Discontinuation of Methotrexate in Rheumatoid Arthritis Patients Achieving Clinical Remission by Treatment With Upadacitinib Plus Methotrexate

Patients will receive upadacitinib 15mg/day and continue to receive same doses of MTX until 24 weeks. If patients achieve a European League Against Rheumatism (EULAR) moderate response or a Disease Activity Score 28 (DAS28-CRP) ≤3.2 at 12 weeks, and a DAS28-CRP of \<2.6 at 24 weeks, they will discontinue MTX, and continue upadacitinib until 48 weeks.