Ted Bosworth

Several relatively large real-world analyses of Janus kinase inhibitors (JAKi) in patients with rheumatoid arthritis appear to show that the oral small-molecule drugs are discontinued and retained at rates similar to or better than biologic disease-modifying antirheumatic drugs (bDMARDs), including tumor necrosis factor inhibitors (TNFi), according to studies presented at the annual meeting of the Canadian Rheumatology Association.

The findings of these studies, although conducted prior to the Food and Drug Administration’s September 2021 announcement of a boxed warning for JAKi, do not lend support to the warning’s message of higher risks of major adverse cardiovascular events (MACE), blood clots, cancer, and death associated with JAKi.

In one study, discontinuation of JAKi-class drugs was less common than discontinuation of bDMARD-class drugs, including tumor necrosis factor inhibitors (TNFi), according to a multicenter team of investigators led by Janet Pope, MD, a professor in the division of rheumatology at the University of Western Ontario, London.

The greater durability of the JAKi relative to TNFi “seem to be driven by a greater loss of efficacy in bDMARDs over time,” reported Samir Magdy Iskander, a medical student at the university, who presented the data.
 

JAKi rival bDMARDs for long-term retention

In a separate but larger analysis, the retention rates with the JAKi tofacitinib (Xeljanz) and TNFi in two RA registries in Canada were about the same after a mean follow-up of 23.2 months (36.9% vs. 37.5%), but the tofacitinib group was at a relative disadvantage. Relative to the bDMARD group, patients taking JAKi were more likely to have had prior treatment with a bDMARD (66.9% vs. 33.9%), to have a higher median baseline Clinical Disease Activity Index (CDAI) score (22.1 vs. 20.0; P < .05), and to be older (59.5 vs. 57.6 years).

In this study, 1,318 patients with RA enrolled in the Ontario Best Practices Research Initiative (OBRI) or a Quebec cohort called RHUMADATA were evaluated, reported Mohammad Movahedi, MD, PhD, of the Institute of Health Policy, Management, and Evaluation at the University of Toronto.

“We have not yet analyzed the reasons for discontinuation, but the data show that retention is about the same, meaning that selection of one agent over the other should be tailored according to patient characteristics,” Dr. Movahedi said.

Reasons for discontinuation were presented in the other observational study, which included 333 adult patients with RA from two centers in Ontario. The discontinuation rate for adverse events was approximately 20% in both groups (HR, 1.0005; P = .98). However, the discontinuation rate for lack of efficacy favored the JAKi, reaching statistical significance.
 

TNFi failure for lack of efficacy is higher

“For lack of efficacy, the discontinuation rate was about 35% lower on the JAKi [HR, 0.6543; P = .029],” Mr. Iskander reported. Relative to those taking a TNFi, those on a JAKi demonstrated “greater durability regardless of gender, age, disease duration, and prior lines of therapy.”

In a population of patients who have not achieved an adequate response to conventional synthetic DMARDs (csDMARDs), which describes the study population from the two Ontario centers, JAKi “may be considered as a preferable method of treatment,” Mr. Iskander said.

Pointing out that many clinicians have interpreted the boxed warning as a relative contraindication for use of JAKi as first-line therapy in patients with an inadequate response to csDMARDs, Marinka Twilt, MD, PhD, the moderator of the scientific session where these data were presented, questioned the conclusion. In the boxed warning, clinicians and patients are advised to consider an increased risk of serious infections, malignancy, and cardiovascular-related mortality in individuals older than 50 years.

In response, Mr. Iskander said that the data were collected and analyzed prior to the change in labeling. He acknowledged that this study was not designed to capture long-term risks, such as cardiovascular disease or malignancy. In this analysis, the safety and tolerability of JAKi and bDMARDs appeared comparable.
 

NEJM published study leading to boxed warning

Just a week prior to the CRA annual meeting, the New England Journal of Medicine published an FDA-mandated postmarketing trial of tofacitinib that was used by the agency to justify the boxed warning for JAKi with indications for artitis and other inflammatory diseases. In that open-label trial, more than 4,000 patients aged 50 years or older with at least one additional cardiovascular risk factor were randomized to 5 mg tofacitinib twice daily, 10 mg tofacitinib twice daily, or a TNFi (adalimumab or etanercept).

The efficacy of the therapies was similar, but tofacitinib failed to meet predefined noninferiority criteria for the co–primary endpoints of MACE or cancer (excluding nonmelanoma skin cancer). For tofacitinib relative to TNFi, the hazard ratio was 1.33 for MACE and 1.48 for cancers. The JAKi was also associated with higher incidences of opportunistic infections.

Mr. Iskander noted that Canadian clinical practice guidelines currently identify JAKi as a reasonable first-line alternative to bDMARDs after inadequate response to csDMARDs. While his data support that position, Dr. Twilt indicated that the benefit-to-risk ratio of JAKi might need recalculation based on the data that led the FDA to issue its boxed warning. She questioned whether the language regarding the relative role of JAKi and bDMARDs will change in coming RA guideline revisions.

Dr. Iskander reported no potential conflicts of interest. Dr. Movahedi did not list any personal conflicts of interest but acknowledged that OBRI received unrestricted grants from a variety of pharmaceutical companies, including those that manufacture bDMARDs and JAKi. Dr. Twilt reported no potential conflicts of interest.

Several relatively large real-world analyses of Janus kinase inhibitors (JAKi) in patients with rheumatoid arthritis appear to show that the oral small-molecule drugs are discontinued and retained at rates similar to or better than biologic disease-modifying antirheumatic drugs (bDMARDs), including tumor necrosis factor inhibitors (TNFi), according to studies presented at the annual meeting of the Canadian Rheumatology Association.

The findings of these studies, although conducted prior to the Food and Drug Administration’s September 2021 announcement of a boxed warning for JAKi, do not lend support to the warning’s message of higher risks of major adverse cardiovascular events (MACE), blood clots, cancer, and death associated with JAKi.

In one study, discontinuation of JAKi-class drugs was less common than discontinuation of bDMARD-class drugs, including tumor necrosis factor inhibitors (TNFi), according to a multicenter team of investigators led by Janet Pope, MD, a professor in the division of rheumatology at the University of Western Ontario, London.

The greater durability of the JAKi relative to TNFi “seem to be driven by a greater loss of efficacy in bDMARDs over time,” reported Samir Magdy Iskander, a medical student at the university, who presented the data.
 

JAKi rival bDMARDs for long-term retention

In a separate but larger analysis, the retention rates with the JAKi tofacitinib (Xeljanz) and TNFi in two RA registries in Canada were about the same after a mean follow-up of 23.2 months (36.9% vs. 37.5%), but the tofacitinib group was at a relative disadvantage. Relative to the bDMARD group, patients taking JAKi were more likely to have had prior treatment with a bDMARD (66.9% vs. 33.9%), to have a higher median baseline Clinical Disease Activity Index (CDAI) score (22.1 vs. 20.0; P < .05), and to be older (59.5 vs. 57.6 years).

In this study, 1,318 patients with RA enrolled in the Ontario Best Practices Research Initiative (OBRI) or a Quebec cohort called RHUMADATA were evaluated, reported Mohammad Movahedi, MD, PhD, of the Institute of Health Policy, Management, and Evaluation at the University of Toronto.

“We have not yet analyzed the reasons for discontinuation, but the data show that retention is about the same, meaning that selection of one agent over the other should be tailored according to patient characteristics,” Dr. Movahedi said.

Reasons for discontinuation were presented in the other observational study, which included 333 adult patients with RA from two centers in Ontario. The discontinuation rate for adverse events was approximately 20% in both groups (HR, 1.0005; P = .98). However, the discontinuation rate for lack of efficacy favored the JAKi, reaching statistical significance.
 

TNFi failure for lack of efficacy is higher

“For lack of efficacy, the discontinuation rate was about 35% lower on the JAKi [HR, 0.6543; P = .029],” Mr. Iskander reported. Relative to those taking a TNFi, those on a JAKi demonstrated “greater durability regardless of gender, age, disease duration, and prior lines of therapy.”

In a population of patients who have not achieved an adequate response to conventional synthetic DMARDs (csDMARDs), which describes the study population from the two Ontario centers, JAKi “may be considered as a preferable method of treatment,” Mr. Iskander said.

Pointing out that many clinicians have interpreted the boxed warning as a relative contraindication for use of JAKi as first-line therapy in patients with an inadequate response to csDMARDs, Marinka Twilt, MD, PhD, the moderator of the scientific session where these data were presented, questioned the conclusion. In the boxed warning, clinicians and patients are advised to consider an increased risk of serious infections, malignancy, and cardiovascular-related mortality in individuals older than 50 years.

In response, Mr. Iskander said that the data were collected and analyzed prior to the change in labeling. He acknowledged that this study was not designed to capture long-term risks, such as cardiovascular disease or malignancy. In this analysis, the safety and tolerability of JAKi and bDMARDs appeared comparable.
 

NEJM published study leading to boxed warning

Just a week prior to the CRA annual meeting, the New England Journal of Medicine published an FDA-mandated postmarketing trial of tofacitinib that was used by the agency to justify the boxed warning for JAKi with indications for artitis and other inflammatory diseases. In that open-label trial, more than 4,000 patients aged 50 years or older with at least one additional cardiovascular risk factor were randomized to 5 mg tofacitinib twice daily, 10 mg tofacitinib twice daily, or a TNFi (adalimumab or etanercept).

The efficacy of the therapies was similar, but tofacitinib failed to meet predefined noninferiority criteria for the co–primary endpoints of MACE or cancer (excluding nonmelanoma skin cancer). For tofacitinib relative to TNFi, the hazard ratio was 1.33 for MACE and 1.48 for cancers. The JAKi was also associated with higher incidences of opportunistic infections.

Mr. Iskander noted that Canadian clinical practice guidelines currently identify JAKi as a reasonable first-line alternative to bDMARDs after inadequate response to csDMARDs. While his data support that position, Dr. Twilt indicated that the benefit-to-risk ratio of JAKi might need recalculation based on the data that led the FDA to issue its boxed warning. She questioned whether the language regarding the relative role of JAKi and bDMARDs will change in coming RA guideline revisions.

Dr. Iskander reported no potential conflicts of interest. Dr. Movahedi did not list any personal conflicts of interest but acknowledged that OBRI received unrestricted grants from a variety of pharmaceutical companies, including those that manufacture bDMARDs and JAKi. Dr. Twilt reported no potential conflicts of interest.

Several relatively large real-world analyses of Janus kinase inhibitors (JAKi) in patients with rheumatoid arthritis appear to show that the oral small-molecule drugs are discontinued and retained at rates similar to or better than biologic disease-modifying antirheumatic drugs (bDMARDs), including tumor necrosis factor inhibitors (TNFi), according to studies presented at the annual meeting of the Canadian Rheumatology Association.

The findings of these studies, although conducted prior to the Food and Drug Administration’s September 2021 announcement of a boxed warning for JAKi, do not lend support to the warning’s message of higher risks of major adverse cardiovascular events (MACE), blood clots, cancer, and death associated with JAKi.

In one study, discontinuation of JAKi-class drugs was less common than discontinuation of bDMARD-class drugs, including tumor necrosis factor inhibitors (TNFi), according to a multicenter team of investigators led by Janet Pope, MD, a professor in the division of rheumatology at the University of Western Ontario, London.

The greater durability of the JAKi relative to TNFi “seem to be driven by a greater loss of efficacy in bDMARDs over time,” reported Samir Magdy Iskander, a medical student at the university, who presented the data.
 

JAKi rival bDMARDs for long-term retention

In a separate but larger analysis, the retention rates with the JAKi tofacitinib (Xeljanz) and TNFi in two RA registries in Canada were about the same after a mean follow-up of 23.2 months (36.9% vs. 37.5%), but the tofacitinib group was at a relative disadvantage. Relative to the bDMARD group, patients taking JAKi were more likely to have had prior treatment with a bDMARD (66.9% vs. 33.9%), to have a higher median baseline Clinical Disease Activity Index (CDAI) score (22.1 vs. 20.0; P < .05), and to be older (59.5 vs. 57.6 years).

In this study, 1,318 patients with RA enrolled in the Ontario Best Practices Research Initiative (OBRI) or a Quebec cohort called RHUMADATA were evaluated, reported Mohammad Movahedi, MD, PhD, of the Institute of Health Policy, Management, and Evaluation at the University of Toronto.

“We have not yet analyzed the reasons for discontinuation, but the data show that retention is about the same, meaning that selection of one agent over the other should be tailored according to patient characteristics,” Dr. Movahedi said.

Reasons for discontinuation were presented in the other observational study, which included 333 adult patients with RA from two centers in Ontario. The discontinuation rate for adverse events was approximately 20% in both groups (HR, 1.0005; P = .98). However, the discontinuation rate for lack of efficacy favored the JAKi, reaching statistical significance.
 

TNFi failure for lack of efficacy is higher

“For lack of efficacy, the discontinuation rate was about 35% lower on the JAKi [HR, 0.6543; P = .029],” Mr. Iskander reported. Relative to those taking a TNFi, those on a JAKi demonstrated “greater durability regardless of gender, age, disease duration, and prior lines of therapy.”

In a population of patients who have not achieved an adequate response to conventional synthetic DMARDs (csDMARDs), which describes the study population from the two Ontario centers, JAKi “may be considered as a preferable method of treatment,” Mr. Iskander said.

Pointing out that many clinicians have interpreted the boxed warning as a relative contraindication for use of JAKi as first-line therapy in patients with an inadequate response to csDMARDs, Marinka Twilt, MD, PhD, the moderator of the scientific session where these data were presented, questioned the conclusion. In the boxed warning, clinicians and patients are advised to consider an increased risk of serious infections, malignancy, and cardiovascular-related mortality in individuals older than 50 years.

In response, Mr. Iskander said that the data were collected and analyzed prior to the change in labeling. He acknowledged that this study was not designed to capture long-term risks, such as cardiovascular disease or malignancy. In this analysis, the safety and tolerability of JAKi and bDMARDs appeared comparable.
 

NEJM published study leading to boxed warning

Just a week prior to the CRA annual meeting, the New England Journal of Medicine published an FDA-mandated postmarketing trial of tofacitinib that was used by the agency to justify the boxed warning for JAKi with indications for artitis and other inflammatory diseases. In that open-label trial, more than 4,000 patients aged 50 years or older with at least one additional cardiovascular risk factor were randomized to 5 mg tofacitinib twice daily, 10 mg tofacitinib twice daily, or a TNFi (adalimumab or etanercept).

The efficacy of the therapies was similar, but tofacitinib failed to meet predefined noninferiority criteria for the co–primary endpoints of MACE or cancer (excluding nonmelanoma skin cancer). For tofacitinib relative to TNFi, the hazard ratio was 1.33 for MACE and 1.48 for cancers. The JAKi was also associated with higher incidences of opportunistic infections.

Mr. Iskander noted that Canadian clinical practice guidelines currently identify JAKi as a reasonable first-line alternative to bDMARDs after inadequate response to csDMARDs. While his data support that position, Dr. Twilt indicated that the benefit-to-risk ratio of JAKi might need recalculation based on the data that led the FDA to issue its boxed warning. She questioned whether the language regarding the relative role of JAKi and bDMARDs will change in coming RA guideline revisions.

Dr. Iskander reported no potential conflicts of interest. Dr. Movahedi did not list any personal conflicts of interest but acknowledged that OBRI received unrestricted grants from a variety of pharmaceutical companies, including those that manufacture bDMARDs and JAKi. Dr. Twilt reported no potential conflicts of interest.

Current selection criteria for autologous hematopoietic stem cell transplant (AHSCT) in patients with rapidly progressing systemic sclerosis were validated in a study presented at the annual meeting of the Canadian Rheumatology Association.

The study, which associated AHSCT with improvement in overall survival and an acceptable risk of adverse events, “provides valuable real-world, long-term data pertaining to key clinical outcomes to support the use of AHSCT in patients with rapidly progressing systemic sclerosis,” reported Nancy Maltez, MD, a rheumatologist and clinical investigator who is on the faculty of the University of Ottawa.

Fnaq / Wikimedia Commons / CC BY-SA 4.0

The prospective study enrolled 85 patients in Canada and 41 patients in France with rapidly progressing systemic sclerosis. The patients in both countries were enrolled with the same eligibility criteria for AHSCT, but patients in France underwent AHSCT while the patients in Canada were treated with conventional therapies, such as cyclophosphamide.

On the primary outcome of overall survival, the Kaplan-Meier curve split almost immediately in favor of AHSCT. At 4 years, more than 25% of patients in the conventional therapy group had died versus less than 5% of those who underwent AHSCT. Although the mortality curve did slope downwards in the AHSCT group over the subsequent 6 years of follow-up, it largely paralleled and remained superior to convention therapy.
 

About 50% survival advantage seen for AHSCT

In this nonrandomized study, the statistical survival advantage of AHSCT was not provided, but the survival graph showed about 75% survival at 8 years of follow-up in the AHSCT group, compared with about 50% survival in the conventional-therapy group.

Many of the secondary outcomes, including those evaluating skin involvement, preservation of lung function, and absence of renal complications also favored AHSCT, according to Dr. Maltez.

On the modified Rodnan skin score, a significant difference (P < .001) observed at 12 months was sustained at 36 months, when the score was 4.48 points lower among patients treated with AHSCT. The difference in forced vital capacity (FVC) was about 10% higher (P < .0001) in the AHSCT group.

Over long-term follow-up, the incidence of scleroderma renal crisis per 100 person-years was 6.02 cases in the conventional therapy group versus 0.58 cases (P < .001) in the AHSCT group. There was no significant difference in the proportion of patients in the two groups receiving a pacemaker over the course of follow-up, but the rate of new malignancies per 100 person-years was 3.71 in the conventional care group versus 0.58 (P < .001) in the AHSCT group.

Significant complications attributed to AHSCT were uncommon. This is important, because AHSCT was not uniformly well tolerated in the initial trials. The first of three randomized trials with AHSCT in progressive systemic sclerosis was published more than 10 years ago after a series of promising early phase trials. Each associated AHSCT with benefit, but patient selection appeared to be important.

