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Precision CAD testing shows 70% cut in composite risk at 1 year

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Benefits accrue on multiple endpoints

– A stepwise care pathway was associated with a substantial reduction in the number of invasive tests performed and a major improvement in outcomes, relative to usual management, in patients suspected of coronary artery disease (CAD), according to 1-year results of the multinational, randomized PRECISE trial.

The care pathway is appropriate for patients with nonacute chest pain or equivalent complaints that have raised suspicion of CAD, and it is extremely simple, according to the description from the principal investigator, Pamela S. Douglas, MD, given in her presentation at the annual scientific sessions of the American Heart Association.

Ted Bosworth/MDedge News
Dr. Pamela S. Douglas

Unlike the highly complex diagnostic algorithms shunting suspected CAD patients to the vast array of potential evaluations, the newly tested protocol, characterized as a “precision strategy,” divides patients into those who are immediate candidates for invasive testing and those who are not. The discriminator is the PROMISE minimal risk assessment score, a tool already validated.

Those deemed candidates for testing on the basis of an elevated score undergo computed coronary CT angiography (cCTA). In those who are not, testing is deferred.
 

Strategy is simple but effective

Although simple, this pathway is highly effective, judging by the results of the PRECISE trial, which tested the strategy in 2,103 patients at 65 sites in North America and Europe. The primary outcome was a composite of major adverse cardiovascular events (MACE) that included death, nonfatal MI, and catheterization without observed CAD.

After a median follow-up of 11.8 months, the primary MACE endpoint was reached in about 11.3% of those in the usual-care group, which was more than twofold higher than the 4.2% in the precision strategy group. The unadjusted risk reduction was 65% but rose to more than 70% (hazard ratio, 0.29; P < .001) after adjustment for gender and baseline characteristics.

In the arm randomized to the precision strategy, 16% were characterized as low risk and received no further testing. Almost all the others underwent cCTA alone (48%) or cCTA with fractional flow reserve (FFR) (31%). Stress echocardiography, treadmill electrocardiography, and other functional studies were performed in the small proportion of remaining patients.
 

cCTA performed in just 15% of usual care

In the usual-care arm, cCTA with or without FFR was only performed in 15%. More than 80% of patients underwent evaluations with one or more of an array of functional tests. For example, one-third were evaluated with single photon emission CT/PET and nearly as many underwent stress echocardiography testing. Only 7% in usual care underwent no testing after referral.

Within the MACE composite endpoint, almost all the relative benefit in the precision strategy arm was derived from the endpoint of angiography performed without evidence of obstructive CAD (2.6% vs. 10.2%). Rates of all-cause mortality and MI were not significantly different.

Important for the safety and utility of the precision strategy, there “were no deaths or MI events among those assigned deferred testing ” in that experimental arm, according to Dr. Douglas, professor of research in cardiovascular diseases at Duke University, Durham, N.C.

Instead, those in the precision strategy arm were far less likely to undergo catheterization without finding CAD (20% vs. 60%) and far less likely to undergo catheterization without revascularization (28% vs. 70%).

In addition, the group randomized to the precision strategy were more likely to be placed on risk reducing therapies following testing. Although the higher proportion of patients placed on antihypertensive therapy did not reach statistical significance (P = .1), the increased proportions placed on lipid therapy (P < .001) and antiplatelet therapy (P < .001) did.

Citing a study in JAMA Cardiology that found that more than 25% of patients presenting with stable chest pain have normal coronary arteries, Dr. Douglas said that the precision strategy as shown in the PRECISE trial addresses several agreed-upon goals in guidelines from the AHA, the European Society of Cardiology and the U.K.’s National Institute for Health and Care Excellence. These goals include reducing unnecessary testing by risk stratification, improving diagnostic yield of the testing that is performed, and avoiding the costs and complications of unneeded invasive testing.

 

 

New protocol called preferred approach

On the basis of these results, Dr. Douglas called the precision strategy “a preferred approach in evaluating patients with stable symptoms and suspected coronary disease.”

Julie Indik, MD, PhD, a professor of medicine at the University of Arizona, Tuscon, said that application of this approach in routine care could have “a major impact on care” by avoiding unnecessary tests with no apparent adverse effect on outcomes.

Although not demonstrated in this study, Dr. Indik suggested that the large number of patients tested for CAD each year – she estimated 4 million visits – means that less testing is likely to have a major impact on the costs of care, and she praised “the practical, efficient” approach of the precision strategy.

Ted Bosworth/MDedge News
Dr. Ron Blankstein

Ron Blankstein, MD, director of cardiac computed tomography, Brigham and Women’s Hospital, Boston, also said these data “have both economic and safety implications.” As an AHA-invited discussant of this study, he emphasized that this is a strategy that should only be applied to lower risk patients with no prior history of CAD, but, in this group, he believes these data “will inform future guidelines.”

Dr. Douglas declined to speculate on whether the precision strategy will be incorporated into future guidelines, but she did say that the PRECISE data demonstrate that this approach improves quality of care.

In an interview, Dr. Douglas suggested that this care pathway could provide a basis on which to demonstrate improved outcomes with more efficient use of resources, a common definition of quality care delivery.

Dr. Douglas reported financial relationships with Caption Health, Kowa, and Heartflow, which provided funding for the PRECISE trial. Dr. Indik reported no potential conflicts of interest. Dr. Blankstein reported financial relationships with Amgen, Caristo Diagnostics, and Novartis.

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Benefits accrue on multiple endpoints

Benefits accrue on multiple endpoints

– A stepwise care pathway was associated with a substantial reduction in the number of invasive tests performed and a major improvement in outcomes, relative to usual management, in patients suspected of coronary artery disease (CAD), according to 1-year results of the multinational, randomized PRECISE trial.

The care pathway is appropriate for patients with nonacute chest pain or equivalent complaints that have raised suspicion of CAD, and it is extremely simple, according to the description from the principal investigator, Pamela S. Douglas, MD, given in her presentation at the annual scientific sessions of the American Heart Association.

Ted Bosworth/MDedge News
Dr. Pamela S. Douglas

Unlike the highly complex diagnostic algorithms shunting suspected CAD patients to the vast array of potential evaluations, the newly tested protocol, characterized as a “precision strategy,” divides patients into those who are immediate candidates for invasive testing and those who are not. The discriminator is the PROMISE minimal risk assessment score, a tool already validated.

Those deemed candidates for testing on the basis of an elevated score undergo computed coronary CT angiography (cCTA). In those who are not, testing is deferred.
 

Strategy is simple but effective

Although simple, this pathway is highly effective, judging by the results of the PRECISE trial, which tested the strategy in 2,103 patients at 65 sites in North America and Europe. The primary outcome was a composite of major adverse cardiovascular events (MACE) that included death, nonfatal MI, and catheterization without observed CAD.

After a median follow-up of 11.8 months, the primary MACE endpoint was reached in about 11.3% of those in the usual-care group, which was more than twofold higher than the 4.2% in the precision strategy group. The unadjusted risk reduction was 65% but rose to more than 70% (hazard ratio, 0.29; P < .001) after adjustment for gender and baseline characteristics.

In the arm randomized to the precision strategy, 16% were characterized as low risk and received no further testing. Almost all the others underwent cCTA alone (48%) or cCTA with fractional flow reserve (FFR) (31%). Stress echocardiography, treadmill electrocardiography, and other functional studies were performed in the small proportion of remaining patients.
 

cCTA performed in just 15% of usual care

In the usual-care arm, cCTA with or without FFR was only performed in 15%. More than 80% of patients underwent evaluations with one or more of an array of functional tests. For example, one-third were evaluated with single photon emission CT/PET and nearly as many underwent stress echocardiography testing. Only 7% in usual care underwent no testing after referral.

Within the MACE composite endpoint, almost all the relative benefit in the precision strategy arm was derived from the endpoint of angiography performed without evidence of obstructive CAD (2.6% vs. 10.2%). Rates of all-cause mortality and MI were not significantly different.

Important for the safety and utility of the precision strategy, there “were no deaths or MI events among those assigned deferred testing ” in that experimental arm, according to Dr. Douglas, professor of research in cardiovascular diseases at Duke University, Durham, N.C.

Instead, those in the precision strategy arm were far less likely to undergo catheterization without finding CAD (20% vs. 60%) and far less likely to undergo catheterization without revascularization (28% vs. 70%).

In addition, the group randomized to the precision strategy were more likely to be placed on risk reducing therapies following testing. Although the higher proportion of patients placed on antihypertensive therapy did not reach statistical significance (P = .1), the increased proportions placed on lipid therapy (P < .001) and antiplatelet therapy (P < .001) did.

Citing a study in JAMA Cardiology that found that more than 25% of patients presenting with stable chest pain have normal coronary arteries, Dr. Douglas said that the precision strategy as shown in the PRECISE trial addresses several agreed-upon goals in guidelines from the AHA, the European Society of Cardiology and the U.K.’s National Institute for Health and Care Excellence. These goals include reducing unnecessary testing by risk stratification, improving diagnostic yield of the testing that is performed, and avoiding the costs and complications of unneeded invasive testing.

 

 

New protocol called preferred approach

On the basis of these results, Dr. Douglas called the precision strategy “a preferred approach in evaluating patients with stable symptoms and suspected coronary disease.”

Julie Indik, MD, PhD, a professor of medicine at the University of Arizona, Tuscon, said that application of this approach in routine care could have “a major impact on care” by avoiding unnecessary tests with no apparent adverse effect on outcomes.

Although not demonstrated in this study, Dr. Indik suggested that the large number of patients tested for CAD each year – she estimated 4 million visits – means that less testing is likely to have a major impact on the costs of care, and she praised “the practical, efficient” approach of the precision strategy.

Ted Bosworth/MDedge News
Dr. Ron Blankstein

Ron Blankstein, MD, director of cardiac computed tomography, Brigham and Women’s Hospital, Boston, also said these data “have both economic and safety implications.” As an AHA-invited discussant of this study, he emphasized that this is a strategy that should only be applied to lower risk patients with no prior history of CAD, but, in this group, he believes these data “will inform future guidelines.”

Dr. Douglas declined to speculate on whether the precision strategy will be incorporated into future guidelines, but she did say that the PRECISE data demonstrate that this approach improves quality of care.

In an interview, Dr. Douglas suggested that this care pathway could provide a basis on which to demonstrate improved outcomes with more efficient use of resources, a common definition of quality care delivery.

Dr. Douglas reported financial relationships with Caption Health, Kowa, and Heartflow, which provided funding for the PRECISE trial. Dr. Indik reported no potential conflicts of interest. Dr. Blankstein reported financial relationships with Amgen, Caristo Diagnostics, and Novartis.

– A stepwise care pathway was associated with a substantial reduction in the number of invasive tests performed and a major improvement in outcomes, relative to usual management, in patients suspected of coronary artery disease (CAD), according to 1-year results of the multinational, randomized PRECISE trial.

The care pathway is appropriate for patients with nonacute chest pain or equivalent complaints that have raised suspicion of CAD, and it is extremely simple, according to the description from the principal investigator, Pamela S. Douglas, MD, given in her presentation at the annual scientific sessions of the American Heart Association.

Ted Bosworth/MDedge News
Dr. Pamela S. Douglas

Unlike the highly complex diagnostic algorithms shunting suspected CAD patients to the vast array of potential evaluations, the newly tested protocol, characterized as a “precision strategy,” divides patients into those who are immediate candidates for invasive testing and those who are not. The discriminator is the PROMISE minimal risk assessment score, a tool already validated.

Those deemed candidates for testing on the basis of an elevated score undergo computed coronary CT angiography (cCTA). In those who are not, testing is deferred.
 

Strategy is simple but effective

Although simple, this pathway is highly effective, judging by the results of the PRECISE trial, which tested the strategy in 2,103 patients at 65 sites in North America and Europe. The primary outcome was a composite of major adverse cardiovascular events (MACE) that included death, nonfatal MI, and catheterization without observed CAD.

After a median follow-up of 11.8 months, the primary MACE endpoint was reached in about 11.3% of those in the usual-care group, which was more than twofold higher than the 4.2% in the precision strategy group. The unadjusted risk reduction was 65% but rose to more than 70% (hazard ratio, 0.29; P < .001) after adjustment for gender and baseline characteristics.

In the arm randomized to the precision strategy, 16% were characterized as low risk and received no further testing. Almost all the others underwent cCTA alone (48%) or cCTA with fractional flow reserve (FFR) (31%). Stress echocardiography, treadmill electrocardiography, and other functional studies were performed in the small proportion of remaining patients.
 

cCTA performed in just 15% of usual care

In the usual-care arm, cCTA with or without FFR was only performed in 15%. More than 80% of patients underwent evaluations with one or more of an array of functional tests. For example, one-third were evaluated with single photon emission CT/PET and nearly as many underwent stress echocardiography testing. Only 7% in usual care underwent no testing after referral.

Within the MACE composite endpoint, almost all the relative benefit in the precision strategy arm was derived from the endpoint of angiography performed without evidence of obstructive CAD (2.6% vs. 10.2%). Rates of all-cause mortality and MI were not significantly different.

Important for the safety and utility of the precision strategy, there “were no deaths or MI events among those assigned deferred testing ” in that experimental arm, according to Dr. Douglas, professor of research in cardiovascular diseases at Duke University, Durham, N.C.

Instead, those in the precision strategy arm were far less likely to undergo catheterization without finding CAD (20% vs. 60%) and far less likely to undergo catheterization without revascularization (28% vs. 70%).

In addition, the group randomized to the precision strategy were more likely to be placed on risk reducing therapies following testing. Although the higher proportion of patients placed on antihypertensive therapy did not reach statistical significance (P = .1), the increased proportions placed on lipid therapy (P < .001) and antiplatelet therapy (P < .001) did.

Citing a study in JAMA Cardiology that found that more than 25% of patients presenting with stable chest pain have normal coronary arteries, Dr. Douglas said that the precision strategy as shown in the PRECISE trial addresses several agreed-upon goals in guidelines from the AHA, the European Society of Cardiology and the U.K.’s National Institute for Health and Care Excellence. These goals include reducing unnecessary testing by risk stratification, improving diagnostic yield of the testing that is performed, and avoiding the costs and complications of unneeded invasive testing.

 

 

New protocol called preferred approach

On the basis of these results, Dr. Douglas called the precision strategy “a preferred approach in evaluating patients with stable symptoms and suspected coronary disease.”

Julie Indik, MD, PhD, a professor of medicine at the University of Arizona, Tuscon, said that application of this approach in routine care could have “a major impact on care” by avoiding unnecessary tests with no apparent adverse effect on outcomes.

Although not demonstrated in this study, Dr. Indik suggested that the large number of patients tested for CAD each year – she estimated 4 million visits – means that less testing is likely to have a major impact on the costs of care, and she praised “the practical, efficient” approach of the precision strategy.

Ted Bosworth/MDedge News
Dr. Ron Blankstein

Ron Blankstein, MD, director of cardiac computed tomography, Brigham and Women’s Hospital, Boston, also said these data “have both economic and safety implications.” As an AHA-invited discussant of this study, he emphasized that this is a strategy that should only be applied to lower risk patients with no prior history of CAD, but, in this group, he believes these data “will inform future guidelines.”

Dr. Douglas declined to speculate on whether the precision strategy will be incorporated into future guidelines, but she did say that the PRECISE data demonstrate that this approach improves quality of care.

In an interview, Dr. Douglas suggested that this care pathway could provide a basis on which to demonstrate improved outcomes with more efficient use of resources, a common definition of quality care delivery.

Dr. Douglas reported financial relationships with Caption Health, Kowa, and Heartflow, which provided funding for the PRECISE trial. Dr. Indik reported no potential conflicts of interest. Dr. Blankstein reported financial relationships with Amgen, Caristo Diagnostics, and Novartis.

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ISCHEMIA-EXTEND: Conservative stable CAD management holds up

Article Type
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Mon, 11/07/2022 - 13:27

– The case for survival equipoise between an invasive or conservative strategy for managing patients with stable coronary disease and moderate or severe cardiac ischemia grew stronger with an additional 2.5 years of median follow-up of the landmark ISCHEMIA trial.

During a median follow-up of 5.7 years in ISCHEMIA-EXTEND – and as long as 7 years – patients randomized to an upfront invasive strategy regardless of their symptoms had an all-cause mortality rate of 12.7%, compared with a 13.4% rate in the patients randomized to the conservative, medication-based management strategy that employed revascularization only when the medical approach failed to resolve their angina. This survival difference fell far short of significance (adjusted hazard ratio, 1.00; 95% confidence interval, 0.85-1.18), solidifying a finding first seen in the main ISCHEMIA results when they came out 3 years before, in late 2019, Judith S. Hochman, MD, said at the American Heart Association scientific sessions.

Mitchel L. Zoler/MDedge News
Dr. Judith S. Hochman

The new results “provide evidence for patients with chronic coronary disease and their physicians as they decide whether to add invasive management to guideline-directed medical therapy,” concluded Dr. Hochman, professor and senior associate dean for clinical sciences at New York University Langone Health. Simultaneous with her report, the extended follow-up results also appeared in an article published online in Circulation.
 

Nil probability of a survival benefit

“The probability over 5.7 years that a patient’s risk of dying is lower with the invasive strategy is nil, which means: Go with the patient’s preference. Not undergoing revascularization is a reasonable strategy because there is no excess mortality,” Dr. Hochman said in an interview. The trial’s extended follow-up provides “much more robust evidence” for the neutral effect on survival. The investigators plan to further follow-up out to a maximum of 10 years to continue to monitor for a signal of a mortality difference.

Mitchel L. Zoler/MDedge News
Dr. M. Cecilia Bahit

“These findings might help physicians in shared decision-making as to whether to add invasive management to guideline-directed medical management in selected patients with chronic coronary artery disease and moderate or severe ischemia,” commented M. Cecilia Bahit, MD, designated discussant for the report and chief of cardiology for INECO Neurosciences in Rosario, Argentina.

The original ISCHEMIA results had also shown that invasive intervention can improve the quality of life in patients who have angina as a result of their coronary disease, but also showed “minimal benefits” from an invasive approach in asymptomatic patients, who comprised 35% of the study cohort of 5,179 patients.

