Heart failure & cardiomyopathiesMeta-analysis

Semaglutide and NYHA Functional Class in Obesity-Related Heart Failure With Preserved Ejection Fraction

J Am Coll CardiolPublished

  • Prespecified pooled analysis of the STEP-HFpEF and STEP-HFpEF DM randomised trials
  • pooled data from 2 international randomised trials
  • double-blind

Authors' conclusion

In patients with obesity-related HFpEF, fewer semaglutide-treated than placebo-treated patients had a deterioration, and more had an improvement, in NYHA functional class at 52 weeks.

Study context

Population
Patients with obesity-related heart failure with preserved ejection fraction (HFpEF)
Participants
1,145 patients · 2 RCTs
Comparison
Semaglutide 2.4 mg once weekly vs placebo
Outcome
Change in NYHA functional class
Follow-up
Baseline to 52 weeks

Pooled result

As reported in the abstract

NYHA functional class · 52 weeks

Semaglutide

32.6%

Improvement · Deterioration 2.09%

Placebo

21.5%

Improvement · Deterioration 5.24%

Semaglutide vs PlaceboOdds ratio (95% CI)P value
improvement
2.20(1.62–2.99)
P < 0.001
deterioration
0.36(0.19–0.70)
P = 0.003

Further pooled results

Outcomedifference (points) (95% CI)
KCCQ-CSS, by baseline NYHA class (subgroup) — Semaglutide vs Placebo · NYHA III/IV10.5 (6.6–14.4)
KCCQ-CSS, by baseline NYHA class (subgroup) — Semaglutide vs Placebo · NYHA II6.0 (3.4–8.6)
Outcomedifference (95% CI)
Bodyweight, by baseline NYHA class (subgroup) — Semaglutide vs Placebo · NYHA II−8.4% (−9.4% to −7.3%)
Bodyweight, by baseline NYHA class (subgroup) — Semaglutide vs Placebo · NYHA III/IV−8.3% (−9.9% to −6.8%)
  • KCCQ-CSS, by baseline NYHA class (subgroup): P interaction = 0.06
  • Bodyweight, by baseline NYHA class (subgroup): P interaction = 0.96

6MWD, hierarchical composite endpoint, CRP, NT-proBNP, by baseline NYHA class

Semaglutide consistently improved 6MWD and the hierarchical composite endpoint and reduced CRP and NT-proBNP across NYHA class categories
all P interactions = NS

Original publication

Semaglutide and NYHA Functional Class in Obesity-Related Heart Failure With Preserved Ejection Fraction. J Am Coll Cardiol. Published 23 June 2024. doi:10.1016/j.jacc.2024.04.038

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