Objective: Heart failure with preserved ejection fraction (HFpEF) is a prevalent and clinically significant condition characterized by limited treatment options. In this context, the objective of this meta-analysis is to evaluate the effectiveness of sacubitril/valsartan compared to angiotensin-converting enzyme inhibitors (ACEIs) and angiotensin receptor blockers (ARBs) in managing HFpEF.
Methods: A systematic search of relevant studies was conducted in PubMed, Embase, Web of Science, and Cochrane Library. Randomized controlled trials comparing sacubitril/valsartan to ACEIs or ARBs in HFpEF patients were included. Inclusion criteria: LVEF>45%, NYHA II-IV, Sac/Val vs ACEI/ARB, RCTs, treatment duration >3 months, sample size ≥25 per group. Exclusion criteria: Animal studies, unclear/missing data, poor quality, case studies/expert opinions.Hospitalization for heart failure and cardiovascular mortality were the primary outcomes, while the additional results included mortality from all causes, improvement of NYHA class, modifications in NT-proBNP, and with LVEF.
Results: Sacubitril/valsartan substantially reduced heart failure hospitalization rates compared to ACEIs and ARBs, according to a total of six studies involving 5,201 participants (Relative Risk, 0.78; 95% CI, 0.65 to 0.85; P = .001). Nonetheless, there were no significant improvements in mortality due to cardiovascular disease (Relative Risk, 0.94; 95% CI, 0.79-1.12; P = .563). Sacubitril/valsartan did not affect total mortality from all causes significantly (Relative Risk, 0.95; 95% CI, 0.84-1.09; P = .453), but it did enhance NYHA classification (Relative Risk, 1.25; 95% CI, 1.10-1.43; P = .001). NT-proBNP levels decreased substantially (Weighted Mean Difference, -266.67; 95% CI, -525.86 to -7.47), whereas there had been little major shift in LVEF (Weighted Mean Difference, 1.49; 95% CI, -1.33 to 4.21; P = .342).
Conclusions: Sacubitril/valsartan may provide superior benefits in reducing heart failure hospitalization rates, NT-proBNP levels, and improving NYHA classification in patients with HFpEF compared to ACEIs and ARBs. Sacubitril/valsartan might be considered as a preferred treatment option for HFpEF patients due to its benefits in reducing heart failure hospitalization rates and improving symptom severity.