While ISCHEMIA enrolled patients with moderate to severe coronary ischemia identified with noninvasive testing, it excluded certain patients for whom an invasive strategy is recommended, including those with unprotected left main coronary stenoses of at least 50%, a recent acute coronary syndrome event, a left ventricular ejection fraction of less than 35%, more advanced functional limitations from heart failure, or advanced chronic kidney disease.


Follow-up without adjudication

The extended follow-up included 4,825 patients from the initial cohort, with data collected from 4,540 patients. One limitation of the follow-up was that the cause of death was not adjudicated as it had been during the initial follow-up phase. It instead relied on unconfirmed information collected either from patients’ families or national databases. The demographics and clinical profiles of the study participants available for extended follow-up closely matched the entire original study cohort.

The additional follow-up also revealed a significant survival benefit from the invasive approach for cardiovascular deaths, with an incidence of 8.6% in the conservative arm and 6.4% in the invasive group, an adjusted 22% relative reduction in this outcome favoring the invasive strategy (95% CI, 0.63-0.96). This difference had appeared as a nonsignificant signal in the initial 3.2-year median follow-up.



However, this significant benefit from the invasive strategy was counterbalanced by a surprising and inexplicable increase in deaths from noncardiovascular causes in those managed with the invasive strategy. Noncardiovascular deaths occurred in 5.5% of those in the invasive arm and in 4.4% of those in the conservative arm, a significant adjusted 44% relative increase in this outcome associated with invasive management. Again, this difference was not as clearly apparent after the initial follow-up phase.

“The increase in noncardiovascular deaths with the invasive strategy surprisingly persisted over time and offset” the cardiovascular survival benefit from upfront invasive treatment, explained Dr. Hochman. A prior report from the investigators looked in depth at the noncardiovascular deaths during the initial follow-up phase and found that most of the excess was caused by malignancies, although why this happened in the invasively treated patients remains a mystery.

 

 

Staying alive is what patients care about

“I think that interventional cardiologists who favor an invasive strategy will be excited to see this significant reduction in cardiovascular deaths, but patients don’t care what they die from. What patients care about is whether they are dead or alive,” Dr. Hochman noted.

Mitchel L. Zoler/MDedge News
Dr. B. Hadley Wilson

But B. Hadley Wilson, MD, an interventional cardiologist and vice president of the American College of Cardiology, had a somewhat different take on these findings.

“We need to consider the significant decrease in cardiovascular mortality, as we sort out the conundrum” of the increase in noncardiovascular deaths,” he said in an interview. “Hopefully, the 10-year outcomes will help answer this.”

But until more information is available, the ISCHEMIA and ISCHEMIA-EXTEND results have already helped advance the conversation that patients with stable coronary disease and their families have with clinicians about management decisions.

“I love that ISCHEMIA highlighted the importance of shared decision making and a heart team approach,” said Dr. Wilson, executive vice chair of the Sanger Heart & Vascular Institute of Atrium Health in Charlotte, N.C.
 

Anecdotally, ISCHEMIA reduced invasive management

After the initial ISCHEMIA results were published nearly 3 years ago, “I think use of invasive treatment for these patients has decreased, although I have seen no numbers” that document this, said Dr. Wilson. “I think most interventional cardiologists would say that ISCHEMIA has had an impact,” with fewer patients who match the trial’s enrollment criteria undergoing invasive management.

“Anecdotally, cardiologists are reviewing the ISCHEMIA data with their patients,” agreed Dr. Hochman, who added that no actual data have yet appeared to document this, nor do data yet document a change in the use of invasive management. “It takes time to measure the impact.”

To expedite the shared decision-making process for these patients, the ISCHEMIA researchers are planning to make available an app that will allow patients and physicians to enter clinical and demographic data and see a calculated estimate of their future cardiovascular disease risk and how amenable it may be to modification by invasive management, Dr. Hochman said. The app would be available on the ISCHEMIA study website in 2023.

ISCHEMIA and ISCHEMIA EXTEND received no commercial funding. Dr. Hochman and Dr. Wilson had no disclosures. Dr. Bahit has received honoraria from Behring, Boehringer Ingelheim, Bristol-Myers Squibb, Janssen, MSD, and Pfizer.






 

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– The case for survival equipoise between an invasive or conservative strategy for managing patients with stable coronary disease and moderate or severe cardiac ischemia grew stronger with an additional 2.5 years of median follow-up of the landmark ISCHEMIA trial.

During a median follow-up of 5.7 years in ISCHEMIA-EXTEND – and as long as 7 years – patients randomized to an upfront invasive strategy regardless of their symptoms had an all-cause mortality rate of 12.7%, compared with a 13.4% rate in the patients randomized to the conservative, medication-based management strategy that employed revascularization only when the medical approach failed to resolve their angina. This survival difference fell far short of significance (adjusted hazard ratio, 1.00; 95% confidence interval, 0.85-1.18), solidifying a finding first seen in the main ISCHEMIA results when they came out 3 years before, in late 2019, Judith S. Hochman, MD, said at the American Heart Association scientific sessions.

Mitchel L. Zoler/MDedge News
Dr. Judith S. Hochman

The new results “provide evidence for patients with chronic coronary disease and their physicians as they decide whether to add invasive management to guideline-directed medical therapy,” concluded Dr. Hochman, professor and senior associate dean for clinical sciences at New York University Langone Health. Simultaneous with her report, the extended follow-up results also appeared in an article published online in Circulation.
 

Nil probability of a survival benefit

“The probability over 5.7 years that a patient’s risk of dying is lower with the invasive strategy is nil, which means: Go with the patient’s preference. Not undergoing revascularization is a reasonable strategy because there is no excess mortality,” Dr. Hochman said in an interview. The trial’s extended follow-up provides “much more robust evidence” for the neutral effect on survival. The investigators plan to further follow-up out to a maximum of 10 years to continue to monitor for a signal of a mortality difference.

Mitchel L. Zoler/MDedge News
Dr. M. Cecilia Bahit

“These findings might help physicians in shared decision-making as to whether to add invasive management to guideline-directed medical management in selected patients with chronic coronary artery disease and moderate or severe ischemia,” commented M. Cecilia Bahit, MD, designated discussant for the report and chief of cardiology for INECO Neurosciences in Rosario, Argentina.

The original ISCHEMIA results had also shown that invasive intervention can improve the quality of life in patients who have angina as a result of their coronary disease, but also showed “minimal benefits” from an invasive approach in asymptomatic patients, who comprised 35% of the study cohort of 5,179 patients.

While ISCHEMIA enrolled patients with moderate to severe coronary ischemia identified with noninvasive testing, it excluded certain patients for whom an invasive strategy is recommended, including those with unprotected left main coronary stenoses of at least 50%, a recent acute coronary syndrome event, a left ventricular ejection fraction of less than 35%, more advanced functional limitations from heart failure, or advanced chronic kidney disease.


Follow-up without adjudication

The extended follow-up included 4,825 patients from the initial cohort, with data collected from 4,540 patients. One limitation of the follow-up was that the cause of death was not adjudicated as it had been during the initial follow-up phase. It instead relied on unconfirmed information collected either from patients’ families or national databases. The demographics and clinical profiles of the study participants available for extended follow-up closely matched the entire original study cohort.

The additional follow-up also revealed a significant survival benefit from the invasive approach for cardiovascular deaths, with an incidence of 8.6% in the conservative arm and 6.4% in the invasive group, an adjusted 22% relative reduction in this outcome favoring the invasive strategy (95% CI, 0.63-0.96). This difference had appeared as a nonsignificant signal in the initial 3.2-year median follow-up.



However, this significant benefit from the invasive strategy was counterbalanced by a surprising and inexplicable increase in deaths from noncardiovascular causes in those managed with the invasive strategy. Noncardiovascular deaths occurred in 5.5% of those in the invasive arm and in 4.4% of those in the conservative arm, a significant adjusted 44% relative increase in this outcome associated with invasive management. Again, this difference was not as clearly apparent after the initial follow-up phase.

“The increase in noncardiovascular deaths with the invasive strategy surprisingly persisted over time and offset” the cardiovascular survival benefit from upfront invasive treatment, explained Dr. Hochman. A prior report from the investigators looked in depth at the noncardiovascular deaths during the initial follow-up phase and found that most of the excess was caused by malignancies, although why this happened in the invasively treated patients remains a mystery.

 

 

Staying alive is what patients care about

“I think that interventional cardiologists who favor an invasive strategy will be excited to see this significant reduction in cardiovascular deaths, but patients don’t care what they die from. What patients care about is whether they are dead or alive,” Dr. Hochman noted.

Mitchel L. Zoler/MDedge News
Dr. B. Hadley Wilson

But B. Hadley Wilson, MD, an interventional cardiologist and vice president of the American College of Cardiology, had a somewhat different take on these findings.

“We need to consider the significant decrease in cardiovascular mortality, as we sort out the conundrum” of the increase in noncardiovascular deaths,” he said in an interview. “Hopefully, the 10-year outcomes will help answer this.”

But until more information is available, the ISCHEMIA and ISCHEMIA-EXTEND results have already helped advance the conversation that patients with stable coronary disease and their families have with clinicians about management decisions.

“I love that ISCHEMIA highlighted the importance of shared decision making and a heart team approach,” said Dr. Wilson, executive vice chair of the Sanger Heart & Vascular Institute of Atrium Health in Charlotte, N.C.
 

Anecdotally, ISCHEMIA reduced invasive management

After the initial ISCHEMIA results were published nearly 3 years ago, “I think use of invasive treatment for these patients has decreased, although I have seen no numbers” that document this, said Dr. Wilson. “I think most interventional cardiologists would say that ISCHEMIA has had an impact,” with fewer patients who match the trial’s enrollment criteria undergoing invasive management.

“Anecdotally, cardiologists are reviewing the ISCHEMIA data with their patients,” agreed Dr. Hochman, who added that no actual data have yet appeared to document this, nor do data yet document a change in the use of invasive management. “It takes time to measure the impact.”

To expedite the shared decision-making process for these patients, the ISCHEMIA researchers are planning to make available an app that will allow patients and physicians to enter clinical and demographic data and see a calculated estimate of their future cardiovascular disease risk and how amenable it may be to modification by invasive management, Dr. Hochman said. The app would be available on the ISCHEMIA study website in 2023.

ISCHEMIA and ISCHEMIA EXTEND received no commercial funding. Dr. Hochman and Dr. Wilson had no disclosures. Dr. Bahit has received honoraria from Behring, Boehringer Ingelheim, Bristol-Myers Squibb, Janssen, MSD, and Pfizer.






 

– The case for survival equipoise between an invasive or conservative strategy for managing patients with stable coronary disease and moderate or severe cardiac ischemia grew stronger with an additional 2.5 years of median follow-up of the landmark ISCHEMIA trial.

During a median follow-up of 5.7 years in ISCHEMIA-EXTEND – and as long as 7 years – patients randomized to an upfront invasive strategy regardless of their symptoms had an all-cause mortality rate of 12.7%, compared with a 13.4% rate in the patients randomized to the conservative, medication-based management strategy that employed revascularization only when the medical approach failed to resolve their angina. This survival difference fell far short of significance (adjusted hazard ratio, 1.00; 95% confidence interval, 0.85-1.18), solidifying a finding first seen in the main ISCHEMIA results when they came out 3 years before, in late 2019, Judith S. Hochman, MD, said at the American Heart Association scientific sessions.

Mitchel L. Zoler/MDedge News
Dr. Judith S. Hochman

The new results “provide evidence for patients with chronic coronary disease and their physicians as they decide whether to add invasive management to guideline-directed medical therapy,” concluded Dr. Hochman, professor and senior associate dean for clinical sciences at New York University Langone Health. Simultaneous with her report, the extended follow-up results also appeared in an article published online in Circulation.
 

Nil probability of a survival benefit

“The probability over 5.7 years that a patient’s risk of dying is lower with the invasive strategy is nil, which means: Go with the patient’s preference. Not undergoing revascularization is a reasonable strategy because there is no excess mortality,” Dr. Hochman said in an interview. The trial’s extended follow-up provides “much more robust evidence” for the neutral effect on survival. The investigators plan to further follow-up out to a maximum of 10 years to continue to monitor for a signal of a mortality difference.

Mitchel L. Zoler/MDedge News
Dr. M. Cecilia Bahit

“These findings might help physicians in shared decision-making as to whether to add invasive management to guideline-directed medical management in selected patients with chronic coronary artery disease and moderate or severe ischemia,” commented M. Cecilia Bahit, MD, designated discussant for the report and chief of cardiology for INECO Neurosciences in Rosario, Argentina.

The original ISCHEMIA results had also shown that invasive intervention can improve the quality of life in patients who have angina as a result of their coronary disease, but also showed “minimal benefits” from an invasive approach in asymptomatic patients, who comprised 35% of the study cohort of 5,179 patients.

While ISCHEMIA enrolled patients with moderate to severe coronary ischemia identified with noninvasive testing, it excluded certain patients for whom an invasive strategy is recommended, including those with unprotected left main coronary stenoses of at least 50%, a recent acute coronary syndrome event, a left ventricular ejection fraction of less than 35%, more advanced functional limitations from heart failure, or advanced chronic kidney disease.


Follow-up without adjudication

The extended follow-up included 4,825 patients from the initial cohort, with data collected from 4,540 patients. One limitation of the follow-up was that the cause of death was not adjudicated as it had been during the initial follow-up phase. It instead relied on unconfirmed information collected either from patients’ families or national databases. The demographics and clinical profiles of the study participants available for extended follow-up closely matched the entire original study cohort.

The additional follow-up also revealed a significant survival benefit from the invasive approach for cardiovascular deaths, with an incidence of 8.6% in the conservative arm and 6.4% in the invasive group, an adjusted 22% relative reduction in this outcome favoring the invasive strategy (95% CI, 0.63-0.96). This difference had appeared as a nonsignificant signal in the initial 3.2-year median follow-up.



However, this significant benefit from the invasive strategy was counterbalanced by a surprising and inexplicable increase in deaths from noncardiovascular causes in those managed with the invasive strategy. Noncardiovascular deaths occurred in 5.5% of those in the invasive arm and in 4.4% of those in the conservative arm, a significant adjusted 44% relative increase in this outcome associated with invasive management. Again, this difference was not as clearly apparent after the initial follow-up phase.

“The increase in noncardiovascular deaths with the invasive strategy surprisingly persisted over time and offset” the cardiovascular survival benefit from upfront invasive treatment, explained Dr. Hochman. A prior report from the investigators looked in depth at the noncardiovascular deaths during the initial follow-up phase and found that most of the excess was caused by malignancies, although why this happened in the invasively treated patients remains a mystery.

 

 

Staying alive is what patients care about

“I think that interventional cardiologists who favor an invasive strategy will be excited to see this significant reduction in cardiovascular deaths, but patients don’t care what they die from. What patients care about is whether they are dead or alive,” Dr. Hochman noted.

Mitchel L. Zoler/MDedge News
Dr. B. Hadley Wilson

But B. Hadley Wilson, MD, an interventional cardiologist and vice president of the American College of Cardiology, had a somewhat different take on these findings.

“We need to consider the significant decrease in cardiovascular mortality, as we sort out the conundrum” of the increase in noncardiovascular deaths,” he said in an interview. “Hopefully, the 10-year outcomes will help answer this.”

But until more information is available, the ISCHEMIA and ISCHEMIA-EXTEND results have already helped advance the conversation that patients with stable coronary disease and their families have with clinicians about management decisions.

“I love that ISCHEMIA highlighted the importance of shared decision making and a heart team approach,” said Dr. Wilson, executive vice chair of the Sanger Heart & Vascular Institute of Atrium Health in Charlotte, N.C.
 

Anecdotally, ISCHEMIA reduced invasive management

After the initial ISCHEMIA results were published nearly 3 years ago, “I think use of invasive treatment for these patients has decreased, although I have seen no numbers” that document this, said Dr. Wilson. “I think most interventional cardiologists would say that ISCHEMIA has had an impact,” with fewer patients who match the trial’s enrollment criteria undergoing invasive management.

“Anecdotally, cardiologists are reviewing the ISCHEMIA data with their patients,” agreed Dr. Hochman, who added that no actual data have yet appeared to document this, nor do data yet document a change in the use of invasive management. “It takes time to measure the impact.”

To expedite the shared decision-making process for these patients, the ISCHEMIA researchers are planning to make available an app that will allow patients and physicians to enter clinical and demographic data and see a calculated estimate of their future cardiovascular disease risk and how amenable it may be to modification by invasive management, Dr. Hochman said. The app would be available on the ISCHEMIA study website in 2023.

ISCHEMIA and ISCHEMIA EXTEND received no commercial funding. Dr. Hochman and Dr. Wilson had no disclosures. Dr. Bahit has received honoraria from Behring, Boehringer Ingelheim, Bristol-Myers Squibb, Janssen, MSD, and Pfizer.






 

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Moving the needle: SGLT2 inhibitor role for isolated kidney disease

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ORLANDO – The sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (Jardiance) significantly slowed progression of renal dysfunction or death from cardiovascular causes among patients with chronic kidney disease (CKD) who did not have diabetes or heart failure in a pivotal trial with more than 6,600 patients.

This confirms the efficacy for this population that was previously seen with dapagliflozin, another agent from the same class, in the DAPA-CKD trial.

In the new trial, EMPA-Kidney, treatment with empagliflozin 10 mg daily for a median of 2.0 years led to a significant 28% relative risk reduction in the primary combined endpoint in comparison with placebo, William G. Herrington, MD, reported at the annual meeting of the American Society of Nephrology.

The results were simultaneously published in the New England Journal of Medicine.

In 2020, a different team of researchers running DAPA-CKD reported that during a median of 2.4 years, treatment of 4,304 patients with dapagliflozin 10 mg daily resulted in a significant 39% relative risk reduction, compared with placebo for an identical combined primary endpoint. Enrollment criteria for the DAPA-CKD trial were mostly similar to that of the current trial.


‘Remarkably similar’ findings

Results from EMPA-Kidney and DAPA-CKD are “remarkably similar,” said Dr. Herrington during a press briefing at the meeting.