In the ASSIST trial of 2011, AHSCT was associated with significant reductions in skin involvement and improvements in pulmonary function relative to cyclophosphamide, but enrollment was stopped after only 19 patients, and follow-up extended to only 2 years.

Substantial AHSCT-related mortality in ASTIS

In the second trial, called ASTIS, AHSCT was associated with a higher rate of mortality than cyclophosphamide after 1 year of follow-up, although there was a significantly greater long-term event-free survival for AHSCT when patients were followed out to 4 years. This study reinforced the need for cardiac screening because of because of concern that severe cardiac compromise contributed to the increased risk of AHSCT-related mortality.

The SCOT trial employed a high-intensity myeloablative conditioning regimen and total body irradiation prior to AHSCT. It is not clear that these contributed to improved survival, particularly because of the risk for irradiation to exacerbate complications in the lung and kidney, but AHSCT-related mortality was only 3% at 54 months. Patient enrollment criteria in this trial were also suspected of having played a role in the favorable results.

In the Canadian-French collaborative study, patients were considered eligible for AHSCT if they met the enrollment criteria used in the ASTIS trial, according to Dr. Maltez. She attributed the low rates of early mortality and relative absence of transplant-related death to the lessons learned in the published trials.

Overall, the data support the routine but selective use of AHSCT in rapidly progressing systemic sclerosis, Dr. Maltez concluded.

Maria Carolina Oliveira, MD, of the department of internal medicine at the University of São Paulo, generally agreed. A coauthor of a recent review of AHSCT for systemic sclerosis, Dr. Oliveira emphasized that patient selection is critical.

“AHSCT for systemic sclerosis has very specific inclusion criteria. Indeed, it is indicated for patients with severe and progressive disease but under two specific conditions: severe and progressive diffuse skin involvement and/or progressive interstitial lung disease,” she said in an interview.

Because of the thin line between benefit and risk according to disease subtypes and comorbidities, she said that it is important to be aware of relative contraindications and to recognize the risks of AHSCT.

At this time, and in the absence of better biomarkers to identify those most likely to benefit, “patients with other forms of severe scleroderma, such as those with pulmonary hypertension, scleroderma renal crisis, or severe cardiac involvement, for example, are not eligible,” she said.

Dr. Maltez and Dr. Oliveira reported having no potential conflicts of interest.

Current selection criteria for autologous hematopoietic stem cell transplant (AHSCT) in patients with rapidly progressing systemic sclerosis were validated in a study presented at the annual meeting of the Canadian Rheumatology Association.

The study, which associated AHSCT with improvement in overall survival and an acceptable risk of adverse events, “provides valuable real-world, long-term data pertaining to key clinical outcomes to support the use of AHSCT in patients with rapidly progressing systemic sclerosis,” reported Nancy Maltez, MD, a rheumatologist and clinical investigator who is on the faculty of the University of Ottawa.

Fnaq / Wikimedia Commons / CC BY-SA 4.0

The prospective study enrolled 85 patients in Canada and 41 patients in France with rapidly progressing systemic sclerosis. The patients in both countries were enrolled with the same eligibility criteria for AHSCT, but patients in France underwent AHSCT while the patients in Canada were treated with conventional therapies, such as cyclophosphamide.

On the primary outcome of overall survival, the Kaplan-Meier curve split almost immediately in favor of AHSCT. At 4 years, more than 25% of patients in the conventional therapy group had died versus less than 5% of those who underwent AHSCT. Although the mortality curve did slope downwards in the AHSCT group over the subsequent 6 years of follow-up, it largely paralleled and remained superior to convention therapy.
 

About 50% survival advantage seen for AHSCT

In this nonrandomized study, the statistical survival advantage of AHSCT was not provided, but the survival graph showed about 75% survival at 8 years of follow-up in the AHSCT group, compared with about 50% survival in the conventional-therapy group.

Many of the secondary outcomes, including those evaluating skin involvement, preservation of lung function, and absence of renal complications also favored AHSCT, according to Dr. Maltez.

On the modified Rodnan skin score, a significant difference (P < .001) observed at 12 months was sustained at 36 months, when the score was 4.48 points lower among patients treated with AHSCT. The difference in forced vital capacity (FVC) was about 10% higher (P < .0001) in the AHSCT group.

Over long-term follow-up, the incidence of scleroderma renal crisis per 100 person-years was 6.02 cases in the conventional therapy group versus 0.58 cases (P < .001) in the AHSCT group. There was no significant difference in the proportion of patients in the two groups receiving a pacemaker over the course of follow-up, but the rate of new malignancies per 100 person-years was 3.71 in the conventional care group versus 0.58 (P < .001) in the AHSCT group.

Significant complications attributed to AHSCT were uncommon. This is important, because AHSCT was not uniformly well tolerated in the initial trials. The first of three randomized trials with AHSCT in progressive systemic sclerosis was published more than 10 years ago after a series of promising early phase trials. Each associated AHSCT with benefit, but patient selection appeared to be important.

In the ASSIST trial of 2011, AHSCT was associated with significant reductions in skin involvement and improvements in pulmonary function relative to cyclophosphamide, but enrollment was stopped after only 19 patients, and follow-up extended to only 2 years.

Substantial AHSCT-related mortality in ASTIS

In the second trial, called ASTIS, AHSCT was associated with a higher rate of mortality than cyclophosphamide after 1 year of follow-up, although there was a significantly greater long-term event-free survival for AHSCT when patients were followed out to 4 years. This study reinforced the need for cardiac screening because of because of concern that severe cardiac compromise contributed to the increased risk of AHSCT-related mortality.

The SCOT trial employed a high-intensity myeloablative conditioning regimen and total body irradiation prior to AHSCT. It is not clear that these contributed to improved survival, particularly because of the risk for irradiation to exacerbate complications in the lung and kidney, but AHSCT-related mortality was only 3% at 54 months. Patient enrollment criteria in this trial were also suspected of having played a role in the favorable results.

In the Canadian-French collaborative study, patients were considered eligible for AHSCT if they met the enrollment criteria used in the ASTIS trial, according to Dr. Maltez. She attributed the low rates of early mortality and relative absence of transplant-related death to the lessons learned in the published trials.

Overall, the data support the routine but selective use of AHSCT in rapidly progressing systemic sclerosis, Dr. Maltez concluded.

Maria Carolina Oliveira, MD, of the department of internal medicine at the University of São Paulo, generally agreed. A coauthor of a recent review of AHSCT for systemic sclerosis, Dr. Oliveira emphasized that patient selection is critical.

“AHSCT for systemic sclerosis has very specific inclusion criteria. Indeed, it is indicated for patients with severe and progressive disease but under two specific conditions: severe and progressive diffuse skin involvement and/or progressive interstitial lung disease,” she said in an interview.

Because of the thin line between benefit and risk according to disease subtypes and comorbidities, she said that it is important to be aware of relative contraindications and to recognize the risks of AHSCT.

At this time, and in the absence of better biomarkers to identify those most likely to benefit, “patients with other forms of severe scleroderma, such as those with pulmonary hypertension, scleroderma renal crisis, or severe cardiac involvement, for example, are not eligible,” she said.

Dr. Maltez and Dr. Oliveira reported having no potential conflicts of interest.

Current selection criteria for autologous hematopoietic stem cell transplant (AHSCT) in patients with rapidly progressing systemic sclerosis were validated in a study presented at the annual meeting of the Canadian Rheumatology Association.

The study, which associated AHSCT with improvement in overall survival and an acceptable risk of adverse events, “provides valuable real-world, long-term data pertaining to key clinical outcomes to support the use of AHSCT in patients with rapidly progressing systemic sclerosis,” reported Nancy Maltez, MD, a rheumatologist and clinical investigator who is on the faculty of the University of Ottawa.

Fnaq / Wikimedia Commons / CC BY-SA 4.0

The prospective study enrolled 85 patients in Canada and 41 patients in France with rapidly progressing systemic sclerosis. The patients in both countries were enrolled with the same eligibility criteria for AHSCT, but patients in France underwent AHSCT while the patients in Canada were treated with conventional therapies, such as cyclophosphamide.

On the primary outcome of overall survival, the Kaplan-Meier curve split almost immediately in favor of AHSCT. At 4 years, more than 25% of patients in the conventional therapy group had died versus less than 5% of those who underwent AHSCT. Although the mortality curve did slope downwards in the AHSCT group over the subsequent 6 years of follow-up, it largely paralleled and remained superior to convention therapy.
 

About 50% survival advantage seen for AHSCT

In this nonrandomized study, the statistical survival advantage of AHSCT was not provided, but the survival graph showed about 75% survival at 8 years of follow-up in the AHSCT group, compared with about 50% survival in the conventional-therapy group.

Many of the secondary outcomes, including those evaluating skin involvement, preservation of lung function, and absence of renal complications also favored AHSCT, according to Dr. Maltez.

On the modified Rodnan skin score, a significant difference (P < .001) observed at 12 months was sustained at 36 months, when the score was 4.48 points lower among patients treated with AHSCT. The difference in forced vital capacity (FVC) was about 10% higher (P < .0001) in the AHSCT group.

Over long-term follow-up, the incidence of scleroderma renal crisis per 100 person-years was 6.02 cases in the conventional therapy group versus 0.58 cases (P < .001) in the AHSCT group. There was no significant difference in the proportion of patients in the two groups receiving a pacemaker over the course of follow-up, but the rate of new malignancies per 100 person-years was 3.71 in the conventional care group versus 0.58 (P < .001) in the AHSCT group.

Significant complications attributed to AHSCT were uncommon. This is important, because AHSCT was not uniformly well tolerated in the initial trials. The first of three randomized trials with AHSCT in progressive systemic sclerosis was published more than 10 years ago after a series of promising early phase trials. Each associated AHSCT with benefit, but patient selection appeared to be important.

In the ASSIST trial of 2011, AHSCT was associated with significant reductions in skin involvement and improvements in pulmonary function relative to cyclophosphamide, but enrollment was stopped after only 19 patients, and follow-up extended to only 2 years.

Substantial AHSCT-related mortality in ASTIS

In the second trial, called ASTIS, AHSCT was associated with a higher rate of mortality than cyclophosphamide after 1 year of follow-up, although there was a significantly greater long-term event-free survival for AHSCT when patients were followed out to 4 years. This study reinforced the need for cardiac screening because of because of concern that severe cardiac compromise contributed to the increased risk of AHSCT-related mortality.

The SCOT trial employed a high-intensity myeloablative conditioning regimen and total body irradiation prior to AHSCT. It is not clear that these contributed to improved survival, particularly because of the risk for irradiation to exacerbate complications in the lung and kidney, but AHSCT-related mortality was only 3% at 54 months. Patient enrollment criteria in this trial were also suspected of having played a role in the favorable results.

In the Canadian-French collaborative study, patients were considered eligible for AHSCT if they met the enrollment criteria used in the ASTIS trial, according to Dr. Maltez. She attributed the low rates of early mortality and relative absence of transplant-related death to the lessons learned in the published trials.

Overall, the data support the routine but selective use of AHSCT in rapidly progressing systemic sclerosis, Dr. Maltez concluded.

Maria Carolina Oliveira, MD, of the department of internal medicine at the University of São Paulo, generally agreed. A coauthor of a recent review of AHSCT for systemic sclerosis, Dr. Oliveira emphasized that patient selection is critical.

“AHSCT for systemic sclerosis has very specific inclusion criteria. Indeed, it is indicated for patients with severe and progressive disease but under two specific conditions: severe and progressive diffuse skin involvement and/or progressive interstitial lung disease,” she said in an interview.

Because of the thin line between benefit and risk according to disease subtypes and comorbidities, she said that it is important to be aware of relative contraindications and to recognize the risks of AHSCT.

At this time, and in the absence of better biomarkers to identify those most likely to benefit, “patients with other forms of severe scleroderma, such as those with pulmonary hypertension, scleroderma renal crisis, or severe cardiac involvement, for example, are not eligible,” she said.

Dr. Maltez and Dr. Oliveira reported having no potential conflicts of interest.

Vasculitis of the coronary arteries is a well-recognized acute complication of Kawasaki disease, but the long-term risk of cardiovascular (CV) sequelae does not appear to be clinically meaningful for most patients, according to results from an analysis of data presented at the annual meeting of the Canadian Rheumatology Association.

For patients and parents, these data provide “a message of reassurance,” according to Jennifer J.Y. Lee, MD, a pediatric rheumatologist affiliated with the Hospital for Sick Children, Toronto.

The long-term outcomes were characterized as reassuring even though rates of hypertension, major adverse cardiac events (MACE), and death from CV events were higher in patients with Kawasaki disease relative to controls in a retrospective data-linkage study. In fact, these differences were highly statistically significant, but the absolute differences were extremely small.

For this analysis, the 1,174 patients diagnosed with Kawasaki disease at Dr. Lee’s institution between 1991 and 2008 were compared in a 10:1 ratio to 11,740 controls matched for factors such as age, sex, ethnicity, and geographic region. The median follow-up period was 20 years, and the maximum was 28 years.
 

Adjusted CV risks are significant

In an adjusted Cox proportional hazard ratio model, patients in the Kawasaki group had a more than twofold increase in risk for hypertension (aHR, 2.3; P < .0001) and all-cause mortality (aHR, 2.5; P = .009). They also had more than a 10-fold increase in risk for MACE (aHR, 10.3; P < .0001).

These statistics belie the clinical relevance, according to Dr. Lee. Because of the very low rates of all the measured events in both groups, there was just one more case of hypertension per 1,250 patient-years of follow-up, one more case of MACE per 833 patient-years of follow-up, and one more death for 3,846 patient years of follow-up.

Moreover, when these outcomes were graphed over time, most events occurred during the acute period or in the initial years of follow-up.

“There was not a constant increase in risk of these outcomes over time for patients with Kawasaki disease relative to the controls,” Dr. Lee reported. “The long-term prognosis for Kawasaki patients remains favorable.”

European group reports similar results

Similar results from a single-center experience were published 3 years ago. In that study, 207 Kawasaki patients treated at the University of Lausanne (Switzerland) were followed for 30 years. Complications after the acute phase were characterized as “rare.”

For example, only three patients (1.4%) had a subsequent episode of myocardial ischemia. All three had developed a coronary aneurysm during the acute phase of Kawasaki disease. The authors of that study reported that children who had not received immunoglobulins during the acute phase or who developed Kawasaki disease outside of the usual age range were more likely to have subsequent events, such as disease recurrence.

Other studies of long-term CV outcomes in patients with Kawasaki disease generally show similar data, according to James T. Gaensbauer, MD, a pediatric infectious disease specialist at the Mayo Clinic, Rochester, Minn.

“I generally agree with the premise that major complications are rare when you compare a cohort of patients with Kawasaki disease with the general population,” Dr. Gaensbauer said. However, he added, “I do not think you can say no one needs to worry.”
 

Severity of acute disease might matter

During the acute phase of Kawasaki disease, the arterial damage varies. As suggested in the University of Lausanne follow-up, patients with significant coronary aneurysms do appear to be at greater risk of long-term complications. Dr. Gaensbauer cited a statement from the American Heart Association that noted a higher risk of CV sequelae from Kawasaki disease with a greater or more severe coronary aneurysm or in the face of other evidence of damage to the arterial tree.

“The clinical course within the first 2 years of Kawasaki disease appears to be important for risk of CV complications after this time,” Dr. Gaensbauer said.

The absolute risk of CV events in patients with a more complicated acute course of Kawasaki disease remains incompletely understood, but Dr. Gaensbauer said that there are several sets of data, including these new data from the Hospital for Sick Children, that suggest that the overall prognosis is good. However, he cautioned that this reassurance does not necessarily apply to children with a difficult acute course.

According to the 2017 AHA statement on Kawasaki disease, risk stratification based on echocardiography and other measures after the acute phase of Kawasaki disease are reasonable to determine if long-term follow-up is needed. In those without abnormalities, it is reasonable to forgo further cardiology assessment.

Dr. Lee and Dr. Gaensbauer reported having no potential conflicts of interest.

Vasculitis of the coronary arteries is a well-recognized acute complication of Kawasaki disease, but the long-term risk of cardiovascular (CV) sequelae does not appear to be clinically meaningful for most patients, according to results from an analysis of data presented at the annual meeting of the Canadian Rheumatology Association.

For patients and parents, these data provide “a message of reassurance,” according to Jennifer J.Y. Lee, MD, a pediatric rheumatologist affiliated with the Hospital for Sick Children, Toronto.

The long-term outcomes were characterized as reassuring even though rates of hypertension, major adverse cardiac events (MACE), and death from CV events were higher in patients with Kawasaki disease relative to controls in a retrospective data-linkage study. In fact, these differences were highly statistically significant, but the absolute differences were extremely small.

For this analysis, the 1,174 patients diagnosed with Kawasaki disease at Dr. Lee’s institution between 1991 and 2008 were compared in a 10:1 ratio to 11,740 controls matched for factors such as age, sex, ethnicity, and geographic region. The median follow-up period was 20 years, and the maximum was 28 years.
 

Adjusted CV risks are significant

In an adjusted Cox proportional hazard ratio model, patients in the Kawasaki group had a more than twofold increase in risk for hypertension (aHR, 2.3; P < .0001) and all-cause mortality (aHR, 2.5; P = .009). They also had more than a 10-fold increase in risk for MACE (aHR, 10.3; P < .0001).

These statistics belie the clinical relevance, according to Dr. Lee. Because of the very low rates of all the measured events in both groups, there was just one more case of hypertension per 1,250 patient-years of follow-up, one more case of MACE per 833 patient-years of follow-up, and one more death for 3,846 patient years of follow-up.

Moreover, when these outcomes were graphed over time, most events occurred during the acute period or in the initial years of follow-up.

“There was not a constant increase in risk of these outcomes over time for patients with Kawasaki disease relative to the controls,” Dr. Lee reported. “The long-term prognosis for Kawasaki patients remains favorable.”

