type of infection – like Lyme disease or some other viral syndrome – it should work the same, Dr. Taub said. “POTS is POTS.”

There are no first-line drugs for POTS, and current class IIb recommendations include midodrine, which increases blood pressure and can make people feel awful, and fludrocortisone, which can cause a lot of weight gain and fluid retention, she observed. Other agents that lower heart rate, like beta-blockers, also lower blood pressure and can aggravate depression and fatigue.

Ivabradine regulates heart rate by specifically blocking the Ifunny channel of the sinoatrial node. It was approved in 2015 in the United States to reduce hospitalizations in patients with systolic heart failure, and it also has a second class IIb recommendation for inappropriate sinus tachycardia.

The present study, reported in the Feb. 23 issue of the Journal of the American College of Cardiology, is the first randomized clinical trial using ivabradine to treat POTS.

A total of 26 patients with POTS were started on ivabradine 5 mg or placebo twice daily for 1 month, then were crossed over to the other treatment for 1 month after a 1-week washout period. Six patients were started on a 2.5-mg twice-daily dose. Doses were adjusted during the study based on the patient’s heart rate response and tolerance. Patients had seven clinic visits in which norepinephrine (NE) levels were measured and head-up tilt testing conducted.

Four patients in the ivabradine arm withdrew because of adverse effects, and one withdrew during crossover.

Among the 22 patients who completed the study, exploratory analyses showed a strong trend for greater reduction in plasma NE upon standing with ivabradine (P = .056). The effect was also more profound in patients with very high baseline standing NE levels (at least 1,000 pg/mL) than in those with lower NE levels (600 to 1,000 pg/mL).

“It makes sense because that means their sympathetic nervous system is more overactive; they have a higher heart rate,” Dr. Taub said. “So it’s a potential clinical tool that people can use in their practice to determine, ‘okay, is this a patient I should be considering ivabradine on?’ ”

Although the present study had only 22 patients, “it should definitely be looked at as a step forward, both in terms of ivabradine specifically and in terms of setting the standard for the types of studies we want to see in our patients,” Satish R. Raj, MD, MSCI, University of Calgary (Alta.), said in an interview.

In a related editorial, however, Dr. Raj and coauthor Robert S. Sheldon, MD, PhD, also from the University of Calgary, point out that the standing heart rate in the placebo phase was only 94 beats/min, “suggesting that these patients may be affected only mildly by their POTS.”

Asked about the point, Dr. Taub said: “I don’t know if I agree with that.” She noted that the diagnosis of POTS was confirmed by tilt-table testing and NE levels and that patients’ symptoms vary from day to day. “The standard deviation was plus or minus 16.8, so there’s variability.”

Both Dr. Raj and Dr. Taub said they expect the results will be included in the next scientific statement for POTS, but in the meantime, it may be a struggle to get the drug covered by insurance.  

“The challenge is that this is a very off-label use for this medication, and the medication’s not cheap,” Dr. Raj observed. The price for 60 tablets, which is about a 1-month supply, is $485 on GoodRx.

Another question going forward, he said, is whether ivabradine is superior to beta-blockers, which will be studied in a 20-patient crossover trial sponsored by the University of Calgary that is about to launch. The primary completion date is set for 2024.

The study was supported by a grant from Amgen. Dr. Taub has served as a consultant for Amgen, Bayer, Esperion, Boehringer Ingelheim, Novo Nordisk, and Sanofi; is a shareholder in Epirium Bio; and has received research grants from the National Institutes of Health, the American Heart Association, and the Department of Homeland Security/FEMA. Dr. Raj has received a research grant from the Canadian Institutes of Health Research and research grants from Dysautonomia International to address the pathophysiology of POTS. Dr. Sheldon has received a research grant from Dysautonomia International for a clinical trial assessing ivabradine and propranolol for the treatment of POTS.

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

The heart failure drug ivabradine (Corlanor) can provide relief from the elevated heart rate and often debilitating symptoms associated with postural orthostatic tachycardia syndrome (POTS), a new study suggests.

Pheelings Media/Getty Images

Ivabradine significantly lowered standing heart rate, compared with placebo (77.9 vs. 94.2 beats/min; P < .001). The typical surge in heart rate that occurs upon standing in these patients was also blunted, compared with baseline (13.0 vs. 21.4 beats/min; P = .001).

“There are really not a lot of great options for patients with POTS and, mechanistically, ivabradine just make sense because it’s a drug that lowers heart rate very selectively and doesn’t lower blood pressure,” lead study author Pam R. Taub, MD, told this news organization.

Surprisingly, the reduction in heart rate translated into improved physical (P = .008) and social (P = .021) functioning after just 1 month of ivabradine, without any other background POTS medications or a change in nonpharmacologic therapies, she said. “What’s really nice to see is when you tackle a really significant part of the disease, which is the elevated heart rate, just how much better they feel.”

POTS patients are mostly healthy, active young women, who after some inciting event – such as viral infection, trauma, or surgery – experience an increase in heart rate of at least 30 beats/min upon standing accompanied by a range of symptoms, including dizziness, palpitations, brain fog, and fatigue.
 

A COVID connection?

The study enrolled patients with hyperadrenergic POTS as the predominant subtype, but another group to keep in mind that might benefit is the post-COVID POTS patient, said Dr. Taub, from the University of California, San Diego.

“We’re seeing an incredible number of patients post COVID that meet the criteria for POTS, and a lot of these patients also have COVID fatigue,” she said. “So clinically, myself and many other cardiologists who understand ivabradine have been using it off-label for the COVID patients, as long as they meet the criteria. You don’t want to use it in every COVID patient, but if someone’s predominant complaint is that their heart rate is going up when they’re standing and they’re debilitated by it, this is a drug to consider.”

Anecdotal findings in patients with long-hauler COVID need to be translated into rigorous research protocols, but mechanistically, whether it’s POTS from COVID or from another type of infection – like Lyme disease or some other viral syndrome – it should work the same, Dr. Taub said. “POTS is POTS.”

There are no first-line drugs for POTS, and current class IIb recommendations include midodrine, which increases blood pressure and can make people feel awful, and fludrocortisone, which can cause a lot of weight gain and fluid retention, she observed. Other agents that lower heart rate, like beta-blockers, also lower blood pressure and can aggravate depression and fatigue.

Ivabradine regulates heart rate by specifically blocking the Ifunny channel of the sinoatrial node. It was approved in 2015 in the United States to reduce hospitalizations in patients with systolic heart failure, and it also has a second class IIb recommendation for inappropriate sinus tachycardia.

The present study, reported in the Feb. 23 issue of the Journal of the American College of Cardiology, is the first randomized clinical trial using ivabradine to treat POTS.

A total of 26 patients with POTS were started on ivabradine 5 mg or placebo twice daily for 1 month, then were crossed over to the other treatment for 1 month after a 1-week washout period. Six patients were started on a 2.5-mg twice-daily dose. Doses were adjusted during the study based on the patient’s heart rate response and tolerance. Patients had seven clinic visits in which norepinephrine (NE) levels were measured and head-up tilt testing conducted.

Four patients in the ivabradine arm withdrew because of adverse effects, and one withdrew during crossover.

Among the 22 patients who completed the study, exploratory analyses showed a strong trend for greater reduction in plasma NE upon standing with ivabradine (P = .056). The effect was also more profound in patients with very high baseline standing NE levels (at least 1,000 pg/mL) than in those with lower NE levels (600 to 1,000 pg/mL).

“It makes sense because that means their sympathetic nervous system is more overactive; they have a higher heart rate,” Dr. Taub said. “So it’s a potential clinical tool that people can use in their practice to determine, ‘okay, is this a patient I should be considering ivabradine on?’ ”

Although the present study had only 22 patients, “it should definitely be looked at as a step forward, both in terms of ivabradine specifically and in terms of setting the standard for the types of studies we want to see in our patients,” Satish R. Raj, MD, MSCI, University of Calgary (Alta.), said in an interview.

In a related editorial, however, Dr. Raj and coauthor Robert S. Sheldon, MD, PhD, also from the University of Calgary, point out that the standing heart rate in the placebo phase was only 94 beats/min, “suggesting that these patients may be affected only mildly by their POTS.”

Asked about the point, Dr. Taub said: “I don’t know if I agree with that.” She noted that the diagnosis of POTS was confirmed by tilt-table testing and NE levels and that patients’ symptoms vary from day to day. “The standard deviation was plus or minus 16.8, so there’s variability.”

Both Dr. Raj and Dr. Taub said they expect the results will be included in the next scientific statement for POTS, but in the meantime, it may be a struggle to get the drug covered by insurance.  

“The challenge is that this is a very off-label use for this medication, and the medication’s not cheap,” Dr. Raj observed. The price for 60 tablets, which is about a 1-month supply, is $485 on GoodRx.

Another question going forward, he said, is whether ivabradine is superior to beta-blockers, which will be studied in a 20-patient crossover trial sponsored by the University of Calgary that is about to launch. The primary completion date is set for 2024.

The study was supported by a grant from Amgen. Dr. Taub has served as a consultant for Amgen, Bayer, Esperion, Boehringer Ingelheim, Novo Nordisk, and Sanofi; is a shareholder in Epirium Bio; and has received research grants from the National Institutes of Health, the American Heart Association, and the Department of Homeland Security/FEMA. Dr. Raj has received a research grant from the Canadian Institutes of Health Research and research grants from Dysautonomia International to address the pathophysiology of POTS. Dr. Sheldon has received a research grant from Dysautonomia International for a clinical trial assessing ivabradine and propranolol for the treatment of POTS.

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

Goldenseal, a natural botanical product, may interfere with intestinal absorption of metformin, potentially compromising blood glucose control in patients with type 2 diabetes, according to investigators.

The study, which tested for interactions between goldenseal and several drugs in healthy volunteers, reveals that current models for predicting transporter-mediated drug-drug interactions may be insufficient to screen commonly used dietary supplements, reported lead investigator James T. Nguyen, PharmD, a PhD candidate at Washington State University, Spokane, and colleagues.

“Supplements containing goldenseal ... a perennial herb native to North America, have consistently ranked among the top 20 highest selling natural products during the last decade,” the investigators wrote in Clinical Pharmacology & Therapeutics . “As more patients continue to seek goldenseal and other natural products to self-treat their medical conditions, there is an increasing need to characterize their safety profiles, especially when co-consumed with prescribed medications, which can lead to adverse natural product-drug interactions.”

Previous clinical studies have shown that goldenseal inhibits cytochrome P450, with one study showing a roughly 40% increase in systemic midazolam exposure via CYP3A inhibition, “suggesting goldenseal could have prolonged inhibitory effects in vivo similar to grapefruit juice,” the investigators wrote.

Clinical and in vitro results for goldenseal-transporter interactions have been mixed, the investigators noted, specifically for P-glycoprotein, while other transporters remain clinically untested.

“Likewise, the effects of [goldenseal alkaloids], all of which are time-dependent inhibitors of CYP3A and/or CYP2D6, have not been tested on transporter function,” the investigators wrote.

To address this knowledge gap, the investigators first performed in vitro transporter inhibition assays and in vitro–in vivo predictions involving goldenseal, plus the alkaloids berberine, (−)-beta-hydrastine, and hydrastinine.

This analysis revealed that a number of transporters were sensitive to inhibition by goldenseal and its alkaloids.

