- Patients were eligible for this study if they met the American Rheumatism Association classification criteria for RA (9), had a disease duration inferior to one year, suffered from active disease (defined as the presence of a swollen joint count [SJC] ≥ 6 [by the 66 joints count] and a tender joint count [TJC] ≥ 8 [by the 68 joints count]) and had not been treated with MTX before.