The purpose of this study was 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 chronic Chagas' cardiomyopathy (CCC).
Who can participate
Age range
18 Years – 100 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion criteria
. LVEF ≤ 40% within 12 months prior to Visit 1 made by any local measurement using echocardiography, multiple gated acquisition scan (MUGA), computerized tomography (CT) scanning, magnetic resonance imaging (MRI), or ventricular angiography, provided no subsequent measurement above 40% AND
. NT-proBNP ≥ 600 pg/mL (or BNP ≥ 150 pg/mL) at Visit 1 OR
. NT-proBNP ≥ 400 pg/mL (or BNP ≥ 100 pg/mL) at Visit 1 and a hospitalization for HF within the last 12 months
Exclusion criteria
. already on list for a heart transplantation
. with current indication of left ventricular assist device, or cardiac resynchronization therapy (CRT)
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Hierarchical Composite Endpoint Composed of Time to Cardiovascular (CV) Death, Time to First Heart Failure (HF) Hospitalization, and Relative Change in NT-proBNP From Baseline to Week 12
Timeframe: Total follow-up time up to approximately 36 months
2
Percentage of Participants Who Died From Cardiovascular Causes
Timeframe: Total follow up time up to approximately 36 months
3
Percentage of Participants With First Hospitalization for Worsening Heart Failure
Timeframe: Total follow up time up to approximately 36 months
4
Change From Baseline to Week 12 in NT-proBNP Levels
. Heart failure where, in the Investigator's judgement, there is a possible alternative primary etiology e.g., due to coronary artery disease, valve disease, congenital heart disease or other causes.
. Untreated arrhythmia or serious conduction disease e.g., bradyarrhythmias, atrial fibrillation with rapid ventricular response, second or third degree atrioventricular block, etc.
. Primary uncorrected valvar pathology like moderate to severe aortic stenosis, mitral stenosis and primary mitral regurgitation
. Planned organ transplantation (or in listing for transplantation), planned cardiac or other major surgery (including ventricular assist device implantation)