“Using current [Food and Drug Administration]–recommended basic models, the goldenseal product was predicted to inhibit the intestinal efflux transporter BCRP [breast cancer resistance protein] and the hepatic uptake transporters OATP1B1 and OATP1B3,” the investigators wrote, which suggested that goldenseal would increase the area under the plasma concentration-time curve (AUC) of rosuvastatin acid and lactone.

This prediction was clinically tested in 16 healthy volunteers: 8 men and 8 nonpregnant women.

In the baseline portion of the study, each participant received an oral transporter probe cocktail consisting of 10 mg rosuvastatin (OATP1B1/3 and BCRP), 50 mg metformin (OCT1/2 and MATE1/2-K), 1 mg furosemide (OAT1/3), and 2.5 mg midazolam (CYP3A; positive control). Plasma and urine samples were collected before and after the cocktail, with urine collected up to 24 hours later, and plasma collected up to 96 hours later.

Following a minimum 9-day washout period, the same cohort received 1 gram of goldenseal every 8 hours for 5 days. On the day 6, the drug cocktail was given again, followed by two additional doses of goldenseal at 4-hour intervals. At the same time points used in the baseline protocol, urine and plasma samples were collected.

Plasma concentration vs. time profiles revealed that the model-based prediction was false, in that the presence of goldenseal did not alter the pharmacokinetics of rosuvastatin acid and lactone. The investigators suggested that this could be due to incomplete dissolution of goldenseal in the intestinal lumen, and/or low enterocyte concentrations of goldenseal stemming from “low permeability or extensive enterocyte metabolism or efflux.”

In contrast, and unpredicted by the basic model, goldenseal had a significant impact on apical efflux transporters MATE1 and MATE2-K, which mediate renal excretion of metformin. In consequence, AUC from zero to infinity and maximum plasma concentration of metformin were reduced by 23% and 27%, respectively.

“These observations, coupled with no change in half-life, suggested that goldenseal decreased metformin oral bioavailability by altering intestinal permeability, transport, and/or other processes involved in metformin absorption,” the investigators wrote.

According to principal author Mary Paine, PhD, of Washington State University, Spokane, this finding may have clinically significant implications for patients currently taking metformin for type 2 diabetes.

Goldenseal, a natural botanical product, may interfere with intestinal absorption of metformin, potentially compromising blood glucose control in patients with type 2 diabetes, according to investigators.

The study, which tested for interactions between goldenseal and several drugs in healthy volunteers, reveals that current models for predicting transporter-mediated drug-drug interactions may be insufficient to screen commonly used dietary supplements, reported lead investigator James T. Nguyen, PharmD, a PhD candidate at Washington State University, Spokane, and colleagues.

“Supplements containing goldenseal ... a perennial herb native to North America, have consistently ranked among the top 20 highest selling natural products during the last decade,” the investigators wrote in Clinical Pharmacology & Therapeutics . “As more patients continue to seek goldenseal and other natural products to self-treat their medical conditions, there is an increasing need to characterize their safety profiles, especially when co-consumed with prescribed medications, which can lead to adverse natural product-drug interactions.”

Previous clinical studies have shown that goldenseal inhibits cytochrome P450, with one study showing a roughly 40% increase in systemic midazolam exposure via CYP3A inhibition, “suggesting goldenseal could have prolonged inhibitory effects in vivo similar to grapefruit juice,” the investigators wrote.

Clinical and in vitro results for goldenseal-transporter interactions have been mixed, the investigators noted, specifically for P-glycoprotein, while other transporters remain clinically untested.

“Likewise, the effects of [goldenseal alkaloids], all of which are time-dependent inhibitors of CYP3A and/or CYP2D6, have not been tested on transporter function,” the investigators wrote.

To address this knowledge gap, the investigators first performed in vitro transporter inhibition assays and in vitro–in vivo predictions involving goldenseal, plus the alkaloids berberine, (−)-beta-hydrastine, and hydrastinine.

This analysis revealed that a number of transporters were sensitive to inhibition by goldenseal and its alkaloids.

“Using current [Food and Drug Administration]–recommended basic models, the goldenseal product was predicted to inhibit the intestinal efflux transporter BCRP [breast cancer resistance protein] and the hepatic uptake transporters OATP1B1 and OATP1B3,” the investigators wrote, which suggested that goldenseal would increase the area under the plasma concentration-time curve (AUC) of rosuvastatin acid and lactone.

This prediction was clinically tested in 16 healthy volunteers: 8 men and 8 nonpregnant women.

In the baseline portion of the study, each participant received an oral transporter probe cocktail consisting of 10 mg rosuvastatin (OATP1B1/3 and BCRP), 50 mg metformin (OCT1/2 and MATE1/2-K), 1 mg furosemide (OAT1/3), and 2.5 mg midazolam (CYP3A; positive control). Plasma and urine samples were collected before and after the cocktail, with urine collected up to 24 hours later, and plasma collected up to 96 hours later.

Following a minimum 9-day washout period, the same cohort received 1 gram of goldenseal every 8 hours for 5 days. On the day 6, the drug cocktail was given again, followed by two additional doses of goldenseal at 4-hour intervals. At the same time points used in the baseline protocol, urine and plasma samples were collected.

Plasma concentration vs. time profiles revealed that the model-based prediction was false, in that the presence of goldenseal did not alter the pharmacokinetics of rosuvastatin acid and lactone. The investigators suggested that this could be due to incomplete dissolution of goldenseal in the intestinal lumen, and/or low enterocyte concentrations of goldenseal stemming from “low permeability or extensive enterocyte metabolism or efflux.”

In contrast, and unpredicted by the basic model, goldenseal had a significant impact on apical efflux transporters MATE1 and MATE2-K, which mediate renal excretion of metformin. In consequence, AUC from zero to infinity and maximum plasma concentration of metformin were reduced by 23% and 27%, respectively.

“These observations, coupled with no change in half-life, suggested that goldenseal decreased metformin oral bioavailability by altering intestinal permeability, transport, and/or other processes involved in metformin absorption,” the investigators wrote.

According to principal author Mary Paine, PhD, of Washington State University, Spokane, this finding may have clinically significant implications for patients currently taking metformin for type 2 diabetes.

Goldenseal, a natural botanical product, may interfere with intestinal absorption of metformin, potentially compromising blood glucose control in patients with type 2 diabetes, according to investigators.

The study, which tested for interactions between goldenseal and several drugs in healthy volunteers, reveals that current models for predicting transporter-mediated drug-drug interactions may be insufficient to screen commonly used dietary supplements, reported lead investigator James T. Nguyen, PharmD, a PhD candidate at Washington State University, Spokane, and colleagues.

“Supplements containing goldenseal ... a perennial herb native to North America, have consistently ranked among the top 20 highest selling natural products during the last decade,” the investigators wrote in Clinical Pharmacology & Therapeutics . “As more patients continue to seek goldenseal and other natural products to self-treat their medical conditions, there is an increasing need to characterize their safety profiles, especially when co-consumed with prescribed medications, which can lead to adverse natural product-drug interactions.”

Previous clinical studies have shown that goldenseal inhibits cytochrome P450, with one study showing a roughly 40% increase in systemic midazolam exposure via CYP3A inhibition, “suggesting goldenseal could have prolonged inhibitory effects in vivo similar to grapefruit juice,” the investigators wrote.

Clinical and in vitro results for goldenseal-transporter interactions have been mixed, the investigators noted, specifically for P-glycoprotein, while other transporters remain clinically untested.

“Likewise, the effects of [goldenseal alkaloids], all of which are time-dependent inhibitors of CYP3A and/or CYP2D6, have not been tested on transporter function,” the investigators wrote.

To address this knowledge gap, the investigators first performed in vitro transporter inhibition assays and in vitro–in vivo predictions involving goldenseal, plus the alkaloids berberine, (−)-beta-hydrastine, and hydrastinine.

This analysis revealed that a number of transporters were sensitive to inhibition by goldenseal and its alkaloids.

“Using current [Food and Drug Administration]–recommended basic models, the goldenseal product was predicted to inhibit the intestinal efflux transporter BCRP [breast cancer resistance protein] and the hepatic uptake transporters OATP1B1 and OATP1B3,” the investigators wrote, which suggested that goldenseal would increase the area under the plasma concentration-time curve (AUC) of rosuvastatin acid and lactone.

This prediction was clinically tested in 16 healthy volunteers: 8 men and 8 nonpregnant women.

In the baseline portion of the study, each participant received an oral transporter probe cocktail consisting of 10 mg rosuvastatin (OATP1B1/3 and BCRP), 50 mg metformin (OCT1/2 and MATE1/2-K), 1 mg furosemide (OAT1/3), and 2.5 mg midazolam (CYP3A; positive control). Plasma and urine samples were collected before and after the cocktail, with urine collected up to 24 hours later, and plasma collected up to 96 hours later.

Following a minimum 9-day washout period, the same cohort received 1 gram of goldenseal every 8 hours for 5 days. On the day 6, the drug cocktail was given again, followed by two additional doses of goldenseal at 4-hour intervals. At the same time points used in the baseline protocol, urine and plasma samples were collected.

Plasma concentration vs. time profiles revealed that the model-based prediction was false, in that the presence of goldenseal did not alter the pharmacokinetics of rosuvastatin acid and lactone. The investigators suggested that this could be due to incomplete dissolution of goldenseal in the intestinal lumen, and/or low enterocyte concentrations of goldenseal stemming from “low permeability or extensive enterocyte metabolism or efflux.”

In contrast, and unpredicted by the basic model, goldenseal had a significant impact on apical efflux transporters MATE1 and MATE2-K, which mediate renal excretion of metformin. In consequence, AUC from zero to infinity and maximum plasma concentration of metformin were reduced by 23% and 27%, respectively.

“These observations, coupled with no change in half-life, suggested that goldenseal decreased metformin oral bioavailability by altering intestinal permeability, transport, and/or other processes involved in metformin absorption,” the investigators wrote.

According to principal author Mary Paine, PhD, of Washington State University, Spokane, this finding may have clinically significant implications for patients currently taking metformin for type 2 diabetes.

Work load, not personal vulnerability, may be at the root of the current physician burnout crisis, a recent study has concluded.

The cutting-edge research utilized cognitive theory and work load analysis to get at the source of burnout among practitioners. The findings indicate that, although some institutions continue to emphasize personal responsibility of physicians to address the issue, it may be the amount and structure of the work itself that triggers burnout in doctors.

“We evaluated the cognitive load of a clinical workday in a national sample of U.S. physicians and its relationship with burnout and professional satisfaction,” wrote Elizabeth Harry, MD, SFHM, a hospitalist at the University of Colorado at Denver, Aurora and coauthors. The results were reported in the Joint Commission Journal on Quality and Patient Safety.

The researchers investigated whether task load correlated with burnout scores in a large national study of U.S. physicians from October 2017 to March 2018.

As the delivery of health care becomes more complex, physicians are charged with ever-increasing amount of administrative and cognitive tasks. Recent evidence indicates that this growing complexity of work is tied to a greater risk of burnout in physicians, compared with workers in other fields. Cognitive load theory, pioneered by psychologist Jonathan Sweller, identified limitations in working memory that humans depend on to carry out cognitive tasks. Cognitive load refers to the amount of working memory used, which can be reduced in the presence of external emotional or physiological stressors. While a potential link between cognitive load and burnout may seem self-evident, the correlation between the cognitive load of physicians and burnout has not been evaluated in a large-scale study until recently.

wutwhanfoto/Getty Images

Physician task load (PTL) was measured using the National Aeronautics and Space Administration Task Load Index (NASA-TLX), a validated questionnaire frequently used to evaluate the cognitive load of work environments, including health care environments. Four domains (perception of effort and mental, physical, and temporal demands) were used to calculate the total PTL score.

