Comparing Analgesic Regimen Effectiveness and Safety for Surgery (CARES) Trial — StellaPhase 4 — Post-approval study. The treatment has been approved, but researchers continue monitoring it in a large population over time.
Trial locations(8 sites)
United States
University of Michigan, Ann Arbor, Michigan Henry Ford Health System, Detroit, Michigan Washington University in Saint Louis, St Louis, Missouri Cooper University Health Care, Camden, New Jersey University of North Carolina Hospitals, Chapel Hill, North Carolina Temple University - Temple Health, Philadelphia, Pennsylvania Canada
Women's College Hospital, Toronto, Ontario Unity Health Toronto, Toronto, Ontario Age range
18 Years and older
Last updated October 2025