He also noted that when the EMPA-Kidney study began – before results from DAPA-CKD were known – “we never imagined such a large effect” on important endpoints in people with CKD.

In addition to cardiovascular death, the combined primary endpoint included the incidence of renal death, incident end-stage kidney disease, a sustained decrease in estimated glomerular filtration rate to less than 10 mL/min per 1.73m2, or a sustained decrease in eGFR of at least 40% from baseline.

Having similar evidence from both trials “will hopefully provide people with the confidence to start to use SGLT2 inhibitors as standard care in people with CKD” who match enrollment criteria of the two trials, added Dr. Herrington, a nephrologist at the University of Oxford (England).

The analyses he reported also showed that empagliflozin had similar efficacy for the primary endpoint regardless of whether patients had type 2 diabetes at the time of enrollment and regardless of their eGFR at entry.

To enter EMPA-Kidney, people needed to have either an eGFR of 20-44 mL/min per 1.73m2 with no minimum level of albuminuria or an eGFR of 45-89 mL/min per 1.73m2 with a urine albumin-to-creatinine ratio (UACR) of at least 200 mg/g.

In contrast, to enroll in DAPA-CKD, patients had to have a UACR of at least 200 mg/g. This means that for the first time, EMPA-Kidney produced data on the relationship between albuminuria severity and the impact of treatment with an SGLT2 inhibitor in the enrolled population.


A signal of greater efficacy with higher UACR

A total of 6,609 patients underwent randomization in EMPA-Kidney. During a median of 2.0 years of follow-up, the primary endpoint – progression of kidney disease or death from cardiovascular causes – occurred in 432 of 3,304 patients (13.1%) in the empagliflozin group and in 558 of 3,305 patients (16.9%) in the placebo group (hazard ratio, 0.72; P < .001).

The results “suggested that the effects [of empagliflozin] are greater in patients with higher levels of albuminuria, with statistically significant heterogeneity between this subgroup and those with a UACR of less than 200 mg/g (P = .02),” Dr. Herrington said.

Of the study population, 54% had no evidence of diabetes at enrollment.

Having data from a second large trial of an SGLT2 inhibitor that included people with isolated CKD who did not have diabetes or heart failure “will start to move the needle” on using this class of drugs in these types of patients, commented F. Perry Wilson, MD, a nephrologist at Yale University, New Haven, Conn.

On the basis of the DAPA-CKD results, in April 2021 the Food and Drug Administration expanded dapagliflozin’s indications to include CKD, yet, “a lot of nephrologists consider SGLT2 inhibitors to be agents for people with diabetes or heart failure, and they defer prescribing them to endocrinologists and cardiologists,” Dr. Wilson said in an interview.


‘Flozinators’ rising

But Pascale H. Lane, MD, a pediatric nephrologist at the University of Oklahoma Health Sciences Center, Oklahoma City, commented that many nephrologists she knows have been prescribing dapagliflozin “widely” to their patients with CKD.

“I know many adult nephrologists who use it almost universally now,” Dr. Lane said. “They call themselves ‘flozinators.’ ”

EMPA-Kidney was sponsored by Boehringer Ingelheim, the company that along with Lilly markets empagliflozin (Jardiance). Dr. Herrington, Dr. Wilson, and Dr. Lane disclosed no relevant financial relationships.

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

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ORLANDO – The sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (Jardiance) significantly slowed progression of renal dysfunction or death from cardiovascular causes among patients with chronic kidney disease (CKD) who did not have diabetes or heart failure in a pivotal trial with more than 6,600 patients.

This confirms the efficacy for this population that was previously seen with dapagliflozin, another agent from the same class, in the DAPA-CKD trial.

In the new trial, EMPA-Kidney, treatment with empagliflozin 10 mg daily for a median of 2.0 years led to a significant 28% relative risk reduction in the primary combined endpoint in comparison with placebo, William G. Herrington, MD, reported at the annual meeting of the American Society of Nephrology.

The results were simultaneously published in the New England Journal of Medicine.

In 2020, a different team of researchers running DAPA-CKD reported that during a median of 2.4 years, treatment of 4,304 patients with dapagliflozin 10 mg daily resulted in a significant 39% relative risk reduction, compared with placebo for an identical combined primary endpoint. Enrollment criteria for the DAPA-CKD trial were mostly similar to that of the current trial.


‘Remarkably similar’ findings

Results from EMPA-Kidney and DAPA-CKD are “remarkably similar,” said Dr. Herrington during a press briefing at the meeting.

He also noted that when the EMPA-Kidney study began – before results from DAPA-CKD were known – “we never imagined such a large effect” on important endpoints in people with CKD.

In addition to cardiovascular death, the combined primary endpoint included the incidence of renal death, incident end-stage kidney disease, a sustained decrease in estimated glomerular filtration rate to less than 10 mL/min per 1.73m2, or a sustained decrease in eGFR of at least 40% from baseline.

Having similar evidence from both trials “will hopefully provide people with the confidence to start to use SGLT2 inhibitors as standard care in people with CKD” who match enrollment criteria of the two trials, added Dr. Herrington, a nephrologist at the University of Oxford (England).

The analyses he reported also showed that empagliflozin had similar efficacy for the primary endpoint regardless of whether patients had type 2 diabetes at the time of enrollment and regardless of their eGFR at entry.

To enter EMPA-Kidney, people needed to have either an eGFR of 20-44 mL/min per 1.73m2 with no minimum level of albuminuria or an eGFR of 45-89 mL/min per 1.73m2 with a urine albumin-to-creatinine ratio (UACR) of at least 200 mg/g.

In contrast, to enroll in DAPA-CKD, patients had to have a UACR of at least 200 mg/g. This means that for the first time, EMPA-Kidney produced data on the relationship between albuminuria severity and the impact of treatment with an SGLT2 inhibitor in the enrolled population.


A signal of greater efficacy with higher UACR

A total of 6,609 patients underwent randomization in EMPA-Kidney. During a median of 2.0 years of follow-up, the primary endpoint – progression of kidney disease or death from cardiovascular causes – occurred in 432 of 3,304 patients (13.1%) in the empagliflozin group and in 558 of 3,305 patients (16.9%) in the placebo group (hazard ratio, 0.72; P < .001).

The results “suggested that the effects [of empagliflozin] are greater in patients with higher levels of albuminuria, with statistically significant heterogeneity between this subgroup and those with a UACR of less than 200 mg/g (P = .02),” Dr. Herrington said.

Of the study population, 54% had no evidence of diabetes at enrollment.

Having data from a second large trial of an SGLT2 inhibitor that included people with isolated CKD who did not have diabetes or heart failure “will start to move the needle” on using this class of drugs in these types of patients, commented F. Perry Wilson, MD, a nephrologist at Yale University, New Haven, Conn.

On the basis of the DAPA-CKD results, in April 2021 the Food and Drug Administration expanded dapagliflozin’s indications to include CKD, yet, “a lot of nephrologists consider SGLT2 inhibitors to be agents for people with diabetes or heart failure, and they defer prescribing them to endocrinologists and cardiologists,” Dr. Wilson said in an interview.


‘Flozinators’ rising

But Pascale H. Lane, MD, a pediatric nephrologist at the University of Oklahoma Health Sciences Center, Oklahoma City, commented that many nephrologists she knows have been prescribing dapagliflozin “widely” to their patients with CKD.

“I know many adult nephrologists who use it almost universally now,” Dr. Lane said. “They call themselves ‘flozinators.’ ”

EMPA-Kidney was sponsored by Boehringer Ingelheim, the company that along with Lilly markets empagliflozin (Jardiance). Dr. Herrington, Dr. Wilson, and Dr. Lane disclosed no relevant financial relationships.

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

ORLANDO – The sodium-glucose cotransporter 2 (SGLT2) inhibitor empagliflozin (Jardiance) significantly slowed progression of renal dysfunction or death from cardiovascular causes among patients with chronic kidney disease (CKD) who did not have diabetes or heart failure in a pivotal trial with more than 6,600 patients.

This confirms the efficacy for this population that was previously seen with dapagliflozin, another agent from the same class, in the DAPA-CKD trial.

In the new trial, EMPA-Kidney, treatment with empagliflozin 10 mg daily for a median of 2.0 years led to a significant 28% relative risk reduction in the primary combined endpoint in comparison with placebo, William G. Herrington, MD, reported at the annual meeting of the American Society of Nephrology.

The results were simultaneously published in the New England Journal of Medicine.

In 2020, a different team of researchers running DAPA-CKD reported that during a median of 2.4 years, treatment of 4,304 patients with dapagliflozin 10 mg daily resulted in a significant 39% relative risk reduction, compared with placebo for an identical combined primary endpoint. Enrollment criteria for the DAPA-CKD trial were mostly similar to that of the current trial.


‘Remarkably similar’ findings

Results from EMPA-Kidney and DAPA-CKD are “remarkably similar,” said Dr. Herrington during a press briefing at the meeting.

He also noted that when the EMPA-Kidney study began – before results from DAPA-CKD were known – “we never imagined such a large effect” on important endpoints in people with CKD.

In addition to cardiovascular death, the combined primary endpoint included the incidence of renal death, incident end-stage kidney disease, a sustained decrease in estimated glomerular filtration rate to less than 10 mL/min per 1.73m2, or a sustained decrease in eGFR of at least 40% from baseline.

Having similar evidence from both trials “will hopefully provide people with the confidence to start to use SGLT2 inhibitors as standard care in people with CKD” who match enrollment criteria of the two trials, added Dr. Herrington, a nephrologist at the University of Oxford (England).

The analyses he reported also showed that empagliflozin had similar efficacy for the primary endpoint regardless of whether patients had type 2 diabetes at the time of enrollment and regardless of their eGFR at entry.

To enter EMPA-Kidney, people needed to have either an eGFR of 20-44 mL/min per 1.73m2 with no minimum level of albuminuria or an eGFR of 45-89 mL/min per 1.73m2 with a urine albumin-to-creatinine ratio (UACR) of at least 200 mg/g.

In contrast, to enroll in DAPA-CKD, patients had to have a UACR of at least 200 mg/g. This means that for the first time, EMPA-Kidney produced data on the relationship between albuminuria severity and the impact of treatment with an SGLT2 inhibitor in the enrolled population.


A signal of greater efficacy with higher UACR

A total of 6,609 patients underwent randomization in EMPA-Kidney. During a median of 2.0 years of follow-up, the primary endpoint – progression of kidney disease or death from cardiovascular causes – occurred in 432 of 3,304 patients (13.1%) in the empagliflozin group and in 558 of 3,305 patients (16.9%) in the placebo group (hazard ratio, 0.72; P < .001).

The results “suggested that the effects [of empagliflozin] are greater in patients with higher levels of albuminuria, with statistically significant heterogeneity between this subgroup and those with a UACR of less than 200 mg/g (P = .02),” Dr. Herrington said.

Of the study population, 54% had no evidence of diabetes at enrollment.

Having data from a second large trial of an SGLT2 inhibitor that included people with isolated CKD who did not have diabetes or heart failure “will start to move the needle” on using this class of drugs in these types of patients, commented F. Perry Wilson, MD, a nephrologist at Yale University, New Haven, Conn.

On the basis of the DAPA-CKD results, in April 2021 the Food and Drug Administration expanded dapagliflozin’s indications to include CKD, yet, “a lot of nephrologists consider SGLT2 inhibitors to be agents for people with diabetes or heart failure, and they defer prescribing them to endocrinologists and cardiologists,” Dr. Wilson said in an interview.


‘Flozinators’ rising

But Pascale H. Lane, MD, a pediatric nephrologist at the University of Oklahoma Health Sciences Center, Oklahoma City, commented that many nephrologists she knows have been prescribing dapagliflozin “widely” to their patients with CKD.

“I know many adult nephrologists who use it almost universally now,” Dr. Lane said. “They call themselves ‘flozinators.’ ”

EMPA-Kidney was sponsored by Boehringer Ingelheim, the company that along with Lilly markets empagliflozin (Jardiance). Dr. Herrington, Dr. Wilson, and Dr. Lane disclosed no relevant financial relationships.

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

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In CABG, radial artery works best for second key graft: RAPCO at 15 years

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Sun, 11/06/2022 - 16:22

Lower risk of MACE shown

 

– With more than 15 years of follow-up from two related trials, the best conduit for the second most important target vessel in coronary artery bypass grafting (CABG) appears to be resolved.

The radial artery (RA) graft is linked with a lower risk of major adverse cardiac events (MACE) relative to a saphenous vein (SV) or the free right internal thoracic artery (FRITA).

On the basis of these findings, “a radial artery graft should be considered in all isolated CABG operations unless there are contraindications,” reported David L. Hare, MBBS, director of research in the department of cardiology, University of Melbourne.

For the primary graft, there is general agreement that the left internal thoracic artery (LITA) is the first choice for the left anterior descending vessel, but the optimal graft for the second most important target has never been established, according to Dr. Hare.

Almost 25 years ago, two randomized controlled trials called RAPCO-RITA and RAPCO-SV were initiated to address the question. There is now 15 years of follow-up for both of the RAPCO (Radial Artery Patency and Clinical Outcomes) trials, which were presented together at the American Heart Association scientific sessions.
 

Two trials conducted simultaneously

The RAPCO-RITA trial randomized CABG patients less than 70 years of age (less than 60 years in those with diabetes) to grafting of the second target vessel with an RA or FRITA graft. The RAPCO-SV trial randomized those 70 years or older (60 years or older with diabetes) to an RA or SV graft.

The two primary endpoints were graft patency at 10 years and a composite MACE at 10 years. The assessment of the MACE endpoint, which consisted of cardiovascular mortality, acute myocardial infarction, and coronary revascularization, was later amended to include a comparison at 15 years.

Ten-year patency results, favoring the RA in both studies, were previously published in Circulation. In the new data presented at the meeting, the RA was associated with a significant reduction in MACE relative to the comparator graft in both studies.

“The main driver was a reduction in all-cause mortality,” Dr. Hare reported.

In RAPCO-RITA, 394 patients were randomized with follow-up data available for all but 1 patient at 15 years. Similarly, only 1 patient was lost to follow-up among the 225 randomized in RAPCO-SV. In both studies, baseline characteristics were well balanced.

MACE curves separate at 5 years

In RAPCO-RITA, the MACE survival curves began to separate at about 5 years and then gradually widened. By 15 years, the lower rate of MACE in the RA group (38% vs. 48%) translated into a 26% relative reduction (hazard ratio, 0.74; P = .04).

In RAPCO-SV, the pattern was similar, by 15 years, the rates of MACE were 60% and 73% for the RA and SV groups, respectively, translating into a 29% relative reduction (HR, 0.71; P = .04).

There was no heterogeneity in benefit across prespecified subgroups such as presence or absence of diabetes, gender, or age. In RAPCO-RITA, there was 8% absolute and 31% relative reduction in all-cause mortality. In RAPCO-SV, the absolute and relative reductions were 11% and 26%.

When the trial was initiated, Dr. Hare hypothesized that RITA would prove more durable than RA, so the outcome was not anticipated.

“This is the first randomized controlled trial program to address the question,” said Dr. Hare, who noted that there have been numerous retrospective and case control analyses that have produced mixed results in the past.
 

 

 

Discussant praises trial quality

The AHA-invited discussant, Marc Ruel, MD, chair of cardiac surgery, University of Ottawa (Ont.) Heart Institute, called these data “important,” and he congratulated Dr. Hare for conducting the first randomized trial to address the question about second graft durability.

However, he noted that, although the study was randomized, it was not blinded, and he questioned whether postoperative care, in particular, was similar. He also pointed out that the MACE rate seemed high, particularly among the older patients randomized in RAPCO-SV.

“All of the patients were referred to an independently run CABG rehab program that was quite separate from the trial but that provided identical mandated care,” Dr. Hare responded, indicating that there was no opportunity for differences in postprocedural management.

In the United States, the SV graft is often preferred on the basis of easy harvesting and handling characteristics, according to Dr. Hare, who estimated that fewer than 10% of the 200,000 CABG procedures performed in the United States employ the RA conduit for second target vessels. He believes the RAPCO trials data support a change.

“My personal view is [that, on the basis of] this data, given that it is from a controlled trial rather than from patient-level meta-analyses, all isolated CABG operations should be using a radial graft if it is suitable,” Dr. Hare said.

Dr. Hare reports financial relationships with Abbott, Amgen, AstraZeneca, Bayer, Boehringer-Ingelheim, CSL-Biotherapies, Lundbeck, Menarini, Merck, Novartis, Pfizer, Regeneron, Sanofi, Servier, and Vifor. Dr. Ruel reports financial relationships with Cryolife, Edwards, and Medtronic.

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Lower risk of MACE shown

Lower risk of MACE shown

 

– With more than 15 years of follow-up from two related trials, the best conduit for the second most important target vessel in coronary artery bypass grafting (CABG) appears to be resolved.

The radial artery (RA) graft is linked with a lower risk of major adverse cardiac events (MACE) relative to a saphenous vein (SV) or the free right internal thoracic artery (FRITA).

On the basis of these findings, “a radial artery graft should be considered in all isolated CABG operations unless there are contraindications,” reported David L. Hare, MBBS, director of research in the department of cardiology, University of Melbourne.

For the primary graft, there is general agreement that the left internal thoracic artery (LITA) is the first choice for the left anterior descending vessel, but the optimal graft for the second most important target has never been established, according to Dr. Hare.

Almost 25 years ago, two randomized controlled trials called RAPCO-RITA and RAPCO-SV were initiated to address the question. There is now 15 years of follow-up for both of the RAPCO (Radial Artery Patency and Clinical Outcomes) trials, which were presented together at the American Heart Association scientific sessions.
 

Two trials conducted simultaneously

The RAPCO-RITA trial randomized CABG patients less than 70 years of age (less than 60 years in those with diabetes) to grafting of the second target vessel with an RA or FRITA graft. The RAPCO-SV trial randomized those 70 years or older (60 years or older with diabetes) to an RA or SV graft.

The two primary endpoints were graft patency at 10 years and a composite MACE at 10 years. The assessment of the MACE endpoint, which consisted of cardiovascular mortality, acute myocardial infarction, and coronary revascularization, was later amended to include a comparison at 15 years.

