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Rest dyspnea dims as acute heart failure treatment target
PARIS – During the most recent pharmaceutical generation, drug development for heart failure largely focused on acute heart failure, and specifically on patients with rest dyspnea as the primary manifestation of their acute heart failure decompensation events.
That has now changed, agreed heart failure experts as they debated the upshot of sobering results from two neutral trials that failed to show a midterm mortality benefit in patients hospitalized for acute heart failure who underwent aggressive management of their congestion using 2 days of intravenous treatment with either of two potent vasodilating drugs. Results first reported in November 2016 failed to show a survival benefit from ularitide in the 2,100-patient TRUE-AHF (Efficacy and Safety of Ularitide for the Treatment of Acute Decompensated Heart Failure) trial (N Engl J Med. 2017 May 18;376[20]:1956-64). And results reported at a meeting of the Heart Failure Association of the ESC failed to show a survival benefit from serelaxin in more than 6,500 acute heart failure patients in the RELAX-AHF-2 (Efficacy, Safety and Tolerability of Serelaxin When Added to Standard Therapy in AHF) trial.
The failure of a 2-day infusion of serelaxin to produce a significant reduction in cardiovascular death in RELAX-AHF-2 was especially surprising because the predecessor trial, RELAX-AHF, which randomized only 1,160 patients and used a surrogate endpoint of dyspnea improvement, had shown significant benefit that hinted more clinically meaningful benefits might also result from serelaxin treatment (Lancet. 2013 Jan 5;381[9860]:29-39). The disappointing serelaxin and ularitide results also culminate a series of studies using several different agents or procedures to treat acute decompensated heart failure patients that all failed to produce a reduction in deaths.
The neutral results from TRUE-AHF and RELAX-AHF-2 “mark the start of a new era. We need to rethink and fine-tune our strategies,” commented Frank Ruschitzka, MD, president of the Heart Failure Association, as he shared his take-home message from the meeting at the end of the closing session.
“This is a sea change; make no mistake. We will need a more targeted, selective approach. It was always a daunting proposition to believe that short-term infusion could have an effect 6 months later. We were misled by the analogy [of acute heart failure] to acute coronary syndrome,” said Dr. Ruschitzka, professor of medicine at the University of Zürich.
The right time to intervene
Meeting attendees offered several hypotheses to explain why the acute ularitide and serelaxin trials both failed to show a mortality benefit, with timing of treatment the most common denominator.
Acute heart failure “is an event, not a disease,” declared Milton Packer, MD, lead investigator of TRUE-AHF, during a session devoted to vasodilator treatment of acute heart failure. Acute heart failure decompensations “are fluctuations in a chronic disease. It doesn’t matter what you do during the episode – it matters what you do between acute episodes. We focus all our attention on which vasodilator and which dose of Lasix [furosemide], but we send patients home on inadequate chronic therapy. It doesn’t matter what you do to the dyspnea, the shortness of breath will get better. Do we need a new drug that makes dyspnea go away an hour sooner and doesn’t cost a fortune? What really matters is what patients do between acute episodes and how to prevent them, ” said Dr. Packer, distinguished scholar in cardiovascular science at Baylor University Medical Center in Dallas.
Dr. Packer strongly urged clinicians to put heart failure patients on the full regimen of guideline-directed drugs and at full dosages, a step he thinks would go a long way toward preventing a majority of decompensation episodes. “Chronic heart failure treatment has improved dramatically, but implementation is abysmal,” he said.
Acute decompensation is the wrong time to target intervention, agreed G. Michael Felker, MD, professor of medicine at Duke University in Durham, N.C. “We study patients at the time of their hospitalization. As we get more and more neutral studies, many are now thinking that this may not be the best time for intervention. An untapped opportunity is a few weeks before hospitalization, because acute heart failure patients get sick over weeks, not hours.” The time to treat is in the “early, predecompensation period. That is an important time to target as we develop new drugs,” he said in an interview.
Of course, at this phase of their disease heart failure patients are usually at home, which more or less demands that the treatments they take are oral or at least delivered by subcutaneous injection.
“We’ve had a mismatch of candidate drugs, which have mostly been IV infusions, with a clinical setting where an IV infusion is challenging to use.”
“We are killing good drugs by the way we’re testing them,” commented Javed Butler, MD, who bemoaned the ignominious outcome of serelaxin treatment in RELAX-AHF-2. “The available data show it makes no sense to treat for just 2 days. We should take true worsening heart failure patients, those who are truly failing standard treatment, and look at new chronic oral therapies to try on them.” Oral drugs similar to serelaxin and ularitide could be used chronically, suggested Dr. Butler, professor of medicine and chief of cardiology at Stony Brook (N.Y.) School of Medicine.
Wrong patients with the wrong presentation
Perhaps just as big a flaw of the acute heart failure trials has been their target patient population, patients with rest dyspnea at the time of admission. “Why do we think that dyspnea is a clinically relevant symptom for acute heart failure?” Dr. Packer asked.
It’s not because it’s the most prevalent, according to new findings reported at the meeting by John G.F. Cleland, MD, professor of cardiology at Imperial College, London.
Dr. Cleland and his associates analyzed data on 116,752 hospitalizations for acute heart failure in England and Wales during April 2007–March 2013, a database that included more than 90% of hospitals for these regions. “We found that a large proportion of admitted patients did not have breathlessness at rest as their primary reason for seeking hospitalization. For about half the patients, moderate or severe peripheral edema was the main problem,” he reported. Roughly a third of patients had rest dyspnea as their main symptom.
An unadjusted analysis also showed a stronger link between peripheral edema and the rate of mortality during a median follow-up of about a year following hospitalization, compared with rest dyspnea. Compared with the lowest-risk subgroup, the patients with severe peripheral edema (18% of the population) had more than twice the mortality. In contrast, the patients with the most severe rest dyspnea and no evidence at all of peripheral edema, just 6% of the population, had a 50% higher mortality rate than the lowest-risk patients.
”It’s peripheral edema rather than breathlessness that is the important determinant of length of stay and prognosis. The disastrous neutral trials for acute heart failure have all targeted the breathless subset of patients. Maybe a reason for the failures has been that they’ve been treating a problem that does not exist. The trials have looked at the wrong patients,” Dr. Cleland said.
‘We’ve told the wrong story to industry” about the importance of rest dyspnea to acute heart failure patients. “When we say acute heart failure, we mean an ambulance and oxygen and the emergency department and rapid IV treatment. That’s breathlessness. Patients with peripheral edema usually get driven in and walk from the car to a wheelchair and they wait 4 hours to be seen. I think that, following the TRUE-AHF and RELAX-AHF-2 results, we’ll see a radical change.”
But just because the focus should be on peripheral edema rather than dyspnea, that doesn’t mean better drugs aren’t needed, Dr. Cleland added.
“We need better treatments to deal with congestion. Once a patient is congested, we are not very good at getting rid of it. We depend on diuretics, which we don’t use properly. Ultimately I’d like to see agents as adjuncts to diuretics, to produce better kidney function.” But treatments for breathlessness are decent as they now exist: furosemide plus oxygen. When a simple, cheap drug works 80% of the time, it is really hard to improve on that.” The real unmet needs for treating acute decompensated heart failure are patients with rest dyspnea who don’t respond to conventional treatment, and especially patients with gross peripheral edema plus low blood pressure and renal dysfunction for whom no good treatments have been developed, Dr. Cleland said.
Another flaw in the patient selection criteria for the acute heart failure studies has been the focus on patients with elevated blood pressures, the logical target for vasodilator drugs that lower blood pressure, noted Dr. Felker. “But these are the patients at lowest risk. We’ve had a mismatch between the patients with the biggest need and the patients we actually study, which relates to the types of drugs we’ve developed.”
Acute heart failure remains a target
Despite all the talk of refocusing attention on chronic heart failure and peripheral edema, at least one expert remained steadfast in talking up the importance of new acute interventions.
“Acute heart failure is mostly excess cardiovascular congestion” coupled with congestion in organs like the kidneys and liver, insisted Alexandre Mebazaa, MD. “Drugs that improve dyspnea don’t necessarily improve kidney and liver dysfunction,” which are important targets for decongestion treatment, he said. “The treatments we’ve tested have not been effective in decongesting organs,” but he still held out hope for new agents with vasodilating properties.
Part of the problem in believing that existing treatments can adequately manage heart failure and prevent acute decompensations is that about 75% of acute heart failure episodes either occur as the first presentation of heart failure, or occur in patients with heart failure with preserved ejection fraction (HFpEF), a type of heart failure that, until recently, had no chronic drug regimens with widely acknowledged efficacy for HFpEF. (The 2017 U.S. heart failure management guidelines update listed aldosterone receptor antagonists as a class IIb recommendation for treating HFpEF, the first time guidelines have sanctioned a drug class for treating HFpEF [Circulation. 2017 Apr 28. doi: 10.1161/CIR.0000000000000509].)
“For patients with heart failure with reduced ejection fraction, you can give optimal treatments and [decompensations] are prevented,” noted Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “But for the huge number of HFpEF patients we have nothing. Acute heart failure will remain prevalent, and we still don’t have the right drugs to use on these patients.”
The TRUE-AHF trial was sponsored by Cardiorentis. RELAX-AHF-2 was sponsored by Novartis. Dr. Ruschitzka has been a speaker on behalf of Novartis, and has been a speaker for or consultant to several companies and was a coinvestigator for TRUE-AHF and received fees from Cardiorentis for his participation. Dr. Packer is a consultant to and stockholder in Cardiorentis and has been a consultant to several other companies. Dr. Felker has been a consultant to Novartis and several other companies and was a coinvestigator on RELAX-AHF-2. Dr. Butler has been a consultant to several companies. Dr. Cleland has received research support from Novartis, and he has been a consultant to and received research support from several other companies. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis as well as from several other companies and was a coinvestigator on TRUE-AHF.
[email protected]
On Twitter @mitchelzoler
PARIS – During the most recent pharmaceutical generation, drug development for heart failure largely focused on acute heart failure, and specifically on patients with rest dyspnea as the primary manifestation of their acute heart failure decompensation events.
That has now changed, agreed heart failure experts as they debated the upshot of sobering results from two neutral trials that failed to show a midterm mortality benefit in patients hospitalized for acute heart failure who underwent aggressive management of their congestion using 2 days of intravenous treatment with either of two potent vasodilating drugs. Results first reported in November 2016 failed to show a survival benefit from ularitide in the 2,100-patient TRUE-AHF (Efficacy and Safety of Ularitide for the Treatment of Acute Decompensated Heart Failure) trial (N Engl J Med. 2017 May 18;376[20]:1956-64). And results reported at a meeting of the Heart Failure Association of the ESC failed to show a survival benefit from serelaxin in more than 6,500 acute heart failure patients in the RELAX-AHF-2 (Efficacy, Safety and Tolerability of Serelaxin When Added to Standard Therapy in AHF) trial.
The failure of a 2-day infusion of serelaxin to produce a significant reduction in cardiovascular death in RELAX-AHF-2 was especially surprising because the predecessor trial, RELAX-AHF, which randomized only 1,160 patients and used a surrogate endpoint of dyspnea improvement, had shown significant benefit that hinted more clinically meaningful benefits might also result from serelaxin treatment (Lancet. 2013 Jan 5;381[9860]:29-39). The disappointing serelaxin and ularitide results also culminate a series of studies using several different agents or procedures to treat acute decompensated heart failure patients that all failed to produce a reduction in deaths.
The neutral results from TRUE-AHF and RELAX-AHF-2 “mark the start of a new era. We need to rethink and fine-tune our strategies,” commented Frank Ruschitzka, MD, president of the Heart Failure Association, as he shared his take-home message from the meeting at the end of the closing session.
“This is a sea change; make no mistake. We will need a more targeted, selective approach. It was always a daunting proposition to believe that short-term infusion could have an effect 6 months later. We were misled by the analogy [of acute heart failure] to acute coronary syndrome,” said Dr. Ruschitzka, professor of medicine at the University of Zürich.
The right time to intervene
Meeting attendees offered several hypotheses to explain why the acute ularitide and serelaxin trials both failed to show a mortality benefit, with timing of treatment the most common denominator.
Acute heart failure “is an event, not a disease,” declared Milton Packer, MD, lead investigator of TRUE-AHF, during a session devoted to vasodilator treatment of acute heart failure. Acute heart failure decompensations “are fluctuations in a chronic disease. It doesn’t matter what you do during the episode – it matters what you do between acute episodes. We focus all our attention on which vasodilator and which dose of Lasix [furosemide], but we send patients home on inadequate chronic therapy. It doesn’t matter what you do to the dyspnea, the shortness of breath will get better. Do we need a new drug that makes dyspnea go away an hour sooner and doesn’t cost a fortune? What really matters is what patients do between acute episodes and how to prevent them, ” said Dr. Packer, distinguished scholar in cardiovascular science at Baylor University Medical Center in Dallas.
Dr. Packer strongly urged clinicians to put heart failure patients on the full regimen of guideline-directed drugs and at full dosages, a step he thinks would go a long way toward preventing a majority of decompensation episodes. “Chronic heart failure treatment has improved dramatically, but implementation is abysmal,” he said.
Acute decompensation is the wrong time to target intervention, agreed G. Michael Felker, MD, professor of medicine at Duke University in Durham, N.C. “We study patients at the time of their hospitalization. As we get more and more neutral studies, many are now thinking that this may not be the best time for intervention. An untapped opportunity is a few weeks before hospitalization, because acute heart failure patients get sick over weeks, not hours.” The time to treat is in the “early, predecompensation period. That is an important time to target as we develop new drugs,” he said in an interview.
Of course, at this phase of their disease heart failure patients are usually at home, which more or less demands that the treatments they take are oral or at least delivered by subcutaneous injection.
“We’ve had a mismatch of candidate drugs, which have mostly been IV infusions, with a clinical setting where an IV infusion is challenging to use.”
“We are killing good drugs by the way we’re testing them,” commented Javed Butler, MD, who bemoaned the ignominious outcome of serelaxin treatment in RELAX-AHF-2. “The available data show it makes no sense to treat for just 2 days. We should take true worsening heart failure patients, those who are truly failing standard treatment, and look at new chronic oral therapies to try on them.” Oral drugs similar to serelaxin and ularitide could be used chronically, suggested Dr. Butler, professor of medicine and chief of cardiology at Stony Brook (N.Y.) School of Medicine.
Wrong patients with the wrong presentation
Perhaps just as big a flaw of the acute heart failure trials has been their target patient population, patients with rest dyspnea at the time of admission. “Why do we think that dyspnea is a clinically relevant symptom for acute heart failure?” Dr. Packer asked.
It’s not because it’s the most prevalent, according to new findings reported at the meeting by John G.F. Cleland, MD, professor of cardiology at Imperial College, London.
Dr. Cleland and his associates analyzed data on 116,752 hospitalizations for acute heart failure in England and Wales during April 2007–March 2013, a database that included more than 90% of hospitals for these regions. “We found that a large proportion of admitted patients did not have breathlessness at rest as their primary reason for seeking hospitalization. For about half the patients, moderate or severe peripheral edema was the main problem,” he reported. Roughly a third of patients had rest dyspnea as their main symptom.
An unadjusted analysis also showed a stronger link between peripheral edema and the rate of mortality during a median follow-up of about a year following hospitalization, compared with rest dyspnea. Compared with the lowest-risk subgroup, the patients with severe peripheral edema (18% of the population) had more than twice the mortality. In contrast, the patients with the most severe rest dyspnea and no evidence at all of peripheral edema, just 6% of the population, had a 50% higher mortality rate than the lowest-risk patients.
”It’s peripheral edema rather than breathlessness that is the important determinant of length of stay and prognosis. The disastrous neutral trials for acute heart failure have all targeted the breathless subset of patients. Maybe a reason for the failures has been that they’ve been treating a problem that does not exist. The trials have looked at the wrong patients,” Dr. Cleland said.