Burnout was evaluated using the Emotional Exhaustion and Depersonalization scales of the Maslach Burnout Inventory, a validated tool considered the gold standard for measurement.

The survey sample consisted of physicians of all specialties and was assembled using the American Medical Association Physician Masterfile, an almost complete record of all U.S. physicians independent of AMA membership. All responses were anonymous and participation was voluntary.
 

Results

Among 30,456 physicians who received the survey, 5,197 (17.1%) responded. In total, 5,276 physicians were included in the analysis.

The median age of respondents was 53 years, and 61.8% self-identified as male. Twenty-four specialties were identified: 23.8% were from a primary care discipline and internal medicine represented the largest respondent group (12.1%).

Almost half of respondents (49.7%) worked in private practice, and 44.8% had been in practice for 21 years or longer.

Overall, 44.0% had at least one symptom of burnout, 38.8% of participants scored in the high range for emotional exhaustion, and 27.4% scored in the high range for depersonalization. The mean score in task load dimension varied by specialty.

The mean PTL score was 260.9 (standard deviation, 71.4). The specialties with the highest PTL score were emergency medicine (369.8), urology (353.7), general surgery subspecialties (343.9), internal medicine subspecialties (342.2), and radiology (341.6).

Aside from specialty, PTL scores also varied by practice setting, gender, age, number of hours worked per week, number of nights on call per week, and years in practice.

The researchers observed a dose response relationship between PTL and risk of burnout. For every 40-point (10%) reduction in PTL, there was 33% lower odds of experiencing burnout (odds ratio, 0.67; 95% confidence interval, 0.65-0.70; P < .0001). Multivariable analyses also indicated that PTL was a significant predictor of burnout, independent of practice setting, specialty, age, gender, and hours worked.
 

Organizational strategies to reduce physician burnout

Coauthors of the study, Tait D. Shanafelt, MD, professor of medicine at Stanford (Calif.) University and Colin P. West, MD, PhD, of the Mayo Clinic in Rochester, Minn., are both experts on physician well-being and are passionate about finding new ways to reduce physician distress and improving health care delivery.

“Authentic efforts to address this problem must move beyond personal resilience,” Dr. Shanafelt said in an interview. “Organizations that fail to get serious about this issue are going to be left behind and struggle in the war for talent.

“Much like our efforts to improve quality, advancing clinician well-being requires organizations to make it a priority and establish the structure, process, and leadership to promote the desired outcomes,” said Dr. Shanafelt.

One potential strategy for improvement is appointing a chief wellness officer, a dedicated individual within the health care system that leads the organizational effort, explained Dr. Shanafelt. “Over 30 vanguard institutions across the United States have already taken this step.”

Dr. West, a coauthor of the study, explained that conducting an analysis of PTL is fairly straightforward for hospitals and individual institutions. “The NASA-TLX tool is widely available, free to use, and not overly complex, and it could be used to provide insight into physician effort and mental, physical, and temporal demand levels,” he said in an interview.

“Deeper evaluations could follow to identify specific potential solutions, particularly system-level approaches to alleviate PTL,” Dr. West explained. “In the short term, such analyses and solutions would have costs, but helping physicians work more optimally and with less chronic strain from excessive task load would save far more than these costs overall.”

Dr. West also noted that physician burnout is very expensive to a health care system, and strategies to promote physician well-being would be a prudent financial decision long term for health care organizations.

Dr. Harry, lead author of the study, agreed with Dr. West, noting that “quality improvement literature has demonstrated that improvements in inefficiencies that lead to increased demand in the workplace often has the benefit of reduced cost.

“Many studies have demonstrated the risk of turnover due to burnout and the significant cost of physician turn over,” she said in an interview. “This cost avoidance is well worth the investment in improved operations to minimize unnecessary task load.”

Dr. Harry also recommended the NASA-TLX tool as a free resource for health systems and organizations. She noted that future studies will further validate the reliability of the tool.

“At the core, we need to focus on system redesign at both the micro and the macro level,” Dr. Harry said. “Each health system will need to assess inefficiencies in their work flow, while regulatory bodies need to consider the downstream task load of mandates and reporting requirements, all of which contribute to more cognitive load.”

The study was supported by funding from the Stanford Medicine WellMD Center, the American Medical Association, and the Mayo Clinic department of medicine program on physician well-being. Coauthors Lotte N. Dyrbye, MD, and Dr. Shanafelt are coinventors of the Physician Well-being Index, Medical Student Well-Being Index, Nurse Well-Being, and Well-Being Index. Mayo Clinic holds the copyright to these instruments and has licensed them for external use. Dr. Dyrbye and Dr. Shanafelt receive a portion of any royalties paid to Mayo Clinic. All other authors reported no conflicts of interest.

Work load, not personal vulnerability, may be at the root of the current physician burnout crisis, a recent study has concluded.

The cutting-edge research utilized cognitive theory and work load analysis to get at the source of burnout among practitioners. The findings indicate that, although some institutions continue to emphasize personal responsibility of physicians to address the issue, it may be the amount and structure of the work itself that triggers burnout in doctors.

“We evaluated the cognitive load of a clinical workday in a national sample of U.S. physicians and its relationship with burnout and professional satisfaction,” wrote Elizabeth Harry, MD, SFHM, a hospitalist at the University of Colorado at Denver, Aurora and coauthors. The results were reported in the Joint Commission Journal on Quality and Patient Safety.

The researchers investigated whether task load correlated with burnout scores in a large national study of U.S. physicians from October 2017 to March 2018.

As the delivery of health care becomes more complex, physicians are charged with ever-increasing amount of administrative and cognitive tasks. Recent evidence indicates that this growing complexity of work is tied to a greater risk of burnout in physicians, compared with workers in other fields. Cognitive load theory, pioneered by psychologist Jonathan Sweller, identified limitations in working memory that humans depend on to carry out cognitive tasks. Cognitive load refers to the amount of working memory used, which can be reduced in the presence of external emotional or physiological stressors. While a potential link between cognitive load and burnout may seem self-evident, the correlation between the cognitive load of physicians and burnout has not been evaluated in a large-scale study until recently.

wutwhanfoto/Getty Images

Physician task load (PTL) was measured using the National Aeronautics and Space Administration Task Load Index (NASA-TLX), a validated questionnaire frequently used to evaluate the cognitive load of work environments, including health care environments. Four domains (perception of effort and mental, physical, and temporal demands) were used to calculate the total PTL score.

Burnout was evaluated using the Emotional Exhaustion and Depersonalization scales of the Maslach Burnout Inventory, a validated tool considered the gold standard for measurement.

The survey sample consisted of physicians of all specialties and was assembled using the American Medical Association Physician Masterfile, an almost complete record of all U.S. physicians independent of AMA membership. All responses were anonymous and participation was voluntary.
 

Results

Among 30,456 physicians who received the survey, 5,197 (17.1%) responded. In total, 5,276 physicians were included in the analysis.

The median age of respondents was 53 years, and 61.8% self-identified as male. Twenty-four specialties were identified: 23.8% were from a primary care discipline and internal medicine represented the largest respondent group (12.1%).

Almost half of respondents (49.7%) worked in private practice, and 44.8% had been in practice for 21 years or longer.

Overall, 44.0% had at least one symptom of burnout, 38.8% of participants scored in the high range for emotional exhaustion, and 27.4% scored in the high range for depersonalization. The mean score in task load dimension varied by specialty.

The mean PTL score was 260.9 (standard deviation, 71.4). The specialties with the highest PTL score were emergency medicine (369.8), urology (353.7), general surgery subspecialties (343.9), internal medicine subspecialties (342.2), and radiology (341.6).

Aside from specialty, PTL scores also varied by practice setting, gender, age, number of hours worked per week, number of nights on call per week, and years in practice.

The researchers observed a dose response relationship between PTL and risk of burnout. For every 40-point (10%) reduction in PTL, there was 33% lower odds of experiencing burnout (odds ratio, 0.67; 95% confidence interval, 0.65-0.70; P < .0001). Multivariable analyses also indicated that PTL was a significant predictor of burnout, independent of practice setting, specialty, age, gender, and hours worked.
 

Organizational strategies to reduce physician burnout

Coauthors of the study, Tait D. Shanafelt, MD, professor of medicine at Stanford (Calif.) University and Colin P. West, MD, PhD, of the Mayo Clinic in Rochester, Minn., are both experts on physician well-being and are passionate about finding new ways to reduce physician distress and improving health care delivery.

“Authentic efforts to address this problem must move beyond personal resilience,” Dr. Shanafelt said in an interview. “Organizations that fail to get serious about this issue are going to be left behind and struggle in the war for talent.

“Much like our efforts to improve quality, advancing clinician well-being requires organizations to make it a priority and establish the structure, process, and leadership to promote the desired outcomes,” said Dr. Shanafelt.

One potential strategy for improvement is appointing a chief wellness officer, a dedicated individual within the health care system that leads the organizational effort, explained Dr. Shanafelt. “Over 30 vanguard institutions across the United States have already taken this step.”

Dr. West, a coauthor of the study, explained that conducting an analysis of PTL is fairly straightforward for hospitals and individual institutions. “The NASA-TLX tool is widely available, free to use, and not overly complex, and it could be used to provide insight into physician effort and mental, physical, and temporal demand levels,” he said in an interview.

“Deeper evaluations could follow to identify specific potential solutions, particularly system-level approaches to alleviate PTL,” Dr. West explained. “In the short term, such analyses and solutions would have costs, but helping physicians work more optimally and with less chronic strain from excessive task load would save far more than these costs overall.”

Dr. West also noted that physician burnout is very expensive to a health care system, and strategies to promote physician well-being would be a prudent financial decision long term for health care organizations.

Dr. Harry, lead author of the study, agreed with Dr. West, noting that “quality improvement literature has demonstrated that improvements in inefficiencies that lead to increased demand in the workplace often has the benefit of reduced cost.

“Many studies have demonstrated the risk of turnover due to burnout and the significant cost of physician turn over,” she said in an interview. “This cost avoidance is well worth the investment in improved operations to minimize unnecessary task load.”

Dr. Harry also recommended the NASA-TLX tool as a free resource for health systems and organizations. She noted that future studies will further validate the reliability of the tool.

“At the core, we need to focus on system redesign at both the micro and the macro level,” Dr. Harry said. “Each health system will need to assess inefficiencies in their work flow, while regulatory bodies need to consider the downstream task load of mandates and reporting requirements, all of which contribute to more cognitive load.”

The study was supported by funding from the Stanford Medicine WellMD Center, the American Medical Association, and the Mayo Clinic department of medicine program on physician well-being. Coauthors Lotte N. Dyrbye, MD, and Dr. Shanafelt are coinventors of the Physician Well-being Index, Medical Student Well-Being Index, Nurse Well-Being, and Well-Being Index. Mayo Clinic holds the copyright to these instruments and has licensed them for external use. Dr. Dyrbye and Dr. Shanafelt receive a portion of any royalties paid to Mayo Clinic. All other authors reported no conflicts of interest.

Work load, not personal vulnerability, may be at the root of the current physician burnout crisis, a recent study has concluded.

