Tetsuji Sawada

Comparison between Janus kinase inhibitor monotherapy and combination therapy with methotrexate in patients with rheumatoid arthritis: insight from the National Database of Rheumatic Diseases in Japan (NinJa) registry

Abstract Background: Janus kinase inhibitors (JAKi) are effective for rheumatoid arthritis (RA) and can be used as monotherapy; however, the clinical benefit of concomitant methotrexate (MTX) and the optimal MTX dose in JAKi-treated patients remain unclear in real-world settings....