A Multicenter, Prospective, Randomized, Open-label, Blinded-endpoint, Phase 4 Study to Evaluate the Efficacy and Safety of Sacubitril/Valsartan Compared With Enalapril on Morbidity, Mortality, and NT-proBNP Change in Patients With Chronic Chagas' Cardiomyopathy. The Study is Also Know as Prevention And Reduction of Adverse Outcomes in Chagasic Heart failUre Trial Evaluation (PARACHUTE-HF).

The purpose of this study is to evaluate the effect of sacubitril/valsartan 200 mg BID compared with enalapril 10 mg BID, in addition to conventional heart failure (HF) treatment, in improving a hierarchical composite of cardiovascular (CV) events (i.e. CV death or the occurrence of first HF hospitalization) and causing a greater reduction in n terminal prohormone of brain natriuretic peptide (NT-proBNP, at Week 12 from Baseline) in participants with HF with reduced ejection fraction (HFrEF) caused by CCC.