European group reports similar results

Similar results from a single-center experience were published 3 years ago. In that study, 207 Kawasaki patients treated at the University of Lausanne (Switzerland) were followed for 30 years. Complications after the acute phase were characterized as “rare.”

For example, only three patients (1.4%) had a subsequent episode of myocardial ischemia. All three had developed a coronary aneurysm during the acute phase of Kawasaki disease. The authors of that study reported that children who had not received immunoglobulins during the acute phase or who developed Kawasaki disease outside of the usual age range were more likely to have subsequent events, such as disease recurrence.

Other studies of long-term CV outcomes in patients with Kawasaki disease generally show similar data, according to James T. Gaensbauer, MD, a pediatric infectious disease specialist at the Mayo Clinic, Rochester, Minn.

“I generally agree with the premise that major complications are rare when you compare a cohort of patients with Kawasaki disease with the general population,” Dr. Gaensbauer said. However, he added, “I do not think you can say no one needs to worry.”
 

Severity of acute disease might matter

During the acute phase of Kawasaki disease, the arterial damage varies. As suggested in the University of Lausanne follow-up, patients with significant coronary aneurysms do appear to be at greater risk of long-term complications. Dr. Gaensbauer cited a statement from the American Heart Association that noted a higher risk of CV sequelae from Kawasaki disease with a greater or more severe coronary aneurysm or in the face of other evidence of damage to the arterial tree.

“The clinical course within the first 2 years of Kawasaki disease appears to be important for risk of CV complications after this time,” Dr. Gaensbauer said.

The absolute risk of CV events in patients with a more complicated acute course of Kawasaki disease remains incompletely understood, but Dr. Gaensbauer said that there are several sets of data, including these new data from the Hospital for Sick Children, that suggest that the overall prognosis is good. However, he cautioned that this reassurance does not necessarily apply to children with a difficult acute course.

According to the 2017 AHA statement on Kawasaki disease, risk stratification based on echocardiography and other measures after the acute phase of Kawasaki disease are reasonable to determine if long-term follow-up is needed. In those without abnormalities, it is reasonable to forgo further cardiology assessment.

Dr. Lee and Dr. Gaensbauer reported having no potential conflicts of interest.

Vasculitis of the coronary arteries is a well-recognized acute complication of Kawasaki disease, but the long-term risk of cardiovascular (CV) sequelae does not appear to be clinically meaningful for most patients, according to results from an analysis of data presented at the annual meeting of the Canadian Rheumatology Association.

For patients and parents, these data provide “a message of reassurance,” according to Jennifer J.Y. Lee, MD, a pediatric rheumatologist affiliated with the Hospital for Sick Children, Toronto.

The long-term outcomes were characterized as reassuring even though rates of hypertension, major adverse cardiac events (MACE), and death from CV events were higher in patients with Kawasaki disease relative to controls in a retrospective data-linkage study. In fact, these differences were highly statistically significant, but the absolute differences were extremely small.

For this analysis, the 1,174 patients diagnosed with Kawasaki disease at Dr. Lee’s institution between 1991 and 2008 were compared in a 10:1 ratio to 11,740 controls matched for factors such as age, sex, ethnicity, and geographic region. The median follow-up period was 20 years, and the maximum was 28 years.
 

Adjusted CV risks are significant

In an adjusted Cox proportional hazard ratio model, patients in the Kawasaki group had a more than twofold increase in risk for hypertension (aHR, 2.3; P < .0001) and all-cause mortality (aHR, 2.5; P = .009). They also had more than a 10-fold increase in risk for MACE (aHR, 10.3; P < .0001).

These statistics belie the clinical relevance, according to Dr. Lee. Because of the very low rates of all the measured events in both groups, there was just one more case of hypertension per 1,250 patient-years of follow-up, one more case of MACE per 833 patient-years of follow-up, and one more death for 3,846 patient years of follow-up.

Moreover, when these outcomes were graphed over time, most events occurred during the acute period or in the initial years of follow-up.

“There was not a constant increase in risk of these outcomes over time for patients with Kawasaki disease relative to the controls,” Dr. Lee reported. “The long-term prognosis for Kawasaki patients remains favorable.”

European group reports similar results

Similar results from a single-center experience were published 3 years ago. In that study, 207 Kawasaki patients treated at the University of Lausanne (Switzerland) were followed for 30 years. Complications after the acute phase were characterized as “rare.”

For example, only three patients (1.4%) had a subsequent episode of myocardial ischemia. All three had developed a coronary aneurysm during the acute phase of Kawasaki disease. The authors of that study reported that children who had not received immunoglobulins during the acute phase or who developed Kawasaki disease outside of the usual age range were more likely to have subsequent events, such as disease recurrence.

Other studies of long-term CV outcomes in patients with Kawasaki disease generally show similar data, according to James T. Gaensbauer, MD, a pediatric infectious disease specialist at the Mayo Clinic, Rochester, Minn.

“I generally agree with the premise that major complications are rare when you compare a cohort of patients with Kawasaki disease with the general population,” Dr. Gaensbauer said. However, he added, “I do not think you can say no one needs to worry.”
 

Severity of acute disease might matter

During the acute phase of Kawasaki disease, the arterial damage varies. As suggested in the University of Lausanne follow-up, patients with significant coronary aneurysms do appear to be at greater risk of long-term complications. Dr. Gaensbauer cited a statement from the American Heart Association that noted a higher risk of CV sequelae from Kawasaki disease with a greater or more severe coronary aneurysm or in the face of other evidence of damage to the arterial tree.

“The clinical course within the first 2 years of Kawasaki disease appears to be important for risk of CV complications after this time,” Dr. Gaensbauer said.

The absolute risk of CV events in patients with a more complicated acute course of Kawasaki disease remains incompletely understood, but Dr. Gaensbauer said that there are several sets of data, including these new data from the Hospital for Sick Children, that suggest that the overall prognosis is good. However, he cautioned that this reassurance does not necessarily apply to children with a difficult acute course.

According to the 2017 AHA statement on Kawasaki disease, risk stratification based on echocardiography and other measures after the acute phase of Kawasaki disease are reasonable to determine if long-term follow-up is needed. In those without abnormalities, it is reasonable to forgo further cardiology assessment.

Dr. Lee and Dr. Gaensbauer reported having no potential conflicts of interest.

Patients who do not receive care for non–ST-segment elevation myocardial infarction (NSTEMI) within 24 hours have a substantially increased risk of mortality 3 years later when compared with those receiving earlier intervention, according to a population-based study evaluating more than 6,000 patients.

The characteristics of patients receiving NSTEMI care more than 24 hours after symptom onset were different from those treated earlier, but understanding these differences might provide clues for improved pathways to care, according to the investigators of this study, published in the Journal of the American College of Cardiology.

In a study of 6,544 NSTEMI patients in the Korea Acute Myocardial Infarction Registry, 1,827 (27%) were evaluated and treated 24 hours or more after symptom onset. When compared with the group with a shorter symptom-to-door time, outcomes at a median follow-up of 1,098 days were substantially worse.

Most importantly, this included a more than 50% absolute unadjusted increase in death from any cause (17.0% vs. 10.5%). On a 3-year adjusted multivariate hazard ratio, the increase was 35% (HR, 1.35; 95% confidence interval, 1.17-1.56; P < .001)

The absolute relative increase in cardiac death was similar in the delayed treatment group (10.8% vs. 6.4%) with a 37% increase in the 3-year multivariate adjustment (HR, 1.37; 95% CI 1.14-1.65; P < .001).
 

Delay raises composite adverse outcome >50%

On a composite of events that included mortality, recurrent MI, or hospitalization for heart failure, the rates climbed from 15.7% in the group treated within 24 hours to 23.3% (P < .001) when treatment was delayed. Heart failure, which was not significantly increased when evaluated separately, was not a major contributor to adverse outcomes, but those with delayed treatment did have more recurrent MIs (5.3% vs. 3.7%; P = .02).

Among a long list of differences between groups, those with delayed care had higher rates of atypical chest pain (25.1% vs. 14.8%; P < .001) and dyspnea (32.6% vs. 23.4%; P < .001). Expressed in odds ratios, they were also significantly more likely to be female (OR, 1.23), be aged 75 years or older (OR, 1.44), have diabetes (OR, 1.31), and to arrive at the hospital without aid from emergency medical services (OR, 3.44).

NSTEMI patients with delayed symptom-to-door time were also less likely to have hypertension (54.8% vs. 59.1%; P < .001), chronic kidney disease (20.8% vs. 25.5%), or a family history of cardiovascular disease (4.7% vs. 7.4%; P < .001). They were more likely to have left main and multivessel disease (57.1% vs. 50.5%; P < .001).

The value of early treatment has already been demonstrated for STEMI, which is reflected in guidelines, most of which now emphasize minimizing the door-to-balloon angioplasty time in order to more rapidly restore perfusion, thereby preserving more functional cardiac tissue. This study suggests that benefit from early intervention is also true of NSTEMI.

Reducing prehospital delay in care “should be emphasized as a crucial factor that increases the risk of all-cause mortality in NSTEMI patients,” reported the authors, led by Jung-Joon Cha, MD, PhD, division of cardiology, Korea University Anam Hospital, Seoul.
 

Public health campaigns needed

When asked about the take-home message, Dr. Cha, along with the senior author, Tae Hoon Ahn, MD, PhD, contend that delays can be addressed by educating both the public and clinicians.

“We would like to emphasize the need for public health campaigns to make patients more aware of atypical symptoms,” Dr. Cha said in an interview.

Dr. Ahn also believes that there is not enough current emphasis within medical systems to recognize and urgently treat NSTEMI patients with a nontraditional profile.

“Atypical symptoms in NSTEMI patients may lead physicians to underestimate the disease severity,” according to Dr. Ahn, who participated in an interview on the significance of these results. He said that atypical symptoms should induce clinicians to exercise “more caution rather than to neglect them.”

For understanding the value of prompt care in NSTEMI patients, this is important information. However, the importance of the 24-hour threshold as a discriminator of long-term risk was questioned by José A. Barrabés, MD, PhD, head of the acute cardiac care unit, University Hospital Vall d’Hebron, Barcelona.

The cutoff in this study was 24 hours, but Dr. Barrabés in an accompanying editorial pointed out that the median delay in those with a symptom-to-door time of at least 24 hours was in fact 72.0 hours.
 

Intermediate delay effect unknown

“This time lag is unusual and reduces the generalizability of the results,” according to Dr. Barrabés. He suggested that the exceptional delay increases the likelihood that the characteristics of the patients, such as more comorbidities or lower socioeconomic status, might have played a role in the differences in outcomes.

Asked to elaborate, Dr. Barrabés explained that delays in treatment, such as antithrombotic therapy, are plausible explanations for the worse outcomes at 3 years, but it is unclear from this data whether the risk starts at a delay of 24 hours.

“It is certainly plausible that intermediate delays are also associated with a worse prognosis,” Dr. Barrabés said in an interview, but “the risk associated with an intermediate delay in symptom-to-door time cannot be quantified with the data collected in this study.”

Dr. Cha and coinvestigators reported no potential conflicts of interest for this study. Dr. Barrabés has financial relationship with AstraZeneca, Novo Nordisk, and Rovi.

Patients who do not receive care for non–ST-segment elevation myocardial infarction (NSTEMI) within 24 hours have a substantially increased risk of mortality 3 years later when compared with those receiving earlier intervention, according to a population-based study evaluating more than 6,000 patients.

The characteristics of patients receiving NSTEMI care more than 24 hours after symptom onset were different from those treated earlier, but understanding these differences might provide clues for improved pathways to care, according to the investigators of this study, published in the Journal of the American College of Cardiology.

In a study of 6,544 NSTEMI patients in the Korea Acute Myocardial Infarction Registry, 1,827 (27%) were evaluated and treated 24 hours or more after symptom onset. When compared with the group with a shorter symptom-to-door time, outcomes at a median follow-up of 1,098 days were substantially worse.

Most importantly, this included a more than 50% absolute unadjusted increase in death from any cause (17.0% vs. 10.5%). On a 3-year adjusted multivariate hazard ratio, the increase was 35% (HR, 1.35; 95% confidence interval, 1.17-1.56; P < .001)

The absolute relative increase in cardiac death was similar in the delayed treatment group (10.8% vs. 6.4%) with a 37% increase in the 3-year multivariate adjustment (HR, 1.37; 95% CI 1.14-1.65; P < .001).
 

Delay raises composite adverse outcome >50%

On a composite of events that included mortality, recurrent MI, or hospitalization for heart failure, the rates climbed from 15.7% in the group treated within 24 hours to 23.3% (P < .001) when treatment was delayed. Heart failure, which was not significantly increased when evaluated separately, was not a major contributor to adverse outcomes, but those with delayed treatment did have more recurrent MIs (5.3% vs. 3.7%; P = .02).

Among a long list of differences between groups, those with delayed care had higher rates of atypical chest pain (25.1% vs. 14.8%; P < .001) and dyspnea (32.6% vs. 23.4%; P < .001). Expressed in odds ratios, they were also significantly more likely to be female (OR, 1.23), be aged 75 years or older (OR, 1.44), have diabetes (OR, 1.31), and to arrive at the hospital without aid from emergency medical services (OR, 3.44).

NSTEMI patients with delayed symptom-to-door time were also less likely to have hypertension (54.8% vs. 59.1%; P < .001), chronic kidney disease (20.8% vs. 25.5%), or a family history of cardiovascular disease (4.7% vs. 7.4%; P < .001). They were more likely to have left main and multivessel disease (57.1% vs. 50.5%; P < .001).

The value of early treatment has already been demonstrated for STEMI, which is reflected in guidelines, most of which now emphasize minimizing the door-to-balloon angioplasty time in order to more rapidly restore perfusion, thereby preserving more functional cardiac tissue. This study suggests that benefit from early intervention is also true of NSTEMI.

Reducing prehospital delay in care “should be emphasized as a crucial factor that increases the risk of all-cause mortality in NSTEMI patients,” reported the authors, led by Jung-Joon Cha, MD, PhD, division of cardiology, Korea University Anam Hospital, Seoul.
 

Public health campaigns needed

When asked about the take-home message, Dr. Cha, along with the senior author, Tae Hoon Ahn, MD, PhD, contend that delays can be addressed by educating both the public and clinicians.

“We would like to emphasize the need for public health campaigns to make patients more aware of atypical symptoms,” Dr. Cha said in an interview.

Dr. Ahn also believes that there is not enough current emphasis within medical systems to recognize and urgently treat NSTEMI patients with a nontraditional profile.

“Atypical symptoms in NSTEMI patients may lead physicians to underestimate the disease severity,” according to Dr. Ahn, who participated in an interview on the significance of these results. He said that atypical symptoms should induce clinicians to exercise “more caution rather than to neglect them.”

For understanding the value of prompt care in NSTEMI patients, this is important information. However, the importance of the 24-hour threshold as a discriminator of long-term risk was questioned by José A. Barrabés, MD, PhD, head of the acute cardiac care unit, University Hospital Vall d’Hebron, Barcelona.

The cutoff in this study was 24 hours, but Dr. Barrabés in an accompanying editorial pointed out that the median delay in those with a symptom-to-door time of at least 24 hours was in fact 72.0 hours.
 

Intermediate delay effect unknown

“This time lag is unusual and reduces the generalizability of the results,” according to Dr. Barrabés. He suggested that the exceptional delay increases the likelihood that the characteristics of the patients, such as more comorbidities or lower socioeconomic status, might have played a role in the differences in outcomes.

Asked to elaborate, Dr. Barrabés explained that delays in treatment, such as antithrombotic therapy, are plausible explanations for the worse outcomes at 3 years, but it is unclear from this data whether the risk starts at a delay of 24 hours.

“It is certainly plausible that intermediate delays are also associated with a worse prognosis,” Dr. Barrabés said in an interview, but “the risk associated with an intermediate delay in symptom-to-door time cannot be quantified with the data collected in this study.”

Dr. Cha and coinvestigators reported no potential conflicts of interest for this study. Dr. Barrabés has financial relationship with AstraZeneca, Novo Nordisk, and Rovi.

Patients who do not receive care for non–ST-segment elevation myocardial infarction (NSTEMI) within 24 hours have a substantially increased risk of mortality 3 years later when compared with those receiving earlier intervention, according to a population-based study evaluating more than 6,000 patients.

The characteristics of patients receiving NSTEMI care more than 24 hours after symptom onset were different from those treated earlier, but understanding these differences might provide clues for improved pathways to care, according to the investigators of this study, published in the Journal of the American College of Cardiology.

In a study of 6,544 NSTEMI patients in the Korea Acute Myocardial Infarction Registry, 1,827 (27%) were evaluated and treated 24 hours or more after symptom onset. When compared with the group with a shorter symptom-to-door time, outcomes at a median follow-up of 1,098 days were substantially worse.

Most importantly, this included a more than 50% absolute unadjusted increase in death from any cause (17.0% vs. 10.5%). On a 3-year adjusted multivariate hazard ratio, the increase was 35% (HR, 1.35; 95% confidence interval, 1.17-1.56; P < .001)

The absolute relative increase in cardiac death was similar in the delayed treatment group (10.8% vs. 6.4%) with a 37% increase in the 3-year multivariate adjustment (HR, 1.37; 95% CI 1.14-1.65; P < .001).
 

Delay raises composite adverse outcome >50%

On a composite of events that included mortality, recurrent MI, or hospitalization for heart failure, the rates climbed from 15.7% in the group treated within 24 hours to 23.3% (P < .001) when treatment was delayed. Heart failure, which was not significantly increased when evaluated separately, was not a major contributor to adverse outcomes, but those with delayed treatment did have more recurrent MIs (5.3% vs. 3.7%; P = .02).

Among a long list of differences between groups, those with delayed care had higher rates of atypical chest pain (25.1% vs. 14.8%; P < .001) and dyspnea (32.6% vs. 23.4%; P < .001). Expressed in odds ratios, they were also significantly more likely to be female (OR, 1.23), be aged 75 years or older (OR, 1.44), have diabetes (OR, 1.31), and to arrive at the hospital without aid from emergency medical services (OR, 3.44).

