Overview Efficacy and Safety of Celecoxib Versus Ibuprofen in the Treatment of Osteoarthritis of the Knee (United States) Status: Completed Trial end date: 2003-03-01 Target enrollment: Participant gender: Summary To compare the efficacy and safety of celecoxib versus ibuprofen in subjects with osteoarthritis (OA) of the knee. Phase: Phase 4 Details Lead Sponsor: PfizerPfizer's Upjohn has merged with Mylan to form Viatris Inc.Treatments: CelecoxibIbuprofen