Overview Safety and Efficacy of Celecoxib Versus Naproxen in the 6-month Treatment of Knee Osteoarthritis Status: Completed Trial end date: 2005-01-01 Target enrollment: Participant gender: Summary To compare the safety and efficacy of celecoxib versus naproxen for the treatment of knee osteoarthritis Phase: Phase 4 Details Lead Sponsor: PfizerPfizer's Upjohn has merged with Mylan to form Viatris Inc.Treatments: CelecoxibNaproxen