Sacubitril/Valsartan Reduces the Risk of All-Cause Dementia in Patients with Heart Failure: A Systematic Review and Meta-Analysis.

Background: Sacubitril/valsartan, an angiotensin receptor neprilysin inhibitor (ARNI), has become a cornerstone therapy for heart failure (HF) since its approval over a decade ago. However, concerns have emerged about potential cognitive risks, as neprilysin inhibition may contribute to the accumulation of amyloid-beta (Aβ) in the brain-a hallmark of Alzheimer's disease, the most common form of dementia.

Objective: Given the already elevated risk of dementia in patients with HF and the widespread use of sacubitril/valsartan, this meta-analysis aimed to evaluate whether its use is associated with an increased risk of all-cause dementia in HF populations.

Methods: A systematic literature search was conducted on 23 March 2025, to identify eligible studies comparing the risk of dementia in patients receiving sacubitril/valsartan versus those receiving placebo, no treatment, or other HF medications. Risk ratios (RRs) and 95% confidence intervals (CIs) were pooled using a random-effects model.

Results: Six studies, comprising 101,074 participants and published between 2017 and 2024, were included in the meta-analysis. Treatment with sacubitril/valsartan was associated with a significant 15% reduction in the risk of all-cause dementia (RR = 0.85; 95% CI: 0.74-0.98; p = 0.02). Leave-one-out sensitivity and subgroup analyses confirmed the robustness of the findings.

Conclusions: This meta-analysis suggests that sacubitril/valsartan is associated with a reduced risk of dementia in patients with HF, helping to alleviate previous concerns about potential cognitive adverse effects. These findings support the continued use of sacubitril/valsartan as a foundational therapy in this high-risk population.