Objective. Golimumab, administered subcutaneously every 4 weeks, has been shown to be effective in reducing the signs and symptoms of active psoriatic arthritis (PsA) through week 24 of the GO-REVEAL study. Herein we report 1-year clinical, radiographic, and safety findings.Methods. Adult patients with active PsA (>3 swollen and >3 tender joints) were randomly assigned to receive subcutaneous placebo, golimumab 50 mg, or golimumab 100 mg every 4 weeks through week 20. At week 16, patients with <10% improvement from baseline in swollen and tender joint counts entered a blinded early escape phase, with placebo crossover to golimumab 50 mg, golimumab 50 mg increased to 100 mg, and golimumab 100 mg continued at 100 mg. Patients receiving placebo who did not enter the early escape phase crossed over to golimumab 50 mg at week 24. Findings through 1 year are reported, including the secClinicalTrials.gov identifier: NCT00265096.