Overview Analgesic Efficacy and Safety Study of Naproxcinod in Subjects With Osteoarthritis of the Knee Status: Completed Trial end date: 2007-09-01 Target enrollment: Participant gender: Summary To study the efficacy and safety of naproxcinod vs. placebo and naproxen in the treatment of signs and symptoms of Osteoarthritis. Phase: Phase 3 Details Lead Sponsor: NicOxTreatments: AnalgesicsNaproxenNaproxen-n-butyl nitrate