‘We’ve told the wrong story to industry” about the importance of rest dyspnea to acute heart failure patients. “When we say acute heart failure, we mean an ambulance and oxygen and the emergency department and rapid IV treatment. That’s breathlessness. Patients with peripheral edema usually get driven in and walk from the car to a wheelchair and they wait 4 hours to be seen. I think that, following the TRUE-AHF and RELAX-AHF-2 results, we’ll see a radical change.”
But just because the focus should be on peripheral edema rather than dyspnea, that doesn’t mean better drugs aren’t needed, Dr. Cleland added.
“We need better treatments to deal with congestion. Once a patient is congested, we are not very good at getting rid of it. We depend on diuretics, which we don’t use properly. Ultimately I’d like to see agents as adjuncts to diuretics, to produce better kidney function.” But treatments for breathlessness are decent as they now exist: furosemide plus oxygen. When a simple, cheap drug works 80% of the time, it is really hard to improve on that.” The real unmet needs for treating acute decompensated heart failure are patients with rest dyspnea who don’t respond to conventional treatment, and especially patients with gross peripheral edema plus low blood pressure and renal dysfunction for whom no good treatments have been developed, Dr. Cleland said.
Another flaw in the patient selection criteria for the acute heart failure studies has been the focus on patients with elevated blood pressures, the logical target for vasodilator drugs that lower blood pressure, noted Dr. Felker. “But these are the patients at lowest risk. We’ve had a mismatch between the patients with the biggest need and the patients we actually study, which relates to the types of drugs we’ve developed.”
Acute heart failure remains a target
Despite all the talk of refocusing attention on chronic heart failure and peripheral edema, at least one expert remained steadfast in talking up the importance of new acute interventions.
“Acute heart failure is mostly excess cardiovascular congestion” coupled with congestion in organs like the kidneys and liver, insisted Alexandre Mebazaa, MD. “Drugs that improve dyspnea don’t necessarily improve kidney and liver dysfunction,” which are important targets for decongestion treatment, he said. “The treatments we’ve tested have not been effective in decongesting organs,” but he still held out hope for new agents with vasodilating properties.
Part of the problem in believing that existing treatments can adequately manage heart failure and prevent acute decompensations is that about 75% of acute heart failure episodes either occur as the first presentation of heart failure, or occur in patients with heart failure with preserved ejection fraction (HFpEF), a type of heart failure that, until recently, had no chronic drug regimens with widely acknowledged efficacy for HFpEF. (The 2017 U.S. heart failure management guidelines update listed aldosterone receptor antagonists as a class IIb recommendation for treating HFpEF, the first time guidelines have sanctioned a drug class for treating HFpEF [Circulation. 2017 Apr 28. doi: 10.1161/CIR.0000000000000509].)
“For patients with heart failure with reduced ejection fraction, you can give optimal treatments and [decompensations] are prevented,” noted Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “But for the huge number of HFpEF patients we have nothing. Acute heart failure will remain prevalent, and we still don’t have the right drugs to use on these patients.”
The TRUE-AHF trial was sponsored by Cardiorentis. RELAX-AHF-2 was sponsored by Novartis. Dr. Ruschitzka has been a speaker on behalf of Novartis, and has been a speaker for or consultant to several companies and was a coinvestigator for TRUE-AHF and received fees from Cardiorentis for his participation. Dr. Packer is a consultant to and stockholder in Cardiorentis and has been a consultant to several other companies. Dr. Felker has been a consultant to Novartis and several other companies and was a coinvestigator on RELAX-AHF-2. Dr. Butler has been a consultant to several companies. Dr. Cleland has received research support from Novartis, and he has been a consultant to and received research support from several other companies. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis as well as from several other companies and was a coinvestigator on TRUE-AHF.
[email protected]
On Twitter @mitchelzoler
PARIS – During the most recent pharmaceutical generation, drug development for heart failure largely focused on acute heart failure, and specifically on patients with rest dyspnea as the primary manifestation of their acute heart failure decompensation events.
That has now changed, agreed heart failure experts as they debated the upshot of sobering results from two neutral trials that failed to show a midterm mortality benefit in patients hospitalized for acute heart failure who underwent aggressive management of their congestion using 2 days of intravenous treatment with either of two potent vasodilating drugs. Results first reported in November 2016 failed to show a survival benefit from ularitide in the 2,100-patient TRUE-AHF (Efficacy and Safety of Ularitide for the Treatment of Acute Decompensated Heart Failure) trial (N Engl J Med. 2017 May 18;376[20]:1956-64). And results reported at a meeting of the Heart Failure Association of the ESC failed to show a survival benefit from serelaxin in more than 6,500 acute heart failure patients in the RELAX-AHF-2 (Efficacy, Safety and Tolerability of Serelaxin When Added to Standard Therapy in AHF) trial.
The failure of a 2-day infusion of serelaxin to produce a significant reduction in cardiovascular death in RELAX-AHF-2 was especially surprising because the predecessor trial, RELAX-AHF, which randomized only 1,160 patients and used a surrogate endpoint of dyspnea improvement, had shown significant benefit that hinted more clinically meaningful benefits might also result from serelaxin treatment (Lancet. 2013 Jan 5;381[9860]:29-39). The disappointing serelaxin and ularitide results also culminate a series of studies using several different agents or procedures to treat acute decompensated heart failure patients that all failed to produce a reduction in deaths.
The neutral results from TRUE-AHF and RELAX-AHF-2 “mark the start of a new era. We need to rethink and fine-tune our strategies,” commented Frank Ruschitzka, MD, president of the Heart Failure Association, as he shared his take-home message from the meeting at the end of the closing session.
“This is a sea change; make no mistake. We will need a more targeted, selective approach. It was always a daunting proposition to believe that short-term infusion could have an effect 6 months later. We were misled by the analogy [of acute heart failure] to acute coronary syndrome,” said Dr. Ruschitzka, professor of medicine at the University of Zürich.
The right time to intervene
Meeting attendees offered several hypotheses to explain why the acute ularitide and serelaxin trials both failed to show a mortality benefit, with timing of treatment the most common denominator.
Acute heart failure “is an event, not a disease,” declared Milton Packer, MD, lead investigator of TRUE-AHF, during a session devoted to vasodilator treatment of acute heart failure. Acute heart failure decompensations “are fluctuations in a chronic disease. It doesn’t matter what you do during the episode – it matters what you do between acute episodes. We focus all our attention on which vasodilator and which dose of Lasix [furosemide], but we send patients home on inadequate chronic therapy. It doesn’t matter what you do to the dyspnea, the shortness of breath will get better. Do we need a new drug that makes dyspnea go away an hour sooner and doesn’t cost a fortune? What really matters is what patients do between acute episodes and how to prevent them, ” said Dr. Packer, distinguished scholar in cardiovascular science at Baylor University Medical Center in Dallas.
Dr. Packer strongly urged clinicians to put heart failure patients on the full regimen of guideline-directed drugs and at full dosages, a step he thinks would go a long way toward preventing a majority of decompensation episodes. “Chronic heart failure treatment has improved dramatically, but implementation is abysmal,” he said.
Acute decompensation is the wrong time to target intervention, agreed G. Michael Felker, MD, professor of medicine at Duke University in Durham, N.C. “We study patients at the time of their hospitalization. As we get more and more neutral studies, many are now thinking that this may not be the best time for intervention. An untapped opportunity is a few weeks before hospitalization, because acute heart failure patients get sick over weeks, not hours.” The time to treat is in the “early, predecompensation period. That is an important time to target as we develop new drugs,” he said in an interview.
Of course, at this phase of their disease heart failure patients are usually at home, which more or less demands that the treatments they take are oral or at least delivered by subcutaneous injection.
“We’ve had a mismatch of candidate drugs, which have mostly been IV infusions, with a clinical setting where an IV infusion is challenging to use.”
“We are killing good drugs by the way we’re testing them,” commented Javed Butler, MD, who bemoaned the ignominious outcome of serelaxin treatment in RELAX-AHF-2. “The available data show it makes no sense to treat for just 2 days. We should take true worsening heart failure patients, those who are truly failing standard treatment, and look at new chronic oral therapies to try on them.” Oral drugs similar to serelaxin and ularitide could be used chronically, suggested Dr. Butler, professor of medicine and chief of cardiology at Stony Brook (N.Y.) School of Medicine.
Wrong patients with the wrong presentation
Perhaps just as big a flaw of the acute heart failure trials has been their target patient population, patients with rest dyspnea at the time of admission. “Why do we think that dyspnea is a clinically relevant symptom for acute heart failure?” Dr. Packer asked.
It’s not because it’s the most prevalent, according to new findings reported at the meeting by John G.F. Cleland, MD, professor of cardiology at Imperial College, London.
Dr. Cleland and his associates analyzed data on 116,752 hospitalizations for acute heart failure in England and Wales during April 2007–March 2013, a database that included more than 90% of hospitals for these regions. “We found that a large proportion of admitted patients did not have breathlessness at rest as their primary reason for seeking hospitalization. For about half the patients, moderate or severe peripheral edema was the main problem,” he reported. Roughly a third of patients had rest dyspnea as their main symptom.
An unadjusted analysis also showed a stronger link between peripheral edema and the rate of mortality during a median follow-up of about a year following hospitalization, compared with rest dyspnea. Compared with the lowest-risk subgroup, the patients with severe peripheral edema (18% of the population) had more than twice the mortality. In contrast, the patients with the most severe rest dyspnea and no evidence at all of peripheral edema, just 6% of the population, had a 50% higher mortality rate than the lowest-risk patients.
”It’s peripheral edema rather than breathlessness that is the important determinant of length of stay and prognosis. The disastrous neutral trials for acute heart failure have all targeted the breathless subset of patients. Maybe a reason for the failures has been that they’ve been treating a problem that does not exist. The trials have looked at the wrong patients,” Dr. Cleland said.
‘We’ve told the wrong story to industry” about the importance of rest dyspnea to acute heart failure patients. “When we say acute heart failure, we mean an ambulance and oxygen and the emergency department and rapid IV treatment. That’s breathlessness. Patients with peripheral edema usually get driven in and walk from the car to a wheelchair and they wait 4 hours to be seen. I think that, following the TRUE-AHF and RELAX-AHF-2 results, we’ll see a radical change.”
But just because the focus should be on peripheral edema rather than dyspnea, that doesn’t mean better drugs aren’t needed, Dr. Cleland added.
“We need better treatments to deal with congestion. Once a patient is congested, we are not very good at getting rid of it. We depend on diuretics, which we don’t use properly. Ultimately I’d like to see agents as adjuncts to diuretics, to produce better kidney function.” But treatments for breathlessness are decent as they now exist: furosemide plus oxygen. When a simple, cheap drug works 80% of the time, it is really hard to improve on that.” The real unmet needs for treating acute decompensated heart failure are patients with rest dyspnea who don’t respond to conventional treatment, and especially patients with gross peripheral edema plus low blood pressure and renal dysfunction for whom no good treatments have been developed, Dr. Cleland said.
Another flaw in the patient selection criteria for the acute heart failure studies has been the focus on patients with elevated blood pressures, the logical target for vasodilator drugs that lower blood pressure, noted Dr. Felker. “But these are the patients at lowest risk. We’ve had a mismatch between the patients with the biggest need and the patients we actually study, which relates to the types of drugs we’ve developed.”
Acute heart failure remains a target
Despite all the talk of refocusing attention on chronic heart failure and peripheral edema, at least one expert remained steadfast in talking up the importance of new acute interventions.
“Acute heart failure is mostly excess cardiovascular congestion” coupled with congestion in organs like the kidneys and liver, insisted Alexandre Mebazaa, MD. “Drugs that improve dyspnea don’t necessarily improve kidney and liver dysfunction,” which are important targets for decongestion treatment, he said. “The treatments we’ve tested have not been effective in decongesting organs,” but he still held out hope for new agents with vasodilating properties.
Part of the problem in believing that existing treatments can adequately manage heart failure and prevent acute decompensations is that about 75% of acute heart failure episodes either occur as the first presentation of heart failure, or occur in patients with heart failure with preserved ejection fraction (HFpEF), a type of heart failure that, until recently, had no chronic drug regimens with widely acknowledged efficacy for HFpEF. (The 2017 U.S. heart failure management guidelines update listed aldosterone receptor antagonists as a class IIb recommendation for treating HFpEF, the first time guidelines have sanctioned a drug class for treating HFpEF [Circulation. 2017 Apr 28. doi: 10.1161/CIR.0000000000000509].)
“For patients with heart failure with reduced ejection fraction, you can give optimal treatments and [decompensations] are prevented,” noted Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “But for the huge number of HFpEF patients we have nothing. Acute heart failure will remain prevalent, and we still don’t have the right drugs to use on these patients.”
The TRUE-AHF trial was sponsored by Cardiorentis. RELAX-AHF-2 was sponsored by Novartis. Dr. Ruschitzka has been a speaker on behalf of Novartis, and has been a speaker for or consultant to several companies and was a coinvestigator for TRUE-AHF and received fees from Cardiorentis for his participation. Dr. Packer is a consultant to and stockholder in Cardiorentis and has been a consultant to several other companies. Dr. Felker has been a consultant to Novartis and several other companies and was a coinvestigator on RELAX-AHF-2. Dr. Butler has been a consultant to several companies. Dr. Cleland has received research support from Novartis, and he has been a consultant to and received research support from several other companies. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis as well as from several other companies and was a coinvestigator on TRUE-AHF.
[email protected]
On Twitter @mitchelzoler
EXPERT ANALYSIS FROM HEART FAILURE 2017
HFrEF mortality halved when treatment matches guidelines
PARIS – Heart failure patients who received guideline-directed pharmacotherapy, at dosages that approached guideline-directed levels, had roughly half the 6-month mortality as did similar patients who did not receive this level of treatment in a real-world, observational study with more than 6,000 patients.
Adherence to pharmacologic treatment guidelines for patients with heart failure with reduced ejection fraction (HFrEF) “was strongly associated with clinical outcomes during 6-month follow-up,” Michel Komajda, MD, said at a meeting held by the Heart Failure Association of the European Society of Cardiology. The findings highlight the importance of closely following guideline recommendations in routine practice.
Dr. Komajda’s analysis included six different outcome measures. The most striking benefits were reductions in all-cause mortality, death from cardiovascular causes, and heart failure death. Each of these three 6-month endpoints were roughly twice as high in HFrEF patients who either had poor or moderate adherence to guideline treatments, compared with patients with good adherence, in multivariate analyses that controlled for baseline demographic and clinical differences. Good treatment adherence also aligned with reductions in heart failure hospitalizations and cardiovascular disease hospitalizations.
[polldaddy:9772629]
The analysis used data collected in the QUALIFY (Quality of Adherence to Guideline Recommendations for Life-Saving Treatment in Heart Failure: an International Survey) registry, which enrolled 7,127 HFrEF patients during September 2013–December 2014 at 547 centers in 36 countries, mostly in Europe, Asia, and Africa but also in Canada, Ecuador, and Australia. All enrolled patients had to have been hospitalized for worsening heart failure at least once during the 1-15 months before they entered QUALIFY.
Dr. Komajda and his associates assessed each enrolled patient at baseline by their treatment with each of four guideline-recommended drug classes: an ACE inhibitor or angiotensin receptor blocker; a beta-blocker; an aldosterone receptor antagonist (ARA) if the patient’s functional status was rated as New York Heart Association class II, III, or IV; and ivabradine (Corlanor) if the patient was in NYHA class II, III, or IV, in sinus rhythm, had a heart rate of at least 70 beats per minute, and if the patient was in a country where ivabradine was available. Because patient enrollment occurred in 2013 and 2014, the study couldn’t include the new formulation of sacubitril plus valsartan (Entresto) in its analysis.
For each eligible drug class a patient received 1 point if their daily prescribed dosage was at least 50% of the recommended dosage (or 100% for an ARA), 0.5 points if the patient received the recommended drug but at a lower dosage, and no points if the drug wasn’t given. A patient also received 1 point if they were appropriately not given a drug because of a documented contraindication or intolerance. The researchers then calculated each patient’s “adherence score” by dividing their point total by the potentially maximum number of points that each patient could have received (a number that ranged from 2 to 4). They defined a score of 1 (which meant the patients received at least half the recommended dosage of all recommended drugs) as good adherence, a score of 0.51-0.99 as moderate adherence, and a score of 0.5 or less as poor adherence.
