Effectiveness of vericiguat in heart failure across ejection fraction phenotypes: a comprehensive meta-analytic trial sequential analysis and meta-regression analysis.

Background: Heart failure (HF) remains a global health challenge, with distinct phenotypes - heart failure with reduced ejection fraction (HFrEF ≤40%) and heart failure with preserved ejection fraction (HFpEF ≥50%) - requiring tailored therapies. Vericiguat, a soluble guanylate cyclase stimulator, targets the nitric oxide -soluble guanylate cyclase-cyclic guanosine monophosphate pathway to reduce cardiac stress, showing promise in HFrEF but with unclear efficacy in HFpEF. This meta-analysis evaluates Vericiguat's effectiveness across HF phenotypes using trial sequential analysis (TSA) and meta-regression. Methods: Following Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines, we included eight randomized controlled trials (17,381 patients) comparing Vericiguat to control in HFrEF and HFpEF patients. Outcomes assessed were hospitalization for HF, all-cause mortality, cardiovascular mortality, and the composite endpoint (cardiovascular death or first hospitalization). Random-effects models calculated pooled risk ratio (RR). TSA controlled for type I/II errors, and meta-regression explored covariates (age, sex, NT-proBNP, HF subgroup). Sensitivity analyses assessed robustness. Results: Vericiguat reduced hospitalization for HF (RR: 0.90, 95% confidence interval [CI]: 0.82-0.98, Conclusions: Vericiguat modestly reduces hospitalization and composite outcomes in HF, particularly HFrEF, but lacks mortality benefits. Larger, phenotype-specific trials are needed to confirm efficacy, especially in HFpEF, to refine Vericiguat's role in HF management.