Ten-year patency results, favoring the RA in both studies, were previously published in Circulation. In the new data presented at the meeting, the RA was associated with a significant reduction in MACE relative to the comparator graft in both studies.

“The main driver was a reduction in all-cause mortality,” Dr. Hare reported.

In RAPCO-RITA, 394 patients were randomized with follow-up data available for all but 1 patient at 15 years. Similarly, only 1 patient was lost to follow-up among the 225 randomized in RAPCO-SV. In both studies, baseline characteristics were well balanced.

MACE curves separate at 5 years

In RAPCO-RITA, the MACE survival curves began to separate at about 5 years and then gradually widened. By 15 years, the lower rate of MACE in the RA group (38% vs. 48%) translated into a 26% relative reduction (hazard ratio, 0.74; P = .04).

In RAPCO-SV, the pattern was similar, by 15 years, the rates of MACE were 60% and 73% for the RA and SV groups, respectively, translating into a 29% relative reduction (HR, 0.71; P = .04).

There was no heterogeneity in benefit across prespecified subgroups such as presence or absence of diabetes, gender, or age. In RAPCO-RITA, there was 8% absolute and 31% relative reduction in all-cause mortality. In RAPCO-SV, the absolute and relative reductions were 11% and 26%.

When the trial was initiated, Dr. Hare hypothesized that RITA would prove more durable than RA, so the outcome was not anticipated.

“This is the first randomized controlled trial program to address the question,” said Dr. Hare, who noted that there have been numerous retrospective and case control analyses that have produced mixed results in the past.
 

 

 

Discussant praises trial quality

The AHA-invited discussant, Marc Ruel, MD, chair of cardiac surgery, University of Ottawa (Ont.) Heart Institute, called these data “important,” and he congratulated Dr. Hare for conducting the first randomized trial to address the question about second graft durability.

However, he noted that, although the study was randomized, it was not blinded, and he questioned whether postoperative care, in particular, was similar. He also pointed out that the MACE rate seemed high, particularly among the older patients randomized in RAPCO-SV.

“All of the patients were referred to an independently run CABG rehab program that was quite separate from the trial but that provided identical mandated care,” Dr. Hare responded, indicating that there was no opportunity for differences in postprocedural management.

In the United States, the SV graft is often preferred on the basis of easy harvesting and handling characteristics, according to Dr. Hare, who estimated that fewer than 10% of the 200,000 CABG procedures performed in the United States employ the RA conduit for second target vessels. He believes the RAPCO trials data support a change.

“My personal view is [that, on the basis of] this data, given that it is from a controlled trial rather than from patient-level meta-analyses, all isolated CABG operations should be using a radial graft if it is suitable,” Dr. Hare said.

Dr. Hare reports financial relationships with Abbott, Amgen, AstraZeneca, Bayer, Boehringer-Ingelheim, CSL-Biotherapies, Lundbeck, Menarini, Merck, Novartis, Pfizer, Regeneron, Sanofi, Servier, and Vifor. Dr. Ruel reports financial relationships with Cryolife, Edwards, and Medtronic.

 

– With more than 15 years of follow-up from two related trials, the best conduit for the second most important target vessel in coronary artery bypass grafting (CABG) appears to be resolved.

The radial artery (RA) graft is linked with a lower risk of major adverse cardiac events (MACE) relative to a saphenous vein (SV) or the free right internal thoracic artery (FRITA).

On the basis of these findings, “a radial artery graft should be considered in all isolated CABG operations unless there are contraindications,” reported David L. Hare, MBBS, director of research in the department of cardiology, University of Melbourne.

For the primary graft, there is general agreement that the left internal thoracic artery (LITA) is the first choice for the left anterior descending vessel, but the optimal graft for the second most important target has never been established, according to Dr. Hare.

Almost 25 years ago, two randomized controlled trials called RAPCO-RITA and RAPCO-SV were initiated to address the question. There is now 15 years of follow-up for both of the RAPCO (Radial Artery Patency and Clinical Outcomes) trials, which were presented together at the American Heart Association scientific sessions.
 

Two trials conducted simultaneously

The RAPCO-RITA trial randomized CABG patients less than 70 years of age (less than 60 years in those with diabetes) to grafting of the second target vessel with an RA or FRITA graft. The RAPCO-SV trial randomized those 70 years or older (60 years or older with diabetes) to an RA or SV graft.

The two primary endpoints were graft patency at 10 years and a composite MACE at 10 years. The assessment of the MACE endpoint, which consisted of cardiovascular mortality, acute myocardial infarction, and coronary revascularization, was later amended to include a comparison at 15 years.

Ten-year patency results, favoring the RA in both studies, were previously published in Circulation. In the new data presented at the meeting, the RA was associated with a significant reduction in MACE relative to the comparator graft in both studies.

“The main driver was a reduction in all-cause mortality,” Dr. Hare reported.

In RAPCO-RITA, 394 patients were randomized with follow-up data available for all but 1 patient at 15 years. Similarly, only 1 patient was lost to follow-up among the 225 randomized in RAPCO-SV. In both studies, baseline characteristics were well balanced.

MACE curves separate at 5 years

In RAPCO-RITA, the MACE survival curves began to separate at about 5 years and then gradually widened. By 15 years, the lower rate of MACE in the RA group (38% vs. 48%) translated into a 26% relative reduction (hazard ratio, 0.74; P = .04).

In RAPCO-SV, the pattern was similar, by 15 years, the rates of MACE were 60% and 73% for the RA and SV groups, respectively, translating into a 29% relative reduction (HR, 0.71; P = .04).

There was no heterogeneity in benefit across prespecified subgroups such as presence or absence of diabetes, gender, or age. In RAPCO-RITA, there was 8% absolute and 31% relative reduction in all-cause mortality. In RAPCO-SV, the absolute and relative reductions were 11% and 26%.

When the trial was initiated, Dr. Hare hypothesized that RITA would prove more durable than RA, so the outcome was not anticipated.

“This is the first randomized controlled trial program to address the question,” said Dr. Hare, who noted that there have been numerous retrospective and case control analyses that have produced mixed results in the past.
 

 

 

Discussant praises trial quality

The AHA-invited discussant, Marc Ruel, MD, chair of cardiac surgery, University of Ottawa (Ont.) Heart Institute, called these data “important,” and he congratulated Dr. Hare for conducting the first randomized trial to address the question about second graft durability.

However, he noted that, although the study was randomized, it was not blinded, and he questioned whether postoperative care, in particular, was similar. He also pointed out that the MACE rate seemed high, particularly among the older patients randomized in RAPCO-SV.

“All of the patients were referred to an independently run CABG rehab program that was quite separate from the trial but that provided identical mandated care,” Dr. Hare responded, indicating that there was no opportunity for differences in postprocedural management.

In the United States, the SV graft is often preferred on the basis of easy harvesting and handling characteristics, according to Dr. Hare, who estimated that fewer than 10% of the 200,000 CABG procedures performed in the United States employ the RA conduit for second target vessels. He believes the RAPCO trials data support a change.

“My personal view is [that, on the basis of] this data, given that it is from a controlled trial rather than from patient-level meta-analyses, all isolated CABG operations should be using a radial graft if it is suitable,” Dr. Hare said.

Dr. Hare reports financial relationships with Abbott, Amgen, AstraZeneca, Bayer, Boehringer-Ingelheim, CSL-Biotherapies, Lundbeck, Menarini, Merck, Novartis, Pfizer, Regeneron, Sanofi, Servier, and Vifor. Dr. Ruel reports financial relationships with Cryolife, Edwards, and Medtronic.

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Diuretic agents equal to prevent CV events in hypertension: DCP

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Mon, 11/07/2022 - 13:41

 

There was no difference in major cardiovascular outcomes with the use of two different diuretics – chlorthalidone or hydrochlorothiazide – in the treatment of hypertension in a new large randomized real-world study.

The Diuretic Comparison Project (DCP), which was conducted in more than 13,500 U.S. veterans age 65 years or over, showed almost identical rates of the primary composite endpoint, including myocardial infarction (MI), stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization, after a median of 2.4 years of follow-up.

There was no difference in any of the individual endpoints or other secondary cardiovascular outcomes.

However, in the subgroup of patients who had a history of MI or stroke (who made up about 10% of the study population), there was a significant reduction in the primary endpoint with chlorthalidone, whereas those without a history of MI or stroke appeared to have an increased risk for primary outcome events while receiving chlorthalidone compared with those receiving hydrochlorothiazide.

The DCP trial was presented at the American Heart Association scientific sessions by Areef Ishani, MD, director of the Minneapolis Primary Care and Specialty Care Integrated Care Community and director of the Veterans Affairs (VA) Midwest Health Care Network.

Asked how to interpret the result for clinical practice, Dr. Ishani said, “I think we can now say that either of these two drugs is appropriate to use for the treatment of hypertension.”

But he added that the decision on what to do with the subgroup of patients with previous MI or stroke was more “challenging.”

“We saw a highly significant benefit in this subgroup, but this was in the context of an overall negative trial,” he noted. “I think this is a discussion with the patients on how they want to hedge their bets. Because these two drugs are so similar, if they wanted to take one or the other because of this subgroup result I think that is a conversation to have, but I think we now need to conduct another trial specifically in this subgroup of patients to see if chlorthalidone really is of benefit in that group.”

Dr. Ishani explained that both chlorthalidone and hydrochlorothiazide have been around for more than 50 years and are considered first-line treatments for hypertension. Early studies suggested better cardiovascular outcomes and 24-hour blood pressure control with chlorthalidone, but recent observational studies have not shown more benefit with chlorthalidone. These studies have suggested that chlorthalidone may be associated with an increase in adverse events, such as hypokalemia, acute kidney injury, and chronic kidney disease.
 

Pragmatic study

The DCP trial was conducted to try to definitively answer this question of whether chlorthalidone is superior to hydrochlorothiazide. The pragmatic study had a “point-of-care” design that allowed participants and health care professionals to know which medication was being prescribed and to administer the medication in a real-world setting.

“Patients can continue with their normal care with their usual care team because we integrated this trial into primary care clinics,” Dr. Ishani said. “We followed participant results using their electronic health record. This study was nonintrusive, cost-effective, and inexpensive. Plus, we were able to recruit a large rural population, which is unusual for large, randomized trials, where we usually rely on big academic medical centers.”

Using VA electronic medical records, the investigators recruited primary care physicians who identified patients older than age 65 years who were receiving hydrochlorothiazide (25 mg or 50 mg) for hypertension. These patients (97% of whom were male) were then randomly assigned to continue receiving hydrochlorothiazide or to switch to an equivalent dose of chlorthalidone. Patients were followed through the electronic medical record as well as Medicare claims and the National Death Index.

Results after a median follow-up of 2.4 years showed no difference in blood pressure control between the two groups.

In terms of clinical events, the primary composite outcome of MI, stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization occurred in 10.4% of the chlorthalidone group and in 10.0% of the hydrochlorothiazide group (hazard ratio [HR], 1.04; 95% confidence interval [CI], 0.94-1.16; P = .4).

There was no difference in any individual components of the primary endpoint or the secondary outcomes of all-cause mortality, any revascularization, or erectile dysfunction.

In terms of adverse events, chlorthalidone was associated with an increase in hypokalemia (6% vs. 4.4%; HR, 1.38), but there was no difference in hospitalization for acute kidney injury.
 

 

 

Benefit in MI, stroke subgroup?

In the subgroup analysis, patients with a history of MI or stroke who were receiving chlorthalidone had a significant 27% reduction in the primary endpoint (HR, 0.73; 95% CI, 0.57-0.94). Conversely, patients without a history of MI or stroke appeared to do worse while taking chlorthalidone (HR, 1.12; 95% CI, 1.00-1.26).

“We were surprised by these results,” Dr. Ishani said. “We expected chlorthalidone to be more effective overall. However, learning about these differences in patients who have a history of cardiovascular disease may affect patient care. It’s best for people to talk with their health care clinicians about which of these medications is better for their individual needs.”

He added: “More research is needed to explore these results further because we don’t know how they may fit into treating the general population.”

Dr. Ishani noted that a limitations of this study was that most patients were receiving the low dose of chlorthalidone, and previous studies that suggested benefits with chlorthalidone used the higher dose.

“But the world has voted – we had 4,000 clinicians involved in this study, and the vast majority are using the low dose of hydrochlorothiazide. And this is a definitively negative study,” he said. “The world has also voted in that 10 times more patients were on hydrochlorothiazide than on chlorthalidone.”

Commenting on the study at an AHA press conference, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, pointed out that in all of the landmark National Institutes of Health hypertension trials, there was a signal for benefit with chlorthalidone compared with other antihypertensives.

Catherine Hackett/MDedge News
Dr. Biykem Bozkurt

“We’ve always had this concept that chlorthalidone is better,” she said. “But this study shows no difference in major cardiovascular endpoints. There was more hypokalemia with chlorthalidone, but that’s recognizable as chlorthalidone is a more potent diuretic.”

Other limitations of the DCP trial are its open-label design, which could interject some bias; the enduring effects of hydrochlorothiazide – most of these patients were receiving this agent as background therapy; and inability to look at the effectiveness of decongestion of the agents in such a pragmatic study, Dr. Bozkurt noted.

She said she would like to see more analysis in the subgroup of patients with previous MI or stroke. “Does this result mean that chlorthalidone is better for sicker patients or is this result just due to chance?” she asked.

“While this study demonstrates equal effectiveness of these two diuretics in the targeted population, the question of subgroups of patients for which we use a more potent diuretic I think remains unanswered,” she concluded.

Designated discussant of the DCP trial at the late-breaking trial session, Daniel Levy, MD, director of the Framingham Heart Study at the National Heart, Lung, and Blood Institute, reminded attendees that chlorthalidone had shown impressive results in previous important hypertension studies including SHEP and ALLHAT.

He said the current DCP was a pragmatic study addressing a knowledge gap that “would never have been performed by industry.”

Dr. Levy concluded that the results showing no difference in outcomes between the two diuretics were “compelling,” although a few questions remain.

These include a possible bias toward hydrochlorothiazide – patients were selected who were already taking that drug and so would have already had a favorable response to it. In addition, because the trial was conducted in an older male population, he questioned whether the results could be generalized to women and younger patients.

The DCP study was funded by the VA Cooperative Studies Program. Dr. Ishani reported no disclosures.

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

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There was no difference in major cardiovascular outcomes with the use of two different diuretics – chlorthalidone or hydrochlorothiazide – in the treatment of hypertension in a new large randomized real-world study.

The Diuretic Comparison Project (DCP), which was conducted in more than 13,500 U.S. veterans age 65 years or over, showed almost identical rates of the primary composite endpoint, including myocardial infarction (MI), stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization, after a median of 2.4 years of follow-up.

There was no difference in any of the individual endpoints or other secondary cardiovascular outcomes.

However, in the subgroup of patients who had a history of MI or stroke (who made up about 10% of the study population), there was a significant reduction in the primary endpoint with chlorthalidone, whereas those without a history of MI or stroke appeared to have an increased risk for primary outcome events while receiving chlorthalidone compared with those receiving hydrochlorothiazide.

The DCP trial was presented at the American Heart Association scientific sessions by Areef Ishani, MD, director of the Minneapolis Primary Care and Specialty Care Integrated Care Community and director of the Veterans Affairs (VA) Midwest Health Care Network.

Asked how to interpret the result for clinical practice, Dr. Ishani said, “I think we can now say that either of these two drugs is appropriate to use for the treatment of hypertension.”

But he added that the decision on what to do with the subgroup of patients with previous MI or stroke was more “challenging.”

“We saw a highly significant benefit in this subgroup, but this was in the context of an overall negative trial,” he noted. “I think this is a discussion with the patients on how they want to hedge their bets. Because these two drugs are so similar, if they wanted to take one or the other because of this subgroup result I think that is a conversation to have, but I think we now need to conduct another trial specifically in this subgroup of patients to see if chlorthalidone really is of benefit in that group.”

Dr. Ishani explained that both chlorthalidone and hydrochlorothiazide have been around for more than 50 years and are considered first-line treatments for hypertension. Early studies suggested better cardiovascular outcomes and 24-hour blood pressure control with chlorthalidone, but recent observational studies have not shown more benefit with chlorthalidone. These studies have suggested that chlorthalidone may be associated with an increase in adverse events, such as hypokalemia, acute kidney injury, and chronic kidney disease.
 

Pragmatic study

The DCP trial was conducted to try to definitively answer this question of whether chlorthalidone is superior to hydrochlorothiazide. The pragmatic study had a “point-of-care” design that allowed participants and health care professionals to know which medication was being prescribed and to administer the medication in a real-world setting.

“Patients can continue with their normal care with their usual care team because we integrated this trial into primary care clinics,” Dr. Ishani said. “We followed participant results using their electronic health record. This study was nonintrusive, cost-effective, and inexpensive. Plus, we were able to recruit a large rural population, which is unusual for large, randomized trials, where we usually rely on big academic medical centers.”

Using VA electronic medical records, the investigators recruited primary care physicians who identified patients older than age 65 years who were receiving hydrochlorothiazide (25 mg or 50 mg) for hypertension. These patients (97% of whom were male) were then randomly assigned to continue receiving hydrochlorothiazide or to switch to an equivalent dose of chlorthalidone. Patients were followed through the electronic medical record as well as Medicare claims and the National Death Index.

Results after a median follow-up of 2.4 years showed no difference in blood pressure control between the two groups.

In terms of clinical events, the primary composite outcome of MI, stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization occurred in 10.4% of the chlorthalidone group and in 10.0% of the hydrochlorothiazide group (hazard ratio [HR], 1.04; 95% confidence interval [CI], 0.94-1.16; P = .4).

There was no difference in any individual components of the primary endpoint or the secondary outcomes of all-cause mortality, any revascularization, or erectile dysfunction.

In terms of adverse events, chlorthalidone was associated with an increase in hypokalemia (6% vs. 4.4%; HR, 1.38), but there was no difference in hospitalization for acute kidney injury.
 

 

 

Benefit in MI, stroke subgroup?

In the subgroup analysis, patients with a history of MI or stroke who were receiving chlorthalidone had a significant 27% reduction in the primary endpoint (HR, 0.73; 95% CI, 0.57-0.94). Conversely, patients without a history of MI or stroke appeared to do worse while taking chlorthalidone (HR, 1.12; 95% CI, 1.00-1.26).