Because patient enrollment occurred during 2013 and 2014, the benchmark heart failure treatment guidelines were those issued by the European Society of Cardiology in 2012 (Eur Heart J. 2012 July;33[14]:1787-1847).
Concurrently with Dr. Komajda’s report at the meeting the results appeared in an article online (Eur J Heart Failure. 2017. doi: 10.1002/ejhf.887).
QUANTIFY was sponsored by Servier. Dr. Komajda has received honoraria from Servier and from Amgen, AstraZeneca, Bristol-Myers Squibb, Menarini, MSD, Novartis, Novo Nordisk, and Sanofi.
[email protected]
On Twitter @mitchelzoler
This was a wonderful and useful study. It was large, prospective, covered a wide geographic area, and showed that drug dosage matters when treating heart failure with reduced ejection fraction.
The geographic diversity was a strength, but also a potential weakness because of the resulting differences among the enrolled patients in financial resources, ethnic and genetic makeup, and their tolerance to various drugs. I hope that further research can dissect the role that each of these factors played in the results.
Unfortunately, QUANTIFY also represents a missed opportunity to examine the impact of other important elements of heart failure treatment, such as implantable cardioverter defibrillators and cardiac resynchronization therapy. The study also included no data on the use of nonrecommended treatments, such as nonsteroidal anti-inflammatory drugs.
Another limitation is the relatively simplistic approach used for assessing drug dosages to calculate the adherence scores. While it is a very useful step forward to classify patients by the drug dosages they received, there could be some very legitimate variations in dosages based on parameters such as blood pressure. An important question to address in the future is whether it is better to use all the recommended drugs at reduced dosages if necessary, or to use fewer agents at higher dosages.
But these are just quibbles about what is a very important study.
Andrew J.S. Coats, MD , is a cardiologist, professor of medicine, and academic vice-president for the Monash Warwick Alliance of Warwick University in Coventry, England, and Monash University in Melbourne. He has received honoraria from Impulse Dynamics, Menarini, PsiOxus, ResMed, Respicardia, and Servier. He made these comments as designated discussant for Dr. Komajda’s report.
This was a wonderful and useful study. It was large, prospective, covered a wide geographic area, and showed that drug dosage matters when treating heart failure with reduced ejection fraction.
The geographic diversity was a strength, but also a potential weakness because of the resulting differences among the enrolled patients in financial resources, ethnic and genetic makeup, and their tolerance to various drugs. I hope that further research can dissect the role that each of these factors played in the results.
Unfortunately, QUANTIFY also represents a missed opportunity to examine the impact of other important elements of heart failure treatment, such as implantable cardioverter defibrillators and cardiac resynchronization therapy. The study also included no data on the use of nonrecommended treatments, such as nonsteroidal anti-inflammatory drugs.
Another limitation is the relatively simplistic approach used for assessing drug dosages to calculate the adherence scores. While it is a very useful step forward to classify patients by the drug dosages they received, there could be some very legitimate variations in dosages based on parameters such as blood pressure. An important question to address in the future is whether it is better to use all the recommended drugs at reduced dosages if necessary, or to use fewer agents at higher dosages.
But these are just quibbles about what is a very important study.
Andrew J.S. Coats, MD , is a cardiologist, professor of medicine, and academic vice-president for the Monash Warwick Alliance of Warwick University in Coventry, England, and Monash University in Melbourne. He has received honoraria from Impulse Dynamics, Menarini, PsiOxus, ResMed, Respicardia, and Servier. He made these comments as designated discussant for Dr. Komajda’s report.
This was a wonderful and useful study. It was large, prospective, covered a wide geographic area, and showed that drug dosage matters when treating heart failure with reduced ejection fraction.
The geographic diversity was a strength, but also a potential weakness because of the resulting differences among the enrolled patients in financial resources, ethnic and genetic makeup, and their tolerance to various drugs. I hope that further research can dissect the role that each of these factors played in the results.
Unfortunately, QUANTIFY also represents a missed opportunity to examine the impact of other important elements of heart failure treatment, such as implantable cardioverter defibrillators and cardiac resynchronization therapy. The study also included no data on the use of nonrecommended treatments, such as nonsteroidal anti-inflammatory drugs.
Another limitation is the relatively simplistic approach used for assessing drug dosages to calculate the adherence scores. While it is a very useful step forward to classify patients by the drug dosages they received, there could be some very legitimate variations in dosages based on parameters such as blood pressure. An important question to address in the future is whether it is better to use all the recommended drugs at reduced dosages if necessary, or to use fewer agents at higher dosages.
But these are just quibbles about what is a very important study.
Andrew J.S. Coats, MD , is a cardiologist, professor of medicine, and academic vice-president for the Monash Warwick Alliance of Warwick University in Coventry, England, and Monash University in Melbourne. He has received honoraria from Impulse Dynamics, Menarini, PsiOxus, ResMed, Respicardia, and Servier. He made these comments as designated discussant for Dr. Komajda’s report.
PARIS – Heart failure patients who received guideline-directed pharmacotherapy, at dosages that approached guideline-directed levels, had roughly half the 6-month mortality as did similar patients who did not receive this level of treatment in a real-world, observational study with more than 6,000 patients.
Adherence to pharmacologic treatment guidelines for patients with heart failure with reduced ejection fraction (HFrEF) “was strongly associated with clinical outcomes during 6-month follow-up,” Michel Komajda, MD, said at a meeting held by the Heart Failure Association of the European Society of Cardiology. The findings highlight the importance of closely following guideline recommendations in routine practice.
Dr. Komajda’s analysis included six different outcome measures. The most striking benefits were reductions in all-cause mortality, death from cardiovascular causes, and heart failure death. Each of these three 6-month endpoints were roughly twice as high in HFrEF patients who either had poor or moderate adherence to guideline treatments, compared with patients with good adherence, in multivariate analyses that controlled for baseline demographic and clinical differences. Good treatment adherence also aligned with reductions in heart failure hospitalizations and cardiovascular disease hospitalizations.
[polldaddy:9772629]
The analysis used data collected in the QUALIFY (Quality of Adherence to Guideline Recommendations for Life-Saving Treatment in Heart Failure: an International Survey) registry, which enrolled 7,127 HFrEF patients during September 2013–December 2014 at 547 centers in 36 countries, mostly in Europe, Asia, and Africa but also in Canada, Ecuador, and Australia. All enrolled patients had to have been hospitalized for worsening heart failure at least once during the 1-15 months before they entered QUALIFY.
Dr. Komajda and his associates assessed each enrolled patient at baseline by their treatment with each of four guideline-recommended drug classes: an ACE inhibitor or angiotensin receptor blocker; a beta-blocker; an aldosterone receptor antagonist (ARA) if the patient’s functional status was rated as New York Heart Association class II, III, or IV; and ivabradine (Corlanor) if the patient was in NYHA class II, III, or IV, in sinus rhythm, had a heart rate of at least 70 beats per minute, and if the patient was in a country where ivabradine was available. Because patient enrollment occurred in 2013 and 2014, the study couldn’t include the new formulation of sacubitril plus valsartan (Entresto) in its analysis.
For each eligible drug class a patient received 1 point if their daily prescribed dosage was at least 50% of the recommended dosage (or 100% for an ARA), 0.5 points if the patient received the recommended drug but at a lower dosage, and no points if the drug wasn’t given. A patient also received 1 point if they were appropriately not given a drug because of a documented contraindication or intolerance. The researchers then calculated each patient’s “adherence score” by dividing their point total by the potentially maximum number of points that each patient could have received (a number that ranged from 2 to 4). They defined a score of 1 (which meant the patients received at least half the recommended dosage of all recommended drugs) as good adherence, a score of 0.51-0.99 as moderate adherence, and a score of 0.5 or less as poor adherence.
Because patient enrollment occurred during 2013 and 2014, the benchmark heart failure treatment guidelines were those issued by the European Society of Cardiology in 2012 (Eur Heart J. 2012 July;33[14]:1787-1847).
Concurrently with Dr. Komajda’s report at the meeting the results appeared in an article online (Eur J Heart Failure. 2017. doi: 10.1002/ejhf.887).
QUANTIFY was sponsored by Servier. Dr. Komajda has received honoraria from Servier and from Amgen, AstraZeneca, Bristol-Myers Squibb, Menarini, MSD, Novartis, Novo Nordisk, and Sanofi.
[email protected]
On Twitter @mitchelzoler
PARIS – Heart failure patients who received guideline-directed pharmacotherapy, at dosages that approached guideline-directed levels, had roughly half the 6-month mortality as did similar patients who did not receive this level of treatment in a real-world, observational study with more than 6,000 patients.
Adherence to pharmacologic treatment guidelines for patients with heart failure with reduced ejection fraction (HFrEF) “was strongly associated with clinical outcomes during 6-month follow-up,” Michel Komajda, MD, said at a meeting held by the Heart Failure Association of the European Society of Cardiology. The findings highlight the importance of closely following guideline recommendations in routine practice.
Dr. Komajda’s analysis included six different outcome measures. The most striking benefits were reductions in all-cause mortality, death from cardiovascular causes, and heart failure death. Each of these three 6-month endpoints were roughly twice as high in HFrEF patients who either had poor or moderate adherence to guideline treatments, compared with patients with good adherence, in multivariate analyses that controlled for baseline demographic and clinical differences. Good treatment adherence also aligned with reductions in heart failure hospitalizations and cardiovascular disease hospitalizations.
[polldaddy:9772629]
The analysis used data collected in the QUALIFY (Quality of Adherence to Guideline Recommendations for Life-Saving Treatment in Heart Failure: an International Survey) registry, which enrolled 7,127 HFrEF patients during September 2013–December 2014 at 547 centers in 36 countries, mostly in Europe, Asia, and Africa but also in Canada, Ecuador, and Australia. All enrolled patients had to have been hospitalized for worsening heart failure at least once during the 1-15 months before they entered QUALIFY.
Dr. Komajda and his associates assessed each enrolled patient at baseline by their treatment with each of four guideline-recommended drug classes: an ACE inhibitor or angiotensin receptor blocker; a beta-blocker; an aldosterone receptor antagonist (ARA) if the patient’s functional status was rated as New York Heart Association class II, III, or IV; and ivabradine (Corlanor) if the patient was in NYHA class II, III, or IV, in sinus rhythm, had a heart rate of at least 70 beats per minute, and if the patient was in a country where ivabradine was available. Because patient enrollment occurred in 2013 and 2014, the study couldn’t include the new formulation of sacubitril plus valsartan (Entresto) in its analysis.
For each eligible drug class a patient received 1 point if their daily prescribed dosage was at least 50% of the recommended dosage (or 100% for an ARA), 0.5 points if the patient received the recommended drug but at a lower dosage, and no points if the drug wasn’t given. A patient also received 1 point if they were appropriately not given a drug because of a documented contraindication or intolerance. The researchers then calculated each patient’s “adherence score” by dividing their point total by the potentially maximum number of points that each patient could have received (a number that ranged from 2 to 4). They defined a score of 1 (which meant the patients received at least half the recommended dosage of all recommended drugs) as good adherence, a score of 0.51-0.99 as moderate adherence, and a score of 0.5 or less as poor adherence.
Because patient enrollment occurred during 2013 and 2014, the benchmark heart failure treatment guidelines were those issued by the European Society of Cardiology in 2012 (Eur Heart J. 2012 July;33[14]:1787-1847).
Concurrently with Dr. Komajda’s report at the meeting the results appeared in an article online (Eur J Heart Failure. 2017. doi: 10.1002/ejhf.887).
QUANTIFY was sponsored by Servier. Dr. Komajda has received honoraria from Servier and from Amgen, AstraZeneca, Bristol-Myers Squibb, Menarini, MSD, Novartis, Novo Nordisk, and Sanofi.
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: Six-month all-cause, cardiovascular, and heart failure mortalities were doubled in patients not on guideline-adherent therapy and dosages.
Data source: QUANTIFY, an international registry with 6,669 HFrEF patients followed for 6 months.
Disclosures: QUANTIFY was sponsored by Servier. Dr. Komajda has received honoraria from Servier and from Amgen, AstraZeneca, Bristol-Myers Squibb, Menarini, MSD, Novartis, Novo Nordisk, and Sanofi.
Atrial fibrillation blunts beta-blockers for HFrEF
PARIS – Maximal beta-blocker treatment and lower heart rates are effective at cutting all-cause mortality in patients with heart failure with reduced ejection fraction (HFrEF) who are also in sinus rhythm, but it’s a totally different story for patients with similar heart failure plus atrial fibrillation. In the atrial fibrillation subgroup, treatment with a beta-blocker linked with no mortality benefit, and lower heart rates – below 70 beats per minute – appeared to actually link with worse patient survival, based on a meta-analysis of data from 11 beta-blocker trials with a total of more than 17,000 patients.
“Beta blockers may be doing good in heart failure patients with atrial fibrillation, but they also are doing harm that neutralizes any good they do.” In patients with HFrEF and atrial fibrillation, “I don’t like to see the heart rate below 80 beats per minute,” John G.F. Cleland, MD, said at a meeting held by the Heart Failure Association of the ESC.
For HFrEF patients in sinus rhythm “it is not only important to achieve the target beta-blocker dosage, but also important to insure an adequately reduced heart rate” which might also mean adding treatment with ivabradine (Corlaner). But for HFrEF patients with atrial fibrillation “more and more data suggest that the optimal heart rate may be 80-90 beats per minutes [bpm] at rest, and we do a disservice to these patients by any additional control of their ventricular rate,” said Dr. Cleland, professor of cardiology at the University of Glasgow.
“We’ve perhaps been too aggressive with heart-rate control in HFrEF patients with atrial fibrillation,” he added in an interview. In these patients “in the range of 60-100 bpm it doesn’t seem to make a lot of difference what the heart rate is, and, if it is less than 70 bpm, patients seem to do a little worse. When we treat these patients with a beta-blocker we don’t see benefit in any way that we’ve looked at the data.”
In contrast, among HFrEF patients in sinus rhythm “beta-blocker treatment is similarly effective regardless of what the baseline heart rate was. The benefit was as great when the baseline rate was 70 bpm or 90 bpm, so heart rate is not a great predictor of beta-blocker benefit in these patients. Patients who tolerated the full beta-blocker dosage had the greatest benefit, and patients who achieved the slowest heart rates also had the greatest benefit.”
In the multivariate models that Dr. Cleland and his associates tested in their meta-analysis, in HFrEF patients in sinus rhythm, the relationship between reduced heart rate and mortality benefit was stronger statistically than between beta-blocker dosage and reduced mortality, he said. “This suggests to me that, while we should use the targeted beta-blocker dosages when we can, it’s more important to achieve a target heart rate in these patients of 55-65 bpm.”
Dr. Cleland hypothesized, based on a report presented at the same meeting by a different research group, that reduced heart rate is not beneficial in HFrEF patients with atrial fibrillation because in this subgroup slower heart rates linked with an increased number of brief pauses in left ventricular pumping. These pauses may result in ventricular arrhythmias, he speculated. “It may be that beta-blockers are equally effective at slowing heart rate in patients with or without atrial fibrillation, but there is also harm from beta-blockers because they’re causing pauses in patients with atrial fibrillation,” he said.
These days, if he has a HFrEF patient with atrial fibrillation whose heart rate slows to 60 bpm, he will stop digoxin treatment if the patient is on that drug, and he will also reduce the beta-blocker dosage but not discontinue it.
The findings came from the Collaborative Systematic Overview of Randomized Controlled Trials of Beta-Blockers in the Treatment of Heart Failure (BB-META-HF), which included data from 11 large beta-blocker randomized trials in heart failure that had been published during 1993-2005. The analysis included data from 17,378 HFrEF patients, with 14,313 (82%) in sinus rhythm and 3,065 (18%) with atrial fibrillation. Follow-up data of patients on treatment was available for 15,007 of these patients.
