Heart failure & cardiomyopathiesSecondary analysis

Early Changes in Estimated Glomerular Filtration Rate Post-Initiation of Empagliflozin in EMPEROR-Preserved

Eur J Heart FailPublished

  • Secondary analysis of the EMPEROR-Preserved randomised trial
  • landmark analysis

Authors' conclusion

Such small eGFR decrease was not associated with adverse cardiovascular outcomes with empagliflozin. In contrast, eGFR decrease was associated with poor cardiovascular outcomes with placebo.

Study context

Population
Patients with heart failure with preserved ejection fraction (HFpEF) enrolled in EMPEROR-Preserved97.5% with initial eGFR change
Participants
5,836 patients
Comparison
Empagliflozin vs placebo, by early eGFR change
Primary endpoint
Composite of:
  • HF hospitalization or CV death (primary outcome)
  • By early eGFR change levels
Follow-up
After week 4

Primary result

eGFR change from baseline to week 4 · week 4

Mean eGFR change

−3.2 ml/min/1.73 m²

As reported in the abstract

Further findings

OutcomeHR (95% CI)
Outcomes after week 4, placebo: tertile with most profound eGFR decrease (≥5.1%) vs tertile with eGFR increase — eGFR decrease ≥5.1% vs eGFR increase · primary outcome1.46 (1.17–1.82)
Outcomes after week 4, placebo: tertile with most profound eGFR decrease (≥5.1%) vs tertile with eGFR increase — eGFR decrease ≥5.1% vs eGFR increase · CV mortality1.38 (1.01–1.89)
Outcomes after week 4, placebo: tertile with most profound eGFR decrease (≥5.1%) vs tertile with eGFR increase — eGFR decrease ≥5.1% vs eGFR increase · sustained ≥50% eGFR decrease or ESRD2.20 (1.20–4.04)

Outcomes after week 4 by eGFR change tertile, empagliflozin

Risk of primary outcome (HF hospitalization or CV death), CV and all-cause mortality, sustained ≥50% eGFR decrease or end-stage renal disease (ESRD) did not differ by eGFR change levels

Original publication

Early Changes in Estimated Glomerular Filtration Rate Post-Initiation of Empagliflozin in EMPEROR-Preserved. Eur J Heart Fail. Published 21 January 2024. doi:10.1002/ejhf.3136

Summarised from the published abstract; every number is checked against it