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Published on: May 26, 2022
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.
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.
Background:
The effect of sacubitril/valsartan on patients with heart failure (HF) with preserved ejection fraction (HFpEF) is a topic of ongoing debate.
Methods:
Medline was queried from inception through the last week of May 2023 for randomized studies assessing the effects of sacubitril/valsartan in patients with HFpEF. For continuous outcomes, we pooled either the geometric mean ratios (gMR) or weighted mean difference (WMD) with 95% confidence intervals (CI). For dichotomous outcomes, we pooled Risk ratios (RR) with 95% CI.
Results:
Four trials were included (N=8,129). Compared to the control, sacubitril/valsartan was associated with a reduction in NT-proBNP levels (gMR: 0.84, 95% CI 0.80, 0.88) and improvement in KCCQ score (WMD: 0.85, 95% CI: 0.02, 1.67). We observed no differences for HF hospitalization (RR: 0.90, 95% CI: 0.79, 1.01), cardiovascular mortality (RR: 0.83, 95% CI: 0.52, 1.32), all-cause mortality (RR: 0.99, 95% CI: 0.86-1.13) and improvement (RR: 1.15, 95% CI: 0.93, 1.42) or worsening (RR: 0.92, 95% CI: 0.78, 1.09) of NYHA class between the sacubitril/valsartan and comparator group. Sacubitril/valsartan was generally safe, and patients were less likely to have a ≥50% decline in eGFR compared to control (RR: 0.60, 95% CI: 0.39, 0.92).
Conclusion:
Pooled analysis suggests that sacubitril/valsartan reduces natriuretic peptide levels and improves the quality of life in patients with HFpEF, which may translate into better clinical outcomes as observed by a numerical trend towards improvement in major HF outcomes with sacubitril/valsartan therapy.
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