Comparative Effectiveness of Carvedilol Versus Metoprolol Succinate in Heart Failure Patients With an Implantable Cardioverter Defibrillator — StellaPhase 4 — Post-approval study. The treatment has been approved, but researchers continue monitoring it in a large population over time.
Trial locations(13 sites)
United States
HonorHealth, Scottsdale, Arizona AdventHealth Redmond, Rome, Georgia AdventHealth Shawnee Mission, Shawnee Mission, Kansas Henry Ford Health System, Detroit, Michigan University of Mossouri, Columbia, Missouri Creighton University Medical Center, Omaha, Nebraska Suny Downstate, Brooklyn, New York New York-Presbyterian Brooklyn Methodist Hospital, Brooklyn, New York University of Rochester Medical Center, Rochester, New York CHRISTUS Trinity Mother Frances Health System, Tyler, Texas Health University of Utah, Salt Lake City, Utah Virginia Commonwealth University, Richmond, Virginia University of Wisconsin Hospital and Clinics, Madison, Wisconsin Last updated September 2025