Overview Efficacy and Safety Study of Guselkumab in the Treatment of Participants With Active Psoriatic Arthritis (PsA) Status: Completed Trial end date: 2017-01-17 Target enrollment: Participant gender: Summary The purpose of this study is to evaluate the efficacy, safety and tolerability of guselkumab in participants with Active Psoriatic Arthritis (PsA). Phase: Phase 2 Details Lead Sponsor: Janssen Research & Development, LLCTreatments: Antibodies, MonoclonalUstekinumab