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Article Dans Une Revue JACC: Heart Failure Année : 2019

MRAs in Elderly HF Patients: Individual Patient-Data Meta-Analysis of RALES, EMPHASIS-HF, and TOPCAT

Résumé

OBJECTIVES:This study sought to assess the effect of MRA treatment (vs. placebo) in older patients (≥75 years of age) compared with younger patients (<75 years of age) with heart failure (HF).BACKGROUND:Mineralocorticoid receptor antagonists (MRAs) have been shown to reduce morbidity and mortality in patients with HF with reduced ejection fraction (HFrEF) and in a subset of patients with HF with preserved EF (HFpEF). Notwithstanding, MRAs are underused, especially in the elderly. Pooling the individual patient data (IPD) provided more statistical power with which to assess the efficacy and safety of MRA treatment in this subpopulation.METHODS:An IPD meta-analysis was performed using Cox proportional hazards models stratified by trial. A total of 1,756 patients (853 randomized to placebo and 903 to MRA) ≥75 years of age, along with 4,411 patients (2,242 randomized to placebo and 2,169 to MRA) <75 years of age were included. The primary outcome was a composite of death from cardiovascular causes or hospitalization for HF.RESULTS:The treatment groups were well balanced. Patients ≥75 years of age or older and those 80 years of age, 61% were male, 30% had diabetes, and the mean estimated glomerular filtration rate 59 ml/min. The primary outcome occurred in 331 patients (38.8%) in the placebo group versus 281 (31.1%) in the MRA group (hazard ratio: 0.74; 95% confidence interval: 0.63 to 0.86; p < 0.001; and the heterogeneity p value [heterogeneity p = Cochran's Q p value of treatment effect by study interaction] was 0.52). Cardiovascular death and all-cause death were also reduced by MRAs without significant between-trial or age (younger vs. older) heterogeneity. Worsening renal function and hyperkalemia occurred more frequently in patients taking MRAs (vs. placebo). Compared to younger patients, worsening renal function (but not hyperkalemia) was found more frequently in the elderly.CONCLUSIONS:MRAs reduced morbidity and mortality in elderly patients with HF, a beneficial effect that is more marked in patients with HFrEF but homogenous across HFrEF and HFpEF. Implementation of measures that increase MRA treatment in this population are warranted.Copyright © 2019 American College of Cardiology Foundation. Published by Elsevier Inc. All rights reserved.
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hal-02515938 , version 1 (21-07-2022)

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Paternité - Pas d'utilisation commerciale

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Joao Pedro Ferreira, Xavier Rossello, Romain Eschalier, John J.V. Mcmurray, Stuart Pocock, et al.. MRAs in Elderly HF Patients: Individual Patient-Data Meta-Analysis of RALES, EMPHASIS-HF, and TOPCAT. JACC: Heart Failure, 2019, 7 (12), pp.1012-1021. ⟨10.1016/j.jchf.2019.08.017⟩. ⟨hal-02515938⟩
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