Dr. Cleland and his associates showed in multivariate analyses that, when they controlled for several baseline demographic and clinical variables among patients in sinus rhythm who received a beta-blocker, the follow-up all-cause mortality fell by 36%, compared with placebo, in patients with a resting baseline heart rate of less than 70 bpm; by 21%, compared with placebo, in patients with a baseline heart rate of 70-90 bpm; and by 38%, compared with placebo, in patients with a baseline heart rate of more than 90 bpm. All three reductions were statistically significant. In contrast, among patients who also had atrial fibrillation beta-blocker treatment linked with no significant mortality reduction, compared with placebo, for patients with any baseline heart rate.
Concurrently with Dr. Cleland’s report at the meeting the results appeared online (J Amer Coll Cardiol. 2017 Apr 30. doi: 10.1016/j.jacc.2017.04.001).
[email protected]
On Twitter @mitchelzoler
The findings from this analysis have several implications. First, the association of reduced mortality with reduced heart rate occurred only in patients in sinus rhythm. The irregular heart rhythms in patients with atrial fibrillation may counterbalance any reverse remodeling effects that come from reducing heart rate.
Also, the beneficial effect of beta-blocker treatment was roughly similar regardless of whether baseline heart rate was high or low. This distinguishes beta-blockers from ivabradine, a drug that only reduces heart rate. The magnitude of benefit from ivabradine treatment depends on a patient’s baseline heart rate. The observation that beta-blockers do not have the same limitation suggests that the mechanism of action of beta-blockers may go beyond their heart rate effect. It may also result from the effect of beta-blockers on antagonizing toxic effects from beta-adrenergic stimulation.
The pooled analysis also showed that many patients with HFrEF in sinus rhythm continued to have a high heart rate despite beta-blocker treatment. These patients may get additional benefit from further treatment to reduce their heart rate, with an agent like ivabradine.
But we must be cautious in interpreting the findings because they represent a secondary analysis, and the endpoint studied does not take into account quality of life, exercise tolerance, heart rate control, and tachyarrhythmias. We need prospective, randomized trials of HFrEF patients in sinus rhythm and with atrial fibrillation to better understand how to optimally treat these different types of patients.
The findings highlight that beta-blockers remain a mainstay of treatment for patients with HFrEF in sinus rhythm, and that we have more limited treatment options for HFrEF patients with atrial fibrillation.
Michael Böhm, MD, is professor and director of the cardiology clinic at Saarland University Hospital in Homburg, Germany. He has received honoraria from Bayer, Medtronic, Servier, and Pfizer, and he was a coauthor on the report presented by Dr. Cleland. He made these comments as designated discussant for the study.
The findings from this analysis have several implications. First, the association of reduced mortality with reduced heart rate occurred only in patients in sinus rhythm. The irregular heart rhythms in patients with atrial fibrillation may counterbalance any reverse remodeling effects that come from reducing heart rate.
Also, the beneficial effect of beta-blocker treatment was roughly similar regardless of whether baseline heart rate was high or low. This distinguishes beta-blockers from ivabradine, a drug that only reduces heart rate. The magnitude of benefit from ivabradine treatment depends on a patient’s baseline heart rate. The observation that beta-blockers do not have the same limitation suggests that the mechanism of action of beta-blockers may go beyond their heart rate effect. It may also result from the effect of beta-blockers on antagonizing toxic effects from beta-adrenergic stimulation.
The pooled analysis also showed that many patients with HFrEF in sinus rhythm continued to have a high heart rate despite beta-blocker treatment. These patients may get additional benefit from further treatment to reduce their heart rate, with an agent like ivabradine.
But we must be cautious in interpreting the findings because they represent a secondary analysis, and the endpoint studied does not take into account quality of life, exercise tolerance, heart rate control, and tachyarrhythmias. We need prospective, randomized trials of HFrEF patients in sinus rhythm and with atrial fibrillation to better understand how to optimally treat these different types of patients.
The findings highlight that beta-blockers remain a mainstay of treatment for patients with HFrEF in sinus rhythm, and that we have more limited treatment options for HFrEF patients with atrial fibrillation.
Michael Böhm, MD, is professor and director of the cardiology clinic at Saarland University Hospital in Homburg, Germany. He has received honoraria from Bayer, Medtronic, Servier, and Pfizer, and he was a coauthor on the report presented by Dr. Cleland. He made these comments as designated discussant for the study.
The findings from this analysis have several implications. First, the association of reduced mortality with reduced heart rate occurred only in patients in sinus rhythm. The irregular heart rhythms in patients with atrial fibrillation may counterbalance any reverse remodeling effects that come from reducing heart rate.
Also, the beneficial effect of beta-blocker treatment was roughly similar regardless of whether baseline heart rate was high or low. This distinguishes beta-blockers from ivabradine, a drug that only reduces heart rate. The magnitude of benefit from ivabradine treatment depends on a patient’s baseline heart rate. The observation that beta-blockers do not have the same limitation suggests that the mechanism of action of beta-blockers may go beyond their heart rate effect. It may also result from the effect of beta-blockers on antagonizing toxic effects from beta-adrenergic stimulation.
The pooled analysis also showed that many patients with HFrEF in sinus rhythm continued to have a high heart rate despite beta-blocker treatment. These patients may get additional benefit from further treatment to reduce their heart rate, with an agent like ivabradine.
But we must be cautious in interpreting the findings because they represent a secondary analysis, and the endpoint studied does not take into account quality of life, exercise tolerance, heart rate control, and tachyarrhythmias. We need prospective, randomized trials of HFrEF patients in sinus rhythm and with atrial fibrillation to better understand how to optimally treat these different types of patients.
The findings highlight that beta-blockers remain a mainstay of treatment for patients with HFrEF in sinus rhythm, and that we have more limited treatment options for HFrEF patients with atrial fibrillation.
Michael Böhm, MD, is professor and director of the cardiology clinic at Saarland University Hospital in Homburg, Germany. He has received honoraria from Bayer, Medtronic, Servier, and Pfizer, and he was a coauthor on the report presented by Dr. Cleland. He made these comments as designated discussant for the study.
PARIS – Maximal beta-blocker treatment and lower heart rates are effective at cutting all-cause mortality in patients with heart failure with reduced ejection fraction (HFrEF) who are also in sinus rhythm, but it’s a totally different story for patients with similar heart failure plus atrial fibrillation. In the atrial fibrillation subgroup, treatment with a beta-blocker linked with no mortality benefit, and lower heart rates – below 70 beats per minute – appeared to actually link with worse patient survival, based on a meta-analysis of data from 11 beta-blocker trials with a total of more than 17,000 patients.
“Beta blockers may be doing good in heart failure patients with atrial fibrillation, but they also are doing harm that neutralizes any good they do.” In patients with HFrEF and atrial fibrillation, “I don’t like to see the heart rate below 80 beats per minute,” John G.F. Cleland, MD, said at a meeting held by the Heart Failure Association of the ESC.
For HFrEF patients in sinus rhythm “it is not only important to achieve the target beta-blocker dosage, but also important to insure an adequately reduced heart rate” which might also mean adding treatment with ivabradine (Corlaner). But for HFrEF patients with atrial fibrillation “more and more data suggest that the optimal heart rate may be 80-90 beats per minutes [bpm] at rest, and we do a disservice to these patients by any additional control of their ventricular rate,” said Dr. Cleland, professor of cardiology at the University of Glasgow.
“We’ve perhaps been too aggressive with heart-rate control in HFrEF patients with atrial fibrillation,” he added in an interview. In these patients “in the range of 60-100 bpm it doesn’t seem to make a lot of difference what the heart rate is, and, if it is less than 70 bpm, patients seem to do a little worse. When we treat these patients with a beta-blocker we don’t see benefit in any way that we’ve looked at the data.”
In contrast, among HFrEF patients in sinus rhythm “beta-blocker treatment is similarly effective regardless of what the baseline heart rate was. The benefit was as great when the baseline rate was 70 bpm or 90 bpm, so heart rate is not a great predictor of beta-blocker benefit in these patients. Patients who tolerated the full beta-blocker dosage had the greatest benefit, and patients who achieved the slowest heart rates also had the greatest benefit.”
In the multivariate models that Dr. Cleland and his associates tested in their meta-analysis, in HFrEF patients in sinus rhythm, the relationship between reduced heart rate and mortality benefit was stronger statistically than between beta-blocker dosage and reduced mortality, he said. “This suggests to me that, while we should use the targeted beta-blocker dosages when we can, it’s more important to achieve a target heart rate in these patients of 55-65 bpm.”
Dr. Cleland hypothesized, based on a report presented at the same meeting by a different research group, that reduced heart rate is not beneficial in HFrEF patients with atrial fibrillation because in this subgroup slower heart rates linked with an increased number of brief pauses in left ventricular pumping. These pauses may result in ventricular arrhythmias, he speculated. “It may be that beta-blockers are equally effective at slowing heart rate in patients with or without atrial fibrillation, but there is also harm from beta-blockers because they’re causing pauses in patients with atrial fibrillation,” he said.
These days, if he has a HFrEF patient with atrial fibrillation whose heart rate slows to 60 bpm, he will stop digoxin treatment if the patient is on that drug, and he will also reduce the beta-blocker dosage but not discontinue it.
The findings came from the Collaborative Systematic Overview of Randomized Controlled Trials of Beta-Blockers in the Treatment of Heart Failure (BB-META-HF), which included data from 11 large beta-blocker randomized trials in heart failure that had been published during 1993-2005. The analysis included data from 17,378 HFrEF patients, with 14,313 (82%) in sinus rhythm and 3,065 (18%) with atrial fibrillation. Follow-up data of patients on treatment was available for 15,007 of these patients.
Dr. Cleland and his associates showed in multivariate analyses that, when they controlled for several baseline demographic and clinical variables among patients in sinus rhythm who received a beta-blocker, the follow-up all-cause mortality fell by 36%, compared with placebo, in patients with a resting baseline heart rate of less than 70 bpm; by 21%, compared with placebo, in patients with a baseline heart rate of 70-90 bpm; and by 38%, compared with placebo, in patients with a baseline heart rate of more than 90 bpm. All three reductions were statistically significant. In contrast, among patients who also had atrial fibrillation beta-blocker treatment linked with no significant mortality reduction, compared with placebo, for patients with any baseline heart rate.
Concurrently with Dr. Cleland’s report at the meeting the results appeared online (J Amer Coll Cardiol. 2017 Apr 30. doi: 10.1016/j.jacc.2017.04.001).
[email protected]
On Twitter @mitchelzoler
PARIS – Maximal beta-blocker treatment and lower heart rates are effective at cutting all-cause mortality in patients with heart failure with reduced ejection fraction (HFrEF) who are also in sinus rhythm, but it’s a totally different story for patients with similar heart failure plus atrial fibrillation. In the atrial fibrillation subgroup, treatment with a beta-blocker linked with no mortality benefit, and lower heart rates – below 70 beats per minute – appeared to actually link with worse patient survival, based on a meta-analysis of data from 11 beta-blocker trials with a total of more than 17,000 patients.
“Beta blockers may be doing good in heart failure patients with atrial fibrillation, but they also are doing harm that neutralizes any good they do.” In patients with HFrEF and atrial fibrillation, “I don’t like to see the heart rate below 80 beats per minute,” John G.F. Cleland, MD, said at a meeting held by the Heart Failure Association of the ESC.
For HFrEF patients in sinus rhythm “it is not only important to achieve the target beta-blocker dosage, but also important to insure an adequately reduced heart rate” which might also mean adding treatment with ivabradine (Corlaner). But for HFrEF patients with atrial fibrillation “more and more data suggest that the optimal heart rate may be 80-90 beats per minutes [bpm] at rest, and we do a disservice to these patients by any additional control of their ventricular rate,” said Dr. Cleland, professor of cardiology at the University of Glasgow.
“We’ve perhaps been too aggressive with heart-rate control in HFrEF patients with atrial fibrillation,” he added in an interview. In these patients “in the range of 60-100 bpm it doesn’t seem to make a lot of difference what the heart rate is, and, if it is less than 70 bpm, patients seem to do a little worse. When we treat these patients with a beta-blocker we don’t see benefit in any way that we’ve looked at the data.”
In contrast, among HFrEF patients in sinus rhythm “beta-blocker treatment is similarly effective regardless of what the baseline heart rate was. The benefit was as great when the baseline rate was 70 bpm or 90 bpm, so heart rate is not a great predictor of beta-blocker benefit in these patients. Patients who tolerated the full beta-blocker dosage had the greatest benefit, and patients who achieved the slowest heart rates also had the greatest benefit.”
In the multivariate models that Dr. Cleland and his associates tested in their meta-analysis, in HFrEF patients in sinus rhythm, the relationship between reduced heart rate and mortality benefit was stronger statistically than between beta-blocker dosage and reduced mortality, he said. “This suggests to me that, while we should use the targeted beta-blocker dosages when we can, it’s more important to achieve a target heart rate in these patients of 55-65 bpm.”
Dr. Cleland hypothesized, based on a report presented at the same meeting by a different research group, that reduced heart rate is not beneficial in HFrEF patients with atrial fibrillation because in this subgroup slower heart rates linked with an increased number of brief pauses in left ventricular pumping. These pauses may result in ventricular arrhythmias, he speculated. “It may be that beta-blockers are equally effective at slowing heart rate in patients with or without atrial fibrillation, but there is also harm from beta-blockers because they’re causing pauses in patients with atrial fibrillation,” he said.
These days, if he has a HFrEF patient with atrial fibrillation whose heart rate slows to 60 bpm, he will stop digoxin treatment if the patient is on that drug, and he will also reduce the beta-blocker dosage but not discontinue it.
The findings came from the Collaborative Systematic Overview of Randomized Controlled Trials of Beta-Blockers in the Treatment of Heart Failure (BB-META-HF), which included data from 11 large beta-blocker randomized trials in heart failure that had been published during 1993-2005. The analysis included data from 17,378 HFrEF patients, with 14,313 (82%) in sinus rhythm and 3,065 (18%) with atrial fibrillation. Follow-up data of patients on treatment was available for 15,007 of these patients.
Dr. Cleland and his associates showed in multivariate analyses that, when they controlled for several baseline demographic and clinical variables among patients in sinus rhythm who received a beta-blocker, the follow-up all-cause mortality fell by 36%, compared with placebo, in patients with a resting baseline heart rate of less than 70 bpm; by 21%, compared with placebo, in patients with a baseline heart rate of 70-90 bpm; and by 38%, compared with placebo, in patients with a baseline heart rate of more than 90 bpm. All three reductions were statistically significant. In contrast, among patients who also had atrial fibrillation beta-blocker treatment linked with no significant mortality reduction, compared with placebo, for patients with any baseline heart rate.
Concurrently with Dr. Cleland’s report at the meeting the results appeared online (J Amer Coll Cardiol. 2017 Apr 30. doi: 10.1016/j.jacc.2017.04.001).
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: All-cause mortality was similar in patients with HFrEF and atrial fibrillation regardless of whether they received a beta-blocker or placebo.
Data source: BB-META-HF, a meta-analysis of 11 beta-blocker treatment trials with 17,378 HFrEF patients.
Disclosures: BB-META-HF received funding from Menarini and GlaxoSmithKline. Dr. Cleland has received research funding and honoraria from GlaxoSmithKline.
A prescription for heart failure success: Change the name
PARIS – Does heart failure’s name doom any progress against the disease?
That was the provocative premise advanced by Lynne Warner Stevenson, MD, who suggested that efforts to prevent, diagnose, and treat the disease would go better if it could only jettison that unfortunate word “failure,” its hard-wired albatross.
Dr. Stevenson offered several potentially superior alternatives, including cardiac insufficiency, heart dysfunction, and her favorite, cardiomyopathy.
“I used to be a purist and felt you couldn’t call it cardiomyopathy if the patient also had coronary or valve disease, but now we see it all the time – ischemic cardiomyopathy or valvular cardiomyopathy,” she said at a meeting held by the Heart Failure Association of the ESC.