NSTEMI patients with delayed symptom-to-door time were also less likely to have hypertension (54.8% vs. 59.1%; P < .001), chronic kidney disease (20.8% vs. 25.5%), or a family history of cardiovascular disease (4.7% vs. 7.4%; P < .001). They were more likely to have left main and multivessel disease (57.1% vs. 50.5%; P < .001).

The value of early treatment has already been demonstrated for STEMI, which is reflected in guidelines, most of which now emphasize minimizing the door-to-balloon angioplasty time in order to more rapidly restore perfusion, thereby preserving more functional cardiac tissue. This study suggests that benefit from early intervention is also true of NSTEMI.

Reducing prehospital delay in care “should be emphasized as a crucial factor that increases the risk of all-cause mortality in NSTEMI patients,” reported the authors, led by Jung-Joon Cha, MD, PhD, division of cardiology, Korea University Anam Hospital, Seoul.
 

Public health campaigns needed

When asked about the take-home message, Dr. Cha, along with the senior author, Tae Hoon Ahn, MD, PhD, contend that delays can be addressed by educating both the public and clinicians.

“We would like to emphasize the need for public health campaigns to make patients more aware of atypical symptoms,” Dr. Cha said in an interview.

Dr. Ahn also believes that there is not enough current emphasis within medical systems to recognize and urgently treat NSTEMI patients with a nontraditional profile.

“Atypical symptoms in NSTEMI patients may lead physicians to underestimate the disease severity,” according to Dr. Ahn, who participated in an interview on the significance of these results. He said that atypical symptoms should induce clinicians to exercise “more caution rather than to neglect them.”

For understanding the value of prompt care in NSTEMI patients, this is important information. However, the importance of the 24-hour threshold as a discriminator of long-term risk was questioned by José A. Barrabés, MD, PhD, head of the acute cardiac care unit, University Hospital Vall d’Hebron, Barcelona.

The cutoff in this study was 24 hours, but Dr. Barrabés in an accompanying editorial pointed out that the median delay in those with a symptom-to-door time of at least 24 hours was in fact 72.0 hours.
 

Intermediate delay effect unknown

“This time lag is unusual and reduces the generalizability of the results,” according to Dr. Barrabés. He suggested that the exceptional delay increases the likelihood that the characteristics of the patients, such as more comorbidities or lower socioeconomic status, might have played a role in the differences in outcomes.

Asked to elaborate, Dr. Barrabés explained that delays in treatment, such as antithrombotic therapy, are plausible explanations for the worse outcomes at 3 years, but it is unclear from this data whether the risk starts at a delay of 24 hours.

“It is certainly plausible that intermediate delays are also associated with a worse prognosis,” Dr. Barrabés said in an interview, but “the risk associated with an intermediate delay in symptom-to-door time cannot be quantified with the data collected in this study.”

Dr. Cha and coinvestigators reported no potential conflicts of interest for this study. Dr. Barrabés has financial relationship with AstraZeneca, Novo Nordisk, and Rovi.

Daily aspirin is associated with new onset heart failure independent of other risk factors, according to data derived from a database with follow-up from more than 30,000 patients who did not have HF when they were enrolled.

Patrice Wendling/MDedge News

These data are not relevant to primary or secondary prevention of cardiovascular events but “refer only to starting aspirin for secondary prevention of HF in patients at high risk of HF or with symptomatic HF,” according to the senior investigator, Jan A. Staessen, MD, PhD, professor emeritus at the University of Leuven (Belgium).

In data from 30,827 patients at risk for HF enrolled in six observational studies, the hazard ratio (HR) for developing HF among those taking daily aspirin at baseline relative to those who were not was 1.26 (P ≤ .001) over 5.3 years of follow-up. In the 22,690 patients without a prior history cardiovascular disease (CVD), the HF risk increase for exposure to daily aspirin was about the same (HR 1.27; P = .001).

This study was launched because multiple conflicting studies have made the relationship between aspirin and HF risk unclear, according to the multinational team of authors, whose finding were published in ESC Heart Failure.

In principle, HF is recognized as a prothrombotic condition for which an antithrombotic therapy such as aspirin would be expected to have a protective role, but the investigators pointed out that the evidence is mixed. In a population-based Danish study of 12,277 patients with new-onset HF, for example, there was no relationship seen between aspirin use and a reduction in the composite outcome of all-cause mortality, myocardial infarction, or stroke.

Aspirin use linked to HF admissions

“Interestingly, this study reported that aspirin use was associated with an increased risk of readmissions for HF,” wrote the authors of the newly published data. “Uncertainty on aspirin use has been reflected in current guideline recommendations,” they added.

The population studied was drawn from the HOMAGE database, which has collated data on 46,437 participants in 21 studies. After the exclusion of studies with patients who already had HF as well as studies without information on HF incidence over time, six studies with 30,827 participants provided the basis for this analysis.

One study, ASCOT, which was randomized and blinded, served as the derivation data set. The remaining five studies, FLEMENGHO, HEALTH ABC, HULL LIFE LAB, PREDICTOR, and PROSPER, served as the validation data set.

In addition to identifying participants as aspirin users or nonusers at baseline, all of the studies had detailed baseline data on a wide variety of patient characteristics and risk factors, such as body mass index, blood cholesterol levels, blood glucose concentrations, blood pressure, and creatinine.

No patient in any trial was on an antithrombotic therapy other than aspirin at baseline.

Of the minority of patients with CVD at baseline, more than 80% had coronary heart disease. Only 2.8% of the total population had a prior myocardial infarction. In the study population overall, most (86%) had hypertension, and there was a sizeable proportion with diabetes (22%). The average age was 67 years, and 34% were women.
 

HF incidence on aspirin: 14.5/1000 person-years

Overall, the incidence rate of HF per 1,000 person-years for the entire population before adjustment was 14.5 in the group on daily aspirin versus 5.9 in the non-aspirin group. These absolute rates were lower in the discovery data set than in the validation set, but the relative differences in HF incidence rates for those who were versus those who were not on aspirin at baseline were similar.

Numerous sensitivity analyses supported the basic conclusions. This not only included one omitting patients with a history of CVD, but another that excluded patients who developed HF within the first 2 years. Stratified analyses looking for overall consistency across variables showed increased risk of new onset heart failure among those taking daily aspirin regardless of relative age, body weight, or blood pressure levels.

The most important limitation of this study was that it evaluated data taken from studies not originally designed to test the study hypothesis. In addition, only baseline data were available, so the drugs that patients took over the course of follow-up are unknown. However, the authors believe these data have a clinical message.

Given the consistency of these results, “our observations suggest that aspirin should be prescribed with caution in patients at risk of HF or having HF,” the investigators concluded.

“If such treatment is initiated in these patients, use low-dose aspirin,” Dr. Staessen told this news organization.
 

Aspirin for CVD versus HF risk

Many patients take low-dose aspirin to prevent the types of cardiovascular events, such as MI, that lead to heart failure. In attempting to address a controversy regarding aspirin and risk of new onset heart failure, it appears to create another regarding CVD risk reduction.

Deepak L. Bhatt, MD, executive director of Interventional Cardiovascular Programs at Brigham and Women’s Health, Boston, expressed some reluctance in applying these data to routine practice.

“It is important to emphasize that this pooled analysis draws upon six observational studies, not randomized trials of aspirin,” Dr. Bhatt said.

He called these findings “provocative,” but he said they “would need to be confirmed in databases of already completed randomized trials of aspirin versus a control before being actionable.” For Dr. Bhatt, one obstacle to a change in practice based on these data is that, “to my knowledge, no such signal [of a relationship between aspirin and incident heart failure] exists in the cumulative randomized data.”

Dr. Staessen reports no potential conflicts of interest for this study. Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PLx Pharma, for which he performs aspirin-related research.
 

Daily aspirin is associated with new onset heart failure independent of other risk factors, according to data derived from a database with follow-up from more than 30,000 patients who did not have HF when they were enrolled.

Patrice Wendling/MDedge News

These data are not relevant to primary or secondary prevention of cardiovascular events but “refer only to starting aspirin for secondary prevention of HF in patients at high risk of HF or with symptomatic HF,” according to the senior investigator, Jan A. Staessen, MD, PhD, professor emeritus at the University of Leuven (Belgium).

In data from 30,827 patients at risk for HF enrolled in six observational studies, the hazard ratio (HR) for developing HF among those taking daily aspirin at baseline relative to those who were not was 1.26 (P ≤ .001) over 5.3 years of follow-up. In the 22,690 patients without a prior history cardiovascular disease (CVD), the HF risk increase for exposure to daily aspirin was about the same (HR 1.27; P = .001).

This study was launched because multiple conflicting studies have made the relationship between aspirin and HF risk unclear, according to the multinational team of authors, whose finding were published in ESC Heart Failure.

In principle, HF is recognized as a prothrombotic condition for which an antithrombotic therapy such as aspirin would be expected to have a protective role, but the investigators pointed out that the evidence is mixed. In a population-based Danish study of 12,277 patients with new-onset HF, for example, there was no relationship seen between aspirin use and a reduction in the composite outcome of all-cause mortality, myocardial infarction, or stroke.

Aspirin use linked to HF admissions

“Interestingly, this study reported that aspirin use was associated with an increased risk of readmissions for HF,” wrote the authors of the newly published data. “Uncertainty on aspirin use has been reflected in current guideline recommendations,” they added.

The population studied was drawn from the HOMAGE database, which has collated data on 46,437 participants in 21 studies. After the exclusion of studies with patients who already had HF as well as studies without information on HF incidence over time, six studies with 30,827 participants provided the basis for this analysis.

One study, ASCOT, which was randomized and blinded, served as the derivation data set. The remaining five studies, FLEMENGHO, HEALTH ABC, HULL LIFE LAB, PREDICTOR, and PROSPER, served as the validation data set.

In addition to identifying participants as aspirin users or nonusers at baseline, all of the studies had detailed baseline data on a wide variety of patient characteristics and risk factors, such as body mass index, blood cholesterol levels, blood glucose concentrations, blood pressure, and creatinine.

No patient in any trial was on an antithrombotic therapy other than aspirin at baseline.

Of the minority of patients with CVD at baseline, more than 80% had coronary heart disease. Only 2.8% of the total population had a prior myocardial infarction. In the study population overall, most (86%) had hypertension, and there was a sizeable proportion with diabetes (22%). The average age was 67 years, and 34% were women.
 

HF incidence on aspirin: 14.5/1000 person-years

Overall, the incidence rate of HF per 1,000 person-years for the entire population before adjustment was 14.5 in the group on daily aspirin versus 5.9 in the non-aspirin group. These absolute rates were lower in the discovery data set than in the validation set, but the relative differences in HF incidence rates for those who were versus those who were not on aspirin at baseline were similar.

Numerous sensitivity analyses supported the basic conclusions. This not only included one omitting patients with a history of CVD, but another that excluded patients who developed HF within the first 2 years. Stratified analyses looking for overall consistency across variables showed increased risk of new onset heart failure among those taking daily aspirin regardless of relative age, body weight, or blood pressure levels.

The most important limitation of this study was that it evaluated data taken from studies not originally designed to test the study hypothesis. In addition, only baseline data were available, so the drugs that patients took over the course of follow-up are unknown. However, the authors believe these data have a clinical message.

Given the consistency of these results, “our observations suggest that aspirin should be prescribed with caution in patients at risk of HF or having HF,” the investigators concluded.

“If such treatment is initiated in these patients, use low-dose aspirin,” Dr. Staessen told this news organization.
 

Aspirin for CVD versus HF risk

Many patients take low-dose aspirin to prevent the types of cardiovascular events, such as MI, that lead to heart failure. In attempting to address a controversy regarding aspirin and risk of new onset heart failure, it appears to create another regarding CVD risk reduction.

Deepak L. Bhatt, MD, executive director of Interventional Cardiovascular Programs at Brigham and Women’s Health, Boston, expressed some reluctance in applying these data to routine practice.

“It is important to emphasize that this pooled analysis draws upon six observational studies, not randomized trials of aspirin,” Dr. Bhatt said.

He called these findings “provocative,” but he said they “would need to be confirmed in databases of already completed randomized trials of aspirin versus a control before being actionable.” For Dr. Bhatt, one obstacle to a change in practice based on these data is that, “to my knowledge, no such signal [of a relationship between aspirin and incident heart failure] exists in the cumulative randomized data.”

Dr. Staessen reports no potential conflicts of interest for this study. Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PLx Pharma, for which he performs aspirin-related research.
 

Daily aspirin is associated with new onset heart failure independent of other risk factors, according to data derived from a database with follow-up from more than 30,000 patients who did not have HF when they were enrolled.

Patrice Wendling/MDedge News

These data are not relevant to primary or secondary prevention of cardiovascular events but “refer only to starting aspirin for secondary prevention of HF in patients at high risk of HF or with symptomatic HF,” according to the senior investigator, Jan A. Staessen, MD, PhD, professor emeritus at the University of Leuven (Belgium).

In data from 30,827 patients at risk for HF enrolled in six observational studies, the hazard ratio (HR) for developing HF among those taking daily aspirin at baseline relative to those who were not was 1.26 (P ≤ .001) over 5.3 years of follow-up. In the 22,690 patients without a prior history cardiovascular disease (CVD), the HF risk increase for exposure to daily aspirin was about the same (HR 1.27; P = .001).

This study was launched because multiple conflicting studies have made the relationship between aspirin and HF risk unclear, according to the multinational team of authors, whose finding were published in ESC Heart Failure.

In principle, HF is recognized as a prothrombotic condition for which an antithrombotic therapy such as aspirin would be expected to have a protective role, but the investigators pointed out that the evidence is mixed. In a population-based Danish study of 12,277 patients with new-onset HF, for example, there was no relationship seen between aspirin use and a reduction in the composite outcome of all-cause mortality, myocardial infarction, or stroke.

Aspirin use linked to HF admissions

“Interestingly, this study reported that aspirin use was associated with an increased risk of readmissions for HF,” wrote the authors of the newly published data. “Uncertainty on aspirin use has been reflected in current guideline recommendations,” they added.

The population studied was drawn from the HOMAGE database, which has collated data on 46,437 participants in 21 studies. After the exclusion of studies with patients who already had HF as well as studies without information on HF incidence over time, six studies with 30,827 participants provided the basis for this analysis.

One study, ASCOT, which was randomized and blinded, served as the derivation data set. The remaining five studies, FLEMENGHO, HEALTH ABC, HULL LIFE LAB, PREDICTOR, and PROSPER, served as the validation data set.

In addition to identifying participants as aspirin users or nonusers at baseline, all of the studies had detailed baseline data on a wide variety of patient characteristics and risk factors, such as body mass index, blood cholesterol levels, blood glucose concentrations, blood pressure, and creatinine.

No patient in any trial was on an antithrombotic therapy other than aspirin at baseline.

Of the minority of patients with CVD at baseline, more than 80% had coronary heart disease. Only 2.8% of the total population had a prior myocardial infarction. In the study population overall, most (86%) had hypertension, and there was a sizeable proportion with diabetes (22%). The average age was 67 years, and 34% were women.
 

HF incidence on aspirin: 14.5/1000 person-years

Overall, the incidence rate of HF per 1,000 person-years for the entire population before adjustment was 14.5 in the group on daily aspirin versus 5.9 in the non-aspirin group. These absolute rates were lower in the discovery data set than in the validation set, but the relative differences in HF incidence rates for those who were versus those who were not on aspirin at baseline were similar.

Numerous sensitivity analyses supported the basic conclusions. This not only included one omitting patients with a history of CVD, but another that excluded patients who developed HF within the first 2 years. Stratified analyses looking for overall consistency across variables showed increased risk of new onset heart failure among those taking daily aspirin regardless of relative age, body weight, or blood pressure levels.

The most important limitation of this study was that it evaluated data taken from studies not originally designed to test the study hypothesis. In addition, only baseline data were available, so the drugs that patients took over the course of follow-up are unknown. However, the authors believe these data have a clinical message.

Given the consistency of these results, “our observations suggest that aspirin should be prescribed with caution in patients at risk of HF or having HF,” the investigators concluded.

“If such treatment is initiated in these patients, use low-dose aspirin,” Dr. Staessen told this news organization.
 

Aspirin for CVD versus HF risk

Many patients take low-dose aspirin to prevent the types of cardiovascular events, such as MI, that lead to heart failure. In attempting to address a controversy regarding aspirin and risk of new onset heart failure, it appears to create another regarding CVD risk reduction.

Deepak L. Bhatt, MD, executive director of Interventional Cardiovascular Programs at Brigham and Women’s Health, Boston, expressed some reluctance in applying these data to routine practice.

“It is important to emphasize that this pooled analysis draws upon six observational studies, not randomized trials of aspirin,” Dr. Bhatt said.

He called these findings “provocative,” but he said they “would need to be confirmed in databases of already completed randomized trials of aspirin versus a control before being actionable.” For Dr. Bhatt, one obstacle to a change in practice based on these data is that, “to my knowledge, no such signal [of a relationship between aspirin and incident heart failure] exists in the cumulative randomized data.”

Dr. Staessen reports no potential conflicts of interest for this study. Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PLx Pharma, for which he performs aspirin-related research.
 

The experimental monoclonal antibody bentracimab, which reverses the antiplatelet effects of ticagrelor, appears to be heading toward regulatory approval, on the basis of an interim analysis of the phase 3 REVERSE-IT trial.

“Rates of effective hemostasis were adjudicated as good or excellent in more than 90% of cases with no drug-related serious adverse events or allergic or infusion-related reactions,” reported Deepak L. Bhatt, MD, at the American Heart Association scientific sessions.

The interim analysis of this nonrandomized, single-arm study was requested by the Food and Drug Administration, which is considering a conditional accelerated approval of bentracimab (formerly PB2452) if efficacy and safety are established.

Upon administration, bentracimab binds to free ticagrelor so that ticagrelor cannot bind to the P2Y12 platelet receptor. This interrupts one of the key steps in the pathway of platelet aggregation.

