Abstract:Background:Concomitant use of methotrexate (MTX) in abatacept (ABA) therapy is associated with good clinical response in patients with rheumatoid arthritis (RA) who are naïve to biological disease-modifying antirheumatic drugs (bDMARDs)1,2. However, it is unclear when abatacept is used in patients with prior bDMARDs use3.Objectives:We compared the effectiveness of abatacept monotherapy versus abatacept combined with methotrexate therapy in rheumatoid arthritis patients with prior bDMARDs use.Methods:Retrospect… Show more
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