The cutting-edge research utilized cognitive theory and work load analysis to get at the source of burnout among practitioners. The findings indicate that, although some institutions continue to emphasize personal responsibility of physicians to address the issue, it may be the amount and structure of the work itself that triggers burnout in doctors.

“We evaluated the cognitive load of a clinical workday in a national sample of U.S. physicians and its relationship with burnout and professional satisfaction,” wrote Elizabeth Harry, MD, SFHM, a hospitalist at the University of Colorado at Denver, Aurora and coauthors. The results were reported in the Joint Commission Journal on Quality and Patient Safety.

The researchers investigated whether task load correlated with burnout scores in a large national study of U.S. physicians from October 2017 to March 2018.

As the delivery of health care becomes more complex, physicians are charged with ever-increasing amount of administrative and cognitive tasks. Recent evidence indicates that this growing complexity of work is tied to a greater risk of burnout in physicians, compared with workers in other fields. Cognitive load theory, pioneered by psychologist Jonathan Sweller, identified limitations in working memory that humans depend on to carry out cognitive tasks. Cognitive load refers to the amount of working memory used, which can be reduced in the presence of external emotional or physiological stressors. While a potential link between cognitive load and burnout may seem self-evident, the correlation between the cognitive load of physicians and burnout has not been evaluated in a large-scale study until recently.

wutwhanfoto/Getty Images

Physician task load (PTL) was measured using the National Aeronautics and Space Administration Task Load Index (NASA-TLX), a validated questionnaire frequently used to evaluate the cognitive load of work environments, including health care environments. Four domains (perception of effort and mental, physical, and temporal demands) were used to calculate the total PTL score.

Burnout was evaluated using the Emotional Exhaustion and Depersonalization scales of the Maslach Burnout Inventory, a validated tool considered the gold standard for measurement.

The survey sample consisted of physicians of all specialties and was assembled using the American Medical Association Physician Masterfile, an almost complete record of all U.S. physicians independent of AMA membership. All responses were anonymous and participation was voluntary.
 

Results

Among 30,456 physicians who received the survey, 5,197 (17.1%) responded. In total, 5,276 physicians were included in the analysis.

The median age of respondents was 53 years, and 61.8% self-identified as male. Twenty-four specialties were identified: 23.8% were from a primary care discipline and internal medicine represented the largest respondent group (12.1%).

Almost half of respondents (49.7%) worked in private practice, and 44.8% had been in practice for 21 years or longer.

Overall, 44.0% had at least one symptom of burnout, 38.8% of participants scored in the high range for emotional exhaustion, and 27.4% scored in the high range for depersonalization. The mean score in task load dimension varied by specialty.

The mean PTL score was 260.9 (standard deviation, 71.4). The specialties with the highest PTL score were emergency medicine (369.8), urology (353.7), general surgery subspecialties (343.9), internal medicine subspecialties (342.2), and radiology (341.6).

Aside from specialty, PTL scores also varied by practice setting, gender, age, number of hours worked per week, number of nights on call per week, and years in practice.

The researchers observed a dose response relationship between PTL and risk of burnout. For every 40-point (10%) reduction in PTL, there was 33% lower odds of experiencing burnout (odds ratio, 0.67; 95% confidence interval, 0.65-0.70; P < .0001). Multivariable analyses also indicated that PTL was a significant predictor of burnout, independent of practice setting, specialty, age, gender, and hours worked.
 

Organizational strategies to reduce physician burnout

Coauthors of the study, Tait D. Shanafelt, MD, professor of medicine at Stanford (Calif.) University and Colin P. West, MD, PhD, of the Mayo Clinic in Rochester, Minn., are both experts on physician well-being and are passionate about finding new ways to reduce physician distress and improving health care delivery.

“Authentic efforts to address this problem must move beyond personal resilience,” Dr. Shanafelt said in an interview. “Organizations that fail to get serious about this issue are going to be left behind and struggle in the war for talent.

“Much like our efforts to improve quality, advancing clinician well-being requires organizations to make it a priority and establish the structure, process, and leadership to promote the desired outcomes,” said Dr. Shanafelt.

One potential strategy for improvement is appointing a chief wellness officer, a dedicated individual within the health care system that leads the organizational effort, explained Dr. Shanafelt. “Over 30 vanguard institutions across the United States have already taken this step.”

Dr. West, a coauthor of the study, explained that conducting an analysis of PTL is fairly straightforward for hospitals and individual institutions. “The NASA-TLX tool is widely available, free to use, and not overly complex, and it could be used to provide insight into physician effort and mental, physical, and temporal demand levels,” he said in an interview.

“Deeper evaluations could follow to identify specific potential solutions, particularly system-level approaches to alleviate PTL,” Dr. West explained. “In the short term, such analyses and solutions would have costs, but helping physicians work more optimally and with less chronic strain from excessive task load would save far more than these costs overall.”

Dr. West also noted that physician burnout is very expensive to a health care system, and strategies to promote physician well-being would be a prudent financial decision long term for health care organizations.

Dr. Harry, lead author of the study, agreed with Dr. West, noting that “quality improvement literature has demonstrated that improvements in inefficiencies that lead to increased demand in the workplace often has the benefit of reduced cost.

“Many studies have demonstrated the risk of turnover due to burnout and the significant cost of physician turn over,” she said in an interview. “This cost avoidance is well worth the investment in improved operations to minimize unnecessary task load.”

Dr. Harry also recommended the NASA-TLX tool as a free resource for health systems and organizations. She noted that future studies will further validate the reliability of the tool.

“At the core, we need to focus on system redesign at both the micro and the macro level,” Dr. Harry said. “Each health system will need to assess inefficiencies in their work flow, while regulatory bodies need to consider the downstream task load of mandates and reporting requirements, all of which contribute to more cognitive load.”

The study was supported by funding from the Stanford Medicine WellMD Center, the American Medical Association, and the Mayo Clinic department of medicine program on physician well-being. Coauthors Lotte N. Dyrbye, MD, and Dr. Shanafelt are coinventors of the Physician Well-being Index, Medical Student Well-Being Index, Nurse Well-Being, and Well-Being Index. Mayo Clinic holds the copyright to these instruments and has licensed them for external use. Dr. Dyrbye and Dr. Shanafelt receive a portion of any royalties paid to Mayo Clinic. All other authors reported no conflicts of interest.

Rochelle Walensky, MD, MPH, director of the Centers for Disease Control and Prevention, walked through a multiagency attack plan for halting the spread of three COVID-19 variants earlier this week.

As part of JAMA’s Q&A series with JAMA editor in chief Howard Bauchner, MD, Dr. Walensky referenced the blueprint she coathored with Anthony Fauci, MD, the nation’s top infectious disease expert, and Henry T. Walke, MD, MPH, of the CDC, which was published on Feb. 17 in JAMA.

In the viewpoint article, they explain that the Department of Health & Human Services has established the SARS-CoV-2 Interagency Group to improve coordination among the CDC, the National Institutes of Health, the Food and Drug Administration, the Biomedical Advanced Research and Development Authority, the Department of Agriculture, and the Department of Defense.

Dr. Walensky said the first objective is to reinforce vigilance regarding public health mitigation strategies to decrease the amount of virus that’s circulating.

As part of that strategy, she said, the CDC strongly urges against nonessential travel.

In addition, public health leaders are working on a surveillance system to better understand the SARS-CoV-2 variants. That will take ramping up genome sequencing of the SARS-CoV-2 virus and ensuring that sampling is geographically representative.

She said the CDC is partnering with state health labs to obtain about 750 samples every week and is teaming up with commercial labs and academic centers to obtain an interim target of 6,000 samples per week.

She acknowledged the United States “is not where we need to be” with sequencing but has come a long way since January. At that time, they were sequencing 250 samples every week; they are currently sequencing thousands each week.

Data analysis is another concern: “We need to be able to understand at the basic science level what the information means,” Dr. Walensky said.

Researchers aren’t sure how the variants might affect use of convalescent plasma or monoclonal antibody treatments. It is expected that 5% of persons who are vaccinated against COVID-19 will nevertheless contract the disease. Sequencing will help answer whether such persons who have been vaccinated and who subsequently contract the virus are among those 5% or whether have been infected by a variant that evades the vaccine.

Accelerating vaccine administration globally and in the United States is essential, Dr. Walensky said.

As of Feb. 17, 56 million doses had been administered in the United States.
 

Top three threats

She updated the numbers on the three biggest variant threats.

Regarding B.1.1.7, which originated in the United Kingdom, she said: “So far, we’ve had over 1,200 cases in 41 states.” She noted that the variant is likely to be about 50% more transmissible and 30% to 50% more virulent.

“So far, it looks like that strain doesn’t have any real decrease in susceptibility to our vaccines,” she said.

The strain from South Africa (B.1.351) has been found in 19 cases in the United States.

The P.1. variant, which originated in Brazil, has been identified in two cases in two states.
 

Outlook for March and April

Dr. Bauchner asked Dr. Walensky what she envisions for March and April. He noted that public optimism is high in light of the continued reductions in COVID-19 case numbers, hospitalizations, and deaths, as well as the fact that warmer weather is coming and that more vaccinations are on the horizon.

“While I really am hopeful for what could happen in March and April,” Dr. Walensky said, “I really do know that this could go bad so fast. We saw it in November. We saw it in December.”

CDC models have projected that, by March, the more transmissible B.1.1.7 strain is likely to be the dominant strain, she reiterated.

“I worry that it will be spring, and we will all have had enough,” Dr. Walensky said. She noted that some states are already relaxing mask mandates.

“Around that time, life will look and feel a little better, and the motivation for those who might be vaccine hesitant may be diminished,” she said.

Dr. Bauchner also asked her to weigh in on whether a third vaccine, from Johnson & Johnson (J&J), may soon gain FDA emergency-use authorization – and whether its lower expected efficacy rate may result in a tiered system of vaccinations, with higher-risk populations receiving the more efficacious vaccines.

Dr. Walensky said more data are needed before that question can be answered.

“It may very well be that the data point us to the best populations in which to use this vaccine,” she said.

In phase 3 data, the J&J vaccine was shown to be 72% effective in the United States for moderate to severe disease.

Dr. Walensky said it’s important to remember that the projected efficacy for that vaccine is higher than that for the flu shot as well as many other vaccines currently in use for other diseases.

She said it also has several advantages. The vaccine has less-stringent storage requirements, requires just one dose, and protects against hospitalization and death, although it’s less efficacious in protecting against contracting the disease.

“I think many people would opt to get that one if they could get it sooner,” she said.

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

Rochelle Walensky, MD, MPH, director of the Centers for Disease Control and Prevention, walked through a multiagency attack plan for halting the spread of three COVID-19 variants earlier this week.

As part of JAMA’s Q&A series with JAMA editor in chief Howard Bauchner, MD, Dr. Walensky referenced the blueprint she coathored with Anthony Fauci, MD, the nation’s top infectious disease expert, and Henry T. Walke, MD, MPH, of the CDC, which was published on Feb. 17 in JAMA.

In the viewpoint article, they explain that the Department of Health & Human Services has established the SARS-CoV-2 Interagency Group to improve coordination among the CDC, the National Institutes of Health, the Food and Drug Administration, the Biomedical Advanced Research and Development Authority, the Department of Agriculture, and the Department of Defense.

Dr. Walensky said the first objective is to reinforce vigilance regarding public health mitigation strategies to decrease the amount of virus that’s circulating.