REVERSE-IT is still enrolling patients. This interim analysis was conducted with the first 150 patients who met eligibility criteria and were treated. Of these, 142 patients were enrolled for an urgent surgical indication and 8 for a major bleeding indication. After some exclusions for lack of urgency and reclassifications following adjudication, there were 113 surgical cases and 9 major bleeding patients evaluable for hemostasis.
 

Platelet function assays test reversal

On the primary reversal endpoint, which was restoration of activity on the proprietary platelet function assays Verify Now and PRUTest, a rapid restoration of platelet function was achieved in both surgical and major-bleeding patients. Platelet reactivity climbed to near normal levels within 10 minutes of administration, and peak effects were sustained through the first 24 hours after administration.

On the basis of the platelet function assays, the pattern of response to bentracimab was “very similar in the surgical and bleeding patients,” reported Dr. Bhatt, executive director of interventional cardiovascular programs at Brigham and Women’s Health, Boston.

The effect was also consistent across a broad array of prespecified subgroups, including stratifications by age, renal function, time from last dose of ticagrelor, race, and the presence of comorbidities, such as diabetes, renal dysfunction, hypertension, and history of MI.
 

Hemostasis documented in all but one patient

Adjudicated hemostasis was achieved in 100% of the 113 urgent surgical patients evaluated. In the nine major bleeding patients, six achieved excellent hemostasis and one achieved good hemostasis. One had poor hemostasis, and one was unevaluable.

Platelet rebound following bentracimab administration, measured by mean platelet volume, was not observed.

There were no serious adverse events, allergic reactions, or serious infusion-related reactions associated with the administration of bentracimab, Dr. Bhatt said.

While Dr. Bhatt acknowledged that the number of patients in the major-bleeding subgroup was small, he noted that the reduction in platelet reactivity relative to baseline was still significant. In addition, he characterized urgent surgery as “an excellent model of bleeding” and pointed out the consistency of results in the surgical and major-bleeding groups.

The interim results are also consistent with phase 1 data published 2 years ago, and with the subsequent phase 2 studies. All of these data are now under regulatory review both in the United States and in Europe, according to Dr. Bhatt.
 

No good current options for reversal

Evidence of efficacy and safety is encouraging, because current options for urgently reversing ticagrelor are “disappointing,” according to the invited discussant Gilles Montalescot, MD, PhD, professor of cardiology, Pitié-Salpêtrière Hôpital, Paris.

“Platelet transfusion has some value for clopidogrel and prasugrel, but it does not work for ticagrelor,” said Dr. Montalescot, referring to two other P2Y12 inhibitors. Substantiating the need for a reversal agent, he identified several other strategies that have proven ineffective, such as desmopressin and sorbent hemadsorption.

Overall, Dr. Montalescot acknowledged the need for a highly effective ticagrelor reversal agent, but he did have some criticisms of REVERSE-IT. For one, he was not convinced about the design.

“What was unethical in having a control group?” he asked, suggesting that it was feasible and would have addressed issues of relative efficacy and safety.

For example, the authors concluded that none of the thrombotic events were likely to be treatment related, but “four events occurred immediately after reversal without an alternate explanation,” Dr. Montalescot pointed out. “Was this a signal or background noise?”

Nevertheless, he agreed that the interim phase 3 data are consistent with the previously reported phase 2 studies, and he reiterated that a strategy to reverse ticagrelor’s effects is an important unmet need.

Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PhaseBio, which provided funding for the REVERSE-IT trial. Dr. Montalescot reported financial relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Boston Scientific, Bristol-Myers Squibb, Cell-Prothera, CSL-Behring, Europa, Idorsia, Servicer, Medtronic, Merck Sharpe & Dohme, Novartis, Pfizer, Quantum Genomics, and Sanofi-Aventis.
 

The experimental monoclonal antibody bentracimab, which reverses the antiplatelet effects of ticagrelor, appears to be heading toward regulatory approval, on the basis of an interim analysis of the phase 3 REVERSE-IT trial.

“Rates of effective hemostasis were adjudicated as good or excellent in more than 90% of cases with no drug-related serious adverse events or allergic or infusion-related reactions,” reported Deepak L. Bhatt, MD, at the American Heart Association scientific sessions.

The interim analysis of this nonrandomized, single-arm study was requested by the Food and Drug Administration, which is considering a conditional accelerated approval of bentracimab (formerly PB2452) if efficacy and safety are established.

Upon administration, bentracimab binds to free ticagrelor so that ticagrelor cannot bind to the P2Y12 platelet receptor. This interrupts one of the key steps in the pathway of platelet aggregation.

REVERSE-IT is still enrolling patients. This interim analysis was conducted with the first 150 patients who met eligibility criteria and were treated. Of these, 142 patients were enrolled for an urgent surgical indication and 8 for a major bleeding indication. After some exclusions for lack of urgency and reclassifications following adjudication, there were 113 surgical cases and 9 major bleeding patients evaluable for hemostasis.
 

Platelet function assays test reversal

On the primary reversal endpoint, which was restoration of activity on the proprietary platelet function assays Verify Now and PRUTest, a rapid restoration of platelet function was achieved in both surgical and major-bleeding patients. Platelet reactivity climbed to near normal levels within 10 minutes of administration, and peak effects were sustained through the first 24 hours after administration.

On the basis of the platelet function assays, the pattern of response to bentracimab was “very similar in the surgical and bleeding patients,” reported Dr. Bhatt, executive director of interventional cardiovascular programs at Brigham and Women’s Health, Boston.

The effect was also consistent across a broad array of prespecified subgroups, including stratifications by age, renal function, time from last dose of ticagrelor, race, and the presence of comorbidities, such as diabetes, renal dysfunction, hypertension, and history of MI.
 

Hemostasis documented in all but one patient

Adjudicated hemostasis was achieved in 100% of the 113 urgent surgical patients evaluated. In the nine major bleeding patients, six achieved excellent hemostasis and one achieved good hemostasis. One had poor hemostasis, and one was unevaluable.

Platelet rebound following bentracimab administration, measured by mean platelet volume, was not observed.

There were no serious adverse events, allergic reactions, or serious infusion-related reactions associated with the administration of bentracimab, Dr. Bhatt said.

While Dr. Bhatt acknowledged that the number of patients in the major-bleeding subgroup was small, he noted that the reduction in platelet reactivity relative to baseline was still significant. In addition, he characterized urgent surgery as “an excellent model of bleeding” and pointed out the consistency of results in the surgical and major-bleeding groups.

The interim results are also consistent with phase 1 data published 2 years ago, and with the subsequent phase 2 studies. All of these data are now under regulatory review both in the United States and in Europe, according to Dr. Bhatt.
 

No good current options for reversal

Evidence of efficacy and safety is encouraging, because current options for urgently reversing ticagrelor are “disappointing,” according to the invited discussant Gilles Montalescot, MD, PhD, professor of cardiology, Pitié-Salpêtrière Hôpital, Paris.

“Platelet transfusion has some value for clopidogrel and prasugrel, but it does not work for ticagrelor,” said Dr. Montalescot, referring to two other P2Y12 inhibitors. Substantiating the need for a reversal agent, he identified several other strategies that have proven ineffective, such as desmopressin and sorbent hemadsorption.

Overall, Dr. Montalescot acknowledged the need for a highly effective ticagrelor reversal agent, but he did have some criticisms of REVERSE-IT. For one, he was not convinced about the design.

“What was unethical in having a control group?” he asked, suggesting that it was feasible and would have addressed issues of relative efficacy and safety.

For example, the authors concluded that none of the thrombotic events were likely to be treatment related, but “four events occurred immediately after reversal without an alternate explanation,” Dr. Montalescot pointed out. “Was this a signal or background noise?”

Nevertheless, he agreed that the interim phase 3 data are consistent with the previously reported phase 2 studies, and he reiterated that a strategy to reverse ticagrelor’s effects is an important unmet need.

Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PhaseBio, which provided funding for the REVERSE-IT trial. Dr. Montalescot reported financial relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Boston Scientific, Bristol-Myers Squibb, Cell-Prothera, CSL-Behring, Europa, Idorsia, Servicer, Medtronic, Merck Sharpe & Dohme, Novartis, Pfizer, Quantum Genomics, and Sanofi-Aventis.
 

The experimental monoclonal antibody bentracimab, which reverses the antiplatelet effects of ticagrelor, appears to be heading toward regulatory approval, on the basis of an interim analysis of the phase 3 REVERSE-IT trial.

“Rates of effective hemostasis were adjudicated as good or excellent in more than 90% of cases with no drug-related serious adverse events or allergic or infusion-related reactions,” reported Deepak L. Bhatt, MD, at the American Heart Association scientific sessions.

The interim analysis of this nonrandomized, single-arm study was requested by the Food and Drug Administration, which is considering a conditional accelerated approval of bentracimab (formerly PB2452) if efficacy and safety are established.

Upon administration, bentracimab binds to free ticagrelor so that ticagrelor cannot bind to the P2Y12 platelet receptor. This interrupts one of the key steps in the pathway of platelet aggregation.

REVERSE-IT is still enrolling patients. This interim analysis was conducted with the first 150 patients who met eligibility criteria and were treated. Of these, 142 patients were enrolled for an urgent surgical indication and 8 for a major bleeding indication. After some exclusions for lack of urgency and reclassifications following adjudication, there were 113 surgical cases and 9 major bleeding patients evaluable for hemostasis.
 

Platelet function assays test reversal

On the primary reversal endpoint, which was restoration of activity on the proprietary platelet function assays Verify Now and PRUTest, a rapid restoration of platelet function was achieved in both surgical and major-bleeding patients. Platelet reactivity climbed to near normal levels within 10 minutes of administration, and peak effects were sustained through the first 24 hours after administration.

On the basis of the platelet function assays, the pattern of response to bentracimab was “very similar in the surgical and bleeding patients,” reported Dr. Bhatt, executive director of interventional cardiovascular programs at Brigham and Women’s Health, Boston.

The effect was also consistent across a broad array of prespecified subgroups, including stratifications by age, renal function, time from last dose of ticagrelor, race, and the presence of comorbidities, such as diabetes, renal dysfunction, hypertension, and history of MI.
 

Hemostasis documented in all but one patient

Adjudicated hemostasis was achieved in 100% of the 113 urgent surgical patients evaluated. In the nine major bleeding patients, six achieved excellent hemostasis and one achieved good hemostasis. One had poor hemostasis, and one was unevaluable.

Platelet rebound following bentracimab administration, measured by mean platelet volume, was not observed.

There were no serious adverse events, allergic reactions, or serious infusion-related reactions associated with the administration of bentracimab, Dr. Bhatt said.

While Dr. Bhatt acknowledged that the number of patients in the major-bleeding subgroup was small, he noted that the reduction in platelet reactivity relative to baseline was still significant. In addition, he characterized urgent surgery as “an excellent model of bleeding” and pointed out the consistency of results in the surgical and major-bleeding groups.

The interim results are also consistent with phase 1 data published 2 years ago, and with the subsequent phase 2 studies. All of these data are now under regulatory review both in the United States and in Europe, according to Dr. Bhatt.
 

No good current options for reversal

Evidence of efficacy and safety is encouraging, because current options for urgently reversing ticagrelor are “disappointing,” according to the invited discussant Gilles Montalescot, MD, PhD, professor of cardiology, Pitié-Salpêtrière Hôpital, Paris.

“Platelet transfusion has some value for clopidogrel and prasugrel, but it does not work for ticagrelor,” said Dr. Montalescot, referring to two other P2Y12 inhibitors. Substantiating the need for a reversal agent, he identified several other strategies that have proven ineffective, such as desmopressin and sorbent hemadsorption.

Overall, Dr. Montalescot acknowledged the need for a highly effective ticagrelor reversal agent, but he did have some criticisms of REVERSE-IT. For one, he was not convinced about the design.

“What was unethical in having a control group?” he asked, suggesting that it was feasible and would have addressed issues of relative efficacy and safety.

For example, the authors concluded that none of the thrombotic events were likely to be treatment related, but “four events occurred immediately after reversal without an alternate explanation,” Dr. Montalescot pointed out. “Was this a signal or background noise?”

Nevertheless, he agreed that the interim phase 3 data are consistent with the previously reported phase 2 studies, and he reiterated that a strategy to reverse ticagrelor’s effects is an important unmet need.

Dr. Bhatt has a financial relationship with a large number of pharmaceutical companies, including PhaseBio, which provided funding for the REVERSE-IT trial. Dr. Montalescot reported financial relationships with Amgen, AstraZeneca, Bayer, Boehringer Ingelheim, Boston Scientific, Bristol-Myers Squibb, Cell-Prothera, CSL-Behring, Europa, Idorsia, Servicer, Medtronic, Merck Sharpe & Dohme, Novartis, Pfizer, Quantum Genomics, and Sanofi-Aventis.
 

A large, multicenter, sham-controlled trial in heart failure showed no benefit at all from stem cell delivery on the primary outcome of recurrent nonfatal decompensated HF events, but the results were still promising, according to the DREAM-HF study’s principal investigator.

When added to guideline-directed medical therapy in patients with HF, a single dose of mesenchymal progenitor cells (MPC) significantly reduced major adverse cardiovascular events (MACE) – a composite of cardiac death, nonfatal MI, and nonfatal stroke – and all-cause death in New York Heart Association (NYHA) class II (but not class III patients), reported Emerson C. Perin, MD, PhD, at the American Heart Association scientific sessions.

The problem is that none of these outcomes were included in the primary endpoint, which was recurrent events because of nonfatal decompensated heart failure. On this endpoint, the hazard ratio for events by the end of follow-up was nonsignificantly but slightly increased among those randomized to MPCs rather than sham control (HR, 1.2; P = .406).

“We learned a lot in this trial,” said Dr. Perin, who is medical director of the Texas Heart Institute in Houston, acknowledging that the expectation of benefit on the primary endpoint now appears to have been misplaced, but the positive result on other outcomes opens a new research direction.

With a negative result on the primary endpoint, a benefit on secondary endpoints is considered hypothesis generating. But Dr. Perin defended his sense of overall optimism about the results, because all of the endpoints on which benefit was demonstrated were prespecified. The positive findings “are not from a post hoc analyses,” he emphasized.
 

DREAM-HF

In the trial, 537 patients with chronic ischemic or nonischemic heart failure with NYHA class II or III symptoms and a left ventricular ejection fraction of 40% or lower were randomized at 51 sites in the United States and Canada. Patients were required to have elevated N-terminal of the prohormone brain natriuretic peptide levels, at least one prior hospitalization for heart failure, and have been on positive inotropic therapy for more than 1 month (but less than 9 months).

The intracardiac administration of MPCs, which are derived from adult human bone marrow, were delivered by injection guided with the NOGA left ventricular electromechanical mapping system. Multiple transendocardial injections were delivered, all in a single session.

There were no differences in baseline characteristics between those receiving MPCs and those who underwent a sham procedure. In both groups, more than half of patients had a previous MI and a coronary revascularization. Nearly 85% had an implanted defibrillator. Roughly two-thirds were in NYHA class III HF and the remaining were in class II.

Over the follow-up, the lines on a graph documenting nonfatal decompensated heart failure events were largely superimposed for the MPC-treated and sham-treated patients, with no significant differences seen over time.

However, the differences on the secondary events were sizable. For the composite outcome of nonfatal MI and nonfatal stroke over a mean follow-up of about 30 months, the rate of events was less than half as great in those randomized to MPCs (4.6% vs. 13.0%). This translated into about 65% reduction in risk (HR, 0.346; P = .001) overall, and the reduction was about the same in class II or III patients.

For a composite endpoint of MACE, events in the group treated with MPCs were about one-third lower than in the sham procedure group (20.3% vs. 30.1%), a difference that also reached significance (HR, 0.667; P = .021).

For this MACE endpoint, response was evaluated by systemic inflammation. For those with a high-sensitivity C-reactive protein (hsCRP) level of less than 2 mg/L, the risk reduction was small and not significant (HR, 0.843; P = .519). Conversely, there was a large risk reduction in those with hsCRP of at least 2 mg/L that did reach statistical significance (HR, 0.551; P = .012).

Inflammation was also found to be a discriminator for time to cardiac death among the patients with NYHA class II HF. Again, there was no benefit among those with hsCRP below 2 mg/L (HR, 1.355; P = .672), but an 80% risk reduction for those with hsCRP of at least 2 mg/L (HR, 0.204; P = .005).

In class II patients with hsCRP at least 2 mg/L, there was also a 60% reduction in all-cause death (HR, 0.401; P = .027). Neither the reduction in cardiac death nor all-cause death was observed in class III HF patients whether or not they had elevated hsCRP.

These signals of benefit provide a direction for a new set of studies, but Dr. Perin said that safety analyses from the DREAM-HF trial are reassuring for further clinical development.

In addition to the fact that “treatment-emergent adverse events and serious adverse events were similar in the MPC-treated and control patients,” Dr. Perin said that MPC administration was not associated with any clinically meaningful immune responses.

MPCs were first injected into a human 15 years ago, according to Dr. Perin. While a phase 2 trial published several years ago did show an association of MPC administration with a reduction in HF-associated events as well as a reduction in adverse ventricular remodeling, the ischemic benefits observed in this trial, particularly in those with elevated hsCRP, provide a new direction for future trials.

“This turns the page in heart failure research. We now have a new mechanism to consider,” Dr. Perin said.
 

Not so fast, expert says

This might be a reasonable conclusion, but the AHA-invited discussant, Larry Allen, MD, believes there is essentially no clinical message from this trial. He reiterated multiple times that this trial was neutral with no trend for benefit on the primary outcome.

“There was benefit on the secondary outcomes of nonfatal MI or stroke, but these are not the outcomes we follow in heart failure patients,” he said, noting that benefit from regenerative therapy on ischemic events has not been a major focus of the trials that preceded DREAM-HF.

