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Effect of sacubitril/valsartan vs. enalapril on changes in heart failure therapies over time: the PARADIGM-HF trial.

AIMS: Sacubitril/valsartan improves morbidity and mortality in patients with heart failure and reduced ejection fraction (HFrEF). Whether initiation of sacubitril/valsartan limits the use and dosing of other elements of guideline-directed medical therapy for HFrEF is unknown. We examined the effects of sacubitril/valsartan, compared with enalapril, on beta-blocker and mineralocorticoid receptor antagonist (MRA) use and dosing in a large randomized clinical trial. METHODS AND RESULTS: Patients with full data on medication use were included. We examined beta-blocker and MRA use in patients randomized to sacubitril/valsartan vs. enalapril through 12-month follow-up. New initiations and discontinuations of beta-blocker and MRA were compared between treatment groups. Overall, 8398 (99.9%) had full medication and dose data at baseline. Baseline use of beta-blocker and MRA at any dose was 87% and 56%, respectively. Mean doses of beta-blocker and MRA were similar between treatment groups at baseline and at 6-month and 12-month follow-up. New initiations through 12-month follow-up were infrequent and similar in the sacubitril/valsartan and enalapril groups for beta-blockers [37 (9.0%) vs. 42 (10.2%), P = 0.56] and MRA [127 (7.6%) vs. 143 (9.2%), P = 0.10]. Among patients on MRA therapy at baseline, there were fewer MRA discontinuations in patients on sacubitril/valsartan as compared with enalapril at 12 months [125 (6.2%) vs. 187 (9.0%), P = 0.001]. Discontinuations of beta-blockers were not significantly different between groups in follow-up (2.2% vs. 2.6%, P = 0.26). CONCLUSIONS: Initiation of sacubitril/valsartan, even when titrated to target dose, did not appear to lead to greater discontinuation or dose down-titration of other key guideline-directed medical therapies, and was associated with fewer discontinuations of MRA. Use of sacubitril/valsartan (when compared with enalapril) may promote sustained MRA use in follow-up.

Authors: Bhatt, Ankeet S; Vaduganathan, Muthiah; Claggett, Brian L; Liu, Jiankang; Packer, Milton; Desai, Akshay S; Lefkowitz, Martin P; Rouleau, Jean L; Shi, Victor C; Zile, Michael R; Swedberg, Karl; Vardeny, Orly; McMurray, John J V; Solomon, Scott D

Eur J Heart Fail. 2021 Sep;23(9):1518-1524. doi: 10.1002/ejhf.2259. Epub 2021 Jun 21.

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