As part of that strategy, she said, the CDC strongly urges against nonessential travel.

In addition, public health leaders are working on a surveillance system to better understand the SARS-CoV-2 variants. That will take ramping up genome sequencing of the SARS-CoV-2 virus and ensuring that sampling is geographically representative.

She said the CDC is partnering with state health labs to obtain about 750 samples every week and is teaming up with commercial labs and academic centers to obtain an interim target of 6,000 samples per week.

She acknowledged the United States “is not where we need to be” with sequencing but has come a long way since January. At that time, they were sequencing 250 samples every week; they are currently sequencing thousands each week.

Data analysis is another concern: “We need to be able to understand at the basic science level what the information means,” Dr. Walensky said.

Researchers aren’t sure how the variants might affect use of convalescent plasma or monoclonal antibody treatments. It is expected that 5% of persons who are vaccinated against COVID-19 will nevertheless contract the disease. Sequencing will help answer whether such persons who have been vaccinated and who subsequently contract the virus are among those 5% or whether have been infected by a variant that evades the vaccine.

Accelerating vaccine administration globally and in the United States is essential, Dr. Walensky said.

As of Feb. 17, 56 million doses had been administered in the United States.
 

Top three threats

She updated the numbers on the three biggest variant threats.

Regarding B.1.1.7, which originated in the United Kingdom, she said: “So far, we’ve had over 1,200 cases in 41 states.” She noted that the variant is likely to be about 50% more transmissible and 30% to 50% more virulent.

“So far, it looks like that strain doesn’t have any real decrease in susceptibility to our vaccines,” she said.

The strain from South Africa (B.1.351) has been found in 19 cases in the United States.

The P.1. variant, which originated in Brazil, has been identified in two cases in two states.
 

Outlook for March and April

Dr. Bauchner asked Dr. Walensky what she envisions for March and April. He noted that public optimism is high in light of the continued reductions in COVID-19 case numbers, hospitalizations, and deaths, as well as the fact that warmer weather is coming and that more vaccinations are on the horizon.

“While I really am hopeful for what could happen in March and April,” Dr. Walensky said, “I really do know that this could go bad so fast. We saw it in November. We saw it in December.”

CDC models have projected that, by March, the more transmissible B.1.1.7 strain is likely to be the dominant strain, she reiterated.

“I worry that it will be spring, and we will all have had enough,” Dr. Walensky said. She noted that some states are already relaxing mask mandates.

“Around that time, life will look and feel a little better, and the motivation for those who might be vaccine hesitant may be diminished,” she said.

Dr. Bauchner also asked her to weigh in on whether a third vaccine, from Johnson & Johnson (J&J), may soon gain FDA emergency-use authorization – and whether its lower expected efficacy rate may result in a tiered system of vaccinations, with higher-risk populations receiving the more efficacious vaccines.

Dr. Walensky said more data are needed before that question can be answered.

“It may very well be that the data point us to the best populations in which to use this vaccine,” she said.

In phase 3 data, the J&J vaccine was shown to be 72% effective in the United States for moderate to severe disease.

Dr. Walensky said it’s important to remember that the projected efficacy for that vaccine is higher than that for the flu shot as well as many other vaccines currently in use for other diseases.

She said it also has several advantages. The vaccine has less-stringent storage requirements, requires just one dose, and protects against hospitalization and death, although it’s less efficacious in protecting against contracting the disease.

“I think many people would opt to get that one if they could get it sooner,” she said.

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

Rochelle Walensky, MD, MPH, director of the Centers for Disease Control and Prevention, walked through a multiagency attack plan for halting the spread of three COVID-19 variants earlier this week.

As part of JAMA’s Q&A series with JAMA editor in chief Howard Bauchner, MD, Dr. Walensky referenced the blueprint she coathored with Anthony Fauci, MD, the nation’s top infectious disease expert, and Henry T. Walke, MD, MPH, of the CDC, which was published on Feb. 17 in JAMA.

In the viewpoint article, they explain that the Department of Health & Human Services has established the SARS-CoV-2 Interagency Group to improve coordination among the CDC, the National Institutes of Health, the Food and Drug Administration, the Biomedical Advanced Research and Development Authority, the Department of Agriculture, and the Department of Defense.

Dr. Walensky said the first objective is to reinforce vigilance regarding public health mitigation strategies to decrease the amount of virus that’s circulating.

As part of that strategy, she said, the CDC strongly urges against nonessential travel.

In addition, public health leaders are working on a surveillance system to better understand the SARS-CoV-2 variants. That will take ramping up genome sequencing of the SARS-CoV-2 virus and ensuring that sampling is geographically representative.

She said the CDC is partnering with state health labs to obtain about 750 samples every week and is teaming up with commercial labs and academic centers to obtain an interim target of 6,000 samples per week.

She acknowledged the United States “is not where we need to be” with sequencing but has come a long way since January. At that time, they were sequencing 250 samples every week; they are currently sequencing thousands each week.

Data analysis is another concern: “We need to be able to understand at the basic science level what the information means,” Dr. Walensky said.

Researchers aren’t sure how the variants might affect use of convalescent plasma or monoclonal antibody treatments. It is expected that 5% of persons who are vaccinated against COVID-19 will nevertheless contract the disease. Sequencing will help answer whether such persons who have been vaccinated and who subsequently contract the virus are among those 5% or whether have been infected by a variant that evades the vaccine.

Accelerating vaccine administration globally and in the United States is essential, Dr. Walensky said.

As of Feb. 17, 56 million doses had been administered in the United States.
 

Top three threats

She updated the numbers on the three biggest variant threats.

Regarding B.1.1.7, which originated in the United Kingdom, she said: “So far, we’ve had over 1,200 cases in 41 states.” She noted that the variant is likely to be about 50% more transmissible and 30% to 50% more virulent.

“So far, it looks like that strain doesn’t have any real decrease in susceptibility to our vaccines,” she said.

The strain from South Africa (B.1.351) has been found in 19 cases in the United States.

The P.1. variant, which originated in Brazil, has been identified in two cases in two states.
 

Outlook for March and April

Dr. Bauchner asked Dr. Walensky what she envisions for March and April. He noted that public optimism is high in light of the continued reductions in COVID-19 case numbers, hospitalizations, and deaths, as well as the fact that warmer weather is coming and that more vaccinations are on the horizon.

“While I really am hopeful for what could happen in March and April,” Dr. Walensky said, “I really do know that this could go bad so fast. We saw it in November. We saw it in December.”

CDC models have projected that, by March, the more transmissible B.1.1.7 strain is likely to be the dominant strain, she reiterated.

“I worry that it will be spring, and we will all have had enough,” Dr. Walensky said. She noted that some states are already relaxing mask mandates.

“Around that time, life will look and feel a little better, and the motivation for those who might be vaccine hesitant may be diminished,” she said.

Dr. Bauchner also asked her to weigh in on whether a third vaccine, from Johnson & Johnson (J&J), may soon gain FDA emergency-use authorization – and whether its lower expected efficacy rate may result in a tiered system of vaccinations, with higher-risk populations receiving the more efficacious vaccines.

Dr. Walensky said more data are needed before that question can be answered.

“It may very well be that the data point us to the best populations in which to use this vaccine,” she said.

In phase 3 data, the J&J vaccine was shown to be 72% effective in the United States for moderate to severe disease.

Dr. Walensky said it’s important to remember that the projected efficacy for that vaccine is higher than that for the flu shot as well as many other vaccines currently in use for other diseases.

She said it also has several advantages. The vaccine has less-stringent storage requirements, requires just one dose, and protects against hospitalization and death, although it’s less efficacious in protecting against contracting the disease.

“I think many people would opt to get that one if they could get it sooner,” she said.

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

The long-term neurologic symptoms such as “brain fog” experienced by some patients with COVID-19 may be caused by a unique pathology – the occlusion of brain capillaries by large megakaryocyte cells, a new report suggests.

The authors report five separate post-mortem cases from patients who died with COVID-19 in which large cells resembling megakaryocytes were identified in cortical capillaries. Immunohistochemistry subsequently confirmed their megakaryocyte identity.

They point out that the finding is of interest as – to their knowledge – megakaryocytes have not been found in the brain before.

The observations are described in a research letter published online Feb. 12 in JAMA Neurology.
 

Bone marrow cells in the brain

Lead author David Nauen, MD, PhD, a neuropathologist from Johns Hopkins University, Baltimore, reported that he identified these cells in the first analysis of post-mortem brain tissue from a patient who had COVID-19.

“Some other viruses cause changes in the brain such as encephalopathy, and as neurologic symptoms are often reported in COVID-19, I was curious to see if similar effects were seen in brain post-mortem samples from patients who had died with the infection,” Dr. Nauen said.

On his first analysis of the brain tissue of a patient who had COVID-19, Dr. Nauen saw no evidence of viral encephalitis, but he observed some “unusually large” cells in the brain capillaries.

“I was taken aback; I couldn’t figure out what they were. Then I realized these cells were megakaryocytes from the bone marrow. I have never seen these cells in the brain before. I asked several colleagues and none of them had either. After extensive literature searches, I could find no evidence of megakaryocytes being in the brain,” Dr. Nauen noted.

Megakaryocytes, he explained, are “very large cells, and the brain capillaries are very small – just large enough to let red blood cells and lymphocytes pass through. To see these very large cells in such vessels is extremely unusual. It looks like they are causing occlusions.”  

By occluding flow through individual capillaries, these large cells could cause ischemic alteration in a distinct pattern, potentially resulting in an atypical form of neurologic impairment, the authors suggest.

“This might alter the hemodynamics and put pressure on other vessels, possibly contributing to the increased risk of stroke that has been reported in COVID-19,” Dr. Nauen said. None of the samples he examined came from patients with COVID-19 who had had a stroke, he reported.

Other than the presence of megakaryocytes in the capillaries, the brain looked normal, he said. He has now examined samples from 15 brains of patients who had COVID-19 and megakaryocytes have been found in the brain capillaries in five cases.
 

New neurologic complication

Classic encephalitis found with other viruses has not been reported in brain post-mortem examinations from patients who had COVID-19, Dr. Nauen noted. “The cognitive issues such as grogginess associated with COVID-19 would indicate problems with the cortex but that hasn’t been documented. This occlusion of a multitude of tiny vessels by megalokaryocytes may offer some explanation of the cognitive issues. This is a new kind of vascular insult seen on pathology, and suggests a new kind of neurologic complication,” he added.

The big question is what these megakaryocytes are doing in the brain.

“Megakaryocytes are bone marrow cells. They are not immune cells. Their job is to produce platelets to help the blood clot. They are not normally found outside the bone marrow, but they have been reported in other organs in COVID-19 patients.

“But the big puzzle associated with finding them in the brain is how they get through the very fine network of blood vessels in the lungs. The geometry just doesn’t work. We don’t know which part of the COVID inflammatory response makes this happen,” said Dr. Nauen.

The authors suggest one possibility is that altered endothelial or other signaling is recruiting megakaryocytes into the circulation and somehow permitting them to pass through the lungs.

“We need to try and understand if there is anything distinctive about these megakaryocytes – which proteins are they expressing that may explain why they are behaving in such an unusual way,” said Dr. Nauen.

Noting that many patients with severe COVID-19 have problems with clotting, and megakaryocytes are part of the clotting system, he speculated that some sort of aberrant message is being sent to these cells.