Despite these intriguing results, “patients should understand that stem cells remain experimental,” he said. For the patient, it is “more important to double down on the importance of guideline directed medical therapy,” which is still being administered at levels that are suboptimal, according to Dr. Allen, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.

“Keep up the investment” in the promise of stem cell therapy, he said, but he cautioned that some of the secondary benefits observed in DREAM-HF, such as the greater response in patients with elevated hsCRP, appear to be new observations that will require a great deal more study to validate.

Dr. Perin has a financial relationship with Mesoblast, which provided funding for the DREAM-HF trial. Dr. Allen reported no relevant conflicts of interest.

A large, multicenter, sham-controlled trial in heart failure showed no benefit at all from stem cell delivery on the primary outcome of recurrent nonfatal decompensated HF events, but the results were still promising, according to the DREAM-HF study’s principal investigator.

When added to guideline-directed medical therapy in patients with HF, a single dose of mesenchymal progenitor cells (MPC) significantly reduced major adverse cardiovascular events (MACE) – a composite of cardiac death, nonfatal MI, and nonfatal stroke – and all-cause death in New York Heart Association (NYHA) class II (but not class III patients), reported Emerson C. Perin, MD, PhD, at the American Heart Association scientific sessions.

The problem is that none of these outcomes were included in the primary endpoint, which was recurrent events because of nonfatal decompensated heart failure. On this endpoint, the hazard ratio for events by the end of follow-up was nonsignificantly but slightly increased among those randomized to MPCs rather than sham control (HR, 1.2; P = .406).

“We learned a lot in this trial,” said Dr. Perin, who is medical director of the Texas Heart Institute in Houston, acknowledging that the expectation of benefit on the primary endpoint now appears to have been misplaced, but the positive result on other outcomes opens a new research direction.

With a negative result on the primary endpoint, a benefit on secondary endpoints is considered hypothesis generating. But Dr. Perin defended his sense of overall optimism about the results, because all of the endpoints on which benefit was demonstrated were prespecified. The positive findings “are not from a post hoc analyses,” he emphasized.
 

DREAM-HF

In the trial, 537 patients with chronic ischemic or nonischemic heart failure with NYHA class II or III symptoms and a left ventricular ejection fraction of 40% or lower were randomized at 51 sites in the United States and Canada. Patients were required to have elevated N-terminal of the prohormone brain natriuretic peptide levels, at least one prior hospitalization for heart failure, and have been on positive inotropic therapy for more than 1 month (but less than 9 months).

The intracardiac administration of MPCs, which are derived from adult human bone marrow, were delivered by injection guided with the NOGA left ventricular electromechanical mapping system. Multiple transendocardial injections were delivered, all in a single session.

There were no differences in baseline characteristics between those receiving MPCs and those who underwent a sham procedure. In both groups, more than half of patients had a previous MI and a coronary revascularization. Nearly 85% had an implanted defibrillator. Roughly two-thirds were in NYHA class III HF and the remaining were in class II.

Over the follow-up, the lines on a graph documenting nonfatal decompensated heart failure events were largely superimposed for the MPC-treated and sham-treated patients, with no significant differences seen over time.

However, the differences on the secondary events were sizable. For the composite outcome of nonfatal MI and nonfatal stroke over a mean follow-up of about 30 months, the rate of events was less than half as great in those randomized to MPCs (4.6% vs. 13.0%). This translated into about 65% reduction in risk (HR, 0.346; P = .001) overall, and the reduction was about the same in class II or III patients.

For a composite endpoint of MACE, events in the group treated with MPCs were about one-third lower than in the sham procedure group (20.3% vs. 30.1%), a difference that also reached significance (HR, 0.667; P = .021).

For this MACE endpoint, response was evaluated by systemic inflammation. For those with a high-sensitivity C-reactive protein (hsCRP) level of less than 2 mg/L, the risk reduction was small and not significant (HR, 0.843; P = .519). Conversely, there was a large risk reduction in those with hsCRP of at least 2 mg/L that did reach statistical significance (HR, 0.551; P = .012).

Inflammation was also found to be a discriminator for time to cardiac death among the patients with NYHA class II HF. Again, there was no benefit among those with hsCRP below 2 mg/L (HR, 1.355; P = .672), but an 80% risk reduction for those with hsCRP of at least 2 mg/L (HR, 0.204; P = .005).

In class II patients with hsCRP at least 2 mg/L, there was also a 60% reduction in all-cause death (HR, 0.401; P = .027). Neither the reduction in cardiac death nor all-cause death was observed in class III HF patients whether or not they had elevated hsCRP.

These signals of benefit provide a direction for a new set of studies, but Dr. Perin said that safety analyses from the DREAM-HF trial are reassuring for further clinical development.

In addition to the fact that “treatment-emergent adverse events and serious adverse events were similar in the MPC-treated and control patients,” Dr. Perin said that MPC administration was not associated with any clinically meaningful immune responses.

MPCs were first injected into a human 15 years ago, according to Dr. Perin. While a phase 2 trial published several years ago did show an association of MPC administration with a reduction in HF-associated events as well as a reduction in adverse ventricular remodeling, the ischemic benefits observed in this trial, particularly in those with elevated hsCRP, provide a new direction for future trials.

“This turns the page in heart failure research. We now have a new mechanism to consider,” Dr. Perin said.
 

Not so fast, expert says

This might be a reasonable conclusion, but the AHA-invited discussant, Larry Allen, MD, believes there is essentially no clinical message from this trial. He reiterated multiple times that this trial was neutral with no trend for benefit on the primary outcome.

“There was benefit on the secondary outcomes of nonfatal MI or stroke, but these are not the outcomes we follow in heart failure patients,” he said, noting that benefit from regenerative therapy on ischemic events has not been a major focus of the trials that preceded DREAM-HF.

Despite these intriguing results, “patients should understand that stem cells remain experimental,” he said. For the patient, it is “more important to double down on the importance of guideline directed medical therapy,” which is still being administered at levels that are suboptimal, according to Dr. Allen, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.

“Keep up the investment” in the promise of stem cell therapy, he said, but he cautioned that some of the secondary benefits observed in DREAM-HF, such as the greater response in patients with elevated hsCRP, appear to be new observations that will require a great deal more study to validate.

Dr. Perin has a financial relationship with Mesoblast, which provided funding for the DREAM-HF trial. Dr. Allen reported no relevant conflicts of interest.

A large, multicenter, sham-controlled trial in heart failure showed no benefit at all from stem cell delivery on the primary outcome of recurrent nonfatal decompensated HF events, but the results were still promising, according to the DREAM-HF study’s principal investigator.

When added to guideline-directed medical therapy in patients with HF, a single dose of mesenchymal progenitor cells (MPC) significantly reduced major adverse cardiovascular events (MACE) – a composite of cardiac death, nonfatal MI, and nonfatal stroke – and all-cause death in New York Heart Association (NYHA) class II (but not class III patients), reported Emerson C. Perin, MD, PhD, at the American Heart Association scientific sessions.

The problem is that none of these outcomes were included in the primary endpoint, which was recurrent events because of nonfatal decompensated heart failure. On this endpoint, the hazard ratio for events by the end of follow-up was nonsignificantly but slightly increased among those randomized to MPCs rather than sham control (HR, 1.2; P = .406).

“We learned a lot in this trial,” said Dr. Perin, who is medical director of the Texas Heart Institute in Houston, acknowledging that the expectation of benefit on the primary endpoint now appears to have been misplaced, but the positive result on other outcomes opens a new research direction.

With a negative result on the primary endpoint, a benefit on secondary endpoints is considered hypothesis generating. But Dr. Perin defended his sense of overall optimism about the results, because all of the endpoints on which benefit was demonstrated were prespecified. The positive findings “are not from a post hoc analyses,” he emphasized.
 

DREAM-HF

In the trial, 537 patients with chronic ischemic or nonischemic heart failure with NYHA class II or III symptoms and a left ventricular ejection fraction of 40% or lower were randomized at 51 sites in the United States and Canada. Patients were required to have elevated N-terminal of the prohormone brain natriuretic peptide levels, at least one prior hospitalization for heart failure, and have been on positive inotropic therapy for more than 1 month (but less than 9 months).

The intracardiac administration of MPCs, which are derived from adult human bone marrow, were delivered by injection guided with the NOGA left ventricular electromechanical mapping system. Multiple transendocardial injections were delivered, all in a single session.

There were no differences in baseline characteristics between those receiving MPCs and those who underwent a sham procedure. In both groups, more than half of patients had a previous MI and a coronary revascularization. Nearly 85% had an implanted defibrillator. Roughly two-thirds were in NYHA class III HF and the remaining were in class II.

Over the follow-up, the lines on a graph documenting nonfatal decompensated heart failure events were largely superimposed for the MPC-treated and sham-treated patients, with no significant differences seen over time.

However, the differences on the secondary events were sizable. For the composite outcome of nonfatal MI and nonfatal stroke over a mean follow-up of about 30 months, the rate of events was less than half as great in those randomized to MPCs (4.6% vs. 13.0%). This translated into about 65% reduction in risk (HR, 0.346; P = .001) overall, and the reduction was about the same in class II or III patients.

For a composite endpoint of MACE, events in the group treated with MPCs were about one-third lower than in the sham procedure group (20.3% vs. 30.1%), a difference that also reached significance (HR, 0.667; P = .021).

For this MACE endpoint, response was evaluated by systemic inflammation. For those with a high-sensitivity C-reactive protein (hsCRP) level of less than 2 mg/L, the risk reduction was small and not significant (HR, 0.843; P = .519). Conversely, there was a large risk reduction in those with hsCRP of at least 2 mg/L that did reach statistical significance (HR, 0.551; P = .012).

Inflammation was also found to be a discriminator for time to cardiac death among the patients with NYHA class II HF. Again, there was no benefit among those with hsCRP below 2 mg/L (HR, 1.355; P = .672), but an 80% risk reduction for those with hsCRP of at least 2 mg/L (HR, 0.204; P = .005).

In class II patients with hsCRP at least 2 mg/L, there was also a 60% reduction in all-cause death (HR, 0.401; P = .027). Neither the reduction in cardiac death nor all-cause death was observed in class III HF patients whether or not they had elevated hsCRP.

These signals of benefit provide a direction for a new set of studies, but Dr. Perin said that safety analyses from the DREAM-HF trial are reassuring for further clinical development.

In addition to the fact that “treatment-emergent adverse events and serious adverse events were similar in the MPC-treated and control patients,” Dr. Perin said that MPC administration was not associated with any clinically meaningful immune responses.

MPCs were first injected into a human 15 years ago, according to Dr. Perin. While a phase 2 trial published several years ago did show an association of MPC administration with a reduction in HF-associated events as well as a reduction in adverse ventricular remodeling, the ischemic benefits observed in this trial, particularly in those with elevated hsCRP, provide a new direction for future trials.

“This turns the page in heart failure research. We now have a new mechanism to consider,” Dr. Perin said.
 

Not so fast, expert says

This might be a reasonable conclusion, but the AHA-invited discussant, Larry Allen, MD, believes there is essentially no clinical message from this trial. He reiterated multiple times that this trial was neutral with no trend for benefit on the primary outcome.

“There was benefit on the secondary outcomes of nonfatal MI or stroke, but these are not the outcomes we follow in heart failure patients,” he said, noting that benefit from regenerative therapy on ischemic events has not been a major focus of the trials that preceded DREAM-HF.

Despite these intriguing results, “patients should understand that stem cells remain experimental,” he said. For the patient, it is “more important to double down on the importance of guideline directed medical therapy,” which is still being administered at levels that are suboptimal, according to Dr. Allen, medical director of advanced heart failure at the University of Colorado at Denver, Aurora.

“Keep up the investment” in the promise of stem cell therapy, he said, but he cautioned that some of the secondary benefits observed in DREAM-HF, such as the greater response in patients with elevated hsCRP, appear to be new observations that will require a great deal more study to validate.

Dr. Perin has a financial relationship with Mesoblast, which provided funding for the DREAM-HF trial. Dr. Allen reported no relevant conflicts of interest.

When provided at the bedside of patients hospitalized for heart failure, an electronic health record (EHR) alert with prognostic information did not improve outcomes or appear to have any impact on what treatments were offered.

There was no signal that the EHR prognostic alerts, which identified the 12-month risk of mortality, had any impact on any of a variety of clinical-decision-making metrics or on any of the primary or secondary outcomes, according to Tariq Ahmad, MD, who reported results of the randomized REVEAL-HF trial, presented at the American Heart Association scientific sessions.

“These results call into question the hypothesis that accurate prognostic information alone will lead to better clinical decision-making,” said Dr. Ahmad, medical director of the Heart Transplant and Mechanical Circulatory Support Program at Yale University, New Haven, Conn., and principal investigator of REVEAL-HF.

He acknowledged that the possibility that many clinicians pay little or no attention to EHR alert might have played a role in the negative results.

At four participating Yale-affiliated clinical centers, all patients hospitalized for acute heart failure were randomized as long as they were over the age of 18, had an N-terminal pro-brain natriuretic peptide (NT-proBNP) level above 500 pg/mL, and had been placed on IV diuretics within 24 hours of admission. In the experimental arm, the provider at the time of entering orders received an EHR alert with an estimate of the risk of all-cause mortality at 12 months. There was no such alert for patients managed in the control arm.
 

Twelve-month mortality estimates calculated

The all-cause mortality risk was calculated on a sizeable list of variables that included laboratory results, such as cell counts, and patient characteristics, such as weight and age. The risk estimate was displayed along with a five-category color-coded bar to provide context for the risk in the spectrum of very low, low, medium, high, and very high likelihood of death within 12 months.

The 1,590 patients randomized to the experimental arm and the 1,534 patients randomized to the usual care arm did not differ significantly in any baseline characteristics. The median age was about 77 years, the mean left ventricular ejection fraction (LVEF) was 55%. About 29% had an LVEF below 40%, about 40% had chronic kidney disease, and about 30% had chronic obstructive pulmonary disease (COPD).

The composite primary outcome of all-cause mortality or rehospitalization within 12 months was reached by 38.9% and 39.3% (P = 0.82) of the intervention and control arms, respectively. The components of the primary outcome were also nearly identical, as was inpatient mortality (8.4% vs. 8.8%; P = 0.72).

There were no significant differences in any of the secondary outcomes, which included rates of 30-day rehospitalizations, discharge on guideline-recommended heart failure therapies, implantation of a cardioverter defibrillator, use of a left ventricular assist device, or heart transplant.

The proportion of patients referred for palliative care was almost identical in the very low, low, and medium risk groups. In the high (23.4 vs. 15.6; P = 0.19) and very high (50% vs. 40%; P = 0.92) groups, there were numerically more referrals in the group randomized to usual care, but these rates did not reach significance.
 

No differences seen in discharge meds

There was essentially no difference between groups in the rates at which patients were discharged on beta-blockers, renin-angiotensin system inhibitors, sodium-glucose co-transporter type 2 (SGLT2) inhibitors, or mineralocorticoid antagonists.

When prespecified subgroups, such as those older than age 75 years relative to those younger, males relative to females, Black versus White participants, patients with reduced ejection fraction (HFrEF) relative to preserved ejection fraction (HFpEF), and intensive care unit versus non-ICU patients, were compared, there were no indications that the EHR alert improved outcomes.

Invited discussant Harriette G. C. Van Spall, MD, director of digital health and virtual care and associate professor of cardiology at McMaster University, Hamilton, Ont., did not dispute the conclusions, but she pointed out several potential explanations for the neutral result.

Not least, nearly 75% of those enrolled had low risk or very low risk for adverse outcomes within 1 year, so the opportunity to show a reduction in events, including all-cause mortality, was limited.

“This was largely a HFpEF population, for which there are no treatments for which a risk score would change therapy,” she said.
 

EHR alert efficacy questioned

There is considerable evidence that risk prediction tools “are common but underutilized in HF,” Dr. Van Spall added. She noted that many clinicians find alerts in the EHR more annoying than informative, and it remains unknown what proportion of clinicians pay attention to them, particularly in the absence of evidence that they lead to meaningful improvements in care over their own clinical judgment.

Dr. Ahmad agreed.

“I think that we need to study these alerts in a clinical trial format,” he said. Acknowledging that alerts have been poorly received by many clinicians, Dr. Ahmad said that trials to validate the impact of any specific alert are needed to improve their credibility. If a positive impact cannot be shown, he said the alert should be eliminated, leaving only the alerts with proven clinical value.

Dr. Ahmad reported financial relationships with Amgen, AstraZeneca, Boehringer Ingelheim, Cytokinetics, Novartis, and Relypsa. Dr. Van Spall reports no potential conflicts of interest.

When provided at the bedside of patients hospitalized for heart failure, an electronic health record (EHR) alert with prognostic information did not improve outcomes or appear to have any impact on what treatments were offered.

There was no signal that the EHR prognostic alerts, which identified the 12-month risk of mortality, had any impact on any of a variety of clinical-decision-making metrics or on any of the primary or secondary outcomes, according to Tariq Ahmad, MD, who reported results of the randomized REVEAL-HF trial, presented at the American Heart Association scientific sessions.

“These results call into question the hypothesis that accurate prognostic information alone will lead to better clinical decision-making,” said Dr. Ahmad, medical director of the Heart Transplant and Mechanical Circulatory Support Program at Yale University, New Haven, Conn., and principal investigator of REVEAL-HF.

He acknowledged that the possibility that many clinicians pay little or no attention to EHR alert might have played a role in the negative results.

At four participating Yale-affiliated clinical centers, all patients hospitalized for acute heart failure were randomized as long as they were over the age of 18, had an N-terminal pro-brain natriuretic peptide (NT-proBNP) level above 500 pg/mL, and had been placed on IV diuretics within 24 hours of admission. In the experimental arm, the provider at the time of entering orders received an EHR alert with an estimate of the risk of all-cause mortality at 12 months. There was no such alert for patients managed in the control arm.
 

Twelve-month mortality estimates calculated

The all-cause mortality risk was calculated on a sizeable list of variables that included laboratory results, such as cell counts, and patient characteristics, such as weight and age. The risk estimate was displayed along with a five-category color-coded bar to provide context for the risk in the spectrum of very low, low, medium, high, and very high likelihood of death within 12 months.

