Home › Cardiac Sudden Death › NCT06964464
Comparative Effectiveness of Carvedilol Versus Metoprolol Succinate in Heart Failure Patients With an Implantable Cardioverter Defibrillator
Who can join
Ages 18 and older · All sexes
Full eligibility criteria
Inclusion Criteria: * Age ≥ 18 years * ICD implanted for primary prevention for HFrEF (either ICM or NICM) with remote monitoring capability * Current treatment with metoprolol succinate and willing to switch to carvedilol * LVEF \<50% during the past 12 months prior to consent Exclusion Criteria: * Unwilling or unable to follow the protocol * Treatment with any other ßB than metoprolol succinate or no ßB treatment * Known prior intolerance or contraindication to carvedilol * Systolic blood pressure \<100 mmHg * Enrollment in another clinical trial * Inability or unwilling to consent
About the study
This prospective, multicenter, open-label, randomized comparative effectiveness trial, titled CARVTOP-ICD, evaluates the impact of carvedilol versus metoprolol succinate in patients with heart failure with reduced ejection fraction (HFrEF) and an implantable cardioverter defibrillator (ICD). The study will enroll 2,000 participants across 100 U.S. sites and includes an 18-month feasibility phase with 100 participants from 15 sites. Eligible participants must be currently treated with metoprolol succinate and willing to switch to carvedilol, with randomization in a 1:1 ratio. Participants will be followed for up to 3 years, with regular assessments including ICD interrogations, medication adherence, healthcare utilization, and quality of life surveys. The primary endpoint is the first occurrence of any ICD therapy (appropriate or inappropriate), cardiovascular (CV) hospitalization, or CV death. Secondary endpoints include ICD shock burden, healthcare utilization, and patient-reported quality of life. The trial aims to provide high-quality comparative data to address clinical equipoise surrounding the two commonly used beta-blockers in HFrEF management.
What is being tested
- Metoprolol Succinate (drug)
- Carvedilol (drug)
Sponsor: University of Rochester · Participants: 2,000 · Started: Aug 17, 2025
Contact the study team
- Mehmet Aktas, M.D. · Phone: 585-275-5391
- Nicole Guerrero, MBA · Phone: 0000000000
Official record on ClinicalTrials.gov — NCT06964464
Locations in the U.S.
Conditions
From ClinicalTrials.gov, data retrieved Sep 30, 2026. Each study sets its own eligibility; the study team decides who can join.