“We were surprised by these results,” Dr. Ishani said. “We expected chlorthalidone to be more effective overall. However, learning about these differences in patients who have a history of cardiovascular disease may affect patient care. It’s best for people to talk with their health care clinicians about which of these medications is better for their individual needs.”

He added: “More research is needed to explore these results further because we don’t know how they may fit into treating the general population.”

Dr. Ishani noted that a limitations of this study was that most patients were receiving the low dose of chlorthalidone, and previous studies that suggested benefits with chlorthalidone used the higher dose.

“But the world has voted – we had 4,000 clinicians involved in this study, and the vast majority are using the low dose of hydrochlorothiazide. And this is a definitively negative study,” he said. “The world has also voted in that 10 times more patients were on hydrochlorothiazide than on chlorthalidone.”

Commenting on the study at an AHA press conference, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, pointed out that in all of the landmark National Institutes of Health hypertension trials, there was a signal for benefit with chlorthalidone compared with other antihypertensives.

Catherine Hackett/MDedge News
Dr. Biykem Bozkurt

“We’ve always had this concept that chlorthalidone is better,” she said. “But this study shows no difference in major cardiovascular endpoints. There was more hypokalemia with chlorthalidone, but that’s recognizable as chlorthalidone is a more potent diuretic.”

Other limitations of the DCP trial are its open-label design, which could interject some bias; the enduring effects of hydrochlorothiazide – most of these patients were receiving this agent as background therapy; and inability to look at the effectiveness of decongestion of the agents in such a pragmatic study, Dr. Bozkurt noted.

She said she would like to see more analysis in the subgroup of patients with previous MI or stroke. “Does this result mean that chlorthalidone is better for sicker patients or is this result just due to chance?” she asked.

“While this study demonstrates equal effectiveness of these two diuretics in the targeted population, the question of subgroups of patients for which we use a more potent diuretic I think remains unanswered,” she concluded.

Designated discussant of the DCP trial at the late-breaking trial session, Daniel Levy, MD, director of the Framingham Heart Study at the National Heart, Lung, and Blood Institute, reminded attendees that chlorthalidone had shown impressive results in previous important hypertension studies including SHEP and ALLHAT.

He said the current DCP was a pragmatic study addressing a knowledge gap that “would never have been performed by industry.”

Dr. Levy concluded that the results showing no difference in outcomes between the two diuretics were “compelling,” although a few questions remain.

These include a possible bias toward hydrochlorothiazide – patients were selected who were already taking that drug and so would have already had a favorable response to it. In addition, because the trial was conducted in an older male population, he questioned whether the results could be generalized to women and younger patients.

The DCP study was funded by the VA Cooperative Studies Program. Dr. Ishani reported no disclosures.

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

 

There was no difference in major cardiovascular outcomes with the use of two different diuretics – chlorthalidone or hydrochlorothiazide – in the treatment of hypertension in a new large randomized real-world study.

The Diuretic Comparison Project (DCP), which was conducted in more than 13,500 U.S. veterans age 65 years or over, showed almost identical rates of the primary composite endpoint, including myocardial infarction (MI), stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization, after a median of 2.4 years of follow-up.

There was no difference in any of the individual endpoints or other secondary cardiovascular outcomes.

However, in the subgroup of patients who had a history of MI or stroke (who made up about 10% of the study population), there was a significant reduction in the primary endpoint with chlorthalidone, whereas those without a history of MI or stroke appeared to have an increased risk for primary outcome events while receiving chlorthalidone compared with those receiving hydrochlorothiazide.

The DCP trial was presented at the American Heart Association scientific sessions by Areef Ishani, MD, director of the Minneapolis Primary Care and Specialty Care Integrated Care Community and director of the Veterans Affairs (VA) Midwest Health Care Network.

Asked how to interpret the result for clinical practice, Dr. Ishani said, “I think we can now say that either of these two drugs is appropriate to use for the treatment of hypertension.”

But he added that the decision on what to do with the subgroup of patients with previous MI or stroke was more “challenging.”

“We saw a highly significant benefit in this subgroup, but this was in the context of an overall negative trial,” he noted. “I think this is a discussion with the patients on how they want to hedge their bets. Because these two drugs are so similar, if they wanted to take one or the other because of this subgroup result I think that is a conversation to have, but I think we now need to conduct another trial specifically in this subgroup of patients to see if chlorthalidone really is of benefit in that group.”

Dr. Ishani explained that both chlorthalidone and hydrochlorothiazide have been around for more than 50 years and are considered first-line treatments for hypertension. Early studies suggested better cardiovascular outcomes and 24-hour blood pressure control with chlorthalidone, but recent observational studies have not shown more benefit with chlorthalidone. These studies have suggested that chlorthalidone may be associated with an increase in adverse events, such as hypokalemia, acute kidney injury, and chronic kidney disease.
 

Pragmatic study

The DCP trial was conducted to try to definitively answer this question of whether chlorthalidone is superior to hydrochlorothiazide. The pragmatic study had a “point-of-care” design that allowed participants and health care professionals to know which medication was being prescribed and to administer the medication in a real-world setting.

“Patients can continue with their normal care with their usual care team because we integrated this trial into primary care clinics,” Dr. Ishani said. “We followed participant results using their electronic health record. This study was nonintrusive, cost-effective, and inexpensive. Plus, we were able to recruit a large rural population, which is unusual for large, randomized trials, where we usually rely on big academic medical centers.”

Using VA electronic medical records, the investigators recruited primary care physicians who identified patients older than age 65 years who were receiving hydrochlorothiazide (25 mg or 50 mg) for hypertension. These patients (97% of whom were male) were then randomly assigned to continue receiving hydrochlorothiazide or to switch to an equivalent dose of chlorthalidone. Patients were followed through the electronic medical record as well as Medicare claims and the National Death Index.

Results after a median follow-up of 2.4 years showed no difference in blood pressure control between the two groups.

In terms of clinical events, the primary composite outcome of MI, stroke, noncancer death, hospitalization for acute heart failure, or urgent revascularization occurred in 10.4% of the chlorthalidone group and in 10.0% of the hydrochlorothiazide group (hazard ratio [HR], 1.04; 95% confidence interval [CI], 0.94-1.16; P = .4).

There was no difference in any individual components of the primary endpoint or the secondary outcomes of all-cause mortality, any revascularization, or erectile dysfunction.

In terms of adverse events, chlorthalidone was associated with an increase in hypokalemia (6% vs. 4.4%; HR, 1.38), but there was no difference in hospitalization for acute kidney injury.
 

 

 

Benefit in MI, stroke subgroup?

In the subgroup analysis, patients with a history of MI or stroke who were receiving chlorthalidone had a significant 27% reduction in the primary endpoint (HR, 0.73; 95% CI, 0.57-0.94). Conversely, patients without a history of MI or stroke appeared to do worse while taking chlorthalidone (HR, 1.12; 95% CI, 1.00-1.26).

“We were surprised by these results,” Dr. Ishani said. “We expected chlorthalidone to be more effective overall. However, learning about these differences in patients who have a history of cardiovascular disease may affect patient care. It’s best for people to talk with their health care clinicians about which of these medications is better for their individual needs.”

He added: “More research is needed to explore these results further because we don’t know how they may fit into treating the general population.”

Dr. Ishani noted that a limitations of this study was that most patients were receiving the low dose of chlorthalidone, and previous studies that suggested benefits with chlorthalidone used the higher dose.

“But the world has voted – we had 4,000 clinicians involved in this study, and the vast majority are using the low dose of hydrochlorothiazide. And this is a definitively negative study,” he said. “The world has also voted in that 10 times more patients were on hydrochlorothiazide than on chlorthalidone.”

Commenting on the study at an AHA press conference, Biykem Bozkurt, MD, PhD, Baylor College of Medicine, Houston, pointed out that in all of the landmark National Institutes of Health hypertension trials, there was a signal for benefit with chlorthalidone compared with other antihypertensives.

Catherine Hackett/MDedge News
Dr. Biykem Bozkurt

“We’ve always had this concept that chlorthalidone is better,” she said. “But this study shows no difference in major cardiovascular endpoints. There was more hypokalemia with chlorthalidone, but that’s recognizable as chlorthalidone is a more potent diuretic.”

Other limitations of the DCP trial are its open-label design, which could interject some bias; the enduring effects of hydrochlorothiazide – most of these patients were receiving this agent as background therapy; and inability to look at the effectiveness of decongestion of the agents in such a pragmatic study, Dr. Bozkurt noted.

She said she would like to see more analysis in the subgroup of patients with previous MI or stroke. “Does this result mean that chlorthalidone is better for sicker patients or is this result just due to chance?” she asked.

“While this study demonstrates equal effectiveness of these two diuretics in the targeted population, the question of subgroups of patients for which we use a more potent diuretic I think remains unanswered,” she concluded.

Designated discussant of the DCP trial at the late-breaking trial session, Daniel Levy, MD, director of the Framingham Heart Study at the National Heart, Lung, and Blood Institute, reminded attendees that chlorthalidone had shown impressive results in previous important hypertension studies including SHEP and ALLHAT.

He said the current DCP was a pragmatic study addressing a knowledge gap that “would never have been performed by industry.”

Dr. Levy concluded that the results showing no difference in outcomes between the two diuretics were “compelling,” although a few questions remain.

These include a possible bias toward hydrochlorothiazide – patients were selected who were already taking that drug and so would have already had a favorable response to it. In addition, because the trial was conducted in an older male population, he questioned whether the results could be generalized to women and younger patients.

The DCP study was funded by the VA Cooperative Studies Program. Dr. Ishani reported no disclosures.

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

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Triglyceride-lowering fails to show CV benefit in large fibrate trial

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Mon, 11/07/2022 - 08:02

Twenty-five percent reduction has no effect

 

– Despite a 25% reduction in triglycerides (TGs) along with similar reductions in very-low-density lipoprotein (VLDL), and remnant cholesterol, a novel agent failed to provide any protection in a multinational trial against a composite endpoint of major adverse cardiovascular events (MACE) in patients with type 2 diabetes.

“Our data further highlight the complexity of lipid mediators of residual risk among patients with insulin resistance who are receiving statin therapy,” reported Aruna Das Pradhan, MD, of Harvard Medical School, Boston, and Queen Mary University, London.

Ted Bosworth/MDedge News
Dr. Aruna Das Pradhan
The trial, called PROMINENT, was presented at the American Heart Association scientific sessions.

It is the most recent in a series of trials that have failed to associate a meaningful reduction in TGs with protection from a composite MACE endpoint. This is a pattern that dates back 20 years, even though earlier trials did suggest that hypertriglyceridemia was a targetable risk factor.
 

No benefit from fibrates seen in statin era

“We have not seen a significant cardiovascular event reduction with a fibrate in the statin era,” according to Karol Watson, MD, PhD, director of the UCLA Women’s Cardiovascular Health Center, Los Angeles.

Ted Bosworth/MDedge News
Dr. Karol Watson
Prior to the availability of statin therapy, there was evidence of benefit from TG lowering. In the Helsinki Heart Study, for example, the fibrate gemfibrozil was associated with a 34% (P < .02) reduction in the incidence in coronary heart disease among middle-aged men with dyslipidemia that included elevated TGs.

In the statin era, which began soon after the Helsinki Heart Study was published in 1987, Dr. Watson counted at least five studies with fibrates that had a null result.

In the setting of good control of LDL cholesterol, “fibrates have not been shown to further lower CV risk,” said Dr. Watson, who was invited by the AHA to discuss the PROMINENT trial.

In PROMINENT, 10,497 patients with type 2 diabetes were randomized to pemafibrate, a peroxisome proliferator-activated receptor a (PPAR-a) agonist, or placebo. Pemafibrate is not currently available in North America or Europe, but it is licensed in Japan for the treatment of hypertriglyceridemia.

The primary efficacy endpoint of the double-blind trial was a composite endpoint of nonfatal myocardial infarction, ischemic stroke, coronary revascularization, or death.

The patients were eligible if they had TG levels from 200 to 400 mg/dL and HDL cholesterol levels of 40 mg/dL or below. Pemafibrate in a dose of 0.2 mg or placebo were taken twice daily. About two-thirds had a prior history of coronary heart disease. The goal was primary prevention in the remainder.

After a median follow-up of 3.4 years when the study was stopped for futility, the proportion of patients reaching a primary endpoint was slightly greater in the experimental arm (3.60 vs. 3.51 events per 100 patient-years). The hazard ratio, although not significant, was nominally in favor of placebo (hazard ratio, 1.03; P = .67).

When events within the composite endpoint were assessed individually, there was no signal of benefit for any outcome. The rates of death from any cause, although numerically higher in the pemafibrate group (2.44 vs. 2.34 per 100 patient years), were also comparable.
 

 

 

Lipid profile improved as predicted

Yet, in regard to an improvement in the lipid profile, pemafibrate performed as predicted. When compared to placebo 4 months into the trial, pemafibrate was associated with median reductions of 26.2% in TGs, 25.8% in VLDL, and 25.6% in remnant cholesterol, which is cholesterol transported in TG-rich lipoproteins after lipolysis and lipoprotein remodeling.

Furthermore, pemafibrate was associated with a median 27.6% reduction relative to placebo in apolipoprotein C-III and a median 4.8% reduction in apolipoprotein E, all of which would be expected to reduce CV risk.

The findings of PROMINENT were published online in the New England Journal of Medicine immediately after their presentation.

The findings of this study do not eliminate any hope for lowering residual CV risk with TG reductions, but they do suggest the relationship with other lipid subfractions is complex, according to Salim S. Virani, MD, PhD, a professor of cardiology at Baylor College of Medicine, Houston.

“I think that the lack of efficacy despite TG lowering may be largely due to a lack of an overall decrease in the apolipoprotein B level,” speculated Dr. Virani, who wrote an editorial that accompanied publication of the PROMINENT results.

He noted that pemafibrate is implicated in converting remnant cholesterol to LDL cholesterol, which might be one reason for a counterproductive effect on CV risk.

“In order for therapies that lower TG levels to be effective, they probably have to have mechanisms to increase clearance of TG-rich remnant lipoprotein cholesterol particles rather than just converting remnant lipoproteins to LDL,” Dr. Virani explained in an attempt to unravel the interplay of these variables.

Although this study enrolled patients “who would be predicted to have the most benefit from a TG-lowering strategy,” Dr. Watson agreed that these results do not necessarily extend to other means of lowering TG. However, it might draw into question the value of pemafibrate and perhaps other drugs in this class for treatment of hypertriglyceridemia. In addition to a lack of CV benefit, treatment was not without risks, including a higher rate of thromboembolism and adverse renal events.

Dr. Das Pradhan reported financial relationships with Denka, Medtelligence, Optum, Novo Nordisk, and Kowa, which provided funding for this trial. Dr. Watson reported financial relationships with Amarin, Amgen, Boehringer-Ingelheim, and Esperion.

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Twenty-five percent reduction has no effect

Twenty-five percent reduction has no effect

 

– Despite a 25% reduction in triglycerides (TGs) along with similar reductions in very-low-density lipoprotein (VLDL), and remnant cholesterol, a novel agent failed to provide any protection in a multinational trial against a composite endpoint of major adverse cardiovascular events (MACE) in patients with type 2 diabetes.

“Our data further highlight the complexity of lipid mediators of residual risk among patients with insulin resistance who are receiving statin therapy,” reported Aruna Das Pradhan, MD, of Harvard Medical School, Boston, and Queen Mary University, London.

Ted Bosworth/MDedge News
Dr. Aruna Das Pradhan
The trial, called PROMINENT, was presented at the American Heart Association scientific sessions.

It is the most recent in a series of trials that have failed to associate a meaningful reduction in TGs with protection from a composite MACE endpoint. This is a pattern that dates back 20 years, even though earlier trials did suggest that hypertriglyceridemia was a targetable risk factor.
 

No benefit from fibrates seen in statin era

“We have not seen a significant cardiovascular event reduction with a fibrate in the statin era,” according to Karol Watson, MD, PhD, director of the UCLA Women’s Cardiovascular Health Center, Los Angeles.

Ted Bosworth/MDedge News
Dr. Karol Watson
Prior to the availability of statin therapy, there was evidence of benefit from TG lowering. In the Helsinki Heart Study, for example, the fibrate gemfibrozil was associated with a 34% (P < .02) reduction in the incidence in coronary heart disease among middle-aged men with dyslipidemia that included elevated TGs.

In the statin era, which began soon after the Helsinki Heart Study was published in 1987, Dr. Watson counted at least five studies with fibrates that had a null result.

In the setting of good control of LDL cholesterol, “fibrates have not been shown to further lower CV risk,” said Dr. Watson, who was invited by the AHA to discuss the PROMINENT trial.

In PROMINENT, 10,497 patients with type 2 diabetes were randomized to pemafibrate, a peroxisome proliferator-activated receptor a (PPAR-a) agonist, or placebo. Pemafibrate is not currently available in North America or Europe, but it is licensed in Japan for the treatment of hypertriglyceridemia.

The primary efficacy endpoint of the double-blind trial was a composite endpoint of nonfatal myocardial infarction, ischemic stroke, coronary revascularization, or death.

The patients were eligible if they had TG levels from 200 to 400 mg/dL and HDL cholesterol levels of 40 mg/dL or below. Pemafibrate in a dose of 0.2 mg or placebo were taken twice daily. About two-thirds had a prior history of coronary heart disease. The goal was primary prevention in the remainder.

After a median follow-up of 3.4 years when the study was stopped for futility, the proportion of patients reaching a primary endpoint was slightly greater in the experimental arm (3.60 vs. 3.51 events per 100 patient-years). The hazard ratio, although not significant, was nominally in favor of placebo (hazard ratio, 1.03; P = .67).

When events within the composite endpoint were assessed individually, there was no signal of benefit for any outcome. The rates of death from any cause, although numerically higher in the pemafibrate group (2.44 vs. 2.34 per 100 patient years), were also comparable.
 