The 1,590 patients randomized to the experimental arm and the 1,534 patients randomized to the usual care arm did not differ significantly in any baseline characteristics. The median age was about 77 years, the mean left ventricular ejection fraction (LVEF) was 55%. About 29% had an LVEF below 40%, about 40% had chronic kidney disease, and about 30% had chronic obstructive pulmonary disease (COPD).

The composite primary outcome of all-cause mortality or rehospitalization within 12 months was reached by 38.9% and 39.3% (P = 0.82) of the intervention and control arms, respectively. The components of the primary outcome were also nearly identical, as was inpatient mortality (8.4% vs. 8.8%; P = 0.72).

There were no significant differences in any of the secondary outcomes, which included rates of 30-day rehospitalizations, discharge on guideline-recommended heart failure therapies, implantation of a cardioverter defibrillator, use of a left ventricular assist device, or heart transplant.

The proportion of patients referred for palliative care was almost identical in the very low, low, and medium risk groups. In the high (23.4 vs. 15.6; P = 0.19) and very high (50% vs. 40%; P = 0.92) groups, there were numerically more referrals in the group randomized to usual care, but these rates did not reach significance.
 

No differences seen in discharge meds

There was essentially no difference between groups in the rates at which patients were discharged on beta-blockers, renin-angiotensin system inhibitors, sodium-glucose co-transporter type 2 (SGLT2) inhibitors, or mineralocorticoid antagonists.

When prespecified subgroups, such as those older than age 75 years relative to those younger, males relative to females, Black versus White participants, patients with reduced ejection fraction (HFrEF) relative to preserved ejection fraction (HFpEF), and intensive care unit versus non-ICU patients, were compared, there were no indications that the EHR alert improved outcomes.

Invited discussant Harriette G. C. Van Spall, MD, director of digital health and virtual care and associate professor of cardiology at McMaster University, Hamilton, Ont., did not dispute the conclusions, but she pointed out several potential explanations for the neutral result.

Not least, nearly 75% of those enrolled had low risk or very low risk for adverse outcomes within 1 year, so the opportunity to show a reduction in events, including all-cause mortality, was limited.

“This was largely a HFpEF population, for which there are no treatments for which a risk score would change therapy,” she said.
 

EHR alert efficacy questioned

There is considerable evidence that risk prediction tools “are common but underutilized in HF,” Dr. Van Spall added. She noted that many clinicians find alerts in the EHR more annoying than informative, and it remains unknown what proportion of clinicians pay attention to them, particularly in the absence of evidence that they lead to meaningful improvements in care over their own clinical judgment.

Dr. Ahmad agreed.

“I think that we need to study these alerts in a clinical trial format,” he said. Acknowledging that alerts have been poorly received by many clinicians, Dr. Ahmad said that trials to validate the impact of any specific alert are needed to improve their credibility. If a positive impact cannot be shown, he said the alert should be eliminated, leaving only the alerts with proven clinical value.

Dr. Ahmad reported financial relationships with Amgen, AstraZeneca, Boehringer Ingelheim, Cytokinetics, Novartis, and Relypsa. Dr. Van Spall reports no potential conflicts of interest.

When provided at the bedside of patients hospitalized for heart failure, an electronic health record (EHR) alert with prognostic information did not improve outcomes or appear to have any impact on what treatments were offered.

There was no signal that the EHR prognostic alerts, which identified the 12-month risk of mortality, had any impact on any of a variety of clinical-decision-making metrics or on any of the primary or secondary outcomes, according to Tariq Ahmad, MD, who reported results of the randomized REVEAL-HF trial, presented at the American Heart Association scientific sessions.

“These results call into question the hypothesis that accurate prognostic information alone will lead to better clinical decision-making,” said Dr. Ahmad, medical director of the Heart Transplant and Mechanical Circulatory Support Program at Yale University, New Haven, Conn., and principal investigator of REVEAL-HF.

He acknowledged that the possibility that many clinicians pay little or no attention to EHR alert might have played a role in the negative results.

At four participating Yale-affiliated clinical centers, all patients hospitalized for acute heart failure were randomized as long as they were over the age of 18, had an N-terminal pro-brain natriuretic peptide (NT-proBNP) level above 500 pg/mL, and had been placed on IV diuretics within 24 hours of admission. In the experimental arm, the provider at the time of entering orders received an EHR alert with an estimate of the risk of all-cause mortality at 12 months. There was no such alert for patients managed in the control arm.
 

Twelve-month mortality estimates calculated

The all-cause mortality risk was calculated on a sizeable list of variables that included laboratory results, such as cell counts, and patient characteristics, such as weight and age. The risk estimate was displayed along with a five-category color-coded bar to provide context for the risk in the spectrum of very low, low, medium, high, and very high likelihood of death within 12 months.

The 1,590 patients randomized to the experimental arm and the 1,534 patients randomized to the usual care arm did not differ significantly in any baseline characteristics. The median age was about 77 years, the mean left ventricular ejection fraction (LVEF) was 55%. About 29% had an LVEF below 40%, about 40% had chronic kidney disease, and about 30% had chronic obstructive pulmonary disease (COPD).

The composite primary outcome of all-cause mortality or rehospitalization within 12 months was reached by 38.9% and 39.3% (P = 0.82) of the intervention and control arms, respectively. The components of the primary outcome were also nearly identical, as was inpatient mortality (8.4% vs. 8.8%; P = 0.72).

There were no significant differences in any of the secondary outcomes, which included rates of 30-day rehospitalizations, discharge on guideline-recommended heart failure therapies, implantation of a cardioverter defibrillator, use of a left ventricular assist device, or heart transplant.

The proportion of patients referred for palliative care was almost identical in the very low, low, and medium risk groups. In the high (23.4 vs. 15.6; P = 0.19) and very high (50% vs. 40%; P = 0.92) groups, there were numerically more referrals in the group randomized to usual care, but these rates did not reach significance.
 

No differences seen in discharge meds

There was essentially no difference between groups in the rates at which patients were discharged on beta-blockers, renin-angiotensin system inhibitors, sodium-glucose co-transporter type 2 (SGLT2) inhibitors, or mineralocorticoid antagonists.

When prespecified subgroups, such as those older than age 75 years relative to those younger, males relative to females, Black versus White participants, patients with reduced ejection fraction (HFrEF) relative to preserved ejection fraction (HFpEF), and intensive care unit versus non-ICU patients, were compared, there were no indications that the EHR alert improved outcomes.

Invited discussant Harriette G. C. Van Spall, MD, director of digital health and virtual care and associate professor of cardiology at McMaster University, Hamilton, Ont., did not dispute the conclusions, but she pointed out several potential explanations for the neutral result.

Not least, nearly 75% of those enrolled had low risk or very low risk for adverse outcomes within 1 year, so the opportunity to show a reduction in events, including all-cause mortality, was limited.

“This was largely a HFpEF population, for which there are no treatments for which a risk score would change therapy,” she said.
 

EHR alert efficacy questioned

There is considerable evidence that risk prediction tools “are common but underutilized in HF,” Dr. Van Spall added. She noted that many clinicians find alerts in the EHR more annoying than informative, and it remains unknown what proportion of clinicians pay attention to them, particularly in the absence of evidence that they lead to meaningful improvements in care over their own clinical judgment.

Dr. Ahmad agreed.

“I think that we need to study these alerts in a clinical trial format,” he said. Acknowledging that alerts have been poorly received by many clinicians, Dr. Ahmad said that trials to validate the impact of any specific alert are needed to improve their credibility. If a positive impact cannot be shown, he said the alert should be eliminated, leaving only the alerts with proven clinical value.

Dr. Ahmad reported financial relationships with Amgen, AstraZeneca, Boehringer Ingelheim, Cytokinetics, Novartis, and Relypsa. Dr. Van Spall reports no potential conflicts of interest.

In patients treated for persistent atrial fibrillation (AFib) with pulmonary vein antral isolation (PVAI), there was a numerical but not a statistical advantage for adjunctive left atrial appendage (LAA) ligation in a multicenter randomized trial.

SilkenOne/Thinkstock.com

The study, called aMAZE, was conducted with the LARIAT LAA (AtriCure) ligation system. AtriCure announced in August that the primary efficacy endpoint was not met; the full results were presented Nov. 14 at the American Heart Association scientific sessions.

Exploratory analyses suggested that some subgroups might benefit, but the overall 4.3% advantage provided by adjunctive LAA ligation for freedom from atrial arrhythmias (AA) at 12 months “did not meet predefined criteria for superiority,” according to coprincipal investigator David J. Wilber, MD.

Based on evidence that the LAA contributes substrate for generation of persistent AFib, the hypothesis of the study was that LAA ligation would improve on long-term rhythm control achieved with PVAI alone, which Dr. Wilber noted is currently suboptimal. The LARIAT device is deployed percutaneously into the LAA sac, where it seals off the opening to the left atrium, potentially blocking a pathway for rhythm disturbances.

The study randomized 610 patients at 53 sites in the United States in a 2:1 ratio to LARIAT LAA ligation plus PVAI or to PVAI alone. Enrollment criteria included longstanding persistent and symptomatic AFib and prior failure of ablation therapy. AA was defined as freedom from more than 30 seconds of AFib, atrial flutter, or atrial tachycardia 12 months after treatment without new or increased dosages of antiarrhythmia therapy.

The primary safety endpoint was a composite of serious adverse events within 30 days of placement of the LARIAT device. Technical success was defined as ≤1 mm (+/– 1 mm) residual communication between the LAA and the left atrium.

At 12 months, AA was achieved in 59.9% of those treated with PVAI alone and 64.3% in those who received the LARIAT ligation procedure in addition to PVAI. The P value for superiority was not significant (P = .835).

At 3.4%, the incidence of serious events at 30 days was considered reasonable, leading Dr. Wilber, director of electrophysiology at Loyola University in Chicago, to conclude that the LARIAT system “appears safe.” Overall, bleeding events requiring intervention occurred in 2.2%, cardiac structural injuries requiring surgery occurred in 0.8%, and vascular injuries requiring surgery occurred in 0.3%.

Technical success at 30 days was achieved by the study definition in 81%. If defined as a residual communication of 5 mm or less, the technical success rate was 99%.

Two groups appeared to potentially benefit in exploratory analyses. When stratified by AFib duration, there was a relative 7.5% reduction in AA for those who received LARIAT plus PVAI relative to PVAI alone. This trended towards statistical significance (P = .084), but no advantage was seen for those with longer duration of AFib.

For those with a median volume of at least133 cm³, the advantage of LARIAT for the primary endpoint was 12.4%. This also trended toward significance (P = .093). Conversely, there was a numerical disadvantage for LARIAT plus PVAI relative to PVAI alone for AA at 12 months.

While Dr. Wilber stressed that these analyses were not prespecified and require further exploration, he did conclude that strategies to build on the current success of PVAI with adjunctive strategies “may require some individualization,” taking into account patient or disease characteristics that exert an impact on risk of recurrent AA.

As an AHA-invited discussant on this trial, Usha B. Tedrow, MD, director of the clinical cardiac electrophysiology fellowship at Brigham and Women’s Hospital, Boston, reiterated that this study failed to meet its primary endpoint, but she agreed with the premise that “some subgroups may benefit.”

She identified several aspects of AFib pathophysiology involving the pulmonary vein and the LAA as well as prior studies that suggest the LAA might be a target for adjunctive therapy in patients treated with PVAI for persistent AFib. On this basis, she suggested that there might be other directions to explore before ruling out a role of the LARIAT device in all patients. For example, PVAI plus LARIAT ligation plus another adjunctive ablation intervention might be considered to add durable rhythm control.

She also said that the rigorous conduct of the aMAZE trial might have been a relative obstacle to its own success. Although she praised the meticulous design and conduct of the trial, it might have resulted in an uncommon benefit in controls that diluted the results.

“The success rate in the PVAI group in aMAZE was higher than standard ablation in previous studies looking at LAA exclusion. Could the strict protocol have played a role?” she asked.

Dr. Wilbur reports financial relationships with Abbott, Biosense Webster, Boston Scientific, and AtriCure, which provided funding for this study. Dr. Tedrow reports financial relationships with Abbott, Baylis Medical, Boston Scientific, Biosense Webster, and Thermedical.

In patients treated for persistent atrial fibrillation (AFib) with pulmonary vein antral isolation (PVAI), there was a numerical but not a statistical advantage for adjunctive left atrial appendage (LAA) ligation in a multicenter randomized trial.

SilkenOne/Thinkstock.com

The study, called aMAZE, was conducted with the LARIAT LAA (AtriCure) ligation system. AtriCure announced in August that the primary efficacy endpoint was not met; the full results were presented Nov. 14 at the American Heart Association scientific sessions.

Exploratory analyses suggested that some subgroups might benefit, but the overall 4.3% advantage provided by adjunctive LAA ligation for freedom from atrial arrhythmias (AA) at 12 months “did not meet predefined criteria for superiority,” according to coprincipal investigator David J. Wilber, MD.

Based on evidence that the LAA contributes substrate for generation of persistent AFib, the hypothesis of the study was that LAA ligation would improve on long-term rhythm control achieved with PVAI alone, which Dr. Wilber noted is currently suboptimal. The LARIAT device is deployed percutaneously into the LAA sac, where it seals off the opening to the left atrium, potentially blocking a pathway for rhythm disturbances.

The study randomized 610 patients at 53 sites in the United States in a 2:1 ratio to LARIAT LAA ligation plus PVAI or to PVAI alone. Enrollment criteria included longstanding persistent and symptomatic AFib and prior failure of ablation therapy. AA was defined as freedom from more than 30 seconds of AFib, atrial flutter, or atrial tachycardia 12 months after treatment without new or increased dosages of antiarrhythmia therapy.

The primary safety endpoint was a composite of serious adverse events within 30 days of placement of the LARIAT device. Technical success was defined as ≤1 mm (+/– 1 mm) residual communication between the LAA and the left atrium.

At 12 months, AA was achieved in 59.9% of those treated with PVAI alone and 64.3% in those who received the LARIAT ligation procedure in addition to PVAI. The P value for superiority was not significant (P = .835).

At 3.4%, the incidence of serious events at 30 days was considered reasonable, leading Dr. Wilber, director of electrophysiology at Loyola University in Chicago, to conclude that the LARIAT system “appears safe.” Overall, bleeding events requiring intervention occurred in 2.2%, cardiac structural injuries requiring surgery occurred in 0.8%, and vascular injuries requiring surgery occurred in 0.3%.

Technical success at 30 days was achieved by the study definition in 81%. If defined as a residual communication of 5 mm or less, the technical success rate was 99%.

Two groups appeared to potentially benefit in exploratory analyses. When stratified by AFib duration, there was a relative 7.5% reduction in AA for those who received LARIAT plus PVAI relative to PVAI alone. This trended towards statistical significance (P = .084), but no advantage was seen for those with longer duration of AFib.

For those with a median volume of at least133 cm³, the advantage of LARIAT for the primary endpoint was 12.4%. This also trended toward significance (P = .093). Conversely, there was a numerical disadvantage for LARIAT plus PVAI relative to PVAI alone for AA at 12 months.

While Dr. Wilber stressed that these analyses were not prespecified and require further exploration, he did conclude that strategies to build on the current success of PVAI with adjunctive strategies “may require some individualization,” taking into account patient or disease characteristics that exert an impact on risk of recurrent AA.

As an AHA-invited discussant on this trial, Usha B. Tedrow, MD, director of the clinical cardiac electrophysiology fellowship at Brigham and Women’s Hospital, Boston, reiterated that this study failed to meet its primary endpoint, but she agreed with the premise that “some subgroups may benefit.”

She identified several aspects of AFib pathophysiology involving the pulmonary vein and the LAA as well as prior studies that suggest the LAA might be a target for adjunctive therapy in patients treated with PVAI for persistent AFib. On this basis, she suggested that there might be other directions to explore before ruling out a role of the LARIAT device in all patients. For example, PVAI plus LARIAT ligation plus another adjunctive ablation intervention might be considered to add durable rhythm control.

She also said that the rigorous conduct of the aMAZE trial might have been a relative obstacle to its own success. Although she praised the meticulous design and conduct of the trial, it might have resulted in an uncommon benefit in controls that diluted the results.

“The success rate in the PVAI group in aMAZE was higher than standard ablation in previous studies looking at LAA exclusion. Could the strict protocol have played a role?” she asked.

Dr. Wilbur reports financial relationships with Abbott, Biosense Webster, Boston Scientific, and AtriCure, which provided funding for this study. Dr. Tedrow reports financial relationships with Abbott, Baylis Medical, Boston Scientific, Biosense Webster, and Thermedical.

In patients treated for persistent atrial fibrillation (AFib) with pulmonary vein antral isolation (PVAI), there was a numerical but not a statistical advantage for adjunctive left atrial appendage (LAA) ligation in a multicenter randomized trial.

SilkenOne/Thinkstock.com

The study, called aMAZE, was conducted with the LARIAT LAA (AtriCure) ligation system. AtriCure announced in August that the primary efficacy endpoint was not met; the full results were presented Nov. 14 at the American Heart Association scientific sessions.

Exploratory analyses suggested that some subgroups might benefit, but the overall 4.3% advantage provided by adjunctive LAA ligation for freedom from atrial arrhythmias (AA) at 12 months “did not meet predefined criteria for superiority,” according to coprincipal investigator David J. Wilber, MD.

Based on evidence that the LAA contributes substrate for generation of persistent AFib, the hypothesis of the study was that LAA ligation would improve on long-term rhythm control achieved with PVAI alone, which Dr. Wilber noted is currently suboptimal. The LARIAT device is deployed percutaneously into the LAA sac, where it seals off the opening to the left atrium, potentially blocking a pathway for rhythm disturbances.

