The main objective of this trial is to test the hypothesis that abatacept can reduce the progression of rheumatoid arthritis in ACPA+ or RF+ patients with palindromic rheumatism compared with patients treated with hydroxychloroquine.
The main objective of this trial is to test the hypothesis that abatacept can reduce the progression of rheumatoid arthritis in ACPA+ or RF+ patients with palindromic rheumatism compared with patients treated with hydroxychloroquine.