RT Journal Article SR Electronic A1 Vinall, Maria T1 24-Week Results from the RAPID-PsA Study JF MD Conference Express YR 2012 FD SAGE Publications VO 12 IS 9 SP 8 OP 9 DO 10.1177/155989771209005 UL http://mdc.sagepub.com/content/12/9/8.2.abstract AB This article presents key results from the first Phase 3 trial of certolizumab pegol (CZP) in patients with active psoriatic arthritis (PsA). In the Phase 3, Multicenter, Randomized, Double-Blind, Parallel Group, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Certolizumab Pegol in Subjects With Adult Onset Active and PsA study [RAPID-PsA; NCT01087788], patients who were treated with CZP were twice as likely to meet the primary study endpoint of ACR20 response at Week 12 compared with those who were taking placebo.