“It is notable that we found megakaryocytes in cortical capillaries in 33% of cases examined. Because the standard brain autopsy sections taken sampled at random [are] only a minute portion of the cortical volume, finding these cells suggests the total burden could be considerable,” the authors wrote.

Dr. Nauen added that to his knowledge, this is the first report of such observations, and the next step is to look for similar findings in larger sample sizes.

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

The long-term neurologic symptoms such as “brain fog” experienced by some patients with COVID-19 may be caused by a unique pathology – the occlusion of brain capillaries by large megakaryocyte cells, a new report suggests.

The authors report five separate post-mortem cases from patients who died with COVID-19 in which large cells resembling megakaryocytes were identified in cortical capillaries. Immunohistochemistry subsequently confirmed their megakaryocyte identity.

They point out that the finding is of interest as – to their knowledge – megakaryocytes have not been found in the brain before.

The observations are described in a research letter published online Feb. 12 in JAMA Neurology.
 

Bone marrow cells in the brain

Lead author David Nauen, MD, PhD, a neuropathologist from Johns Hopkins University, Baltimore, reported that he identified these cells in the first analysis of post-mortem brain tissue from a patient who had COVID-19.

“Some other viruses cause changes in the brain such as encephalopathy, and as neurologic symptoms are often reported in COVID-19, I was curious to see if similar effects were seen in brain post-mortem samples from patients who had died with the infection,” Dr. Nauen said.

On his first analysis of the brain tissue of a patient who had COVID-19, Dr. Nauen saw no evidence of viral encephalitis, but he observed some “unusually large” cells in the brain capillaries.

“I was taken aback; I couldn’t figure out what they were. Then I realized these cells were megakaryocytes from the bone marrow. I have never seen these cells in the brain before. I asked several colleagues and none of them had either. After extensive literature searches, I could find no evidence of megakaryocytes being in the brain,” Dr. Nauen noted.

Megakaryocytes, he explained, are “very large cells, and the brain capillaries are very small – just large enough to let red blood cells and lymphocytes pass through. To see these very large cells in such vessels is extremely unusual. It looks like they are causing occlusions.”  

By occluding flow through individual capillaries, these large cells could cause ischemic alteration in a distinct pattern, potentially resulting in an atypical form of neurologic impairment, the authors suggest.

“This might alter the hemodynamics and put pressure on other vessels, possibly contributing to the increased risk of stroke that has been reported in COVID-19,” Dr. Nauen said. None of the samples he examined came from patients with COVID-19 who had had a stroke, he reported.

Other than the presence of megakaryocytes in the capillaries, the brain looked normal, he said. He has now examined samples from 15 brains of patients who had COVID-19 and megakaryocytes have been found in the brain capillaries in five cases.
 

New neurologic complication

Classic encephalitis found with other viruses has not been reported in brain post-mortem examinations from patients who had COVID-19, Dr. Nauen noted. “The cognitive issues such as grogginess associated with COVID-19 would indicate problems with the cortex but that hasn’t been documented. This occlusion of a multitude of tiny vessels by megalokaryocytes may offer some explanation of the cognitive issues. This is a new kind of vascular insult seen on pathology, and suggests a new kind of neurologic complication,” he added.

The big question is what these megakaryocytes are doing in the brain.

“Megakaryocytes are bone marrow cells. They are not immune cells. Their job is to produce platelets to help the blood clot. They are not normally found outside the bone marrow, but they have been reported in other organs in COVID-19 patients.

“But the big puzzle associated with finding them in the brain is how they get through the very fine network of blood vessels in the lungs. The geometry just doesn’t work. We don’t know which part of the COVID inflammatory response makes this happen,” said Dr. Nauen.

The authors suggest one possibility is that altered endothelial or other signaling is recruiting megakaryocytes into the circulation and somehow permitting them to pass through the lungs.

“We need to try and understand if there is anything distinctive about these megakaryocytes – which proteins are they expressing that may explain why they are behaving in such an unusual way,” said Dr. Nauen.

Noting that many patients with severe COVID-19 have problems with clotting, and megakaryocytes are part of the clotting system, he speculated that some sort of aberrant message is being sent to these cells.

“It is notable that we found megakaryocytes in cortical capillaries in 33% of cases examined. Because the standard brain autopsy sections taken sampled at random [are] only a minute portion of the cortical volume, finding these cells suggests the total burden could be considerable,” the authors wrote.

Dr. Nauen added that to his knowledge, this is the first report of such observations, and the next step is to look for similar findings in larger sample sizes.

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

The long-term neurologic symptoms such as “brain fog” experienced by some patients with COVID-19 may be caused by a unique pathology – the occlusion of brain capillaries by large megakaryocyte cells, a new report suggests.

The authors report five separate post-mortem cases from patients who died with COVID-19 in which large cells resembling megakaryocytes were identified in cortical capillaries. Immunohistochemistry subsequently confirmed their megakaryocyte identity.

They point out that the finding is of interest as – to their knowledge – megakaryocytes have not been found in the brain before.

The observations are described in a research letter published online Feb. 12 in JAMA Neurology.
 

Bone marrow cells in the brain

Lead author David Nauen, MD, PhD, a neuropathologist from Johns Hopkins University, Baltimore, reported that he identified these cells in the first analysis of post-mortem brain tissue from a patient who had COVID-19.

“Some other viruses cause changes in the brain such as encephalopathy, and as neurologic symptoms are often reported in COVID-19, I was curious to see if similar effects were seen in brain post-mortem samples from patients who had died with the infection,” Dr. Nauen said.

On his first analysis of the brain tissue of a patient who had COVID-19, Dr. Nauen saw no evidence of viral encephalitis, but he observed some “unusually large” cells in the brain capillaries.

“I was taken aback; I couldn’t figure out what they were. Then I realized these cells were megakaryocytes from the bone marrow. I have never seen these cells in the brain before. I asked several colleagues and none of them had either. After extensive literature searches, I could find no evidence of megakaryocytes being in the brain,” Dr. Nauen noted.

Megakaryocytes, he explained, are “very large cells, and the brain capillaries are very small – just large enough to let red blood cells and lymphocytes pass through. To see these very large cells in such vessels is extremely unusual. It looks like they are causing occlusions.”  

By occluding flow through individual capillaries, these large cells could cause ischemic alteration in a distinct pattern, potentially resulting in an atypical form of neurologic impairment, the authors suggest.

“This might alter the hemodynamics and put pressure on other vessels, possibly contributing to the increased risk of stroke that has been reported in COVID-19,” Dr. Nauen said. None of the samples he examined came from patients with COVID-19 who had had a stroke, he reported.

Other than the presence of megakaryocytes in the capillaries, the brain looked normal, he said. He has now examined samples from 15 brains of patients who had COVID-19 and megakaryocytes have been found in the brain capillaries in five cases.
 

New neurologic complication

Classic encephalitis found with other viruses has not been reported in brain post-mortem examinations from patients who had COVID-19, Dr. Nauen noted. “The cognitive issues such as grogginess associated with COVID-19 would indicate problems with the cortex but that hasn’t been documented. This occlusion of a multitude of tiny vessels by megalokaryocytes may offer some explanation of the cognitive issues. This is a new kind of vascular insult seen on pathology, and suggests a new kind of neurologic complication,” he added.

The big question is what these megakaryocytes are doing in the brain.

“Megakaryocytes are bone marrow cells. They are not immune cells. Their job is to produce platelets to help the blood clot. They are not normally found outside the bone marrow, but they have been reported in other organs in COVID-19 patients.

“But the big puzzle associated with finding them in the brain is how they get through the very fine network of blood vessels in the lungs. The geometry just doesn’t work. We don’t know which part of the COVID inflammatory response makes this happen,” said Dr. Nauen.

The authors suggest one possibility is that altered endothelial or other signaling is recruiting megakaryocytes into the circulation and somehow permitting them to pass through the lungs.

“We need to try and understand if there is anything distinctive about these megakaryocytes – which proteins are they expressing that may explain why they are behaving in such an unusual way,” said Dr. Nauen.

Noting that many patients with severe COVID-19 have problems with clotting, and megakaryocytes are part of the clotting system, he speculated that some sort of aberrant message is being sent to these cells.

“It is notable that we found megakaryocytes in cortical capillaries in 33% of cases examined. Because the standard brain autopsy sections taken sampled at random [are] only a minute portion of the cortical volume, finding these cells suggests the total burden could be considerable,” the authors wrote.

Dr. Nauen added that to his knowledge, this is the first report of such observations, and the next step is to look for similar findings in larger sample sizes.

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

A new analysis of 11 phase 3/4 cardiovascular clinical trials conducted by the Thrombolysis in Myocardial Infarction (TIMI) group shows that women are more likely than men to discontinue study medications, and to withdraw from trials. The differences could not be explained by different frequencies of reporting adverse events, or by baseline differences.

©BananaStock/thinkstockphotos.com

The findings are significant, since cardiovascular drugs are routinely prescribed to women based on clinical trials that are populated largely by men, according to lead study author Emily Lau, MD, who is an advanced cardiology fellow at Massachusetts General Hospital, Boston. “It highlights an important disparity in clinical research in cardiology, because if women are already not represented well in clinical trials, and if once in clinical trials they don’t complete the study, it’s very hard to extrapolate the clinical trial findings to our female population in an accurate way,” Dr. Lau said in an interview. She also noted that sex-specific and reproductive factors are increasingly recognized as being important in the development and progression of cardiovascular disease.

A new analysis of 11 phase 3/4 cardiovascular clinical trials conducted by the Thrombolysis in Myocardial Infarction (TIMI) group shows that women are more likely than men to discontinue study medications, and to withdraw from trials. The differences could not be explained by different frequencies of reporting adverse events, or by baseline differences.

©BananaStock/thinkstockphotos.com

The findings are significant, since cardiovascular drugs are routinely prescribed to women based on clinical trials that are populated largely by men, according to lead study author Emily Lau, MD, who is an advanced cardiology fellow at Massachusetts General Hospital, Boston. “It highlights an important disparity in clinical research in cardiology, because if women are already not represented well in clinical trials, and if once in clinical trials they don’t complete the study, it’s very hard to extrapolate the clinical trial findings to our female population in an accurate way,” Dr. Lau said in an interview. She also noted that sex-specific and reproductive factors are increasingly recognized as being important in the development and progression of cardiovascular disease.

A new analysis of 11 phase 3/4 cardiovascular clinical trials conducted by the Thrombolysis in Myocardial Infarction (TIMI) group shows that women are more likely than men to discontinue study medications, and to withdraw from trials. The differences could not be explained by different frequencies of reporting adverse events, or by baseline differences.

©BananaStock/thinkstockphotos.com

The findings are significant, since cardiovascular drugs are routinely prescribed to women based on clinical trials that are populated largely by men, according to lead study author Emily Lau, MD, who is an advanced cardiology fellow at Massachusetts General Hospital, Boston. “It highlights an important disparity in clinical research in cardiology, because if women are already not represented well in clinical trials, and if once in clinical trials they don’t complete the study, it’s very hard to extrapolate the clinical trial findings to our female population in an accurate way,” Dr. Lau said in an interview. She also noted that sex-specific and reproductive factors are increasingly recognized as being important in the development and progression of cardiovascular disease.

The Food and Drug Administration has approved a groundbreaking expanded indication for sacubitril/valsartan (Entresto), making it the first drug in the United States indicated for chronic heart failure not specifically characterized by ejection fraction.

