Effects of angiotensin-neprilysin inhibition in women vs men: Insights from PARAGLIDE-HF.

BACKGROUND: Sub-analyses of key trials suggest a preferential benefit for specific heart failure with preserved ejection fraction (HFpEF) therapies in women. This work investigated treatment effects between women and men in the PARAGLIDE-HF (Prospective comparison of ARNI with ARB Given following stabiLization In DEcompensated HFpEF) trial. METHODS: In this prespecified subgroup analysis, we examined outcomes according to sex in the PARAGLIDE-HF trial. The primary endpoint was time-average proportional change in amino terminal pro-B type natriuretic peptide (NT-proBNP) from baseline through Weeks 4 and 8. We also examined secondary outcomes and tolerability. RESULTS: Overall, 242 women (52%) and 224 men (48%) were randomized. Women had significantly higher LVEF, worse renal function, and less comorbidities than men. In the overall population, the time-averaged reduction in NT-proBNP was significantly greater for sacubitril/valsartan (sac/val) than valsartan (ratio of change 0.85, 95% CI, 0.73-0.999). When examined according to sex, the time-averaged reduction in NT-proBNP was numerically greater with sac/val in both women (ratio of change = 0.86, 95% CI, 0.69-1.070) and men (ratio of change 0.84, 95% CI, 0.67-1.05) with no differential treatment effect (P interaction = .91). Similarly, the secondary hierarchical endpoint favored sac/val over valsartan in both women and men but was not statistically significant. Study drug dosage levels were similar across women and men and there were no sex-specific differences in the incidence of adverse events. CONCLUSIONS: In patients with mildly reduced or preserved EF >40% and a recent worsening HF event, the efficacy, safety and tolerability of sac/val vs valsartan were similar in both women and men, suggesting consistent effects across appropriately selected patients regardless of sex. Future prospective studies are needed to further evaluate sex-specific differences in treatment response of HFpEF therapies. TRIAL REGISTRATION: Prospective comparison of ARNI with ARB Given following stabiLization In DEcompensated HFpEF; NCT03988634; https://www. CLINICALTRIALS: gov/study/NCT03988634.

Duke Scholars

Author Adrian Felipe Hernandez Medicine, Cardiology

Author Robert John Mentz Medicine, Cardiology

Author Paula Rambarat