RT Journal Article SR Electronic T1 Updating the Psoriatic Arthritis (PsA) Core Domain Set: A Report from the PsA Workshop at OMERACT 2016 JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP jrheum.160904 DO 10.3899/jrheum.160904 A1 Ana-Maria Orbai A1 Maarten de Wit A1 Philip J. Mease A1 Kristina Callis Duffin A1 Musaab Elmamoun A1 William Tillett A1 Willemina Campbell A1 Oliver FitzGerald A1 Dafna D. Gladman A1 Niti Goel A1 Laure Gossec A1 Pil Hoejgaard A1 Ying Ying Leung A1 Chris Lindsay A1 Vibeke Strand A1 Désirée M. van der Heijde A1 Bev Shea A1 Robin Christensen A1 Laura Coates A1 Lihi Eder A1 Neil McHugh A1 Umut Kalyoncu A1 Ingrid Steinkoenig A1 Alexis Ogdie YR 2017 UL http://www.jrheum.org/content/early/2017/02/09/jrheum.160904.abstract AB Objective To include the patient perspective in accordance with the Outcome Measures in Rheumatology (OMERACT) Filter 2.0 in the updated Psoriatic Arthritis (PsA) Core Domain Set for randomized controlled trials (RCT) and longitudinal observational studies (LOS). Methods At OMERACT 2016, research conducted to update the PsA Core Domain Set was presented and discussed in breakout groups. The updated PsA Core Domain Set was voted on and endorsed by OMERACT participants. Results We conducted a systematic literature review of domains measured in PsA RCT and LOS, and identified 24 domains. We conducted 24 focus groups with 130 patients from 7 countries representing 5 continents to identify patient domains. We achieved consensus through 2 rounds of separate surveys with 50 patients and 75 physicians, and a nominal group technique meeting with 12 patients and 12 physicians. We conducted a workshop and breakout groups at OMERACT 2016 in which findings were presented and discussed. The updated PsA Core Domain Set endorsed with 90% agreement by OMERACT 2016 participants included musculoskeletal disease activity, skin disease activity, fatigue, pain, patient’s global assessment, physical function, health-related quality of life, and systemic inflammation, which were recommended for all RCT and LOS. These were important, but not required in all RCT and LOS: economic cost, emotional well-being, participation, and structural damage. Independence, sleep, stiffness, and treatment burden were on the research agenda. Conclusion The updated PsA Core Domain Set was endorsed at OMERACT 2016. Next steps for the PsA working group include evaluation of PsA outcome measures and development of a PsA Core Outcome Measurement Set.