“Is heart failure still the best diagnosis” for the entire spectrum of disease that most patients progress through ,including the many patients in earlier stages of the disease who do not have a truly failing heart? “Perhaps cardiomyopathy is the condition and heart failure is the transition,” she proposed.
To Dr. Stevenson, it’s more than just semantics.
“Words are hugely powerful,” she explained in an interview following her talk. “I think patients do not want to be seen as having heart failure. They don’t want to think of themselves as having heart failure. I think it can make them delay getting care, and it makes them ignore the disease. I worry about that a lot. I also worry that patients don’t provide support to each other that they could. Patients tend to hide that they have heart failure. We need to come up with a term that does not make patients ashamed of their disease.”
Part of the problem, Dr. Stevenson said, is that the name heart failure can be very misleading depending on the stage of the disease that patients have. Patients with stage B (presymptomatic) disease and those with mild stage C disease “don’t see themselves as having heart failure,” as having a heart that has failed them. “We need to be able to convince these patients that they have a disease that we need to treat carefully and aggressively.”
Additionally, labeling tens of millions of people as having stage A heart failure, which is presymptomatic and occurs before the heart shows any sign of damage or dysfunction, is also counterproductive, maintained Dr. Stevenson, professor of medicine at Harvard Medical School and director of the Cardiomyopathy and Heart Failure Program at Brigham and Women’s Hospital in Boston.
“So many people are at risk of developing heart failure,” she noted, including patients with hypertension, diabetes, or coronary artery disease. To label them all as already also having heart failure at that stage “tends to make them ignore the disease that we are trying to get them to pay attention to. Telling patients they have the disease that we are trying to prevent doesn’t help.”
Calling the whole range of the disease heart failure also confuses patients and others. “Patients ask me, ‘How can I have heart failure without any symptoms?’ ‘My ejection fraction improved to almost normal; do I still have heart failure?’ and ‘I don’t understand how my heart muscle is strong but my heart is failing,’ ” she said
For Dr. Stevenson, perhaps the biggest problem is the stigma of failure and the way that word ties a huge weight to the disease that prompts patients and caregivers alike to relegate it to a hidden and neglected place.
“It’s failure. Who is proud to have heart failure? Where are the marches for heart failure? Where are the celebrity champions for heart failure? We have celebrities who are happy to admit that they have Parkinson’s disease, ALS [amyotrophic lateral sclerosis], drug addiction, and even erectile dysfunction, but no one wants to say they have heart failure. We can’t get any traction behind heart failure. It doesn’t sound very inspiring,” an issue that even percolates down to dissuading clinicians from pursuing a career in heart failure care. Young people do not aspire to go into failure, she said.
“We need to call it something else.”
[email protected]
On Twitter @mitchelzoler
PARIS – Does heart failure’s name doom any progress against the disease?
That was the provocative premise advanced by Lynne Warner Stevenson, MD, who suggested that efforts to prevent, diagnose, and treat the disease would go better if it could only jettison that unfortunate word “failure,” its hard-wired albatross.
Dr. Stevenson offered several potentially superior alternatives, including cardiac insufficiency, heart dysfunction, and her favorite, cardiomyopathy.
“I used to be a purist and felt you couldn’t call it cardiomyopathy if the patient also had coronary or valve disease, but now we see it all the time – ischemic cardiomyopathy or valvular cardiomyopathy,” she said at a meeting held by the Heart Failure Association of the ESC.
“Is heart failure still the best diagnosis” for the entire spectrum of disease that most patients progress through ,including the many patients in earlier stages of the disease who do not have a truly failing heart? “Perhaps cardiomyopathy is the condition and heart failure is the transition,” she proposed.
To Dr. Stevenson, it’s more than just semantics.
“Words are hugely powerful,” she explained in an interview following her talk. “I think patients do not want to be seen as having heart failure. They don’t want to think of themselves as having heart failure. I think it can make them delay getting care, and it makes them ignore the disease. I worry about that a lot. I also worry that patients don’t provide support to each other that they could. Patients tend to hide that they have heart failure. We need to come up with a term that does not make patients ashamed of their disease.”
Part of the problem, Dr. Stevenson said, is that the name heart failure can be very misleading depending on the stage of the disease that patients have. Patients with stage B (presymptomatic) disease and those with mild stage C disease “don’t see themselves as having heart failure,” as having a heart that has failed them. “We need to be able to convince these patients that they have a disease that we need to treat carefully and aggressively.”
Additionally, labeling tens of millions of people as having stage A heart failure, which is presymptomatic and occurs before the heart shows any sign of damage or dysfunction, is also counterproductive, maintained Dr. Stevenson, professor of medicine at Harvard Medical School and director of the Cardiomyopathy and Heart Failure Program at Brigham and Women’s Hospital in Boston.
“So many people are at risk of developing heart failure,” she noted, including patients with hypertension, diabetes, or coronary artery disease. To label them all as already also having heart failure at that stage “tends to make them ignore the disease that we are trying to get them to pay attention to. Telling patients they have the disease that we are trying to prevent doesn’t help.”
Calling the whole range of the disease heart failure also confuses patients and others. “Patients ask me, ‘How can I have heart failure without any symptoms?’ ‘My ejection fraction improved to almost normal; do I still have heart failure?’ and ‘I don’t understand how my heart muscle is strong but my heart is failing,’ ” she said
For Dr. Stevenson, perhaps the biggest problem is the stigma of failure and the way that word ties a huge weight to the disease that prompts patients and caregivers alike to relegate it to a hidden and neglected place.
“It’s failure. Who is proud to have heart failure? Where are the marches for heart failure? Where are the celebrity champions for heart failure? We have celebrities who are happy to admit that they have Parkinson’s disease, ALS [amyotrophic lateral sclerosis], drug addiction, and even erectile dysfunction, but no one wants to say they have heart failure. We can’t get any traction behind heart failure. It doesn’t sound very inspiring,” an issue that even percolates down to dissuading clinicians from pursuing a career in heart failure care. Young people do not aspire to go into failure, she said.
“We need to call it something else.”
[email protected]
On Twitter @mitchelzoler
PARIS – Does heart failure’s name doom any progress against the disease?
That was the provocative premise advanced by Lynne Warner Stevenson, MD, who suggested that efforts to prevent, diagnose, and treat the disease would go better if it could only jettison that unfortunate word “failure,” its hard-wired albatross.
Dr. Stevenson offered several potentially superior alternatives, including cardiac insufficiency, heart dysfunction, and her favorite, cardiomyopathy.
“I used to be a purist and felt you couldn’t call it cardiomyopathy if the patient also had coronary or valve disease, but now we see it all the time – ischemic cardiomyopathy or valvular cardiomyopathy,” she said at a meeting held by the Heart Failure Association of the ESC.
“Is heart failure still the best diagnosis” for the entire spectrum of disease that most patients progress through ,including the many patients in earlier stages of the disease who do not have a truly failing heart? “Perhaps cardiomyopathy is the condition and heart failure is the transition,” she proposed.
To Dr. Stevenson, it’s more than just semantics.
“Words are hugely powerful,” she explained in an interview following her talk. “I think patients do not want to be seen as having heart failure. They don’t want to think of themselves as having heart failure. I think it can make them delay getting care, and it makes them ignore the disease. I worry about that a lot. I also worry that patients don’t provide support to each other that they could. Patients tend to hide that they have heart failure. We need to come up with a term that does not make patients ashamed of their disease.”
Part of the problem, Dr. Stevenson said, is that the name heart failure can be very misleading depending on the stage of the disease that patients have. Patients with stage B (presymptomatic) disease and those with mild stage C disease “don’t see themselves as having heart failure,” as having a heart that has failed them. “We need to be able to convince these patients that they have a disease that we need to treat carefully and aggressively.”
Additionally, labeling tens of millions of people as having stage A heart failure, which is presymptomatic and occurs before the heart shows any sign of damage or dysfunction, is also counterproductive, maintained Dr. Stevenson, professor of medicine at Harvard Medical School and director of the Cardiomyopathy and Heart Failure Program at Brigham and Women’s Hospital in Boston.
“So many people are at risk of developing heart failure,” she noted, including patients with hypertension, diabetes, or coronary artery disease. To label them all as already also having heart failure at that stage “tends to make them ignore the disease that we are trying to get them to pay attention to. Telling patients they have the disease that we are trying to prevent doesn’t help.”
Calling the whole range of the disease heart failure also confuses patients and others. “Patients ask me, ‘How can I have heart failure without any symptoms?’ ‘My ejection fraction improved to almost normal; do I still have heart failure?’ and ‘I don’t understand how my heart muscle is strong but my heart is failing,’ ” she said
For Dr. Stevenson, perhaps the biggest problem is the stigma of failure and the way that word ties a huge weight to the disease that prompts patients and caregivers alike to relegate it to a hidden and neglected place.
“It’s failure. Who is proud to have heart failure? Where are the marches for heart failure? Where are the celebrity champions for heart failure? We have celebrities who are happy to admit that they have Parkinson’s disease, ALS [amyotrophic lateral sclerosis], drug addiction, and even erectile dysfunction, but no one wants to say they have heart failure. We can’t get any traction behind heart failure. It doesn’t sound very inspiring,” an issue that even percolates down to dissuading clinicians from pursuing a career in heart failure care. Young people do not aspire to go into failure, she said.
“We need to call it something else.”
[email protected]
On Twitter @mitchelzoler
EXPERT ANALYSIS FROM HEART FAILURE 2017
Spironolactone’s HFpEF benefit happens mostly in women
PARIS – Just when the aldosterone receptor antagonists spironolactone and eplerenone received official recognition in the 2017 U.S. heart failure guidelines as the only drug class that benefits patients with heart failure with preserved ejection fraction (HFpEF), a new post-hoc analysis of the pivotal evidence suggests the benefit is mostly in women, with little benefit to men.
The new analysis used data collected from TOPCAT (Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist), which randomized patients with HFpEF to treatment with spironolactone or placebo. Results from the overall study were neutral for the primary outcome of cardiovascular death, aborted cardiac arrest, and heart failure hospitalization (N Engl J Med. 2014 April 10;370[15]:1383-92). However, a series of post-hoc analyses showed that a high percentage of patients enrolled at centers in Russia or Georgia did not match the expected HFpEF profile, and these patients had poor responses to spironolactone. In contrast, patients enrolled at centers in the Americas more frequently matched the study’s target HFpEF profile, and they showed significant improvement for the primary endpoint (Circulation. 2015 Jan 6;131[1]:34-42).
The new analysis, focused on those patients from the Americas, shows that the primary efficacy outcome from the TOPCAT trial was a statistically significant 18% lower in women than in men, David Kao, MD, reported at a meeting of the Heart Failure Association of the ESC.
“The observation that most of the benefit [from spironolactone treatment] may have been in women is interesting, but I don’t think that it would stop me from using [an aldosterone receptor antagonist] in men,” said Dr. Kao while presenting his report. The outcomes in both men and women “head in the same direction. It’s just that the mortality benefit is much clearer in women,” said Dr. Kao, a cardiologist at the University of Colorado at Denver, Aurora.
Among the patients enrolled at centers in North and South America, 882 were women, and 885 were men. Dr. Kao used the data collected in TOPCAT to calculate the impact of spironolactone treatment relative to placebo on outcomes just among women in the Americas and just among men.
The difference in all-cause mortality associated with spironolactone treatment had an even sharper sex disparity that in the primary outcome. Overall, all-cause mortality was 28% less common among women, compared with men, in the Americas. Among women, spironolactone treatment linked with a 30% reduced all-cause mortality rate, compared with placebo. Among men, the survival curves of those on spironolactone or placebo superimposed.
Dr. Kao said that published study results in rats had suggested that eplerenone (Inspra), an aldosterone receptor antagonist like spironolactone, had a more potent effect in females rats, compared with male rats, for preserving left ventricular function and size following myocardial damage. In addition, women with HFpEF often have more left ventricular hypertrophy, while men often have more diastolic dysfunction, and prior findings had suggested that aldosterone plays a role in left ventricular hypertrophy.
TOPCAT received no commercial funding. Dr. Kao had no disclosures.
[email protected]
On Twitter @mitchelzoler
PARIS – Just when the aldosterone receptor antagonists spironolactone and eplerenone received official recognition in the 2017 U.S. heart failure guidelines as the only drug class that benefits patients with heart failure with preserved ejection fraction (HFpEF), a new post-hoc analysis of the pivotal evidence suggests the benefit is mostly in women, with little benefit to men.
The new analysis used data collected from TOPCAT (Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist), which randomized patients with HFpEF to treatment with spironolactone or placebo. Results from the overall study were neutral for the primary outcome of cardiovascular death, aborted cardiac arrest, and heart failure hospitalization (N Engl J Med. 2014 April 10;370[15]:1383-92). However, a series of post-hoc analyses showed that a high percentage of patients enrolled at centers in Russia or Georgia did not match the expected HFpEF profile, and these patients had poor responses to spironolactone. In contrast, patients enrolled at centers in the Americas more frequently matched the study’s target HFpEF profile, and they showed significant improvement for the primary endpoint (Circulation. 2015 Jan 6;131[1]:34-42).
The new analysis, focused on those patients from the Americas, shows that the primary efficacy outcome from the TOPCAT trial was a statistically significant 18% lower in women than in men, David Kao, MD, reported at a meeting of the Heart Failure Association of the ESC.
“The observation that most of the benefit [from spironolactone treatment] may have been in women is interesting, but I don’t think that it would stop me from using [an aldosterone receptor antagonist] in men,” said Dr. Kao while presenting his report. The outcomes in both men and women “head in the same direction. It’s just that the mortality benefit is much clearer in women,” said Dr. Kao, a cardiologist at the University of Colorado at Denver, Aurora.
Among the patients enrolled at centers in North and South America, 882 were women, and 885 were men. Dr. Kao used the data collected in TOPCAT to calculate the impact of spironolactone treatment relative to placebo on outcomes just among women in the Americas and just among men.
The difference in all-cause mortality associated with spironolactone treatment had an even sharper sex disparity that in the primary outcome. Overall, all-cause mortality was 28% less common among women, compared with men, in the Americas. Among women, spironolactone treatment linked with a 30% reduced all-cause mortality rate, compared with placebo. Among men, the survival curves of those on spironolactone or placebo superimposed.
Dr. Kao said that published study results in rats had suggested that eplerenone (Inspra), an aldosterone receptor antagonist like spironolactone, had a more potent effect in females rats, compared with male rats, for preserving left ventricular function and size following myocardial damage. In addition, women with HFpEF often have more left ventricular hypertrophy, while men often have more diastolic dysfunction, and prior findings had suggested that aldosterone plays a role in left ventricular hypertrophy.
TOPCAT received no commercial funding. Dr. Kao had no disclosures.
[email protected]
On Twitter @mitchelzoler
PARIS – Just when the aldosterone receptor antagonists spironolactone and eplerenone received official recognition in the 2017 U.S. heart failure guidelines as the only drug class that benefits patients with heart failure with preserved ejection fraction (HFpEF), a new post-hoc analysis of the pivotal evidence suggests the benefit is mostly in women, with little benefit to men.
The new analysis used data collected from TOPCAT (Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist), which randomized patients with HFpEF to treatment with spironolactone or placebo. Results from the overall study were neutral for the primary outcome of cardiovascular death, aborted cardiac arrest, and heart failure hospitalization (N Engl J Med. 2014 April 10;370[15]:1383-92). However, a series of post-hoc analyses showed that a high percentage of patients enrolled at centers in Russia or Georgia did not match the expected HFpEF profile, and these patients had poor responses to spironolactone. In contrast, patients enrolled at centers in the Americas more frequently matched the study’s target HFpEF profile, and they showed significant improvement for the primary endpoint (Circulation. 2015 Jan 6;131[1]:34-42).
The new analysis, focused on those patients from the Americas, shows that the primary efficacy outcome from the TOPCAT trial was a statistically significant 18% lower in women than in men, David Kao, MD, reported at a meeting of the Heart Failure Association of the ESC.
