Overview Safety and Efficacy of Celecoxib Versus Diclofenac in the Treatment of Ankylosing Spondylitis Status: Completed Trial end date: 2005-01-01 Target enrollment: Participant gender: Summary To compare the safety and efficacy of once-daily and twice-daily celecoxib versus diclofenac for the treatment of ankylosing spondylitis Phase: Phase 3 Details Lead Sponsor: PfizerTreatments: CelecoxibDiclofenac