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Heart FailureNovember 2019Summary reviewed May 2026

A Diabetes Pill Cut Heart Failure Deaths and Hospital Visits by 26%

DAPA-HF tested dapagliflozin, a once-daily diabetes pill, in 4,744 people with heart failure and a weakened pumping heart (reduced ejection fraction). The trial was stopped early after the drug clearly cut hospitalizations and deaths from heart failure.

What the trial was testing

The DAPA-HF enrolled 4,744 patients with heart failure. The study was sponsored by AstraZeneca and tracked outcomes across the full group of patients who matched the trial's eligibility profile.

It was a large trial designed to confirm whether the treatment works well enough for wider use. Trials at this stage are designed to produce evidence regulators and physicians can act on — not just observations to follow up later.

What the results showed

26% lower risk of worsening heart failure or cardiovascular death.

New England Journal of Medicine · 2019 · NCT03036124

These findings — that of worsening heart failure or cardiovascular death in heart failure with reduced ejection fraction — were published in the New England Journal of Medicine and represent the headline result of the study.

Researchers tracked outcomes across 4,744 patients enrolled in the trial. The result was consistent enough across the group that the team felt confident reporting it.

What this means for patients

For patients with heart failure, this result changes the calculus on what to ask their care team about. Whether it changes day-to-day care depends on factors like disease subtype, prior treatments, and where the patient is in their care journey.

What you can do now

Dapagliflozin (Farxiga) is FDA-approved for heart failure and available now, regardless of diabetes status. It is now part of standard care for heart failure with reduced ejection fraction. Common side effects include urinary tract infections and yeast infections. Ask your cardiologist whether you should be on it.

Eligibility for the treatments mentioned above depends on specific test results and clinical history. Bring this summary, the trial name, and your most recent labs or pathology report to your next visit.

Open heart failure trials

RecruitingLarge-scale testing

Effect at 3 Months of Early Empagliflozin Initiation in Cardiogenic Shock Patients on Mortality, Rehospitalization, Left Ventricular Ejection Fraction and Renal Function.

Long term prognosis of cardiogenic shock is related to the resolution of haemodynamic failure, associated visceral failure and the recovery of an adequate myocardial function. In the immediate aftermath of cardiogenic shock, after catecholamines weaning, there are no recommendations on cardiovascular treatments that would improve this long term prognosis. Indeed, the standard cardiovascular treatments such as inhibitors of the renin-angiotensin and aldosterone system and beta-blockers have hypotensive and negative inotropic effects and may worsen the renal function. In practice, given their side effects, they are not prescribed in the immediate aftermath of cardiogenic shock. Sodium-glucose co-transporter 2 (iSGLT2) inhibitors are now an integral part of the drug management of chronic heart failure and the EMPULSE-HF trial has just demonstrated a benefit in acute heart failure (PMID: 35228754). Several pivotal clinical trials have demonstrated a significant effect of iSGLT2 on the survival and the risk of re hospitalisation for heart failure (PMID: 32865377, 31535829, 33200892). Our hypothesis is that, in patients in cardiogenic shock, early treatment with Empaglifozin in addition to the standard management could reduce mortality and morbidity (death, transplantation/LVAD and rehospitalisation for heart failure) and improve myocardial function at 12 weeks, compared with standard management alone.

Ars-Laquenexy, France +7 more
RecruitingInterventional study

Cohort Study of Chronic Heart Failure

The goal of this observational study is to learn about the influencing factors of chronic heart failure prognosis in heart failure patients. The main question it aims to answer is that what are the influencing factors of clinical outcomes in chronic heart failure. Participants will be collected multiple omics data such as phenotype group, environmental exposure group, intestinal microbiome, genome, metabolome, and noninvasive biomarkers.

Taizhou, Jiangsu, China