Heart failure & cardiomyopathiesMeta-analysis

Body Mass Index and Cardiorenal Outcomes in the EMPEROR-Preserved Trial: Principal Findings and Meta-Analysis with the DELIVER Trial

Eur J Heart FailPublished

  • Secondary analysis of the EMPEROR-Preserved randomised trial, with meta-analysis with DELIVER
  • subgroup analysis by baseline body mass index (BMI)

Authors' conclusion

Empagliflozin treatment resulted in broadly consistent cardiac effects across the range of BMI in patients with HFpEF.

Study context

Population
Patients with heart failure with preserved ejection fraction (HFpEF) in EMPEROR-Preserved, by baseline BMI (<25, 25 to <30, 30 to <35, 35 to <40, ≥40 kg/m²)45% BMI ≥30 kg/m²
Comparison
Empagliflozin vs placebo across baseline BMI categories
Outcome
HHF or CV death

Pooled result

As reported in the abstract

HHF or CV death, by BMI category

Consistent effect of empagliflozin vs placebo across BMI categories, no formal interaction

p trend = 0.19

Further pooled results

Total HHF, by BMI category

No difference in effect across BMI categories
P for trend = 0.19

CV death, by BMI category

No difference in effect across BMI categories
P for trend = 0.20

Estimated glomerular filtration rate (eGFR) slope, by BMI category

Slower decline with empagliflozin regardless of BMI, relative to placebo (range, ml/min/1.73 m²)
1.12-1.71
Interaction
P for trend = 0.85
No overall impact on composite renal endpoint

Weight change difference (empagliflozin vs placebo), lowest to highest BMI category

Difference, kg, lowest to highest BMI category
−0.59, −1.48, −1.54, −0.87, and - 2.67
Interaction
P for trend = 0.016

HHF or CV death, meta-analysis with DELIVER, by BMI category

Consistent effect of SGLT2i vs placebo across BMI categories

Kansas City Cardiomyopathy Questionnaire clinical summary score (KCCQ-CSS), by BMI · 32 weeks

Trend toward greater absolute benefit with empagliflozin at higher BMI
P = 0.08

Original publication

Body Mass Index and Cardiorenal Outcomes in the EMPEROR-Preserved Trial: Principal Findings and Meta-Analysis with the DELIVER Trial. Eur J Heart Fail. Published 1 April 2024. doi:10.1002/ejhf.3221

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