Drug reduces the risk of developing rheumatoid arthritis, clinical trial finds

MedicalXpress | Jun 10, 2026

A clinical trial led by researchers from Hospital Clínic de Barcelona, the August Pi i Sunyer Biomedical Research Institute (IDIBAPS) and the Institute of Advanced Chemistry of Catalonia (IQAC-CSIC) compared the effectiveness of abatacept and hydroxychloroquine in preventing the development of rheumatoid arthritis in patients with palindromic rheumatism, an autoimmune disease that progresses to arthritis in approximately half of all patients.