Actively Recruiting
A Phase 3 Randomized, Double-blind, Placebo-controlled Study to Evaluate the Efficacy and Safety of Maridebart Cafraglutide on Mortality and Morbidity in Participants Living With Heart Failure With Preserved or Mildly Reduced Ejection Fraction and Obesity MARITIME-HF
Led by Amgen · Updated on 2026-05-22
5056
Participants Needed
605
Research Sites
117 weeks
Total Duration
On this page
AI-Summary
What this Trial Is About
Researchers are evaluating maridebart cafraglutide as an additional treatment to standard care for people with heart failure who have preserved or mildly reduced ejection fraction and are obese. This phase 3 global trial aims to see if this drug can reduce serious heart failure events like hospitalizations, urgent visits, and cardiovascular deaths, while improving heart failure symptoms. The study is event-driven and includes a double-blind period followed by an open-label extension. Participants will be randomly assigned to receive either maridebart cafraglutide or a placebo, both given by subcutaneous injection. The trial consists of two parts, with Part 1 ending when about 850 primary endpoint events have occurred. The study includes a double-blind treatment period and an open-label extension phase where all participants can receive the drug. During the trial, participants will undergo regular assessments including measurements of heart failure events, cardiovascular deaths, and symptom changes using the Kansas City Cardiomyopathy Questionnaire. Other evaluations include blood pressure, body measurements, kidney function, cholesterol, and blood markers related to heart failure and diabetes. The primary outcome is the time to the first cardiovascular death or heart failure event, measured over up to approximately 35 months. Safety and drug levels will also be monitored throughout the study.
CONDITIONS
Brief Title
Maridebart Cafraglutide in Heart Failure With Preserved or Mildly Reduced Ejection Fraction and Obesity
Who Can Participate
Eligibility Criteria
You may qualify if you...
- Age 18 years or older at the time of informed consent
- Body mass index (BMI) of 30.0 kg/m^2 or higher at randomization
- Heart failure diagnosis for at least 30 days with New York Heart Association (NYHA) Class II-IV at informed consent
- Managed with standard heart failure therapies
- Left ventricular ejection fraction (LVEF) greater than 40% within 12 months before screening
- Elevated NT-proBNP levels
- Must have at least one of the following: structural heart disease within 12 months before screening, hospitalization for decompensated heart failure requiring IV diuretics 30 days to 12 months before randomization, or evidence of elevated filling pressures within 12 months before randomization
You will not qualify if you...
- History within 60 days before or during screening of: type 1 (spontaneous) myocardial infarction, valvular replacement or repair, coronary revascularization, coronary artery bypass graft surgery or other major cardiovascular surgery, or stroke
- Heart failure caused by hypertrophic or infiltrative cardiomyopathy, active myocarditis, constrictive pericarditis, cardiac tamponade, arrhythmogenic right or left ventricular cardiomyopathy/dysplasia, uncorrected primary valvular heart disease, or significant congenital heart disease
- Any lifetime history of left ventricular ejection fraction 40% or less
- Hospitalized with acute decompensated heart failure during screening
- Type 1 diabetes mellitus or any diabetes other than type 2 or gestational diabetes
- For participants with type 2 diabetes: HbA1c above 10.0%, uncontrolled diabetes needing immediate therapy, recent diabetic ketoacidosis or hyperosmolar state, severe hypoglycemia episodes within 6 months, or diabetic retinopathy requiring treatment
- Systolic blood pressure 180 mmHg or higher during screening, or on three or more blood pressure medications with systolic pressure over 160 mmHg
- History of chronic or acute pancreatitis within 180 days before or during screening
- Personal or first-degree family history of medullary thyroid carcinoma or multiple endocrine neoplasia type 2
- Estimated glomerular filtration rate below 20 mL/min/1.73 m^2 or dialysis at screening
- Calcitonin level 50 ng/L or higher at screening
- Acute or chronic hepatitis
- History of unstable major depressive disorder or severe psychiatric disorder within 2 years before or during screening, lifetime history of suicide attempt, or recent non-suicidal self-injury
- Any other condition that may prevent following the protocol or completing the trial
- Use of glucagon-like peptide 1 receptor agonists, glucose-dependent insulinotropic polypeptide agonists or antagonists, or amylin analogs within 90 days before or during screening or planned use during the trial
Research Team
A
Amgen Call Center
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