Overview A Study of Two Approved Drugs in Patients With Osteoarthritis (0966-220)(COMPLETED) Status: Completed Trial end date: 2003-11-01 Target enrollment: Participant gender: Summary The purpose of this study is to compare the safety and effectiveness of two approved drugs in the treatment of osteoarthritis of the knee. Phase: Phase 3 Details Lead Sponsor: Merck Sharp & Dohme Corp.Treatments: CelecoxibRofecoxib