Rates of ACR50 response and prespecified MTX-related adverse events in patients in the (A) CONCERTO study over 26 weeks and (B) MUSICA study over 24 weeks. ACR50, American College of Rheumatology 50; MTX, methotrexate. Rates of ACR50 response and prespecified MTX-related adverse events in patients in the (A) CONCERTO study over 26 weeks and (B) MUSICA study over 24 weeks. ACR50, American College of Rheumatology 50; MTX, methotrexate. Gerd R Burmester et al. RMD Open 2017;3:e000465 Copyright © BMJ Publishing Group & EULAR. All rights reserved.