Angiotensin-Neprilysin inhibition in heart failure with preserved ejection fraction: A meta-analysis of randomized

Jishanth Mattumpuram1, Muhammad Talha Maniya2, Craig Albert Luke Fernandes3

  • 1Division of Cardiology, Department of Medicine, University of Louisville School of Medicine, Louisville, KY, USA.

PubMed

Insights

Sacubitril/valsartan therapy in heart failure with preserved ejection fraction (HFpEF) reduced NT-proBNP levels and improved quality of life. While not reaching statistical significance, trends suggested potential benefits in major HF outcomes and renal function protection.

Area of Science:

  • Cardiology
  • Pharmacology
  • Clinical Trials

Background:

  • Heart failure with preserved ejection fraction (HFpEF) remains a significant clinical challenge with ongoing debates regarding optimal treatment strategies.
  • The efficacy of sacubitril/valsartan, a neprilysin inhibitor and angiotensin receptor blocker combination, in HFpEF is an area of active investigation.

Purpose of the Study:

  • To systematically evaluate the effects of sacubitril/valsartan on clinical outcomes and biomarkers in patients with HFpEF.
  • To synthesize evidence from randomized controlled trials to inform treatment guidelines and clinical decision-making for HFpEF management.

Main Methods:

  • A comprehensive literature search of Medline was conducted from inception through May 2023 to identify relevant randomized controlled trials.
  • Meta-analysis techniques, including pooling of geometric mean ratios (gMR) and weighted mean differences (WMD) for continuous outcomes, and risk ratios (RR) for dichotomous outcomes, were employed with 95% confidence intervals (CI).

Main Results:

  • Four trials involving 8,129 patients were analyzed. Sacubitril/valsartan significantly reduced NT-proBNP levels (gMR: 0.84) and improved Kansas City Cardiomyopathy Questionnaire (KCCQ) scores (WMD: 0.85).
  • No statistically significant differences were observed in HF hospitalizations, cardiovascular mortality, or all-cause mortality. A trend towards improvement in NYHA class was noted.
  • Patients receiving sacubitril/valsartan showed a reduced risk of a ≥50% decline in estimated glomerular filtration rate (eGFR) (RR: 0.60), indicating a potential renal protective effect.

Conclusions:

  • Pooled data indicate that sacubitril/valsartan effectively lowers natriuretic peptide levels and enhances quality of life in patients with HFpEF.
  • While major clinical endpoints did not reach statistical significance, a numerical trend towards improved HF outcomes and evidence of renal protection suggest potential benefits of sacubitril/valsartan therapy in this population.
Abstract

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