“The observation that most of the benefit [from spironolactone treatment] may have been in women is interesting, but I don’t think that it would stop me from using [an aldosterone receptor antagonist] in men,” said Dr. Kao while presenting his report. The outcomes in both men and women “head in the same direction. It’s just that the mortality benefit is much clearer in women,” said Dr. Kao, a cardiologist at the University of Colorado at Denver, Aurora.
Among the patients enrolled at centers in North and South America, 882 were women, and 885 were men. Dr. Kao used the data collected in TOPCAT to calculate the impact of spironolactone treatment relative to placebo on outcomes just among women in the Americas and just among men.
The difference in all-cause mortality associated with spironolactone treatment had an even sharper sex disparity that in the primary outcome. Overall, all-cause mortality was 28% less common among women, compared with men, in the Americas. Among women, spironolactone treatment linked with a 30% reduced all-cause mortality rate, compared with placebo. Among men, the survival curves of those on spironolactone or placebo superimposed.
Dr. Kao said that published study results in rats had suggested that eplerenone (Inspra), an aldosterone receptor antagonist like spironolactone, had a more potent effect in females rats, compared with male rats, for preserving left ventricular function and size following myocardial damage. In addition, women with HFpEF often have more left ventricular hypertrophy, while men often have more diastolic dysfunction, and prior findings had suggested that aldosterone plays a role in left ventricular hypertrophy.
TOPCAT received no commercial funding. Dr. Kao had no disclosures.
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: Women from the Americas in TOPCAT had an 18% lower rate of primary endpoint events, compared with men in the trial.
Data source: TOPCAT, a multicenter, randomized study with 3,445 patients.
Disclosures: TOPCAT received no commercial funding. Dr. Kao had no disclosures.
PPIs triple heart failure hospitalization risk in atrial fib patients
PARIS – Unwarranted prescriptions for proton pump inhibitors tripled the rate at which patients with atrial fibrillation needed hospitalization for a first episode of acute heart failure, in a retrospective study of 172 patients at a single center in Portugal.
About a third of the atrial fibrillation patients received a proton pump inhibitor (PPI) without a clear indication, and the PPI recipients developed heart failure at 2.9 times the rate as patients not on a PPI, a statistically significant difference, João B. Augusto, MD, reported at a meeting held by the Heart Failure Association of the European Society of Cardiology. Dr. Augusto believes that these patients largely had no need for PPI treatment, and the drug may have cut iron and vitamin B12 absorption by lowering gastric acid, resulting in deficiencies that produced anemia, and following that, heart failure, he suggested.
Iron and vitamin B12 deficiencies caused by PPI treatment provide “the best explanation” for the strong link the data showed between PPI use and new onset heart failure in this vulnerable patient population, said Dr. Augusto, a cardiologist at Fernando da Fonseca Hospital in Amadora, Portugal. The findings suggest that in practice “PPI use in patients with atrial fibrillation needs to be carefully weighed,” he said.
The study focused on 423 patients admitted to Fernando da Fonseca Hospital during January 2014–June 2015 with a primary or secondary diagnosis of atrial fibrillation. He excluded 101 patients with a history of heart failure, 109 patients on antiplatelet therapy, and 33 patients with a clear need for PPI treatment because of a gastrointestinal condition. Another 11 patients were lost to follow-up, leaving 172 patients followed for 1 year.
At the time of their initial hospitalization, 53 patients (31%) received a prescription for a PPI despite having no gastrointestinal diagnosis, likely a prophylactic step for patients receiving an oral anticoagulant, Dr. Augusto said. The patients averaged 69 years old, and nearly two-thirds were men.
During 1-year follow-up, the incidence of hospitalization for acute heart failure was 8% in the patients not on a PPI and 23% among those on a PPI, a statistically significant difference. In a regression analysis that controlled for age and chronic kidney disease, the incidence of acute heart failure was 2.9 times more common among patients on a PPI, Dr. Augusto said. He and his associates used these findings to educate their hospital’s staff to not needlessly prescribe a PPI to atrial fibrillation patients.
Dr. Augusto had no disclosures.
[email protected]
On Twitter @mitchelzoler
PARIS – Unwarranted prescriptions for proton pump inhibitors tripled the rate at which patients with atrial fibrillation needed hospitalization for a first episode of acute heart failure, in a retrospective study of 172 patients at a single center in Portugal.
About a third of the atrial fibrillation patients received a proton pump inhibitor (PPI) without a clear indication, and the PPI recipients developed heart failure at 2.9 times the rate as patients not on a PPI, a statistically significant difference, João B. Augusto, MD, reported at a meeting held by the Heart Failure Association of the European Society of Cardiology. Dr. Augusto believes that these patients largely had no need for PPI treatment, and the drug may have cut iron and vitamin B12 absorption by lowering gastric acid, resulting in deficiencies that produced anemia, and following that, heart failure, he suggested.
Iron and vitamin B12 deficiencies caused by PPI treatment provide “the best explanation” for the strong link the data showed between PPI use and new onset heart failure in this vulnerable patient population, said Dr. Augusto, a cardiologist at Fernando da Fonseca Hospital in Amadora, Portugal. The findings suggest that in practice “PPI use in patients with atrial fibrillation needs to be carefully weighed,” he said.
The study focused on 423 patients admitted to Fernando da Fonseca Hospital during January 2014–June 2015 with a primary or secondary diagnosis of atrial fibrillation. He excluded 101 patients with a history of heart failure, 109 patients on antiplatelet therapy, and 33 patients with a clear need for PPI treatment because of a gastrointestinal condition. Another 11 patients were lost to follow-up, leaving 172 patients followed for 1 year.
At the time of their initial hospitalization, 53 patients (31%) received a prescription for a PPI despite having no gastrointestinal diagnosis, likely a prophylactic step for patients receiving an oral anticoagulant, Dr. Augusto said. The patients averaged 69 years old, and nearly two-thirds were men.
During 1-year follow-up, the incidence of hospitalization for acute heart failure was 8% in the patients not on a PPI and 23% among those on a PPI, a statistically significant difference. In a regression analysis that controlled for age and chronic kidney disease, the incidence of acute heart failure was 2.9 times more common among patients on a PPI, Dr. Augusto said. He and his associates used these findings to educate their hospital’s staff to not needlessly prescribe a PPI to atrial fibrillation patients.
Dr. Augusto had no disclosures.
[email protected]
On Twitter @mitchelzoler
PARIS – Unwarranted prescriptions for proton pump inhibitors tripled the rate at which patients with atrial fibrillation needed hospitalization for a first episode of acute heart failure, in a retrospective study of 172 patients at a single center in Portugal.
About a third of the atrial fibrillation patients received a proton pump inhibitor (PPI) without a clear indication, and the PPI recipients developed heart failure at 2.9 times the rate as patients not on a PPI, a statistically significant difference, João B. Augusto, MD, reported at a meeting held by the Heart Failure Association of the European Society of Cardiology. Dr. Augusto believes that these patients largely had no need for PPI treatment, and the drug may have cut iron and vitamin B12 absorption by lowering gastric acid, resulting in deficiencies that produced anemia, and following that, heart failure, he suggested.
Iron and vitamin B12 deficiencies caused by PPI treatment provide “the best explanation” for the strong link the data showed between PPI use and new onset heart failure in this vulnerable patient population, said Dr. Augusto, a cardiologist at Fernando da Fonseca Hospital in Amadora, Portugal. The findings suggest that in practice “PPI use in patients with atrial fibrillation needs to be carefully weighed,” he said.
The study focused on 423 patients admitted to Fernando da Fonseca Hospital during January 2014–June 2015 with a primary or secondary diagnosis of atrial fibrillation. He excluded 101 patients with a history of heart failure, 109 patients on antiplatelet therapy, and 33 patients with a clear need for PPI treatment because of a gastrointestinal condition. Another 11 patients were lost to follow-up, leaving 172 patients followed for 1 year.
At the time of their initial hospitalization, 53 patients (31%) received a prescription for a PPI despite having no gastrointestinal diagnosis, likely a prophylactic step for patients receiving an oral anticoagulant, Dr. Augusto said. The patients averaged 69 years old, and nearly two-thirds were men.
During 1-year follow-up, the incidence of hospitalization for acute heart failure was 8% in the patients not on a PPI and 23% among those on a PPI, a statistically significant difference. In a regression analysis that controlled for age and chronic kidney disease, the incidence of acute heart failure was 2.9 times more common among patients on a PPI, Dr. Augusto said. He and his associates used these findings to educate their hospital’s staff to not needlessly prescribe a PPI to atrial fibrillation patients.
Dr. Augusto had no disclosures.
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: Atrial fibrillation patients had a 2.9 times higher acute heart failure rate on a proton pump inhibitor, compared with no PPI.
Data source: Retrospective review of 172 atrial fibrillation patients seen during 2014-2015 at a single center in Portugal.
Disclosures: Dr. Augusto had no disclosures.
Bromocriptine shows efficacy, safety for peripartum cardiomyopathy
PARIS – Two regimens of bromocriptine treatment administered with anticoagulation and standard heart failure management were safe, and often effective, for normalizing ejection fraction levels in women diagnosed with peripartum cardiomyopathy in a study with 63 women and designed to be the pivotal trial for this management strategy.
“Bromocriptine therapy applied for 1 week seems sufficient to promote healing from PPCM [peripartum cardiomyopathy] in most patients, although critically ill patients may profit from prolonged [8 week] treatment,” Denise Hilfiker-Kleiner, PhD, said at a meeting of the Heart Failure Association of the ESC.
“I would recommend bromocriptine for every woman” with clearly diagnosed PPCM, based on a postpartum left ventricular ejection fraction of 39% or less, Dr. Hilfiker-Kleiner said in an interview. “The 7-day protocol has now been used in many, many women, and it’s safe and effective. There is no reason not to use it. In our study, we only enrolled the most severely affected women, with an ejection fraction of less than 35%,” added Dr. Hilfiker-Kleiner, professor of molecular cardiology at the Hannover (Germany) Medical School.
Women who are suspected of having PPCM but with less compromised ventricular output, with an ejection fraction of 40%-45%, should be closely followed with repeated clinical examinations for 6 months and echocardiography examinations at 3 and 6 months to see if their cardiac output worsens enough to justify initiating a bromocriptine regimen, she advised. “We don’t recommend that every woman with an postpartum ejection fraction of 45% needs to immediately stop lactation [with bromocriptine treatment], but she should be frequently seen by a cardiologist to see whether she recovers or deteriorates further.”
Dr. Hilfiker-Kleiner and her primary clinical collaborator, Karen Sliwa, MD, developed and evaluated bromocriptine as a treatment for PPCM over several years after work by Dr. Hilfiker-Kleiner identified bromocriptine as a rational therapeutic strategy. The drug works by blocking release of prolactin from the pituitary gland. A cleaved subunit of prolactin that is produced during periods of oxidative stress causes endothelial inflammation, impaired cardiomyocyte metabolism, and the reduced cardiomyocyte contraction that is the proximate cause of PPCM. Dr. Hilfiker-Kleiner and Dr. Sliwa first tested the clinical validity of this mechanism and the efficacy of bromocriptine in a pilot, controlled clinical study with 20 women (Circulation. 2010 Apr 5;121[13]:1465-73). Their success using bromocriptine in that study led to the current trial.
The PPCM (Effect of Bromocriptine on Left Ventricular Function in Women With Peripartum Cardiomyopathy) trial enrolled 63 women with PPCM and severely depressed left ventricular ejection fraction at 12 German centers. Randomization placed 32 women into a group assigned to received 1 week of bromocriptine treatment, with 26 completing the study, and 31 in a group treated with bromocriptine for 8 weeks, with all 31 completing the study. The patients averaged 34 years of age. All patients also received standard heart failure treatment.
The study’s primary endpoint, the change in left ventricular ejection fraction from baseline to 6-month follow-up, was similar in the two treatment groups, with the 1-week regimen leading to an average 21% improvement in ejection fraction and the 8-week regimen averaging a 24% gain in pump function. Among a subgroup of 37 women who entered the study with a left ventricular ejection fraction of less than 30%, slightly more than 60% achieved full heart function by 6-month follow-up with an ejection fraction of 50% or greater, and an additional 35% had partial recovery, with a follow-up ejection fraction of 35%-49%, Dr. Hilfiker-Kleiner reported.
No women in the study developed a thrombotic complication, a potential danger of the bromocriptine intervention. All participants received antithrombotic prophylaxis with either warfarin or subcutaneous heparin. Although the bromocriptine strategy has already been adopted for routine treatment of PPCM in Germany and in many other parts of the world, its uptake in the United States has lagged, largely because of concerns about thrombotic complications, noted Dr. Sliwa, professor of medicine and director of the Hatter Institute for Cardiovascular Research in Africa at the University of Cape Town, South Africa.
Among all 57 women available for a follow-up echocardiography assessment 6 months after the start of treatment, roughly 60% had a left ventricular ejection fraction of 50% or greater, and more than 20% achieved an ejection fraction of 35%-49%. The remaining roughly 18% of women either did not have a 6-month follow-up or failed to reach at least a 35% ejection fraction at 6 months.
PPCM can be a diagnostic challenge, said Dr. Hilfiker-Kleiner, but it is relatively common, with an average worldwide incidence of about 1 case for every 1,000 deliveries. The incidence may be even higher with many cases going undetected, often because the clinical signs of PPCM, including fatigue, difficulty sleeping, edema, and dyspnea, can be dismissed as the results of recent pregnancy or caring for a newborn baby. Certain racial or ethnic groups appear to have an increased incidence of the disease, including African and Hispanic women, likely because of genetic factors, said Dr. Sliwa. Clinical factors that boost risk include pre-eclampsia, smoking, obesity, older age, and multiparity, but not diabetes.
Testing for N-terminal-pro B-type natriuretic peptide levels appears to be a good screen for women who have developed PPCM, with a level of at least 500 pg/mL high enough to warrant further assessment, Dr. Sliwa said. She recommended running an NT-proBNP test on any recent postpartum women with a clinical or demographic risk factor or suggestive clinical presentation, but she also stressed that PPCM can occur in younger, totally healthy, and athletic women who appear to have a normal delivery.
A significant concern about bromocriptine treatment is that it precludes breastfeeding, a reason not to use the drug in women with an ejection fraction of 40% or greater, especially in settings where access to safe baby formula is a challenge.
The PPCM trial enrolled 63 women at 12 German centers.
The trial received no commercial funding. Dr. Hilfiker-Kleiner and Dr. Sliwa had no disclosures.
[email protected]
On Twitter @mitchelzoler
This is a very important trial that was extremely difficult to conduct, and the results are exciting. It represents an effective bedside to bench to bedside sequence of research. The problem of peripartum cardiomyopathy was recognized in clinical practice, understood through basic research that led to a potential treatment, and the treatment is now confirmed through clinical testing. The results provide a reason for hope for the women who develop this disease.
In 2016, a panel assembled by the Heart Failure Association of the European Society of Cardiology (and which included Dr. Hilfilker-Kleiner and Dr. Sliwa) spelled out a comprehensive plan to guide the management of women with severe peripartum cardiomyopathy (Eur J Heart Failure. 2016 Sept;18[9]:1096-105). That document said that treatment with bromocriptine for severe cases “should be considered.” With these new findings we need to reconsider this guidance, and the heart failure community needs to determine whether bromocriptine should now be declared standard treatment. A real issue is finding out how much more information we need before we start using bromocriptine routinely on women who develop severe peripartum cardiomyopathy.
These trial results are important for all mothers, for all women, and for anyone born from a woman.
Mariell Jessup, MD, is a heart failure specialist and chief scientific officer of the Leducq organization in Boston. She had no disclosures. She made these comments as designated discussant for the report by Dr. Hilfiker-Kleiner.
This is a very important trial that was extremely difficult to conduct, and the results are exciting. It represents an effective bedside to bench to bedside sequence of research. The problem of peripartum cardiomyopathy was recognized in clinical practice, understood through basic research that led to a potential treatment, and the treatment is now confirmed through clinical testing. The results provide a reason for hope for the women who develop this disease.