 

 

Lipid profile improved as predicted

Yet, in regard to an improvement in the lipid profile, pemafibrate performed as predicted. When compared to placebo 4 months into the trial, pemafibrate was associated with median reductions of 26.2% in TGs, 25.8% in VLDL, and 25.6% in remnant cholesterol, which is cholesterol transported in TG-rich lipoproteins after lipolysis and lipoprotein remodeling.

Furthermore, pemafibrate was associated with a median 27.6% reduction relative to placebo in apolipoprotein C-III and a median 4.8% reduction in apolipoprotein E, all of which would be expected to reduce CV risk.

The findings of PROMINENT were published online in the New England Journal of Medicine immediately after their presentation.

The findings of this study do not eliminate any hope for lowering residual CV risk with TG reductions, but they do suggest the relationship with other lipid subfractions is complex, according to Salim S. Virani, MD, PhD, a professor of cardiology at Baylor College of Medicine, Houston.

“I think that the lack of efficacy despite TG lowering may be largely due to a lack of an overall decrease in the apolipoprotein B level,” speculated Dr. Virani, who wrote an editorial that accompanied publication of the PROMINENT results.

He noted that pemafibrate is implicated in converting remnant cholesterol to LDL cholesterol, which might be one reason for a counterproductive effect on CV risk.

“In order for therapies that lower TG levels to be effective, they probably have to have mechanisms to increase clearance of TG-rich remnant lipoprotein cholesterol particles rather than just converting remnant lipoproteins to LDL,” Dr. Virani explained in an attempt to unravel the interplay of these variables.

Although this study enrolled patients “who would be predicted to have the most benefit from a TG-lowering strategy,” Dr. Watson agreed that these results do not necessarily extend to other means of lowering TG. However, it might draw into question the value of pemafibrate and perhaps other drugs in this class for treatment of hypertriglyceridemia. In addition to a lack of CV benefit, treatment was not without risks, including a higher rate of thromboembolism and adverse renal events.

Dr. Das Pradhan reported financial relationships with Denka, Medtelligence, Optum, Novo Nordisk, and Kowa, which provided funding for this trial. Dr. Watson reported financial relationships with Amarin, Amgen, Boehringer-Ingelheim, and Esperion.

 

– Despite a 25% reduction in triglycerides (TGs) along with similar reductions in very-low-density lipoprotein (VLDL), and remnant cholesterol, a novel agent failed to provide any protection in a multinational trial against a composite endpoint of major adverse cardiovascular events (MACE) in patients with type 2 diabetes.

“Our data further highlight the complexity of lipid mediators of residual risk among patients with insulin resistance who are receiving statin therapy,” reported Aruna Das Pradhan, MD, of Harvard Medical School, Boston, and Queen Mary University, London.

Ted Bosworth/MDedge News
Dr. Aruna Das Pradhan
The trial, called PROMINENT, was presented at the American Heart Association scientific sessions.

It is the most recent in a series of trials that have failed to associate a meaningful reduction in TGs with protection from a composite MACE endpoint. This is a pattern that dates back 20 years, even though earlier trials did suggest that hypertriglyceridemia was a targetable risk factor.
 

No benefit from fibrates seen in statin era

“We have not seen a significant cardiovascular event reduction with a fibrate in the statin era,” according to Karol Watson, MD, PhD, director of the UCLA Women’s Cardiovascular Health Center, Los Angeles.

Ted Bosworth/MDedge News
Dr. Karol Watson
Prior to the availability of statin therapy, there was evidence of benefit from TG lowering. In the Helsinki Heart Study, for example, the fibrate gemfibrozil was associated with a 34% (P < .02) reduction in the incidence in coronary heart disease among middle-aged men with dyslipidemia that included elevated TGs.

In the statin era, which began soon after the Helsinki Heart Study was published in 1987, Dr. Watson counted at least five studies with fibrates that had a null result.

In the setting of good control of LDL cholesterol, “fibrates have not been shown to further lower CV risk,” said Dr. Watson, who was invited by the AHA to discuss the PROMINENT trial.

In PROMINENT, 10,497 patients with type 2 diabetes were randomized to pemafibrate, a peroxisome proliferator-activated receptor a (PPAR-a) agonist, or placebo. Pemafibrate is not currently available in North America or Europe, but it is licensed in Japan for the treatment of hypertriglyceridemia.

The primary efficacy endpoint of the double-blind trial was a composite endpoint of nonfatal myocardial infarction, ischemic stroke, coronary revascularization, or death.

The patients were eligible if they had TG levels from 200 to 400 mg/dL and HDL cholesterol levels of 40 mg/dL or below. Pemafibrate in a dose of 0.2 mg or placebo were taken twice daily. About two-thirds had a prior history of coronary heart disease. The goal was primary prevention in the remainder.

After a median follow-up of 3.4 years when the study was stopped for futility, the proportion of patients reaching a primary endpoint was slightly greater in the experimental arm (3.60 vs. 3.51 events per 100 patient-years). The hazard ratio, although not significant, was nominally in favor of placebo (hazard ratio, 1.03; P = .67).

When events within the composite endpoint were assessed individually, there was no signal of benefit for any outcome. The rates of death from any cause, although numerically higher in the pemafibrate group (2.44 vs. 2.34 per 100 patient years), were also comparable.
 

 

 

Lipid profile improved as predicted

Yet, in regard to an improvement in the lipid profile, pemafibrate performed as predicted. When compared to placebo 4 months into the trial, pemafibrate was associated with median reductions of 26.2% in TGs, 25.8% in VLDL, and 25.6% in remnant cholesterol, which is cholesterol transported in TG-rich lipoproteins after lipolysis and lipoprotein remodeling.

Furthermore, pemafibrate was associated with a median 27.6% reduction relative to placebo in apolipoprotein C-III and a median 4.8% reduction in apolipoprotein E, all of which would be expected to reduce CV risk.

The findings of PROMINENT were published online in the New England Journal of Medicine immediately after their presentation.

The findings of this study do not eliminate any hope for lowering residual CV risk with TG reductions, but they do suggest the relationship with other lipid subfractions is complex, according to Salim S. Virani, MD, PhD, a professor of cardiology at Baylor College of Medicine, Houston.

“I think that the lack of efficacy despite TG lowering may be largely due to a lack of an overall decrease in the apolipoprotein B level,” speculated Dr. Virani, who wrote an editorial that accompanied publication of the PROMINENT results.

He noted that pemafibrate is implicated in converting remnant cholesterol to LDL cholesterol, which might be one reason for a counterproductive effect on CV risk.

“In order for therapies that lower TG levels to be effective, they probably have to have mechanisms to increase clearance of TG-rich remnant lipoprotein cholesterol particles rather than just converting remnant lipoproteins to LDL,” Dr. Virani explained in an attempt to unravel the interplay of these variables.

Although this study enrolled patients “who would be predicted to have the most benefit from a TG-lowering strategy,” Dr. Watson agreed that these results do not necessarily extend to other means of lowering TG. However, it might draw into question the value of pemafibrate and perhaps other drugs in this class for treatment of hypertriglyceridemia. In addition to a lack of CV benefit, treatment was not without risks, including a higher rate of thromboembolism and adverse renal events.

Dr. Das Pradhan reported financial relationships with Denka, Medtelligence, Optum, Novo Nordisk, and Kowa, which provided funding for this trial. Dr. Watson reported financial relationships with Amarin, Amgen, Boehringer-Ingelheim, and Esperion.

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Marital stress tied to worse outcome in young MI patients

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Fri, 11/04/2022 - 11:32

Severe marital stress was associated with worse recovery after myocardial infarction in a large U.S. cohort of married/partnered patients aged 55 years or younger.

Compared with patients who reported no or mild marital stress a month after their MI, patients who reported severe marital stress had worse physical and mental health, worse generic and cardiovascular quality of life, more frequent angina symptoms, and a greater likelihood of having a hospital readmission a year later.

These findings held true after adjusting for gender, age, race/ethnicity, and baseline health status (model 1) and after further adjusting for education and income levels and employment and insurance status (model 2).

A greater percentage of women than men reported having severe marital stress (39% vs. 30%; P = .001).

Cenjing Zhu, MPhil, a PhD candidate at Yale University, New Haven, Conn., and colleagues will present this study at the American Heart Association scientific sessions.

The results show that “both patients and care providers should be aware that stress experienced in one’s everyday life, such as marital stress, can affect AMI [acute MI] recovery,” Ms. Zhu said in an email.

Health care providers should consider incorporating screening for everyday stress during follow-up patient visits to better spot people at high risk of a poor recovery and further hospitalizations, she added. When possible, they could guide patients to resources to help them manage and reduce their stress levels.

According to Ms. Zhu, the findings suggest that “managing personal stress may be as important as managing other clinical risk factors during the recovery process.”

Dr. Nieca Goldberg

This study in younger patients with MI “shows that high levels of marital stress impair heart attack recovery, and women have greater impairment in their heart attack recovery compared to men,” AHA spokesperson Nieca Goldberg, MD, who was not involved with this research, told this news organization.

The study shows that “clinicians have to incorporate mental health as part of their assessment of all patients,” said Dr. Goldberg, a clinical associate professor of medicine at New York University and medical director of Atria New York City.

“Our mental health impacts our physical health,” she noted. “Questions about marital stress should be included as part of an overall assessment of mental health. This means assessing all patients for stress, anxiety, and depression.”

Patients who are experiencing marital stress should share the information with their doctor and discuss ways to be referred to therapists and cardiac rehabilitation providers, she said. “My final thought is, women have often been told that their cardiac symptoms are due to stress by doctors. Now we know stress impacts physical health and [is] no longer an excuse but a contributing factor to our physical health.”
 

Does marital stress affect young MI recovery?

Previous literature has linked psychological stress with worse cardiovascular outcomes, Ms. Zhu noted.

However, little is known about the prognostic impact of marital stress on 1-year health outcomes for younger people who survive an MI.

To investigate this, the researchers analyzed data from participants in the Variation in Recovery: Role of Gender on Outcomes of Young AMI Patients (VIRGO) study.

The current study comprised 1,593 adults, including 1,020 female participants (64%), who were treated for MI at 103 hospitals in 30 U.S. states.

VIRGO enrolled participants in a 2:1 female-to-male ratio so as to enrich the inclusion of women, Ms. Zhu explained.

In the study, “partnered” participants were individuals who self-reported as “living as married/living with a partner.” There were 126 such patients (8%) in the current study.

The mean age of the patients was 47, and about 90% were 40-55 years old. Three quarters were White, 13% were Black, and 7% were Hispanic.

Marital stress was assessed on the basis of patients’ replies to 17 questions in the Stockholm Marital Stress Scale regarding the quality of their emotional and sexual relationships with their spouses/partners.

The researchers divided patients into three groups on the basis of their marital stress: mild or absent (lowest quartile), moderate (second quartile), and severe (upper two quartiles).

At 1 year after their MI, patients replied to questionnaires that assessed their health, quality of life, and depressive and angina symptoms. Hospital readmissions were determined on the basis of self-reports and medical records.

Compared to participants who reported no or mild marital stress, those who reported severe mental stress had significantly worse scores for physical and mental health and generic and cardiovascular quality of life, after adjusting for baseline health and demographics. They had worse scores for mental health and quality of life, after further adjusting for socioeconomic status.

In the fully adjusted model, patients who reported severe marital stress were significantly more likely to report more frequent chest pain/angina (odds ratio, 1.49; 95% confidence interval, 1.06-2.10; P = .023) and to have been readmitted to hospital for any cause (OR, 1.45; 95% CI, 1.04-2.00; P = .006), compared with the patients who reported no or mild marital stress.

Study limitations include the fact that the findings are based on self-reported questionnaire replies; they may not be generalizable to patients in other countries; and they do not extend beyond a period of 1 year.

The researchers call for further research “to understand this complex relationship and potential causal pathway associated with these findings.”

“Additional stressors beyond marital stress, such as financial strain or work stress, may also play a role in young adults’ recovery, and the interaction between these factors require further research,” Ms. Zhu noted in a press release from the AHA.

The study was funded by Canadian Institutes of Health Research. The VIRGO study was funded by the National Heart, Lung, and Blood Institute. Ms. Zhu and Dr. Goldberg have disclosed no relevant financial relationships.

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

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Severe marital stress was associated with worse recovery after myocardial infarction in a large U.S. cohort of married/partnered patients aged 55 years or younger.

Compared with patients who reported no or mild marital stress a month after their MI, patients who reported severe marital stress had worse physical and mental health, worse generic and cardiovascular quality of life, more frequent angina symptoms, and a greater likelihood of having a hospital readmission a year later.

These findings held true after adjusting for gender, age, race/ethnicity, and baseline health status (model 1) and after further adjusting for education and income levels and employment and insurance status (model 2).

A greater percentage of women than men reported having severe marital stress (39% vs. 30%; P = .001).

Cenjing Zhu, MPhil, a PhD candidate at Yale University, New Haven, Conn., and colleagues will present this study at the American Heart Association scientific sessions.

The results show that “both patients and care providers should be aware that stress experienced in one’s everyday life, such as marital stress, can affect AMI [acute MI] recovery,” Ms. Zhu said in an email.

Health care providers should consider incorporating screening for everyday stress during follow-up patient visits to better spot people at high risk of a poor recovery and further hospitalizations, she added. When possible, they could guide patients to resources to help them manage and reduce their stress levels.

According to Ms. Zhu, the findings suggest that “managing personal stress may be as important as managing other clinical risk factors during the recovery process.”

Dr. Nieca Goldberg

This study in younger patients with MI “shows that high levels of marital stress impair heart attack recovery, and women have greater impairment in their heart attack recovery compared to men,” AHA spokesperson Nieca Goldberg, MD, who was not involved with this research, told this news organization.

The study shows that “clinicians have to incorporate mental health as part of their assessment of all patients,” said Dr. Goldberg, a clinical associate professor of medicine at New York University and medical director of Atria New York City.

“Our mental health impacts our physical health,” she noted. “Questions about marital stress should be included as part of an overall assessment of mental health. This means assessing all patients for stress, anxiety, and depression.”

Patients who are experiencing marital stress should share the information with their doctor and discuss ways to be referred to therapists and cardiac rehabilitation providers, she said. “My final thought is, women have often been told that their cardiac symptoms are due to stress by doctors. Now we know stress impacts physical health and [is] no longer an excuse but a contributing factor to our physical health.”
 

Does marital stress affect young MI recovery?

Previous literature has linked psychological stress with worse cardiovascular outcomes, Ms. Zhu noted.

However, little is known about the prognostic impact of marital stress on 1-year health outcomes for younger people who survive an MI.

To investigate this, the researchers analyzed data from participants in the Variation in Recovery: Role of Gender on Outcomes of Young AMI Patients (VIRGO) study.

The current study comprised 1,593 adults, including 1,020 female participants (64%), who were treated for MI at 103 hospitals in 30 U.S. states.

VIRGO enrolled participants in a 2:1 female-to-male ratio so as to enrich the inclusion of women, Ms. Zhu explained.

In the study, “partnered” participants were individuals who self-reported as “living as married/living with a partner.” There were 126 such patients (8%) in the current study.

The mean age of the patients was 47, and about 90% were 40-55 years old. Three quarters were White, 13% were Black, and 7% were Hispanic.

Marital stress was assessed on the basis of patients’ replies to 17 questions in the Stockholm Marital Stress Scale regarding the quality of their emotional and sexual relationships with their spouses/partners.

The researchers divided patients into three groups on the basis of their marital stress: mild or absent (lowest quartile), moderate (second quartile), and severe (upper two quartiles).

At 1 year after their MI, patients replied to questionnaires that assessed their health, quality of life, and depressive and angina symptoms. Hospital readmissions were determined on the basis of self-reports and medical records.

Compared to participants who reported no or mild marital stress, those who reported severe mental stress had significantly worse scores for physical and mental health and generic and cardiovascular quality of life, after adjusting for baseline health and demographics. They had worse scores for mental health and quality of life, after further adjusting for socioeconomic status.

In the fully adjusted model, patients who reported severe marital stress were significantly more likely to report more frequent chest pain/angina (odds ratio, 1.49; 95% confidence interval, 1.06-2.10; P = .023) and to have been readmitted to hospital for any cause (OR, 1.45; 95% CI, 1.04-2.00; P = .006), compared with the patients who reported no or mild marital stress.

Study limitations include the fact that the findings are based on self-reported questionnaire replies; they may not be generalizable to patients in other countries; and they do not extend beyond a period of 1 year.

The researchers call for further research “to understand this complex relationship and potential causal pathway associated with these findings.”

“Additional stressors beyond marital stress, such as financial strain or work stress, may also play a role in young adults’ recovery, and the interaction between these factors require further research,” Ms. Zhu noted in a press release from the AHA.

The study was funded by Canadian Institutes of Health Research. The VIRGO study was funded by the National Heart, Lung, and Blood Institute. Ms. Zhu and Dr. Goldberg have disclosed no relevant financial relationships.

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

Severe marital stress was associated with worse recovery after myocardial infarction in a large U.S. cohort of married/partnered patients aged 55 years or younger.

Compared with patients who reported no or mild marital stress a month after their MI, patients who reported severe marital stress had worse physical and mental health, worse generic and cardiovascular quality of life, more frequent angina symptoms, and a greater likelihood of having a hospital readmission a year later.

These findings held true after adjusting for gender, age, race/ethnicity, and baseline health status (model 1) and after further adjusting for education and income levels and employment and insurance status (model 2).

A greater percentage of women than men reported having severe marital stress (39% vs. 30%; P = .001).

Cenjing Zhu, MPhil, a PhD candidate at Yale University, New Haven, Conn., and colleagues will present this study at the American Heart Association scientific sessions.

The results show that “both patients and care providers should be aware that stress experienced in one’s everyday life, such as marital stress, can affect AMI [acute MI] recovery,” Ms. Zhu said in an email.

Health care providers should consider incorporating screening for everyday stress during follow-up patient visits to better spot people at high risk of a poor recovery and further hospitalizations, she added. When possible, they could guide patients to resources to help them manage and reduce their stress levels.

According to Ms. Zhu, the findings suggest that “managing personal stress may be as important as managing other clinical risk factors during the recovery process.”

