OMERACT is a global, volunteer-driven, not-for-profit organization committed to improving outcomes for patients with autoimmune and musculoskeletal diseases through advancing the design and quality of clinical studies.
Through rigorous methodology and our global Working Groups, OMERACT supports the development of Core Outcome Sets (COS), identifying patient and disease-relevant areas to be measured (domains) and the corresponding measurement instruments for use in clinical trials, including those for regulatory approval of new treatments.