In 2016, a panel assembled by the Heart Failure Association of the European Society of Cardiology (and which included Dr. Hilfilker-Kleiner and Dr. Sliwa) spelled out a comprehensive plan to guide the management of women with severe peripartum cardiomyopathy (Eur J Heart Failure. 2016 Sept;18[9]:1096-105). That document said that treatment with bromocriptine for severe cases “should be considered.” With these new findings we need to reconsider this guidance, and the heart failure community needs to determine whether bromocriptine should now be declared standard treatment. A real issue is finding out how much more information we need before we start using bromocriptine routinely on women who develop severe peripartum cardiomyopathy.
These trial results are important for all mothers, for all women, and for anyone born from a woman.
Mariell Jessup, MD, is a heart failure specialist and chief scientific officer of the Leducq organization in Boston. She had no disclosures. She made these comments as designated discussant for the report by Dr. Hilfiker-Kleiner.
This is a very important trial that was extremely difficult to conduct, and the results are exciting. It represents an effective bedside to bench to bedside sequence of research. The problem of peripartum cardiomyopathy was recognized in clinical practice, understood through basic research that led to a potential treatment, and the treatment is now confirmed through clinical testing. The results provide a reason for hope for the women who develop this disease.
In 2016, a panel assembled by the Heart Failure Association of the European Society of Cardiology (and which included Dr. Hilfilker-Kleiner and Dr. Sliwa) spelled out a comprehensive plan to guide the management of women with severe peripartum cardiomyopathy (Eur J Heart Failure. 2016 Sept;18[9]:1096-105). That document said that treatment with bromocriptine for severe cases “should be considered.” With these new findings we need to reconsider this guidance, and the heart failure community needs to determine whether bromocriptine should now be declared standard treatment. A real issue is finding out how much more information we need before we start using bromocriptine routinely on women who develop severe peripartum cardiomyopathy.
These trial results are important for all mothers, for all women, and for anyone born from a woman.
Mariell Jessup, MD, is a heart failure specialist and chief scientific officer of the Leducq organization in Boston. She had no disclosures. She made these comments as designated discussant for the report by Dr. Hilfiker-Kleiner.
PARIS – Two regimens of bromocriptine treatment administered with anticoagulation and standard heart failure management were safe, and often effective, for normalizing ejection fraction levels in women diagnosed with peripartum cardiomyopathy in a study with 63 women and designed to be the pivotal trial for this management strategy.
“Bromocriptine therapy applied for 1 week seems sufficient to promote healing from PPCM [peripartum cardiomyopathy] in most patients, although critically ill patients may profit from prolonged [8 week] treatment,” Denise Hilfiker-Kleiner, PhD, said at a meeting of the Heart Failure Association of the ESC.
“I would recommend bromocriptine for every woman” with clearly diagnosed PPCM, based on a postpartum left ventricular ejection fraction of 39% or less, Dr. Hilfiker-Kleiner said in an interview. “The 7-day protocol has now been used in many, many women, and it’s safe and effective. There is no reason not to use it. In our study, we only enrolled the most severely affected women, with an ejection fraction of less than 35%,” added Dr. Hilfiker-Kleiner, professor of molecular cardiology at the Hannover (Germany) Medical School.
Women who are suspected of having PPCM but with less compromised ventricular output, with an ejection fraction of 40%-45%, should be closely followed with repeated clinical examinations for 6 months and echocardiography examinations at 3 and 6 months to see if their cardiac output worsens enough to justify initiating a bromocriptine regimen, she advised. “We don’t recommend that every woman with an postpartum ejection fraction of 45% needs to immediately stop lactation [with bromocriptine treatment], but she should be frequently seen by a cardiologist to see whether she recovers or deteriorates further.”
Dr. Hilfiker-Kleiner and her primary clinical collaborator, Karen Sliwa, MD, developed and evaluated bromocriptine as a treatment for PPCM over several years after work by Dr. Hilfiker-Kleiner identified bromocriptine as a rational therapeutic strategy. The drug works by blocking release of prolactin from the pituitary gland. A cleaved subunit of prolactin that is produced during periods of oxidative stress causes endothelial inflammation, impaired cardiomyocyte metabolism, and the reduced cardiomyocyte contraction that is the proximate cause of PPCM. Dr. Hilfiker-Kleiner and Dr. Sliwa first tested the clinical validity of this mechanism and the efficacy of bromocriptine in a pilot, controlled clinical study with 20 women (Circulation. 2010 Apr 5;121[13]:1465-73). Their success using bromocriptine in that study led to the current trial.
The PPCM (Effect of Bromocriptine on Left Ventricular Function in Women With Peripartum Cardiomyopathy) trial enrolled 63 women with PPCM and severely depressed left ventricular ejection fraction at 12 German centers. Randomization placed 32 women into a group assigned to received 1 week of bromocriptine treatment, with 26 completing the study, and 31 in a group treated with bromocriptine for 8 weeks, with all 31 completing the study. The patients averaged 34 years of age. All patients also received standard heart failure treatment.
The study’s primary endpoint, the change in left ventricular ejection fraction from baseline to 6-month follow-up, was similar in the two treatment groups, with the 1-week regimen leading to an average 21% improvement in ejection fraction and the 8-week regimen averaging a 24% gain in pump function. Among a subgroup of 37 women who entered the study with a left ventricular ejection fraction of less than 30%, slightly more than 60% achieved full heart function by 6-month follow-up with an ejection fraction of 50% or greater, and an additional 35% had partial recovery, with a follow-up ejection fraction of 35%-49%, Dr. Hilfiker-Kleiner reported.
No women in the study developed a thrombotic complication, a potential danger of the bromocriptine intervention. All participants received antithrombotic prophylaxis with either warfarin or subcutaneous heparin. Although the bromocriptine strategy has already been adopted for routine treatment of PPCM in Germany and in many other parts of the world, its uptake in the United States has lagged, largely because of concerns about thrombotic complications, noted Dr. Sliwa, professor of medicine and director of the Hatter Institute for Cardiovascular Research in Africa at the University of Cape Town, South Africa.
Among all 57 women available for a follow-up echocardiography assessment 6 months after the start of treatment, roughly 60% had a left ventricular ejection fraction of 50% or greater, and more than 20% achieved an ejection fraction of 35%-49%. The remaining roughly 18% of women either did not have a 6-month follow-up or failed to reach at least a 35% ejection fraction at 6 months.
PPCM can be a diagnostic challenge, said Dr. Hilfiker-Kleiner, but it is relatively common, with an average worldwide incidence of about 1 case for every 1,000 deliveries. The incidence may be even higher with many cases going undetected, often because the clinical signs of PPCM, including fatigue, difficulty sleeping, edema, and dyspnea, can be dismissed as the results of recent pregnancy or caring for a newborn baby. Certain racial or ethnic groups appear to have an increased incidence of the disease, including African and Hispanic women, likely because of genetic factors, said Dr. Sliwa. Clinical factors that boost risk include pre-eclampsia, smoking, obesity, older age, and multiparity, but not diabetes.
Testing for N-terminal-pro B-type natriuretic peptide levels appears to be a good screen for women who have developed PPCM, with a level of at least 500 pg/mL high enough to warrant further assessment, Dr. Sliwa said. She recommended running an NT-proBNP test on any recent postpartum women with a clinical or demographic risk factor or suggestive clinical presentation, but she also stressed that PPCM can occur in younger, totally healthy, and athletic women who appear to have a normal delivery.
A significant concern about bromocriptine treatment is that it precludes breastfeeding, a reason not to use the drug in women with an ejection fraction of 40% or greater, especially in settings where access to safe baby formula is a challenge.
The PPCM trial enrolled 63 women at 12 German centers.
The trial received no commercial funding. Dr. Hilfiker-Kleiner and Dr. Sliwa had no disclosures.
[email protected]
On Twitter @mitchelzoler
PARIS – Two regimens of bromocriptine treatment administered with anticoagulation and standard heart failure management were safe, and often effective, for normalizing ejection fraction levels in women diagnosed with peripartum cardiomyopathy in a study with 63 women and designed to be the pivotal trial for this management strategy.
“Bromocriptine therapy applied for 1 week seems sufficient to promote healing from PPCM [peripartum cardiomyopathy] in most patients, although critically ill patients may profit from prolonged [8 week] treatment,” Denise Hilfiker-Kleiner, PhD, said at a meeting of the Heart Failure Association of the ESC.
“I would recommend bromocriptine for every woman” with clearly diagnosed PPCM, based on a postpartum left ventricular ejection fraction of 39% or less, Dr. Hilfiker-Kleiner said in an interview. “The 7-day protocol has now been used in many, many women, and it’s safe and effective. There is no reason not to use it. In our study, we only enrolled the most severely affected women, with an ejection fraction of less than 35%,” added Dr. Hilfiker-Kleiner, professor of molecular cardiology at the Hannover (Germany) Medical School.
Women who are suspected of having PPCM but with less compromised ventricular output, with an ejection fraction of 40%-45%, should be closely followed with repeated clinical examinations for 6 months and echocardiography examinations at 3 and 6 months to see if their cardiac output worsens enough to justify initiating a bromocriptine regimen, she advised. “We don’t recommend that every woman with an postpartum ejection fraction of 45% needs to immediately stop lactation [with bromocriptine treatment], but she should be frequently seen by a cardiologist to see whether she recovers or deteriorates further.”
Dr. Hilfiker-Kleiner and her primary clinical collaborator, Karen Sliwa, MD, developed and evaluated bromocriptine as a treatment for PPCM over several years after work by Dr. Hilfiker-Kleiner identified bromocriptine as a rational therapeutic strategy. The drug works by blocking release of prolactin from the pituitary gland. A cleaved subunit of prolactin that is produced during periods of oxidative stress causes endothelial inflammation, impaired cardiomyocyte metabolism, and the reduced cardiomyocyte contraction that is the proximate cause of PPCM. Dr. Hilfiker-Kleiner and Dr. Sliwa first tested the clinical validity of this mechanism and the efficacy of bromocriptine in a pilot, controlled clinical study with 20 women (Circulation. 2010 Apr 5;121[13]:1465-73). Their success using bromocriptine in that study led to the current trial.
The PPCM (Effect of Bromocriptine on Left Ventricular Function in Women With Peripartum Cardiomyopathy) trial enrolled 63 women with PPCM and severely depressed left ventricular ejection fraction at 12 German centers. Randomization placed 32 women into a group assigned to received 1 week of bromocriptine treatment, with 26 completing the study, and 31 in a group treated with bromocriptine for 8 weeks, with all 31 completing the study. The patients averaged 34 years of age. All patients also received standard heart failure treatment.
The study’s primary endpoint, the change in left ventricular ejection fraction from baseline to 6-month follow-up, was similar in the two treatment groups, with the 1-week regimen leading to an average 21% improvement in ejection fraction and the 8-week regimen averaging a 24% gain in pump function. Among a subgroup of 37 women who entered the study with a left ventricular ejection fraction of less than 30%, slightly more than 60% achieved full heart function by 6-month follow-up with an ejection fraction of 50% or greater, and an additional 35% had partial recovery, with a follow-up ejection fraction of 35%-49%, Dr. Hilfiker-Kleiner reported.
No women in the study developed a thrombotic complication, a potential danger of the bromocriptine intervention. All participants received antithrombotic prophylaxis with either warfarin or subcutaneous heparin. Although the bromocriptine strategy has already been adopted for routine treatment of PPCM in Germany and in many other parts of the world, its uptake in the United States has lagged, largely because of concerns about thrombotic complications, noted Dr. Sliwa, professor of medicine and director of the Hatter Institute for Cardiovascular Research in Africa at the University of Cape Town, South Africa.
Among all 57 women available for a follow-up echocardiography assessment 6 months after the start of treatment, roughly 60% had a left ventricular ejection fraction of 50% or greater, and more than 20% achieved an ejection fraction of 35%-49%. The remaining roughly 18% of women either did not have a 6-month follow-up or failed to reach at least a 35% ejection fraction at 6 months.
PPCM can be a diagnostic challenge, said Dr. Hilfiker-Kleiner, but it is relatively common, with an average worldwide incidence of about 1 case for every 1,000 deliveries. The incidence may be even higher with many cases going undetected, often because the clinical signs of PPCM, including fatigue, difficulty sleeping, edema, and dyspnea, can be dismissed as the results of recent pregnancy or caring for a newborn baby. Certain racial or ethnic groups appear to have an increased incidence of the disease, including African and Hispanic women, likely because of genetic factors, said Dr. Sliwa. Clinical factors that boost risk include pre-eclampsia, smoking, obesity, older age, and multiparity, but not diabetes.
Testing for N-terminal-pro B-type natriuretic peptide levels appears to be a good screen for women who have developed PPCM, with a level of at least 500 pg/mL high enough to warrant further assessment, Dr. Sliwa said. She recommended running an NT-proBNP test on any recent postpartum women with a clinical or demographic risk factor or suggestive clinical presentation, but she also stressed that PPCM can occur in younger, totally healthy, and athletic women who appear to have a normal delivery.
A significant concern about bromocriptine treatment is that it precludes breastfeeding, a reason not to use the drug in women with an ejection fraction of 40% or greater, especially in settings where access to safe baby formula is a challenge.
The PPCM trial enrolled 63 women at 12 German centers.
The trial received no commercial funding. Dr. Hilfiker-Kleiner and Dr. Sliwa had no disclosures.
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: At 6-month follow-up, more than 80% of patients had full or partial restoration of their left ventricular function.
Data source: The PPCM trial, which enrolled 63 women at 12 German centers.
Disclosures: The trial received no commercial funding. Dr. Hilfiker-Kleiner and Dr. Sliwa had no disclosures.
Noncardiovascular comorbidities spike in acute heart failure
PARIS – Patients hospitalized for heart failure increasingly present with a growing number of noncardiovascular comorbidities, according to registry data from more than 300 U.S. hospitals.
During the decade of 2005-2014, the percentage of patients hospitalized for heart failure diagnosed with three or more noncardiovascular comorbidities (NCCs) jumped from abut 17% of these patients in 2005 to about 28% in 2015, Abhinav Sharma, MD, said at a meeting held by the Heart Failure Association of the ESC. This increase occurred as the percentages of hospitalized heart failure patients with none or one NCC showed clear decreases.
This time trend suggests that clinicians should be on the lookout for NCCs in patients admitted for heart failure, and that “strategies to address the growing burden of noncardiovascular comorbidities may be a way to improve outcomes,” said Dr. Sharma, a cardiologist at Duke University in Durham, N.C.
U.S. patients hospitalized for heart failure “appear to now be sicker and more medically complex. Probably, a large number of the noncardiovascular comorbidities are not being recognized when the focus is on treating the patient’s heart failure,” he said in an interview. “If we can identify the noncardiovascular comorbidities and target appropriate treatment, it may potentially decrease the risk of readmissions.”
He included five NCCs in his analysis: chronic obstructive pulmonary disease, anemia, diabetes, chronic kidney disease, and obesity.
His analysis showed that a higher rate of readmissions, as well as increased mortality both in hospital and during the 30 days following discharge, are outcomes that all connect with increased numbers of NCCs. Patients with three or more NCCs at the time of their heart failure admission were about 50% more likely to die in hospital, about 65% more likely to die during the 30 days following admission, about 35% more likely to be readmitted, and about half as likely to be discharged home following hospitalization, when compared with patients with no NCC in multivariate analyses that adjusted for demographic and other clinical variables. Patients with three or more NCCs were also about 67% more likely to have an index hospitalization of at least 4 days, compared with patients with no NCC.
Dr. Sharma speculated that the increased prevalence of multiple NCCs in acute heart failure patients may result, in part, from secular trends in the rates of diabetes and obesity and the noncardiovascular comorbidities associated with these conditions. All five of the NCCs included in his analysis showed increased prevalence rates from 2005 to 2014 in the patients he studied. The biggest jump occurred in the prevalence of chronic obstructive pulmonary disease, which rose from about 27% in 2005 to about 35% in 2014.