Dr. Nieca Goldberg

This study in younger patients with MI “shows that high levels of marital stress impair heart attack recovery, and women have greater impairment in their heart attack recovery compared to men,” AHA spokesperson Nieca Goldberg, MD, who was not involved with this research, told this news organization.

The study shows that “clinicians have to incorporate mental health as part of their assessment of all patients,” said Dr. Goldberg, a clinical associate professor of medicine at New York University and medical director of Atria New York City.

“Our mental health impacts our physical health,” she noted. “Questions about marital stress should be included as part of an overall assessment of mental health. This means assessing all patients for stress, anxiety, and depression.”

Patients who are experiencing marital stress should share the information with their doctor and discuss ways to be referred to therapists and cardiac rehabilitation providers, she said. “My final thought is, women have often been told that their cardiac symptoms are due to stress by doctors. Now we know stress impacts physical health and [is] no longer an excuse but a contributing factor to our physical health.”
 

Does marital stress affect young MI recovery?

Previous literature has linked psychological stress with worse cardiovascular outcomes, Ms. Zhu noted.

However, little is known about the prognostic impact of marital stress on 1-year health outcomes for younger people who survive an MI.

To investigate this, the researchers analyzed data from participants in the Variation in Recovery: Role of Gender on Outcomes of Young AMI Patients (VIRGO) study.

The current study comprised 1,593 adults, including 1,020 female participants (64%), who were treated for MI at 103 hospitals in 30 U.S. states.

VIRGO enrolled participants in a 2:1 female-to-male ratio so as to enrich the inclusion of women, Ms. Zhu explained.

In the study, “partnered” participants were individuals who self-reported as “living as married/living with a partner.” There were 126 such patients (8%) in the current study.

The mean age of the patients was 47, and about 90% were 40-55 years old. Three quarters were White, 13% were Black, and 7% were Hispanic.

Marital stress was assessed on the basis of patients’ replies to 17 questions in the Stockholm Marital Stress Scale regarding the quality of their emotional and sexual relationships with their spouses/partners.

The researchers divided patients into three groups on the basis of their marital stress: mild or absent (lowest quartile), moderate (second quartile), and severe (upper two quartiles).

At 1 year after their MI, patients replied to questionnaires that assessed their health, quality of life, and depressive and angina symptoms. Hospital readmissions were determined on the basis of self-reports and medical records.

Compared to participants who reported no or mild marital stress, those who reported severe mental stress had significantly worse scores for physical and mental health and generic and cardiovascular quality of life, after adjusting for baseline health and demographics. They had worse scores for mental health and quality of life, after further adjusting for socioeconomic status.

In the fully adjusted model, patients who reported severe marital stress were significantly more likely to report more frequent chest pain/angina (odds ratio, 1.49; 95% confidence interval, 1.06-2.10; P = .023) and to have been readmitted to hospital for any cause (OR, 1.45; 95% CI, 1.04-2.00; P = .006), compared with the patients who reported no or mild marital stress.

Study limitations include the fact that the findings are based on self-reported questionnaire replies; they may not be generalizable to patients in other countries; and they do not extend beyond a period of 1 year.

The researchers call for further research “to understand this complex relationship and potential causal pathway associated with these findings.”

“Additional stressors beyond marital stress, such as financial strain or work stress, may also play a role in young adults’ recovery, and the interaction between these factors require further research,” Ms. Zhu noted in a press release from the AHA.

The study was funded by Canadian Institutes of Health Research. The VIRGO study was funded by the National Heart, Lung, and Blood Institute. Ms. Zhu and Dr. Goldberg have disclosed no relevant financial relationships.

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

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AHA 2022 to recapture in-person vibe but preserve global reach

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Wed, 11/02/2022 - 14:39

That a bustling medical conference can have global reach as it unfolds is one of the COVID pandemic’s many lessons for science. Hybrid meetings such as the American Heart Association scientific sessions, getting underway Nov. 5 in Chicago and cyberspace, are one of its legacies.

The conference is set to recapture the magic of the in-person Scientific Sessions last experienced in Philadelphia in 2019. But planners are mindful of a special responsibility to younger clinicians and scientists who entered the field knowing only the virtual format and who may not know “what it’s like in a room when major science is presented or to present posters and have people come by for conversations,” Manesh R. Patel, MD, chair of the AHA 2022 Scientific Sessions program committee, told this news organization.

Still, the pandemic has underlined the value of live streaming for the great many who can’t attend in person, Dr. Patel said. At AHA 2022, virtual access doesn’t mean only late breaking and featured presentations; more than 70 full sessions will be streamed from Friday through Monday.

Overall, the conference has more than 800 sessions on the schedule, about a third are panels or invited lectures and two-thirds are original reports on the latest research. At the core of the research offerings, 78 studies and analyses are slated across 18 Late-Breaking Science (LBS) and Featured Science (FS) sessions from Saturday through Monday. At least 30 presentations and abstracts will enter the peer-reviewed literature right away with their simultaneous online publication, Dr. Patel said.

More a meet-and-greet than a presentation, the Puppy Snuggles Booth will make a return appearance in Chicago after earning rave reviews at the 2019 Sessions in Philadelphia. All are invited to take a breather from their schedules to pet, cuddle, and play with a passel of pups, all in need of homes and available for adoption. The experience’s favorable effect on blood pressure is almost guaranteed.
 

LBS and FS highlights

“It’s an amazing year for Late Breaking Science and Featured Science at the Scientific Sessions,” Dr. Patel said of the presentations selected for special attention after a rigorous review process. “We have science that is as broad and as deep as we’ve seen in years.”

Saturday’s two LBS sessions kick off the series with studies looking at agents long available in heart failure and hypertension but lacking solid supporting evidence, “pretty large randomized trials that are, we think, going to affect clinical practice as soon as they are presented,” Dr. Patel said.

They include TRANSFORM-HF, a comparison of the loop diuretics furosemide and torsemide in patients hospitalized with heart failure. And the Diuretic Comparison Project (DCP), with more than 13,000 patients with hypertension assigned to the diuretics chlorthalidone or hydrochlorothiazide, “is going to immediately impact how people think about blood pressure management,” Dr. Patel said.

Other highlights in the hypertension arena include the CRHCP trial, the MB-BP study, the Rich Life Project, and the polypill efficacy and safety trial QUARTET-USA, all in Sunday’s LBS-4; and the FRESH, PRECISION, and BrigHTN trials, all in LBS-9 on Monday.

Other heart failure trials joining TRANSFORM-HF in the line-up include IRONMAN, which revisited IV iron therapy in iron-deficient patients, in LBS-2 on Saturday and, in FS-4 on Monday, BETA3LVH and STRONG-HF, the latter a timely randomized test of pre- and post-discharge biomarker-driven uptitration of guideline-directed heart failure meds.

STRONG-HF was halted early, the trial’s nonprofit sponsor announced only weeks ago, after patients following the intensive uptitration strategy versus usual care showed a reduced risk of death or heart failure readmission; few other details were given.

Several sessions will be devoted to a rare breed of randomized trial, one that tests the efficacy of traditional herbal meds or nonprescription supplements against proven medications. “These are going to get a lot of people’s interest, one can imagine, because they are on common questions that patients bring to the clinic every day,” Dr. Patel said.

Such studies include CTS-AMI, which explored the traditional Chinese herbal medicine tongxinluo in ST-segment elevation myocardial infarction, in LBS-3 on Sunday, and SPORT in Sunday’s LBS-5, a small randomized comparison of low-dose rosuvastatin, cinnamon, garlic, turmeric, an omega-3 fish-oil supplement, a plant sterol, red yeast rice, and placebo for any effects on LDL-C levels.

Other novel approaches to dyslipidemia management are to be covered in RESPECT-EPA and OCEAN(a)-DOSE, both in LBS-5 on Sunday, and all five presentations in Monday’s FS-9, including ARCHES-2, SHASTA-2, FOURIER-OLE, and ORION-3.

The interplay of antiplatelets and coronary interventions will be explored in presentations called OPTION, in LBS-6 on Sunday, and HOST-EXAM and TWILIGHT, in FS-6 on Monday.

Coronary and peripheral-vascular interventions are center stage in reports on RAPCO in LBS-3 and BRIGHT-4 in LBS-6, both on Sunday, and BEST-CLI in LBS-7 and the After-80 Study in FS-6, both on Monday.

Several Monday reports will cover comorbidities and complications associated with COVID-19, including PREVENT-HD in LBS-7, and PANAMO, FERMIN, COVID-NET, and a secondary analysis of the DELIVER trial in FS-5.
 

Rebroadcasts for the Pacific Rim

The sessions will also feature several evening rebroadcasts of earlier LBS sessions that meeting planners scored highly for scientific merit and potential clinical impact but also for their “regional pull,” primarily for our colleagues in Asia, Dr. Patel said.

The first two LBS sessions presented live during the day in Chicago will be rebroadcast that evening as, for example, Sunday morning and afternoon fare in Tokyo and Singapore. And LBS-5 live Sunday afternoon will rebroadcast that night as a Monday mid-morning session in, say, Hong Kong or Seoul.

This year’s AHA meeting spans the range of cardiovascular care, from precision therapies, such as gene editing or specific drugs, to broad strategies that consider, for example, social determinants of health, Dr. Patel said. “I think people, when they leave the Scientific Sessions, will feel very engaged in the larger conversation about how you impact very common conditions globally.”

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

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That a bustling medical conference can have global reach as it unfolds is one of the COVID pandemic’s many lessons for science. Hybrid meetings such as the American Heart Association scientific sessions, getting underway Nov. 5 in Chicago and cyberspace, are one of its legacies.

The conference is set to recapture the magic of the in-person Scientific Sessions last experienced in Philadelphia in 2019. But planners are mindful of a special responsibility to younger clinicians and scientists who entered the field knowing only the virtual format and who may not know “what it’s like in a room when major science is presented or to present posters and have people come by for conversations,” Manesh R. Patel, MD, chair of the AHA 2022 Scientific Sessions program committee, told this news organization.

Still, the pandemic has underlined the value of live streaming for the great many who can’t attend in person, Dr. Patel said. At AHA 2022, virtual access doesn’t mean only late breaking and featured presentations; more than 70 full sessions will be streamed from Friday through Monday.

Overall, the conference has more than 800 sessions on the schedule, about a third are panels or invited lectures and two-thirds are original reports on the latest research. At the core of the research offerings, 78 studies and analyses are slated across 18 Late-Breaking Science (LBS) and Featured Science (FS) sessions from Saturday through Monday. At least 30 presentations and abstracts will enter the peer-reviewed literature right away with their simultaneous online publication, Dr. Patel said.

More a meet-and-greet than a presentation, the Puppy Snuggles Booth will make a return appearance in Chicago after earning rave reviews at the 2019 Sessions in Philadelphia. All are invited to take a breather from their schedules to pet, cuddle, and play with a passel of pups, all in need of homes and available for adoption. The experience’s favorable effect on blood pressure is almost guaranteed.
 

LBS and FS highlights

“It’s an amazing year for Late Breaking Science and Featured Science at the Scientific Sessions,” Dr. Patel said of the presentations selected for special attention after a rigorous review process. “We have science that is as broad and as deep as we’ve seen in years.”

Saturday’s two LBS sessions kick off the series with studies looking at agents long available in heart failure and hypertension but lacking solid supporting evidence, “pretty large randomized trials that are, we think, going to affect clinical practice as soon as they are presented,” Dr. Patel said.

They include TRANSFORM-HF, a comparison of the loop diuretics furosemide and torsemide in patients hospitalized with heart failure. And the Diuretic Comparison Project (DCP), with more than 13,000 patients with hypertension assigned to the diuretics chlorthalidone or hydrochlorothiazide, “is going to immediately impact how people think about blood pressure management,” Dr. Patel said.

Other highlights in the hypertension arena include the CRHCP trial, the MB-BP study, the Rich Life Project, and the polypill efficacy and safety trial QUARTET-USA, all in Sunday’s LBS-4; and the FRESH, PRECISION, and BrigHTN trials, all in LBS-9 on Monday.

Other heart failure trials joining TRANSFORM-HF in the line-up include IRONMAN, which revisited IV iron therapy in iron-deficient patients, in LBS-2 on Saturday and, in FS-4 on Monday, BETA3LVH and STRONG-HF, the latter a timely randomized test of pre- and post-discharge biomarker-driven uptitration of guideline-directed heart failure meds.

STRONG-HF was halted early, the trial’s nonprofit sponsor announced only weeks ago, after patients following the intensive uptitration strategy versus usual care showed a reduced risk of death or heart failure readmission; few other details were given.

Several sessions will be devoted to a rare breed of randomized trial, one that tests the efficacy of traditional herbal meds or nonprescription supplements against proven medications. “These are going to get a lot of people’s interest, one can imagine, because they are on common questions that patients bring to the clinic every day,” Dr. Patel said.

Such studies include CTS-AMI, which explored the traditional Chinese herbal medicine tongxinluo in ST-segment elevation myocardial infarction, in LBS-3 on Sunday, and SPORT in Sunday’s LBS-5, a small randomized comparison of low-dose rosuvastatin, cinnamon, garlic, turmeric, an omega-3 fish-oil supplement, a plant sterol, red yeast rice, and placebo for any effects on LDL-C levels.

Other novel approaches to dyslipidemia management are to be covered in RESPECT-EPA and OCEAN(a)-DOSE, both in LBS-5 on Sunday, and all five presentations in Monday’s FS-9, including ARCHES-2, SHASTA-2, FOURIER-OLE, and ORION-3.

The interplay of antiplatelets and coronary interventions will be explored in presentations called OPTION, in LBS-6 on Sunday, and HOST-EXAM and TWILIGHT, in FS-6 on Monday.

Coronary and peripheral-vascular interventions are center stage in reports on RAPCO in LBS-3 and BRIGHT-4 in LBS-6, both on Sunday, and BEST-CLI in LBS-7 and the After-80 Study in FS-6, both on Monday.

Several Monday reports will cover comorbidities and complications associated with COVID-19, including PREVENT-HD in LBS-7, and PANAMO, FERMIN, COVID-NET, and a secondary analysis of the DELIVER trial in FS-5.
 

Rebroadcasts for the Pacific Rim

The sessions will also feature several evening rebroadcasts of earlier LBS sessions that meeting planners scored highly for scientific merit and potential clinical impact but also for their “regional pull,” primarily for our colleagues in Asia, Dr. Patel said.

The first two LBS sessions presented live during the day in Chicago will be rebroadcast that evening as, for example, Sunday morning and afternoon fare in Tokyo and Singapore. And LBS-5 live Sunday afternoon will rebroadcast that night as a Monday mid-morning session in, say, Hong Kong or Seoul.

This year’s AHA meeting spans the range of cardiovascular care, from precision therapies, such as gene editing or specific drugs, to broad strategies that consider, for example, social determinants of health, Dr. Patel said. “I think people, when they leave the Scientific Sessions, will feel very engaged in the larger conversation about how you impact very common conditions globally.”

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

That a bustling medical conference can have global reach as it unfolds is one of the COVID pandemic’s many lessons for science. Hybrid meetings such as the American Heart Association scientific sessions, getting underway Nov. 5 in Chicago and cyberspace, are one of its legacies.

The conference is set to recapture the magic of the in-person Scientific Sessions last experienced in Philadelphia in 2019. But planners are mindful of a special responsibility to younger clinicians and scientists who entered the field knowing only the virtual format and who may not know “what it’s like in a room when major science is presented or to present posters and have people come by for conversations,” Manesh R. Patel, MD, chair of the AHA 2022 Scientific Sessions program committee, told this news organization.

Still, the pandemic has underlined the value of live streaming for the great many who can’t attend in person, Dr. Patel said. At AHA 2022, virtual access doesn’t mean only late breaking and featured presentations; more than 70 full sessions will be streamed from Friday through Monday.

Overall, the conference has more than 800 sessions on the schedule, about a third are panels or invited lectures and two-thirds are original reports on the latest research. At the core of the research offerings, 78 studies and analyses are slated across 18 Late-Breaking Science (LBS) and Featured Science (FS) sessions from Saturday through Monday. At least 30 presentations and abstracts will enter the peer-reviewed literature right away with their simultaneous online publication, Dr. Patel said.

More a meet-and-greet than a presentation, the Puppy Snuggles Booth will make a return appearance in Chicago after earning rave reviews at the 2019 Sessions in Philadelphia. All are invited to take a breather from their schedules to pet, cuddle, and play with a passel of pups, all in need of homes and available for adoption. The experience’s favorable effect on blood pressure is almost guaranteed.
 

LBS and FS highlights

“It’s an amazing year for Late Breaking Science and Featured Science at the Scientific Sessions,” Dr. Patel said of the presentations selected for special attention after a rigorous review process. “We have science that is as broad and as deep as we’ve seen in years.”

Saturday’s two LBS sessions kick off the series with studies looking at agents long available in heart failure and hypertension but lacking solid supporting evidence, “pretty large randomized trials that are, we think, going to affect clinical practice as soon as they are presented,” Dr. Patel said.

They include TRANSFORM-HF, a comparison of the loop diuretics furosemide and torsemide in patients hospitalized with heart failure. And the Diuretic Comparison Project (DCP), with more than 13,000 patients with hypertension assigned to the diuretics chlorthalidone or hydrochlorothiazide, “is going to immediately impact how people think about blood pressure management,” Dr. Patel said.

Other highlights in the hypertension arena include the CRHCP trial, the MB-BP study, the Rich Life Project, and the polypill efficacy and safety trial QUARTET-USA, all in Sunday’s LBS-4; and the FRESH, PRECISION, and BrigHTN trials, all in LBS-9 on Monday.

Other heart failure trials joining TRANSFORM-HF in the line-up include IRONMAN, which revisited IV iron therapy in iron-deficient patients, in LBS-2 on Saturday and, in FS-4 on Monday, BETA3LVH and STRONG-HF, the latter a timely randomized test of pre- and post-discharge biomarker-driven uptitration of guideline-directed heart failure meds.

STRONG-HF was halted early, the trial’s nonprofit sponsor announced only weeks ago, after patients following the intensive uptitration strategy versus usual care showed a reduced risk of death or heart failure readmission; few other details were given.