The new labeling, as provided by Novartis, grants physicians a good deal of discretion in prescribing sacubitril/valsartan for patients with HF beyond those with HF and reduced ejection fraction (HFrEF), for which the drug was approved in 2015 primarily on the basis of the PARADIGM-HF trial.

The indication now reads, “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure. Benefits are most clearly evident in patients with left ventricular ejection fraction (LVEF) below normal.”

Of note, the labeling cautions that “LVEF is a variable measure, so use clinical judgment in deciding whom to treat.”

The expanded indication essentially extends the sacubitril/valsartan option to many patients with HF and preserved LVEF (HFpEF), who in practice are most likely to have an LVEF in the range adjacent to “reduced,” long defined as “preserved” but lately categorized as “mid-range.”

But the FDA did not get so specific. In granting the expanded indication, which Novartis announced Feb. 16 in a press release, the agency accommodated the Dec. 15 majority recommendation of its Cardiovascular and Renal Drugs Advisory Committee that the PARAGON-HF trial “provided sufficient evidence to support” an indication beyond HFrEF.

The nature of the PARAGON-HF trial, along with detailed discussion among committee members after their vote tally, made it clear that the 12-to-1 majority favored an indication that would include clinically appropriate patients with “below normal” LVEF.

PARAGON-HF had assigned more than 4,800 patients whose LVEF was 45% or higher and were in NYHA class 2-4 to receive sacubitril/valsartan or valsartan only. Those taking the combo drug showed a 13% drop in risk for HF hospitalization or cardiovascular deaths over an average of 3 years, which narrowly missed significance (P = .059).

But a subgroup analysis garnered attention for its hint of benefit for patients with “mid-range” LVEF, in this case, below the median of 57%. The finding was supported by a later PARAGON-HF and PARADIGM-HF meta-analysis that pointed to a significant benefit for patients with HFpEF at its lowest LVEF levels, especially in women.

The expanded approval “is a significant advancement, providing a treatment to many patients who were not eligible for treatment before, because their ejection fraction was above the region we normally considered reduced,” Scott Solomon, MD, of Brigham and Women’s Hospital, Boston, said in the Novartis press release. “We can now offer a treatment to a wider range of patients who have an LVEF below normal,” added Dr. Solomon, PARAGON-HF executive committee cochair.

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

The Food and Drug Administration has approved a groundbreaking expanded indication for sacubitril/valsartan (Entresto), making it the first drug in the United States indicated for chronic heart failure not specifically characterized by ejection fraction.

The new labeling, as provided by Novartis, grants physicians a good deal of discretion in prescribing sacubitril/valsartan for patients with HF beyond those with HF and reduced ejection fraction (HFrEF), for which the drug was approved in 2015 primarily on the basis of the PARADIGM-HF trial.

The indication now reads, “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure. Benefits are most clearly evident in patients with left ventricular ejection fraction (LVEF) below normal.”

Of note, the labeling cautions that “LVEF is a variable measure, so use clinical judgment in deciding whom to treat.”

The expanded indication essentially extends the sacubitril/valsartan option to many patients with HF and preserved LVEF (HFpEF), who in practice are most likely to have an LVEF in the range adjacent to “reduced,” long defined as “preserved” but lately categorized as “mid-range.”

But the FDA did not get so specific. In granting the expanded indication, which Novartis announced Feb. 16 in a press release, the agency accommodated the Dec. 15 majority recommendation of its Cardiovascular and Renal Drugs Advisory Committee that the PARAGON-HF trial “provided sufficient evidence to support” an indication beyond HFrEF.

The nature of the PARAGON-HF trial, along with detailed discussion among committee members after their vote tally, made it clear that the 12-to-1 majority favored an indication that would include clinically appropriate patients with “below normal” LVEF.

PARAGON-HF had assigned more than 4,800 patients whose LVEF was 45% or higher and were in NYHA class 2-4 to receive sacubitril/valsartan or valsartan only. Those taking the combo drug showed a 13% drop in risk for HF hospitalization or cardiovascular deaths over an average of 3 years, which narrowly missed significance (P = .059).

But a subgroup analysis garnered attention for its hint of benefit for patients with “mid-range” LVEF, in this case, below the median of 57%. The finding was supported by a later PARAGON-HF and PARADIGM-HF meta-analysis that pointed to a significant benefit for patients with HFpEF at its lowest LVEF levels, especially in women.

The expanded approval “is a significant advancement, providing a treatment to many patients who were not eligible for treatment before, because their ejection fraction was above the region we normally considered reduced,” Scott Solomon, MD, of Brigham and Women’s Hospital, Boston, said in the Novartis press release. “We can now offer a treatment to a wider range of patients who have an LVEF below normal,” added Dr. Solomon, PARAGON-HF executive committee cochair.

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

The Food and Drug Administration has approved a groundbreaking expanded indication for sacubitril/valsartan (Entresto), making it the first drug in the United States indicated for chronic heart failure not specifically characterized by ejection fraction.

The new labeling, as provided by Novartis, grants physicians a good deal of discretion in prescribing sacubitril/valsartan for patients with HF beyond those with HF and reduced ejection fraction (HFrEF), for which the drug was approved in 2015 primarily on the basis of the PARADIGM-HF trial.

The indication now reads, “to reduce the risk of cardiovascular death and hospitalization for heart failure in adult patients with chronic heart failure. Benefits are most clearly evident in patients with left ventricular ejection fraction (LVEF) below normal.”

Of note, the labeling cautions that “LVEF is a variable measure, so use clinical judgment in deciding whom to treat.”

The expanded indication essentially extends the sacubitril/valsartan option to many patients with HF and preserved LVEF (HFpEF), who in practice are most likely to have an LVEF in the range adjacent to “reduced,” long defined as “preserved” but lately categorized as “mid-range.”

But the FDA did not get so specific. In granting the expanded indication, which Novartis announced Feb. 16 in a press release, the agency accommodated the Dec. 15 majority recommendation of its Cardiovascular and Renal Drugs Advisory Committee that the PARAGON-HF trial “provided sufficient evidence to support” an indication beyond HFrEF.

The nature of the PARAGON-HF trial, along with detailed discussion among committee members after their vote tally, made it clear that the 12-to-1 majority favored an indication that would include clinically appropriate patients with “below normal” LVEF.

PARAGON-HF had assigned more than 4,800 patients whose LVEF was 45% or higher and were in NYHA class 2-4 to receive sacubitril/valsartan or valsartan only. Those taking the combo drug showed a 13% drop in risk for HF hospitalization or cardiovascular deaths over an average of 3 years, which narrowly missed significance (P = .059).

But a subgroup analysis garnered attention for its hint of benefit for patients with “mid-range” LVEF, in this case, below the median of 57%. The finding was supported by a later PARAGON-HF and PARADIGM-HF meta-analysis that pointed to a significant benefit for patients with HFpEF at its lowest LVEF levels, especially in women.

The expanded approval “is a significant advancement, providing a treatment to many patients who were not eligible for treatment before, because their ejection fraction was above the region we normally considered reduced,” Scott Solomon, MD, of Brigham and Women’s Hospital, Boston, said in the Novartis press release. “We can now offer a treatment to a wider range of patients who have an LVEF below normal,” added Dr. Solomon, PARAGON-HF executive committee cochair.

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

Survival rates for patients with pulmonary arterial hypertension associated with connective tissue diseases have improved significantly in recent years, and there is growing evidence that treatments for idiopathic pulmonary arterial hypertension can also benefit this group.

In an article published online Feb. 3, 2021, in Arthritis & Rheumatology, researchers report the outcomes of a meta-analysis to explore the effect of more modern pulmonary arterial hypertension treatments on patients with conditions such as systemic sclerosis.

First author Dinesh Khanna, MBBS, MSc, of the division of rheumatology at the University of Michigan, Ann Arbor, said in an interview that connective tissue disease–associated pulmonary arterial hypertension (CTD-PAH) was a leading cause of death, but earlier clinical trials had found poor outcomes in patients with CTD, compared with those with idiopathic PAH.

“Recent clinical trial data show that aggressive, up-front PAH treatments have better outcomes in those with CTD-PAH, and we wanted to explore these observations carefully in a systematic review and meta-analysis,” Dr. Khanna said.

The analysis included 11 randomized, controlled trials, involving 4,329 patients with PAH (1,267 with CTD), and 19 registries with a total of 9,739 patients with PAH, including 4,008 with CTD. Trials were required to report long-term clinical outcomes with a median enrollment time of greater than 6 months, and outcomes measured between 3-6 months after the patients started treatment.

Patients with CTDs had an older mean age and a lower 6-minute walk distance than did those with idiopathic PAH.

Five randomized, controlled trials – involving 3,172 patients, 941 of whom had a CTD – found that additional PAH treatment was associated with a 36% reduction in the risk of morbidity or mortality events, compared with controls both in the overall PAH group and in those with CTD.

Additional therapy was also associated with a 34.6-meter increase in 6-minute walk distance in the general PAH population, and a 20.4-meter increase in those with CTD.

The authors commented that the smaller improvement in 6-minute walk distance among patients with CTD may be influenced by comorbidities such as musculoskeletal involvement that would be independent of their cardiopulmonary function.
 

Differential patient survival among PAH etiologies

“Our meta-analysis of RCTs demonstrated that patients with CTD-PAH derive a clinically significant benefit from currently available PAH therapies which, in many patients, comprised the addition of a drug targeting a second or third pathway involved in the pathophysiology of PAH,” the authors wrote.

When researchers analyzed data from nine registries that included a wide range of PAH etiologies, they found the overall survival rates were lower among patients with CTD, compared with the overall population. The analysis also suggested that patients with systemic sclerosis and PAH had lower survival rates than did those with systemic lupus erythematosus.

Dr. Khanna said this may relate to different pathophysiology of PAH in patients with CTDs, but could also be a reflection of other differences, such as older age and the involvement of other comorbidities, including lung fibrosis and heart involvement.

Data across all 19 registries also showed that survival rates among those with CTD were higher in registries where more than 50% of the registry study period was during or after 2010, compared with registries where 50% or more of the study period was before 2010.

The authors suggested the differences in survival rates may relate to increased screening for PAH, particularly among people with CTDs. They noted that increased screening leads to earlier diagnosis, which could introduce a lead-time bias such that later registries would have younger participants with less severe disease. However, their analysis found that the later registries had older patients but also with less severe disease, and they suggested that it wasn’t possible to determine if lead-time bias was playing a role in their results.

Improvements in treatment options could also account for differences in survival over time, although the authors commented that only six registries in the study included patients from 2015 or later, when currently available treatments came into use and early combination therapy was used more.

“These data also support the 2018 World Symposium on Pulmonary Hypertension recommendations to initiate up-front combination pulmonary arterial hypertension therapy in majority of cases with CTD-PAH,” Dr. Khanna said.

‘Still have to be aggressive at identifying the high-risk patients’

Commenting on the findings, Virginia Steen, MD, of the division of rheumatology at Georgetown University, Washington, said clinicians were finally seeing some significant changes over time in scleroderma-associated PAH.

“Although some of it may be just early diagnosis, I think that the combination of early diagnosis and more aggressive treatment with combination medication is definitely making a difference,” Dr. Steen said in an interview. “The bottom line is that we as rheumatologists still have to be aggressive at identifying the high-risk patients, making an early diagnosis, and working with our pulmonary hypertension colleagues and aggressively treating these patients so we can make a long-term difference.”