His study used data collected in the Get With the Guidelines–Heart Failure Registry, which began in 2005, and included just under 208,000 total patients. He acknowledged that it is hard to know how representative these patients are of the entire population of U.S. patients hospitalized for heart failure during the study period, because the patients he studied came from a self-selected group of more than 300 hospitals that opted to participate in the registry. “We need to see if this can be extrapolated to all U.S. hospitals,” Dr. Sharma said.
[email protected]
On Twitter @mitchelzoler
PARIS – Patients hospitalized for heart failure increasingly present with a growing number of noncardiovascular comorbidities, according to registry data from more than 300 U.S. hospitals.
During the decade of 2005-2014, the percentage of patients hospitalized for heart failure diagnosed with three or more noncardiovascular comorbidities (NCCs) jumped from abut 17% of these patients in 2005 to about 28% in 2015, Abhinav Sharma, MD, said at a meeting held by the Heart Failure Association of the ESC. This increase occurred as the percentages of hospitalized heart failure patients with none or one NCC showed clear decreases.
This time trend suggests that clinicians should be on the lookout for NCCs in patients admitted for heart failure, and that “strategies to address the growing burden of noncardiovascular comorbidities may be a way to improve outcomes,” said Dr. Sharma, a cardiologist at Duke University in Durham, N.C.
U.S. patients hospitalized for heart failure “appear to now be sicker and more medically complex. Probably, a large number of the noncardiovascular comorbidities are not being recognized when the focus is on treating the patient’s heart failure,” he said in an interview. “If we can identify the noncardiovascular comorbidities and target appropriate treatment, it may potentially decrease the risk of readmissions.”
He included five NCCs in his analysis: chronic obstructive pulmonary disease, anemia, diabetes, chronic kidney disease, and obesity.
His analysis showed that a higher rate of readmissions, as well as increased mortality both in hospital and during the 30 days following discharge, are outcomes that all connect with increased numbers of NCCs. Patients with three or more NCCs at the time of their heart failure admission were about 50% more likely to die in hospital, about 65% more likely to die during the 30 days following admission, about 35% more likely to be readmitted, and about half as likely to be discharged home following hospitalization, when compared with patients with no NCC in multivariate analyses that adjusted for demographic and other clinical variables. Patients with three or more NCCs were also about 67% more likely to have an index hospitalization of at least 4 days, compared with patients with no NCC.
Dr. Sharma speculated that the increased prevalence of multiple NCCs in acute heart failure patients may result, in part, from secular trends in the rates of diabetes and obesity and the noncardiovascular comorbidities associated with these conditions. All five of the NCCs included in his analysis showed increased prevalence rates from 2005 to 2014 in the patients he studied. The biggest jump occurred in the prevalence of chronic obstructive pulmonary disease, which rose from about 27% in 2005 to about 35% in 2014.
His study used data collected in the Get With the Guidelines–Heart Failure Registry, which began in 2005, and included just under 208,000 total patients. He acknowledged that it is hard to know how representative these patients are of the entire population of U.S. patients hospitalized for heart failure during the study period, because the patients he studied came from a self-selected group of more than 300 hospitals that opted to participate in the registry. “We need to see if this can be extrapolated to all U.S. hospitals,” Dr. Sharma said.
[email protected]
On Twitter @mitchelzoler
PARIS – Patients hospitalized for heart failure increasingly present with a growing number of noncardiovascular comorbidities, according to registry data from more than 300 U.S. hospitals.
During the decade of 2005-2014, the percentage of patients hospitalized for heart failure diagnosed with three or more noncardiovascular comorbidities (NCCs) jumped from abut 17% of these patients in 2005 to about 28% in 2015, Abhinav Sharma, MD, said at a meeting held by the Heart Failure Association of the ESC. This increase occurred as the percentages of hospitalized heart failure patients with none or one NCC showed clear decreases.
This time trend suggests that clinicians should be on the lookout for NCCs in patients admitted for heart failure, and that “strategies to address the growing burden of noncardiovascular comorbidities may be a way to improve outcomes,” said Dr. Sharma, a cardiologist at Duke University in Durham, N.C.
U.S. patients hospitalized for heart failure “appear to now be sicker and more medically complex. Probably, a large number of the noncardiovascular comorbidities are not being recognized when the focus is on treating the patient’s heart failure,” he said in an interview. “If we can identify the noncardiovascular comorbidities and target appropriate treatment, it may potentially decrease the risk of readmissions.”
He included five NCCs in his analysis: chronic obstructive pulmonary disease, anemia, diabetes, chronic kidney disease, and obesity.
His analysis showed that a higher rate of readmissions, as well as increased mortality both in hospital and during the 30 days following discharge, are outcomes that all connect with increased numbers of NCCs. Patients with three or more NCCs at the time of their heart failure admission were about 50% more likely to die in hospital, about 65% more likely to die during the 30 days following admission, about 35% more likely to be readmitted, and about half as likely to be discharged home following hospitalization, when compared with patients with no NCC in multivariate analyses that adjusted for demographic and other clinical variables. Patients with three or more NCCs were also about 67% more likely to have an index hospitalization of at least 4 days, compared with patients with no NCC.
Dr. Sharma speculated that the increased prevalence of multiple NCCs in acute heart failure patients may result, in part, from secular trends in the rates of diabetes and obesity and the noncardiovascular comorbidities associated with these conditions. All five of the NCCs included in his analysis showed increased prevalence rates from 2005 to 2014 in the patients he studied. The biggest jump occurred in the prevalence of chronic obstructive pulmonary disease, which rose from about 27% in 2005 to about 35% in 2014.
His study used data collected in the Get With the Guidelines–Heart Failure Registry, which began in 2005, and included just under 208,000 total patients. He acknowledged that it is hard to know how representative these patients are of the entire population of U.S. patients hospitalized for heart failure during the study period, because the patients he studied came from a self-selected group of more than 300 hospitals that opted to participate in the registry. “We need to see if this can be extrapolated to all U.S. hospitals,” Dr. Sharma said.
[email protected]
On Twitter @mitchelzoler
AT HEART FAILURE 2017
Key clinical point:
Major finding: The prevalence of three or more noncardiovascular comorbidities jumped from about 17% in 2005 to about 28% in 2014.
Data source: Review of 207,984 U.S. hospitalized heart failure patients included in the Get With the Guidelines–Heart Failure Registry during 2005-2014.
Disclosures: Dr. Sharma has received research support from Roche Diagnostics and Takeda.
VIDEO: Setbacks of serelaxin, ularitide prompt rethinking acute heart failure strategies
PARIS – Serelaxin’s failure to meet its primary endpoints in an acute heart failure trial with more than 6,500 patients, coupled with a similar failure by ularitide in the same patient population in pivotal trial results first reported in November 2016, led some experts to rethink their conception of potential interventions for patients hospitalized for acute heart failure decompensations.
“We learned in TRUE-AHF that giving a drug very early [in acute heart failure] does not prevent [long-term] death. It means that early is not early enough,” Alexandre Mebazaa, MD, said in a video interview at a meeting held by the Heart Failure Association of the European Society of Cardiology.
The TRUE-AHF results with ularitide, coupled with the new report on serelaxin from RELAX-AHF-2, suggest that “the only way to improve mortality [in acute heart failure patients] is by giving the oral heart failure drugs – beta blockers, ACE inhibitors, and [mineralocorticoid receptor antagonists] – as early as possible, when patients are stable,” said Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “The best approach is probably prevention by giving patients optimal treatment” with these oral drugs at optimal dosages, he suggested.
In terms of finding new management strategies for patients who develop acute decompensations, “we need to better understand acute heart failure and the best subset of patients who might benefit” from existing or new drugs, he said.
The RELAX-AHF-2 trial enrolled and analyzed 6,545 patients hospitalized with an acute heart failure decompensation at more than 500 sites in 34 countries. The study compared the impact of a 48-hour IV infusion of serelaxin with placebo when begun within 16 hours of hospitalization for acute heart failure and added to standard treatment.
One of the study’s primary endpoints was cardiovascular mortality during the 6 months following intervention, and the rates in the two study arms were superimposable, 8.7% with serelaxin and 8.9% with placebo, Marco Metra, MD, reported at the meeting. The second primary endpoint was worsening heart failure through the first 5 days of treatment. While patients on serelaxin showed a nominal reduction, a 6.9% rate compared with a 7.7% rate in the placebo patients, the difference was not statistically significant despite the thousands of patients enrolled in the study, reported Dr. Metra, professor of cardiology at the University of Brescia, Italy.
These findings closely matched the performance of ularitide in a similar study design, TRUE-AHF (New Engl J Med. 2017 Apr 12. doi: 10.1056/NEJMoa1601895).
At the 2016 meeting of the Heart Failure Association of the ESC, the organization released revised guidelines for diagnosing and managing heart failure that stressed the importance of rapid response to acute heart failure, including possible treatment with vasodilator drugs. The guidelines acknowledged that while “Vasodilators are the second most often used agents in acute heart failure for symptomatic relief; however, there is no robust evidence confirming their beneficial effects” (Eur Heart J. 2016 Jul 14;37[27]:2129-200).
Both ularitide and serelaxin are potent IV vasodilators, and their failure to meet their efficacy endpoints in these two trials put vasodilation and rapid decongestion into question as strategies to improve midterm prognosis in heart failure patients following acute decompensation episodes.
Serelaxin has been developed by Novartis, and ularitide has been developed by Cardiorentis. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis, as well as from several other companies. Dr. Metra has been a consultant to Novartis. She has also served as consultant or spokesperson for Abbott Vascular, Amgen, AstraZeneca, Fresenius, Relypsa, and Servier.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
[email protected]
On Twitter @mitchelzoler
PARIS – Serelaxin’s failure to meet its primary endpoints in an acute heart failure trial with more than 6,500 patients, coupled with a similar failure by ularitide in the same patient population in pivotal trial results first reported in November 2016, led some experts to rethink their conception of potential interventions for patients hospitalized for acute heart failure decompensations.
“We learned in TRUE-AHF that giving a drug very early [in acute heart failure] does not prevent [long-term] death. It means that early is not early enough,” Alexandre Mebazaa, MD, said in a video interview at a meeting held by the Heart Failure Association of the European Society of Cardiology.
The TRUE-AHF results with ularitide, coupled with the new report on serelaxin from RELAX-AHF-2, suggest that “the only way to improve mortality [in acute heart failure patients] is by giving the oral heart failure drugs – beta blockers, ACE inhibitors, and [mineralocorticoid receptor antagonists] – as early as possible, when patients are stable,” said Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “The best approach is probably prevention by giving patients optimal treatment” with these oral drugs at optimal dosages, he suggested.
In terms of finding new management strategies for patients who develop acute decompensations, “we need to better understand acute heart failure and the best subset of patients who might benefit” from existing or new drugs, he said.
The RELAX-AHF-2 trial enrolled and analyzed 6,545 patients hospitalized with an acute heart failure decompensation at more than 500 sites in 34 countries. The study compared the impact of a 48-hour IV infusion of serelaxin with placebo when begun within 16 hours of hospitalization for acute heart failure and added to standard treatment.
One of the study’s primary endpoints was cardiovascular mortality during the 6 months following intervention, and the rates in the two study arms were superimposable, 8.7% with serelaxin and 8.9% with placebo, Marco Metra, MD, reported at the meeting. The second primary endpoint was worsening heart failure through the first 5 days of treatment. While patients on serelaxin showed a nominal reduction, a 6.9% rate compared with a 7.7% rate in the placebo patients, the difference was not statistically significant despite the thousands of patients enrolled in the study, reported Dr. Metra, professor of cardiology at the University of Brescia, Italy.
These findings closely matched the performance of ularitide in a similar study design, TRUE-AHF (New Engl J Med. 2017 Apr 12. doi: 10.1056/NEJMoa1601895).
At the 2016 meeting of the Heart Failure Association of the ESC, the organization released revised guidelines for diagnosing and managing heart failure that stressed the importance of rapid response to acute heart failure, including possible treatment with vasodilator drugs. The guidelines acknowledged that while “Vasodilators are the second most often used agents in acute heart failure for symptomatic relief; however, there is no robust evidence confirming their beneficial effects” (Eur Heart J. 2016 Jul 14;37[27]:2129-200).
Both ularitide and serelaxin are potent IV vasodilators, and their failure to meet their efficacy endpoints in these two trials put vasodilation and rapid decongestion into question as strategies to improve midterm prognosis in heart failure patients following acute decompensation episodes.
Serelaxin has been developed by Novartis, and ularitide has been developed by Cardiorentis. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis, as well as from several other companies. Dr. Metra has been a consultant to Novartis. She has also served as consultant or spokesperson for Abbott Vascular, Amgen, AstraZeneca, Fresenius, Relypsa, and Servier.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
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On Twitter @mitchelzoler
PARIS – Serelaxin’s failure to meet its primary endpoints in an acute heart failure trial with more than 6,500 patients, coupled with a similar failure by ularitide in the same patient population in pivotal trial results first reported in November 2016, led some experts to rethink their conception of potential interventions for patients hospitalized for acute heart failure decompensations.
“We learned in TRUE-AHF that giving a drug very early [in acute heart failure] does not prevent [long-term] death. It means that early is not early enough,” Alexandre Mebazaa, MD, said in a video interview at a meeting held by the Heart Failure Association of the European Society of Cardiology.
The TRUE-AHF results with ularitide, coupled with the new report on serelaxin from RELAX-AHF-2, suggest that “the only way to improve mortality [in acute heart failure patients] is by giving the oral heart failure drugs – beta blockers, ACE inhibitors, and [mineralocorticoid receptor antagonists] – as early as possible, when patients are stable,” said Dr. Mebazaa, a professor of anesthesiology and resuscitation at Lariboisière Hospital in Paris. “The best approach is probably prevention by giving patients optimal treatment” with these oral drugs at optimal dosages, he suggested.
In terms of finding new management strategies for patients who develop acute decompensations, “we need to better understand acute heart failure and the best subset of patients who might benefit” from existing or new drugs, he said.
The RELAX-AHF-2 trial enrolled and analyzed 6,545 patients hospitalized with an acute heart failure decompensation at more than 500 sites in 34 countries. The study compared the impact of a 48-hour IV infusion of serelaxin with placebo when begun within 16 hours of hospitalization for acute heart failure and added to standard treatment.
One of the study’s primary endpoints was cardiovascular mortality during the 6 months following intervention, and the rates in the two study arms were superimposable, 8.7% with serelaxin and 8.9% with placebo, Marco Metra, MD, reported at the meeting. The second primary endpoint was worsening heart failure through the first 5 days of treatment. While patients on serelaxin showed a nominal reduction, a 6.9% rate compared with a 7.7% rate in the placebo patients, the difference was not statistically significant despite the thousands of patients enrolled in the study, reported Dr. Metra, professor of cardiology at the University of Brescia, Italy.
These findings closely matched the performance of ularitide in a similar study design, TRUE-AHF (New Engl J Med. 2017 Apr 12. doi: 10.1056/NEJMoa1601895).
At the 2016 meeting of the Heart Failure Association of the ESC, the organization released revised guidelines for diagnosing and managing heart failure that stressed the importance of rapid response to acute heart failure, including possible treatment with vasodilator drugs. The guidelines acknowledged that while “Vasodilators are the second most often used agents in acute heart failure for symptomatic relief; however, there is no robust evidence confirming their beneficial effects” (Eur Heart J. 2016 Jul 14;37[27]:2129-200).
Both ularitide and serelaxin are potent IV vasodilators, and their failure to meet their efficacy endpoints in these two trials put vasodilation and rapid decongestion into question as strategies to improve midterm prognosis in heart failure patients following acute decompensation episodes.
Serelaxin has been developed by Novartis, and ularitide has been developed by Cardiorentis. Dr. Mebazaa has received honoraria from Novartis and Cardiorentis, as well as from several other companies. Dr. Metra has been a consultant to Novartis. She has also served as consultant or spokesperson for Abbott Vascular, Amgen, AstraZeneca, Fresenius, Relypsa, and Servier.
The video associated with this article is no longer available on this site. Please view all of our videos on the MDedge YouTube channel
[email protected]
On Twitter @mitchelzoler
EXPERT ANALYSIS FROM HEART FAILURE 2017