The study randomized 610 patients at 53 sites in the United States in a 2:1 ratio to LARIAT LAA ligation plus PVAI or to PVAI alone. Enrollment criteria included longstanding persistent and symptomatic AFib and prior failure of ablation therapy. AA was defined as freedom from more than 30 seconds of AFib, atrial flutter, or atrial tachycardia 12 months after treatment without new or increased dosages of antiarrhythmia therapy.

The primary safety endpoint was a composite of serious adverse events within 30 days of placement of the LARIAT device. Technical success was defined as ≤1 mm (+/– 1 mm) residual communication between the LAA and the left atrium.

At 12 months, AA was achieved in 59.9% of those treated with PVAI alone and 64.3% in those who received the LARIAT ligation procedure in addition to PVAI. The P value for superiority was not significant (P = .835).

At 3.4%, the incidence of serious events at 30 days was considered reasonable, leading Dr. Wilber, director of electrophysiology at Loyola University in Chicago, to conclude that the LARIAT system “appears safe.” Overall, bleeding events requiring intervention occurred in 2.2%, cardiac structural injuries requiring surgery occurred in 0.8%, and vascular injuries requiring surgery occurred in 0.3%.

Technical success at 30 days was achieved by the study definition in 81%. If defined as a residual communication of 5 mm or less, the technical success rate was 99%.

Two groups appeared to potentially benefit in exploratory analyses. When stratified by AFib duration, there was a relative 7.5% reduction in AA for those who received LARIAT plus PVAI relative to PVAI alone. This trended towards statistical significance (P = .084), but no advantage was seen for those with longer duration of AFib.

For those with a median volume of at least133 cm³, the advantage of LARIAT for the primary endpoint was 12.4%. This also trended toward significance (P = .093). Conversely, there was a numerical disadvantage for LARIAT plus PVAI relative to PVAI alone for AA at 12 months.

While Dr. Wilber stressed that these analyses were not prespecified and require further exploration, he did conclude that strategies to build on the current success of PVAI with adjunctive strategies “may require some individualization,” taking into account patient or disease characteristics that exert an impact on risk of recurrent AA.

As an AHA-invited discussant on this trial, Usha B. Tedrow, MD, director of the clinical cardiac electrophysiology fellowship at Brigham and Women’s Hospital, Boston, reiterated that this study failed to meet its primary endpoint, but she agreed with the premise that “some subgroups may benefit.”

She identified several aspects of AFib pathophysiology involving the pulmonary vein and the LAA as well as prior studies that suggest the LAA might be a target for adjunctive therapy in patients treated with PVAI for persistent AFib. On this basis, she suggested that there might be other directions to explore before ruling out a role of the LARIAT device in all patients. For example, PVAI plus LARIAT ligation plus another adjunctive ablation intervention might be considered to add durable rhythm control.

She also said that the rigorous conduct of the aMAZE trial might have been a relative obstacle to its own success. Although she praised the meticulous design and conduct of the trial, it might have resulted in an uncommon benefit in controls that diluted the results.

“The success rate in the PVAI group in aMAZE was higher than standard ablation in previous studies looking at LAA exclusion. Could the strict protocol have played a role?” she asked.

Dr. Wilbur reports financial relationships with Abbott, Biosense Webster, Boston Scientific, and AtriCure, which provided funding for this study. Dr. Tedrow reports financial relationships with Abbott, Baylis Medical, Boston Scientific, Biosense Webster, and Thermedical.

The proportion of hypertensive patients with blood pressure control fell substantially in the United States during the COVID-19 pandemic, if the data from 24 health systems is representative of national trends.

GlobalStock/Getty Images

The decline in blood pressure control corresponded with – and might be explained by – a parallel decline in follow-up visits for uncontrolled hypertension from the same data source, according to Alanna M. Chamberlain, PhD, associate professor of epidemiology in the division of quantitative health sciences, Mayo Clinic, Rochester, Minn.

If the data are representative, a wave of cardiovascular (CV) events might be coming.

The study, called BP Track, collated electronic medical data on almost 1.8 million patients with hypertension from 2017 through 2020. Up until the end of 2019 and prior to the pandemic, slightly less than 60% of these patients had blood pressure control, defined as less than 140/90 mm Hg.

While the pre-COVID control rates were already “suboptimal,” a decline began almost immediately when the full force of the COVID-19 pandemic began in March of 2020, said Dr. Chamberlain in reporting the BP Track results at the American Heart Association scientific sessions.

When graphed from the start of the pandemic until the end of 2020, the proportion under control fell 7.2% to a level just above 50%. For the more rigorous target of less than 130/80 mm Hg, the proportion fell 4.6% over the same period of time, leaving only about 25% at that level of control.

Repeat visits for BP control rebounded

The proportion of patients with a repeat office visit within 4 weeks of a diagnosis of uncontrolled hypertension fell even more steeply, reaching a nadir at about the middle of 2020, but it was followed by a partial recovery. The rate was 5% lower by the end of 2020, relative to the prepandemic rate (31.7% vs. 36.7%), but that was 5% higher than the nadir.

A similar phenomenon was observed with several other metrics. For example, there was a steep, immediate fall correlating with the onset of the pandemic in the proportion of patients who achieved at least a 10–mm Hg reduction or a BP under 140/90 mm Hg when treated for hypertension. Again, the nadir in this proportion was reached in about mid-2020 followed by a partial recovery. By the end of 2020, 5.9% fewer patients were achieving 10–mm Hg or better improvement in BP control when treated relative to the prepandemic level (23.8% vs. 29.7%), but this level was almost 10% higher than the nadir.

Data based on electronic medical records

The nearly 1.8 million patient records evaluated in the BP Track study were drawn from the 24 centers participating in the PCORnet Blood Pressure Control Laboratory Surveillance System. Nationally distributed, 18 of the 24 systems were academically affiliated.

When stratified by race, the proportion of Asians meeting the definition of BP control prior to the pandemic was about 5% higher than the overall average, and the proportion in Blacks was more than 5% lower. Whites had rates of blood pressure control very near the average. The relative declines in BP and the proportion of patients with uncontrolled blood pressure who had a repeat visit within 4 weeks during the pandemic were generally parallel across racial groups.

The implications of these data and the role of the COVID-19 pandemic on blood pressure control are “concerning,” according to Adam Bress, PharmD, department of population health sciences, University of Utah, Salt Lake City.

Citing a study published in 2020 that suggested blood pressure control rates in the United States were already declining before the COVID-19 pandemic, he said the COVID-19 epidemic appears to be exacerbating an existing problem. He expressed particular concern for populations who already have low rates of control, such as African Americans.

“The impact of COVID-19 is likely to be disproportionately greater for underserved and minoritized patients,” said Dr. Bress, who was the lead author of a recent article on this specific topic.

The implication of BP Track is that a wave of cardiovascular events will be coming if the data are nationally representative.

“A recent meta-analysis shows that each 5–mm Hg reduction in blood pressure is associated with age-related reductions in CV events,” Dr. Bress said. For those 55 years of age or older, he said the risk reduction is about 10%. Given that the inverse is almost certainly true, he expects diminishing blood pressure control, whether COVID-19-related or not, to translate into increased CV events.

However, there is no guarantee that the BP Track data are representative of the U.S. population, cautioned Eugene Yang, MD, professor in the division of cardiology, University of Washington, Seattle. Even though a large group of patients was included, they were largely drawn from academic centers.

Nevertheless, Dr. Yang, who chairs the Hypertension Working Group of the American College of Cardiology’s Prevention of Cardiovascular Disease Council, acknowledged that the implications are “scary.”

If the data are representative, “this type of reduction in blood pressure control would be expected to have a significant impact on morbidity and mortality, but we also have to think of all the variables that were not tracked and might add to risk,” he said. He named such risk factors as weight gain, diminished exercise, and increased alcohol consumption, which have been cited by others as being exacerbated by the pandemic.

If these lead to more cardiovascular events on a population basis, the timing of these events would be expected to be age dependent.

“If you look at the patients included in this study, about 50% were 65 years of age or older. In a population like this you would expect to see an increase in events sooner rather than later,” said Dr. Wang.

In other words, if the trial is representative, a wave of cardiovascular events might be seen in the most vulnerable patients “within the next few years,” Dr. Yang speculated.

Dr. Chamberlain reports a research grant from EpidStrategies. Dr. Bress and Dr. Yang report no potential financial conflicts of interest.

The proportion of hypertensive patients with blood pressure control fell substantially in the United States during the COVID-19 pandemic, if the data from 24 health systems is representative of national trends.

GlobalStock/Getty Images

The decline in blood pressure control corresponded with – and might be explained by – a parallel decline in follow-up visits for uncontrolled hypertension from the same data source, according to Alanna M. Chamberlain, PhD, associate professor of epidemiology in the division of quantitative health sciences, Mayo Clinic, Rochester, Minn.

If the data are representative, a wave of cardiovascular (CV) events might be coming.

The study, called BP Track, collated electronic medical data on almost 1.8 million patients with hypertension from 2017 through 2020. Up until the end of 2019 and prior to the pandemic, slightly less than 60% of these patients had blood pressure control, defined as less than 140/90 mm Hg.

While the pre-COVID control rates were already “suboptimal,” a decline began almost immediately when the full force of the COVID-19 pandemic began in March of 2020, said Dr. Chamberlain in reporting the BP Track results at the American Heart Association scientific sessions.

When graphed from the start of the pandemic until the end of 2020, the proportion under control fell 7.2% to a level just above 50%. For the more rigorous target of less than 130/80 mm Hg, the proportion fell 4.6% over the same period of time, leaving only about 25% at that level of control.

Repeat visits for BP control rebounded

The proportion of patients with a repeat office visit within 4 weeks of a diagnosis of uncontrolled hypertension fell even more steeply, reaching a nadir at about the middle of 2020, but it was followed by a partial recovery. The rate was 5% lower by the end of 2020, relative to the prepandemic rate (31.7% vs. 36.7%), but that was 5% higher than the nadir.

A similar phenomenon was observed with several other metrics. For example, there was a steep, immediate fall correlating with the onset of the pandemic in the proportion of patients who achieved at least a 10–mm Hg reduction or a BP under 140/90 mm Hg when treated for hypertension. Again, the nadir in this proportion was reached in about mid-2020 followed by a partial recovery. By the end of 2020, 5.9% fewer patients were achieving 10–mm Hg or better improvement in BP control when treated relative to the prepandemic level (23.8% vs. 29.7%), but this level was almost 10% higher than the nadir.

Data based on electronic medical records

The nearly 1.8 million patient records evaluated in the BP Track study were drawn from the 24 centers participating in the PCORnet Blood Pressure Control Laboratory Surveillance System. Nationally distributed, 18 of the 24 systems were academically affiliated.

When stratified by race, the proportion of Asians meeting the definition of BP control prior to the pandemic was about 5% higher than the overall average, and the proportion in Blacks was more than 5% lower. Whites had rates of blood pressure control very near the average. The relative declines in BP and the proportion of patients with uncontrolled blood pressure who had a repeat visit within 4 weeks during the pandemic were generally parallel across racial groups.

The implications of these data and the role of the COVID-19 pandemic on blood pressure control are “concerning,” according to Adam Bress, PharmD, department of population health sciences, University of Utah, Salt Lake City.

Citing a study published in 2020 that suggested blood pressure control rates in the United States were already declining before the COVID-19 pandemic, he said the COVID-19 epidemic appears to be exacerbating an existing problem. He expressed particular concern for populations who already have low rates of control, such as African Americans.

“The impact of COVID-19 is likely to be disproportionately greater for underserved and minoritized patients,” said Dr. Bress, who was the lead author of a recent article on this specific topic.

The implication of BP Track is that a wave of cardiovascular events will be coming if the data are nationally representative.

“A recent meta-analysis shows that each 5–mm Hg reduction in blood pressure is associated with age-related reductions in CV events,” Dr. Bress said. For those 55 years of age or older, he said the risk reduction is about 10%. Given that the inverse is almost certainly true, he expects diminishing blood pressure control, whether COVID-19-related or not, to translate into increased CV events.

However, there is no guarantee that the BP Track data are representative of the U.S. population, cautioned Eugene Yang, MD, professor in the division of cardiology, University of Washington, Seattle. Even though a large group of patients was included, they were largely drawn from academic centers.

Nevertheless, Dr. Yang, who chairs the Hypertension Working Group of the American College of Cardiology’s Prevention of Cardiovascular Disease Council, acknowledged that the implications are “scary.”

If the data are representative, “this type of reduction in blood pressure control would be expected to have a significant impact on morbidity and mortality, but we also have to think of all the variables that were not tracked and might add to risk,” he said. He named such risk factors as weight gain, diminished exercise, and increased alcohol consumption, which have been cited by others as being exacerbated by the pandemic.

If these lead to more cardiovascular events on a population basis, the timing of these events would be expected to be age dependent.

“If you look at the patients included in this study, about 50% were 65 years of age or older. In a population like this you would expect to see an increase in events sooner rather than later,” said Dr. Wang.

In other words, if the trial is representative, a wave of cardiovascular events might be seen in the most vulnerable patients “within the next few years,” Dr. Yang speculated.

Dr. Chamberlain reports a research grant from EpidStrategies. Dr. Bress and Dr. Yang report no potential financial conflicts of interest.

The proportion of hypertensive patients with blood pressure control fell substantially in the United States during the COVID-19 pandemic, if the data from 24 health systems is representative of national trends.

GlobalStock/Getty Images

The decline in blood pressure control corresponded with – and might be explained by – a parallel decline in follow-up visits for uncontrolled hypertension from the same data source, according to Alanna M. Chamberlain, PhD, associate professor of epidemiology in the division of quantitative health sciences, Mayo Clinic, Rochester, Minn.

If the data are representative, a wave of cardiovascular (CV) events might be coming.

The study, called BP Track, collated electronic medical data on almost 1.8 million patients with hypertension from 2017 through 2020. Up until the end of 2019 and prior to the pandemic, slightly less than 60% of these patients had blood pressure control, defined as less than 140/90 mm Hg.

While the pre-COVID control rates were already “suboptimal,” a decline began almost immediately when the full force of the COVID-19 pandemic began in March of 2020, said Dr. Chamberlain in reporting the BP Track results at the American Heart Association scientific sessions.

When graphed from the start of the pandemic until the end of 2020, the proportion under control fell 7.2% to a level just above 50%. For the more rigorous target of less than 130/80 mm Hg, the proportion fell 4.6% over the same period of time, leaving only about 25% at that level of control.

Repeat visits for BP control rebounded

The proportion of patients with a repeat office visit within 4 weeks of a diagnosis of uncontrolled hypertension fell even more steeply, reaching a nadir at about the middle of 2020, but it was followed by a partial recovery. The rate was 5% lower by the end of 2020, relative to the prepandemic rate (31.7% vs. 36.7%), but that was 5% higher than the nadir.

A similar phenomenon was observed with several other metrics. For example, there was a steep, immediate fall correlating with the onset of the pandemic in the proportion of patients who achieved at least a 10–mm Hg reduction or a BP under 140/90 mm Hg when treated for hypertension. Again, the nadir in this proportion was reached in about mid-2020 followed by a partial recovery. By the end of 2020, 5.9% fewer patients were achieving 10–mm Hg or better improvement in BP control when treated relative to the prepandemic level (23.8% vs. 29.7%), but this level was almost 10% higher than the nadir.

Data based on electronic medical records

The nearly 1.8 million patient records evaluated in the BP Track study were drawn from the 24 centers participating in the PCORnet Blood Pressure Control Laboratory Surveillance System. Nationally distributed, 18 of the 24 systems were academically affiliated.

When stratified by race, the proportion of Asians meeting the definition of BP control prior to the pandemic was about 5% higher than the overall average, and the proportion in Blacks was more than 5% lower. Whites had rates of blood pressure control very near the average. The relative declines in BP and the proportion of patients with uncontrolled blood pressure who had a repeat visit within 4 weeks during the pandemic were generally parallel across racial groups.

The implications of these data and the role of the COVID-19 pandemic on blood pressure control are “concerning,” according to Adam Bress, PharmD, department of population health sciences, University of Utah, Salt Lake City.

Citing a study published in 2020 that suggested blood pressure control rates in the United States were already declining before the COVID-19 pandemic, he said the COVID-19 epidemic appears to be exacerbating an existing problem. He expressed particular concern for populations who already have low rates of control, such as African Americans.

“The impact of COVID-19 is likely to be disproportionately greater for underserved and minoritized patients,” said Dr. Bress, who was the lead author of a recent article on this specific topic.

The implication of BP Track is that a wave of cardiovascular events will be coming if the data are nationally representative.

“A recent meta-analysis shows that each 5–mm Hg reduction in blood pressure is associated with age-related reductions in CV events,” Dr. Bress said. For those 55 years of age or older, he said the risk reduction is about 10%. Given that the inverse is almost certainly true, he expects diminishing blood pressure control, whether COVID-19-related or not, to translate into increased CV events.

However, there is no guarantee that the BP Track data are representative of the U.S. population, cautioned Eugene Yang, MD, professor in the division of cardiology, University of Washington, Seattle. Even though a large group of patients was included, they were largely drawn from academic centers.

Nevertheless, Dr. Yang, who chairs the Hypertension Working Group of the American College of Cardiology’s Prevention of Cardiovascular Disease Council, acknowledged that the implications are “scary.”

If the data are representative, “this type of reduction in blood pressure control would be expected to have a significant impact on morbidity and mortality, but we also have to think of all the variables that were not tracked and might add to risk,” he said. He named such risk factors as weight gain, diminished exercise, and increased alcohol consumption, which have been cited by others as being exacerbated by the pandemic.

If these lead to more cardiovascular events on a population basis, the timing of these events would be expected to be age dependent.

“If you look at the patients included in this study, about 50% were 65 years of age or older. In a population like this you would expect to see an increase in events sooner rather than later,” said Dr. Wang.

In other words, if the trial is representative, a wave of cardiovascular events might be seen in the most vulnerable patients “within the next few years,” Dr. Yang speculated.

Dr. Chamberlain reports a research grant from EpidStrategies. Dr. Bress and Dr. Yang report no potential financial conflicts of interest.