RT Journal Article SR Electronic T1 Prologue: 2020 Annual Meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) JF The Journal of Rheumatology JO J Rheumatol FD The Journal of Rheumatology SP 1 OP 3 DO 10.3899/jrheum.201666 VO 97 A1 Kristina Callis Duffin A1 Alice B. Gottlieb A1 Denis O’Sullivan A1 Dafna D. Gladman A1 Lynne V. McFarland YR 2021 UL http://www.jrheum.org/content/97/1.abstract AB The Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA) held its annual meeting in 2020 in an online format due to travel restrictions during the coronavirus disease 2019 (COVID-19; caused by SARS-CoV-2) pandemic. The virtual meeting was attended by 351 rheumatologists, dermatologists, representatives of biopharmaceutical companies, and patient research partners. Similar to previous years, GRAPPA’s annual meeting focused on the 3 overlapping missions of education, research, and clinical care of psoriatic disease. Trainee sessions this year included the annual trainee symposium and a grant-writing workshop. Plenary sessions included updates on COVID-19 and psoriatic disease from multispecialty and patient perspectives, and updates on pustular psoriasis and associated musculoskeletal manifestations. Progress on research and updates were presented for the following groups: Collaborative Research Network, Outcome Measures in Rheumatology (OMERACT) Psoriatic Arthritis Working Group, International Dermatology Outcome Measures, Composite Measures, Education Committee, and Treatment Guidelines. New this year were 3 concurrent workshops on ultrasound assessment of joints and entheses, magnetic resonance imaging of psoriatic arthritis, and pustular psoriasis efficacy endpoints; 6 “Meet the Expert” sessions; and facilitated “poster tours.” In our prologue, we introduce the papers that summarize this meeting.