Several sessions will be devoted to a rare breed of randomized trial, one that tests the efficacy of traditional herbal meds or nonprescription supplements against proven medications. “These are going to get a lot of people’s interest, one can imagine, because they are on common questions that patients bring to the clinic every day,” Dr. Patel said.

Such studies include CTS-AMI, which explored the traditional Chinese herbal medicine tongxinluo in ST-segment elevation myocardial infarction, in LBS-3 on Sunday, and SPORT in Sunday’s LBS-5, a small randomized comparison of low-dose rosuvastatin, cinnamon, garlic, turmeric, an omega-3 fish-oil supplement, a plant sterol, red yeast rice, and placebo for any effects on LDL-C levels.

Other novel approaches to dyslipidemia management are to be covered in RESPECT-EPA and OCEAN(a)-DOSE, both in LBS-5 on Sunday, and all five presentations in Monday’s FS-9, including ARCHES-2, SHASTA-2, FOURIER-OLE, and ORION-3.

The interplay of antiplatelets and coronary interventions will be explored in presentations called OPTION, in LBS-6 on Sunday, and HOST-EXAM and TWILIGHT, in FS-6 on Monday.

Coronary and peripheral-vascular interventions are center stage in reports on RAPCO in LBS-3 and BRIGHT-4 in LBS-6, both on Sunday, and BEST-CLI in LBS-7 and the After-80 Study in FS-6, both on Monday.

Several Monday reports will cover comorbidities and complications associated with COVID-19, including PREVENT-HD in LBS-7, and PANAMO, FERMIN, COVID-NET, and a secondary analysis of the DELIVER trial in FS-5.
 

Rebroadcasts for the Pacific Rim

The sessions will also feature several evening rebroadcasts of earlier LBS sessions that meeting planners scored highly for scientific merit and potential clinical impact but also for their “regional pull,” primarily for our colleagues in Asia, Dr. Patel said.

The first two LBS sessions presented live during the day in Chicago will be rebroadcast that evening as, for example, Sunday morning and afternoon fare in Tokyo and Singapore. And LBS-5 live Sunday afternoon will rebroadcast that night as a Monday mid-morning session in, say, Hong Kong or Seoul.

This year’s AHA meeting spans the range of cardiovascular care, from precision therapies, such as gene editing or specific drugs, to broad strategies that consider, for example, social determinants of health, Dr. Patel said. “I think people, when they leave the Scientific Sessions, will feel very engaged in the larger conversation about how you impact very common conditions globally.”

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

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Finerenone: ‘Striking’ cut in pneumonia, COVID-19 risks

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Thu, 12/15/2022 - 15:36

The nonsteroidal mineralocorticoid receptor antagonist finerenone (Kerendia) unexpectedly showed that it might protect against incident infective pneumonia and COVID-19. The finding was based on secondary analyses run on more than 13,000 people enrolled in the two pivotal trials for finerenone.

Finerenone was approved by the Food and Drug Administration in 2021 for slowing progressive renal dysfunction and preventing cardiovascular events in adults with type 2 diabetes and chronic kidney disease (CKD).
 

‘Striking reduction in the risk of pneumonia’

The “striking reduction in risk of pneumonia” in a new analysis suggests that “the propagation of pulmonary infection into lobar or bronchial consolidation may be reduced by finerenone,” write Bertram Pitt, MD, and coauthors in a report published on October 26 in JAMA Network Open.

They also suggest that if further studies confirm that finerenone treatment reduces complications from pneumonia and COVID-19, it would have “significant medical implications,” especially because of the limited treatment options now available for complications from COVID-19.

The new analyses used the FIDELITY dataset, a prespecified merging of results from the FIDELIO-DKD and FIGARO-DKD trials, which together enrolled 13,026 people with type 2 diabetes and CKD, as determined on the basis of the patients’ having a urine albumin-to-creatinine ratio of at least 30 mg/g.

The primary outcomes of these trials showed that treatment with finerenone led to significant slowing of the progression of CKD and a significant reduction in the incidence of cardiovascular events, compared with placebo during median follow-up of 3 years.

The new, secondary analyses focused on the 6.0% of participants in whom there was evidence of pneumonia and the 1.6% in whom there was evidence of having COVID-19. Pneumonia was the most common serious adverse event in the two trials, a finding consistent with the documented risk for pneumonia faced by people with CKD.
 

Finerenone linked with a 29% relative reduction in pneumonia

When analyzed by treatment, the incidence of pneumonia was 4.7% among those who received finerenone and 6.7% among those who received placebo. This translated into a significant relative risk reduction of 29% associated with finerenone treatment.

Analysis of COVID-19 adverse events showed a 1.3% incidence among those who received finerenone and a 1.8% incidence among those in the placebo group, which translated into a significant 27% relative risk reduction linked with finerenone treatment.

In contrast, the data showed no reduced incidence of several other respiratory infections among the finerenone recipients, including nasopharyngitis, bronchitis, and influenza. The data also showed no signal that pneumonia or COVID-19 was more severe among the people who did not receive finerenone, nor did finerenone treatment appear to affect pneumonia recovery.
 

Analysis based on adverse events reports

These secondary analyses are far from definitive. The authors relied on pneumonia and COVID-19 being reported as adverse events. Each investigator diagnosed pneumonia at their discretion, and the trials did not specify diagnostic criteria. The authors also acknowledge that testing for COVID-19 was “not widespread” and that one of the two pivotal trials largely ran prior to the onset of the COVID-19 pandemic so that only 6 participants developed COVID-19 symptoms out of more than 5,700 enrolled.

 

 

The authors hypothesize that several actions of finerenone might potentially help mediate an effect on pneumonia and COVID-19: improvements in pulmonary inflammation and fibrosis, upregulation of expression of angiotensin converting enzyme 2, and amelioration of right heart pressure and pulmonary congestion. Also, antagonizing the mineralocorticoid receptor on monocytes and macrophages may block macrophage infiltration and accumulation of active macrophages, which can mediate the pulmonary tissue damage caused by COVID-19.

The FIDELIO-DKD and FIGARO-DKD trials and the FIDELITY combined database were sponsored by Bayer, the company that markets finerenone (Kerendia). Dr. Pitt has received personal fees from Bayer and personal fees and stock options from numerous other companies. Several coauthors reported having a financial relationship with Bayer, as well as with other companies.

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

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The nonsteroidal mineralocorticoid receptor antagonist finerenone (Kerendia) unexpectedly showed that it might protect against incident infective pneumonia and COVID-19. The finding was based on secondary analyses run on more than 13,000 people enrolled in the two pivotal trials for finerenone.

Finerenone was approved by the Food and Drug Administration in 2021 for slowing progressive renal dysfunction and preventing cardiovascular events in adults with type 2 diabetes and chronic kidney disease (CKD).
 

‘Striking reduction in the risk of pneumonia’

The “striking reduction in risk of pneumonia” in a new analysis suggests that “the propagation of pulmonary infection into lobar or bronchial consolidation may be reduced by finerenone,” write Bertram Pitt, MD, and coauthors in a report published on October 26 in JAMA Network Open.

They also suggest that if further studies confirm that finerenone treatment reduces complications from pneumonia and COVID-19, it would have “significant medical implications,” especially because of the limited treatment options now available for complications from COVID-19.

The new analyses used the FIDELITY dataset, a prespecified merging of results from the FIDELIO-DKD and FIGARO-DKD trials, which together enrolled 13,026 people with type 2 diabetes and CKD, as determined on the basis of the patients’ having a urine albumin-to-creatinine ratio of at least 30 mg/g.

The primary outcomes of these trials showed that treatment with finerenone led to significant slowing of the progression of CKD and a significant reduction in the incidence of cardiovascular events, compared with placebo during median follow-up of 3 years.

The new, secondary analyses focused on the 6.0% of participants in whom there was evidence of pneumonia and the 1.6% in whom there was evidence of having COVID-19. Pneumonia was the most common serious adverse event in the two trials, a finding consistent with the documented risk for pneumonia faced by people with CKD.
 

Finerenone linked with a 29% relative reduction in pneumonia

When analyzed by treatment, the incidence of pneumonia was 4.7% among those who received finerenone and 6.7% among those who received placebo. This translated into a significant relative risk reduction of 29% associated with finerenone treatment.

Analysis of COVID-19 adverse events showed a 1.3% incidence among those who received finerenone and a 1.8% incidence among those in the placebo group, which translated into a significant 27% relative risk reduction linked with finerenone treatment.

In contrast, the data showed no reduced incidence of several other respiratory infections among the finerenone recipients, including nasopharyngitis, bronchitis, and influenza. The data also showed no signal that pneumonia or COVID-19 was more severe among the people who did not receive finerenone, nor did finerenone treatment appear to affect pneumonia recovery.
 

Analysis based on adverse events reports

These secondary analyses are far from definitive. The authors relied on pneumonia and COVID-19 being reported as adverse events. Each investigator diagnosed pneumonia at their discretion, and the trials did not specify diagnostic criteria. The authors also acknowledge that testing for COVID-19 was “not widespread” and that one of the two pivotal trials largely ran prior to the onset of the COVID-19 pandemic so that only 6 participants developed COVID-19 symptoms out of more than 5,700 enrolled.

 

 

The authors hypothesize that several actions of finerenone might potentially help mediate an effect on pneumonia and COVID-19: improvements in pulmonary inflammation and fibrosis, upregulation of expression of angiotensin converting enzyme 2, and amelioration of right heart pressure and pulmonary congestion. Also, antagonizing the mineralocorticoid receptor on monocytes and macrophages may block macrophage infiltration and accumulation of active macrophages, which can mediate the pulmonary tissue damage caused by COVID-19.

The FIDELIO-DKD and FIGARO-DKD trials and the FIDELITY combined database were sponsored by Bayer, the company that markets finerenone (Kerendia). Dr. Pitt has received personal fees from Bayer and personal fees and stock options from numerous other companies. Several coauthors reported having a financial relationship with Bayer, as well as with other companies.

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

The nonsteroidal mineralocorticoid receptor antagonist finerenone (Kerendia) unexpectedly showed that it might protect against incident infective pneumonia and COVID-19. The finding was based on secondary analyses run on more than 13,000 people enrolled in the two pivotal trials for finerenone.

Finerenone was approved by the Food and Drug Administration in 2021 for slowing progressive renal dysfunction and preventing cardiovascular events in adults with type 2 diabetes and chronic kidney disease (CKD).
 

‘Striking reduction in the risk of pneumonia’

The “striking reduction in risk of pneumonia” in a new analysis suggests that “the propagation of pulmonary infection into lobar or bronchial consolidation may be reduced by finerenone,” write Bertram Pitt, MD, and coauthors in a report published on October 26 in JAMA Network Open.

They also suggest that if further studies confirm that finerenone treatment reduces complications from pneumonia and COVID-19, it would have “significant medical implications,” especially because of the limited treatment options now available for complications from COVID-19.

The new analyses used the FIDELITY dataset, a prespecified merging of results from the FIDELIO-DKD and FIGARO-DKD trials, which together enrolled 13,026 people with type 2 diabetes and CKD, as determined on the basis of the patients’ having a urine albumin-to-creatinine ratio of at least 30 mg/g.

The primary outcomes of these trials showed that treatment with finerenone led to significant slowing of the progression of CKD and a significant reduction in the incidence of cardiovascular events, compared with placebo during median follow-up of 3 years.

The new, secondary analyses focused on the 6.0% of participants in whom there was evidence of pneumonia and the 1.6% in whom there was evidence of having COVID-19. Pneumonia was the most common serious adverse event in the two trials, a finding consistent with the documented risk for pneumonia faced by people with CKD.
 

Finerenone linked with a 29% relative reduction in pneumonia

When analyzed by treatment, the incidence of pneumonia was 4.7% among those who received finerenone and 6.7% among those who received placebo. This translated into a significant relative risk reduction of 29% associated with finerenone treatment.

Analysis of COVID-19 adverse events showed a 1.3% incidence among those who received finerenone and a 1.8% incidence among those in the placebo group, which translated into a significant 27% relative risk reduction linked with finerenone treatment.

In contrast, the data showed no reduced incidence of several other respiratory infections among the finerenone recipients, including nasopharyngitis, bronchitis, and influenza. The data also showed no signal that pneumonia or COVID-19 was more severe among the people who did not receive finerenone, nor did finerenone treatment appear to affect pneumonia recovery.
 

Analysis based on adverse events reports

These secondary analyses are far from definitive. The authors relied on pneumonia and COVID-19 being reported as adverse events. Each investigator diagnosed pneumonia at their discretion, and the trials did not specify diagnostic criteria. The authors also acknowledge that testing for COVID-19 was “not widespread” and that one of the two pivotal trials largely ran prior to the onset of the COVID-19 pandemic so that only 6 participants developed COVID-19 symptoms out of more than 5,700 enrolled.

 

 

The authors hypothesize that several actions of finerenone might potentially help mediate an effect on pneumonia and COVID-19: improvements in pulmonary inflammation and fibrosis, upregulation of expression of angiotensin converting enzyme 2, and amelioration of right heart pressure and pulmonary congestion. Also, antagonizing the mineralocorticoid receptor on monocytes and macrophages may block macrophage infiltration and accumulation of active macrophages, which can mediate the pulmonary tissue damage caused by COVID-19.

The FIDELIO-DKD and FIGARO-DKD trials and the FIDELITY combined database were sponsored by Bayer, the company that markets finerenone (Kerendia). Dr. Pitt has received personal fees from Bayer and personal fees and stock options from numerous other companies. Several coauthors reported having a financial relationship with Bayer, as well as with other companies.

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

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Diabetes becoming less potent risk factor for CVD events

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Changed
Thu, 12/15/2022 - 14:24

 

Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

Dr. Calvin Ke

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Dr. Prakash Deedwania

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

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Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

Dr. Calvin Ke

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Dr. Prakash Deedwania

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

 

Diabetes persists as a risk factor for cardiovascular events, but where it once meant the same risk of heart attack or stroke as cardiovascular disease itself, a large Canadian population study reports that’s no longer the case. Thanks to advances in diabetes management over the past quarter century, diabetes is no longer considered equivalent to CVD as a risk factor for cardiovascular events, researchers from the University of Toronto reported.

The retrospective, population-based study used administrative data from Ontario’s provincial universal health care system. The researchers created five population-based cohorts of adults at 5-year intervals from 1994 to 2014, consisting of 1.87 million adults in the first cohort and 1.5 million in the last. In that 20-year span, the prevalence of diabetes in this population tripled, from 3.1% to 9%.

“In the last 25 years we’ve seen wholesale changes in the way people approach diabetes,” lead study author Calvin Ke, MD, PhD, an endocrinologist and assistant professor at the University of Toronto, said in an interview. “Part of the findings show that diabetes and cardiovascular disease were equivalent for risk of cardiovascular events in 1994, but by 2014 that was not the case.”

Dr. Calvin Ke

However, Dr. Ke added, “Diabetes is still a very strong cardiovascular risk factor.”

The investigators for the study, reported as a research letter in JAMA, analyzed the risk of cardiovascular events in four subgroups: those who had both diabetes and CVD, CVD only, diabetes only, and no CVD or diabetes.

Between 1994 and 2014, the cardiovascular event rates declined significantly among people with diabetes alone, compared with people with no disease: from 28.4 to 12.7 per 1,000 person-years, or an absolute risk increase (ARI) of 4.4% and a relative risk (RR) more than double (2.06), in 1994 to 14 vs. 8 per 1,000 person-years, and an ARI of 2% and RR less than double (1.58) 20 years later.

Among people with CVD only, those values shifted from 36.1 per 1,000 person-years, ARI of 5.1% and RR of 2.16 in 1994 to 23.9, ARI of 3.7% and RR still more than double (2.06) in 2014.

People with both CVD and diabetes had the highest CVD event rates across all 5-year cohorts: 74 per 1,000 person-years, ARI of 12% and RR almost four times greater (3.81) in 1994 than people with no disease. By 2014, the ARI in this group was 7.6% and the RR 3.10.

The investigators calculated that event rates from 1994 to 2014 declined across all four subgroups, with rate ratios of 0.49 for diabetes only, 0.66 for CVD only, 0.60 for both diabetes and CVD, and 0.63 for neither disease.

Shift in practice

The study noted that the shift in diabetes as a risk factor for heart attack and stroke is “a change that likely reflects the use of modern, multifactorial approaches to diabetes.”

“A number of changes have occurred in practice that really focus on this idea of a multifactorial approach to diabetes: more aggressive management of blood sugar, blood pressure, and lipids,” Dr. Ke said. “We know from the statin trials that statins can reduce the risk of heart disease significantly, and the use of statins increased from 28.4% in 1999 to 56.3% in 2018 in the United States,” Dr. Ke said. He added that statin use in Canada in adults ages 40 and older went from 1.2% in 1994 to 58.4% in 2010-2015. Use of ACE inhibitors and angiotensin receptor blockers for hypertension followed similar trends, contributing further to reducing risks for heart attack and stroke, Dr. Ke said.

Dr. Ke also noted that the evolution of guidelines and advances in treatments for both CVD and diabetes since 1994 have contributed to improving risks for people with diabetes. SGLT2 inhibitors have been linked to a 2%-6% reduction in hemoglobin A1c, he said. “All of these factors combined have had a major effect on the reduced risk of cardiovascular events.”

Dr. Prakash Deedwania

Prakash Deedwania, MD, professor at the University of California, San Francisco, Fresno, said that this study confirms a trend that others have reported regarding the risk of CVD in diabetes. The large database covering millions of adults is a study strength, he said.

And the findings, Dr. Deedwania added, underscore what’s been published in clinical guidelines, notably the American Heart Association scientific statement for managing CVD risk in patients with diabetes. “This means that, from observations made 20-plus years ago, when most people were not being treated for diabetes or heart disease, the pendulum has swung,” he said.

However, he added, “The authors state clearly that it does not mean that diabetes is not associated with a higher risk of cardiovascular events; it just means it is no longer equivalent to CVD.”

Managing diabetes continues to be “particularly important,” Dr. Deedwania said, because the prevalence of diabetes continues to rise. “This is a phenomenal risk, and it emphasizes that, to really conquer or control diabetes, we should make every effort to prevent diabetes,” he said.

Dr. Ke and Dr. Deedwania have no relevant financial relationships to disclose.

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