The authors of an accompanying editorial said the meta-analysis’ findings showed the positive impact of early combination therapy and early diagnosis through proactive screening.

“It is notable because the present analysis again confirms that outcomes are worse in CTD-PAH than in idiopathic or familial forms of PAH, the impact of treatments should no longer be regarded as insignificant,” the editorial’s authors wrote. “This is a practice changing observation, especially now that many of the drugs are available in generic formulations and so the cost of modern PAH treatment has fallen at the same time as its true value is convincingly demonstrated.”

They also argued there was strong evidence for the value of combination therapies, both for PAH-targeted drugs used in combination and concurrent use of immunosuppression and drugs specifically for PAH in some patients with CTD-PAH.

However, they pointed out that not all treatments for idiopathic PAH were suitable for patients with CTDs, highlighting the example of anticoagulation that can improve survival in the first but worsen it in the second.

The study was funded by Actelion. Six authors declared funding and grants from the pharmaceutical sector, including the study sponsor, and three authors were employees of Actelion.

Survival rates for patients with pulmonary arterial hypertension associated with connective tissue diseases have improved significantly in recent years, and there is growing evidence that treatments for idiopathic pulmonary arterial hypertension can also benefit this group.

In an article published online Feb. 3, 2021, in Arthritis & Rheumatology, researchers report the outcomes of a meta-analysis to explore the effect of more modern pulmonary arterial hypertension treatments on patients with conditions such as systemic sclerosis.

First author Dinesh Khanna, MBBS, MSc, of the division of rheumatology at the University of Michigan, Ann Arbor, said in an interview that connective tissue disease–associated pulmonary arterial hypertension (CTD-PAH) was a leading cause of death, but earlier clinical trials had found poor outcomes in patients with CTD, compared with those with idiopathic PAH.

“Recent clinical trial data show that aggressive, up-front PAH treatments have better outcomes in those with CTD-PAH, and we wanted to explore these observations carefully in a systematic review and meta-analysis,” Dr. Khanna said.

The analysis included 11 randomized, controlled trials, involving 4,329 patients with PAH (1,267 with CTD), and 19 registries with a total of 9,739 patients with PAH, including 4,008 with CTD. Trials were required to report long-term clinical outcomes with a median enrollment time of greater than 6 months, and outcomes measured between 3-6 months after the patients started treatment.

Patients with CTDs had an older mean age and a lower 6-minute walk distance than did those with idiopathic PAH.

Five randomized, controlled trials – involving 3,172 patients, 941 of whom had a CTD – found that additional PAH treatment was associated with a 36% reduction in the risk of morbidity or mortality events, compared with controls both in the overall PAH group and in those with CTD.

Additional therapy was also associated with a 34.6-meter increase in 6-minute walk distance in the general PAH population, and a 20.4-meter increase in those with CTD.

The authors commented that the smaller improvement in 6-minute walk distance among patients with CTD may be influenced by comorbidities such as musculoskeletal involvement that would be independent of their cardiopulmonary function.
 

Differential patient survival among PAH etiologies

“Our meta-analysis of RCTs demonstrated that patients with CTD-PAH derive a clinically significant benefit from currently available PAH therapies which, in many patients, comprised the addition of a drug targeting a second or third pathway involved in the pathophysiology of PAH,” the authors wrote.

When researchers analyzed data from nine registries that included a wide range of PAH etiologies, they found the overall survival rates were lower among patients with CTD, compared with the overall population. The analysis also suggested that patients with systemic sclerosis and PAH had lower survival rates than did those with systemic lupus erythematosus.

Dr. Khanna said this may relate to different pathophysiology of PAH in patients with CTDs, but could also be a reflection of other differences, such as older age and the involvement of other comorbidities, including lung fibrosis and heart involvement.

Data across all 19 registries also showed that survival rates among those with CTD were higher in registries where more than 50% of the registry study period was during or after 2010, compared with registries where 50% or more of the study period was before 2010.

The authors suggested the differences in survival rates may relate to increased screening for PAH, particularly among people with CTDs. They noted that increased screening leads to earlier diagnosis, which could introduce a lead-time bias such that later registries would have younger participants with less severe disease. However, their analysis found that the later registries had older patients but also with less severe disease, and they suggested that it wasn’t possible to determine if lead-time bias was playing a role in their results.

Improvements in treatment options could also account for differences in survival over time, although the authors commented that only six registries in the study included patients from 2015 or later, when currently available treatments came into use and early combination therapy was used more.

“These data also support the 2018 World Symposium on Pulmonary Hypertension recommendations to initiate up-front combination pulmonary arterial hypertension therapy in majority of cases with CTD-PAH,” Dr. Khanna said.

‘Still have to be aggressive at identifying the high-risk patients’

Commenting on the findings, Virginia Steen, MD, of the division of rheumatology at Georgetown University, Washington, said clinicians were finally seeing some significant changes over time in scleroderma-associated PAH.

“Although some of it may be just early diagnosis, I think that the combination of early diagnosis and more aggressive treatment with combination medication is definitely making a difference,” Dr. Steen said in an interview. “The bottom line is that we as rheumatologists still have to be aggressive at identifying the high-risk patients, making an early diagnosis, and working with our pulmonary hypertension colleagues and aggressively treating these patients so we can make a long-term difference.”

The authors of an accompanying editorial said the meta-analysis’ findings showed the positive impact of early combination therapy and early diagnosis through proactive screening.

“It is notable because the present analysis again confirms that outcomes are worse in CTD-PAH than in idiopathic or familial forms of PAH, the impact of treatments should no longer be regarded as insignificant,” the editorial’s authors wrote. “This is a practice changing observation, especially now that many of the drugs are available in generic formulations and so the cost of modern PAH treatment has fallen at the same time as its true value is convincingly demonstrated.”

They also argued there was strong evidence for the value of combination therapies, both for PAH-targeted drugs used in combination and concurrent use of immunosuppression and drugs specifically for PAH in some patients with CTD-PAH.

However, they pointed out that not all treatments for idiopathic PAH were suitable for patients with CTDs, highlighting the example of anticoagulation that can improve survival in the first but worsen it in the second.

The study was funded by Actelion. Six authors declared funding and grants from the pharmaceutical sector, including the study sponsor, and three authors were employees of Actelion.

Survival rates for patients with pulmonary arterial hypertension associated with connective tissue diseases have improved significantly in recent years, and there is growing evidence that treatments for idiopathic pulmonary arterial hypertension can also benefit this group.

In an article published online Feb. 3, 2021, in Arthritis & Rheumatology, researchers report the outcomes of a meta-analysis to explore the effect of more modern pulmonary arterial hypertension treatments on patients with conditions such as systemic sclerosis.

First author Dinesh Khanna, MBBS, MSc, of the division of rheumatology at the University of Michigan, Ann Arbor, said in an interview that connective tissue disease–associated pulmonary arterial hypertension (CTD-PAH) was a leading cause of death, but earlier clinical trials had found poor outcomes in patients with CTD, compared with those with idiopathic PAH.

“Recent clinical trial data show that aggressive, up-front PAH treatments have better outcomes in those with CTD-PAH, and we wanted to explore these observations carefully in a systematic review and meta-analysis,” Dr. Khanna said.

The analysis included 11 randomized, controlled trials, involving 4,329 patients with PAH (1,267 with CTD), and 19 registries with a total of 9,739 patients with PAH, including 4,008 with CTD. Trials were required to report long-term clinical outcomes with a median enrollment time of greater than 6 months, and outcomes measured between 3-6 months after the patients started treatment.

Patients with CTDs had an older mean age and a lower 6-minute walk distance than did those with idiopathic PAH.

Five randomized, controlled trials – involving 3,172 patients, 941 of whom had a CTD – found that additional PAH treatment was associated with a 36% reduction in the risk of morbidity or mortality events, compared with controls both in the overall PAH group and in those with CTD.

Additional therapy was also associated with a 34.6-meter increase in 6-minute walk distance in the general PAH population, and a 20.4-meter increase in those with CTD.

The authors commented that the smaller improvement in 6-minute walk distance among patients with CTD may be influenced by comorbidities such as musculoskeletal involvement that would be independent of their cardiopulmonary function.
 

Differential patient survival among PAH etiologies

“Our meta-analysis of RCTs demonstrated that patients with CTD-PAH derive a clinically significant benefit from currently available PAH therapies which, in many patients, comprised the addition of a drug targeting a second or third pathway involved in the pathophysiology of PAH,” the authors wrote.

When researchers analyzed data from nine registries that included a wide range of PAH etiologies, they found the overall survival rates were lower among patients with CTD, compared with the overall population. The analysis also suggested that patients with systemic sclerosis and PAH had lower survival rates than did those with systemic lupus erythematosus.

Dr. Khanna said this may relate to different pathophysiology of PAH in patients with CTDs, but could also be a reflection of other differences, such as older age and the involvement of other comorbidities, including lung fibrosis and heart involvement.

Data across all 19 registries also showed that survival rates among those with CTD were higher in registries where more than 50% of the registry study period was during or after 2010, compared with registries where 50% or more of the study period was before 2010.

The authors suggested the differences in survival rates may relate to increased screening for PAH, particularly among people with CTDs. They noted that increased screening leads to earlier diagnosis, which could introduce a lead-time bias such that later registries would have younger participants with less severe disease. However, their analysis found that the later registries had older patients but also with less severe disease, and they suggested that it wasn’t possible to determine if lead-time bias was playing a role in their results.

Improvements in treatment options could also account for differences in survival over time, although the authors commented that only six registries in the study included patients from 2015 or later, when currently available treatments came into use and early combination therapy was used more.

“These data also support the 2018 World Symposium on Pulmonary Hypertension recommendations to initiate up-front combination pulmonary arterial hypertension therapy in majority of cases with CTD-PAH,” Dr. Khanna said.

‘Still have to be aggressive at identifying the high-risk patients’

Commenting on the findings, Virginia Steen, MD, of the division of rheumatology at Georgetown University, Washington, said clinicians were finally seeing some significant changes over time in scleroderma-associated PAH.

“Although some of it may be just early diagnosis, I think that the combination of early diagnosis and more aggressive treatment with combination medication is definitely making a difference,” Dr. Steen said in an interview. “The bottom line is that we as rheumatologists still have to be aggressive at identifying the high-risk patients, making an early diagnosis, and working with our pulmonary hypertension colleagues and aggressively treating these patients so we can make a long-term difference.”

The authors of an accompanying editorial said the meta-analysis’ findings showed the positive impact of early combination therapy and early diagnosis through proactive screening.

“It is notable because the present analysis again confirms that outcomes are worse in CTD-PAH than in idiopathic or familial forms of PAH, the impact of treatments should no longer be regarded as insignificant,” the editorial’s authors wrote. “This is a practice changing observation, especially now that many of the drugs are available in generic formulations and so the cost of modern PAH treatment has fallen at the same time as its true value is convincingly demonstrated.”

They also argued there was strong evidence for the value of combination therapies, both for PAH-targeted drugs used in combination and concurrent use of immunosuppression and drugs specifically for PAH in some patients with CTD-PAH.

However, they pointed out that not all treatments for idiopathic PAH were suitable for patients with CTDs, highlighting the example of anticoagulation that can improve survival in the first but worsen it in the second.

The study was funded by Actelion. Six authors declared funding and grants from the pharmaceutical sector, including the study sponsor, and three authors were employees of Actelion.