Effect of Empagliflozin on Heart Failure Outcomes After Acute Myocardial Infarction: Insights From the EMPACT-MI Trial

Apr 6, 2024Circulation

Empagliflozin's impact on heart failure after a heart attack: Results from the EMPACT-MI trial

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Abstract

Empagliflozin reduced the risk of first hospitalization by 22% compared to placebo in patients after acute myocardial infarction.

  • In a trial involving 6,522 patients, 3.6% of those on empagliflozin experienced first heart failure hospitalizations compared to 4.7% on placebo.
  • Empagliflozin was associated with a hazard ratio of 0.77 for first heart failure hospitalization, indicating a statistically significant reduction.
  • Total heart failure hospitalizations were lower in the empagliflozin group, with a rate ratio of 0.67 compared to placebo.
  • The benefits of empagliflozin were consistently observed across various patient subgroups with left ventricular dysfunction or congestion.
  • Patients receiving empagliflozin required fewer new medications for heart failure management after discharge compared to those on placebo.

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Key numbers

23%
Decrease in First Hospitalizations
First hospitalization rate in empagliflozin vs. placebo.
33%
Decrease in Total Hospitalizations
Total hospitalizations in empagliflozin vs. placebo.
138 of 1135
Patients Initiated on Diuretics
Patients started on diuretics after discharge in empagliflozin vs. placebo.

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What this is

  • The EMPACT-MI trial investigated empagliflozin's effects on () outcomes after acute myocardial infarction (MI).
  • 6522 patients at risk for were randomized to receive empagliflozin or placebo within 14 days of MI.
  • Results showed that empagliflozin significantly reduced the risk of first and total hospitalizations.

Essence

  • Empagliflozin reduced the risk of hospitalizations in patients after acute myocardial infarction. The treatment showed consistent benefits across various patient subgroups.

Key takeaways

  • Empagliflozin reduced the risk of first hospitalization by 23% compared to placebo. This was supported by a hazard ratio of 0.77.
  • Total hospitalizations were reduced by 33% with empagliflozin, with a rate ratio of 0.67 compared to placebo. This indicates a significant decrease in overall -related events.
  • Fewer patients in the empagliflozin group required new medications after discharge, suggesting a potential reduction in long-term management needs.

Caveats

  • The primary endpoint of the trial, hospitalization for or all-cause death, was not met, which may limit the interpretation of the secondary findings.
  • The trial design did not include central event adjudication, potentially affecting the reliability of hospitalization reporting.
  • The study was conducted during the COVID-19 pandemic, which may have influenced hospitalization rates and patient management.

Definitions

  • Heart Failure (HF): A condition where the heart cannot pump enough blood to meet the body's needs, often leading to hospitalization.

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