Heart failure & cardiomyopathiesMeta-analysis

Sex differences in pharmacological treatment of heart failure: a meta-analysis of randomized trials

Eur Heart JPublished

  • Systematic review and meta-analysis of randomised trials
  • random-effects
  • meta-regression

Systematic search up to 21 March 2025; 5749 publications screened

Authors' conclusion

These findings suggest that pharmacological efficacy in HF does not differ by sex and that historical female underrepresentation in trials is unlikely to have masked important sex differences.

Study context

Population
Randomized controlled trials (RCTs) (≥100 patients) of pharmacological heart failure (HF) treatments vs placebo or usual care with clinical events as primary outcome
Participants
292,027 participants · 139 RCTs
Comparison
Women vs Men
Outcome
Sex differences in the primary efficacy endpoint (relative effect measures, REM)

Pooled result

As reported in the abstract

Sex difference in treatment efficacy (delta ln[REM])

Delta ln[relative effect measures (REM)]

0.00

95% CI −0.04 to 0.03

P = 0.85

Further pooled results

Meta-regression: proportion of women vs sex differences in REM, overall efficacy, other clinical outcomes

No association with sex differences in REM (78 RCTs)
P = 0.25
No association with overall efficacy (139 RCTs)
P = 0.24
No association with other clinical outcomes

Original publication

Sex differences in pharmacological treatment of heart failure: a meta-analysis of randomized trials. Eur Heart J. Published 28 April 2026. doi:10.1093/eurheartj/ehag311

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