Initiation of sacubitril/valsartan shortly after hospitalisation for acutely decompensated heart failure in patients with newly diagnosed (de novo) heart failure: a subgroup analysis of the TRANSITION study

Aims Sacubitril/valsartan has shown efficacy and tolerability in patients with heart failure (HF) and reduced ejection fraction (HFrEF) in the ambulatory setting (PARADIGM‐HF), and following stabilisation of acutely decompensated HF (ADHF) (PIONEER‐HF and TRANSITION). However, data are lacking for the initiation of sacubitril/valsartan in newly diagnosed (de novo) HFrEF. Here, we assess the tolerability of initiating sacubitril/valsartan following ADHF in TRANSITION subgroups of patients with a de novo vs. prior diagnosis of HFrEF. Methods and results TRANSITION randomised 1002 patients to pre‐ and post‐discharge initiation of sacubitril/valsartan (analysis set n = 991, following exclusions for mis‐randomisation). In this post‐hoc analysis, tolerability to sacubitril/valsartan [proportion of patients achieving target dose (97/103 mg b.i.d.) at 10 weeks post‐randomisation], adverse events (AEs) and serious AEs (SAEs) were compared in de novo (n = 286) and prior HFrEF (n = 705) subgroups. More de novo than prior HFrEF patients achieved target dose at Week 10 (56% vs. 45%; relative risk ratio 1.30, 95% confidence interval 1.12–1.52, P