PT - JOURNAL ARTICLE AU - Fleischmann, Roy M AU - Blanco, Ricardo AU - Hall, Stephen AU - Thomson, Glen T D AU - Van den Bosch, Filip E AU - Zerbini, Cristiano AU - Bessette, Louis AU - Enejosa, Jeffrey AU - Li, Yihan AU - Song, Yanna AU - DeMasi, Ryan AU - Song, In-Ho TI - Switching between Janus kinase inhibitor upadacitinib and adalimumab following insufficient response: efficacy and safety in patients with rheumatoid arthritis AID - 10.1136/annrheumdis-2020-218412 DP - 2021 Apr 01 TA - Annals of the Rheumatic Diseases PG - 432--439 VI - 80 IP - 4 4099 - http://ard.bmj.com/content/80/4/432.short 4100 - http://ard.bmj.com/content/80/4/432.full SO - Ann Rheum Dis2021 Apr 01; 80 AB - Objectives To evaluate efficacy and safety of immediate switch from upadacitinib to adalimumab, or vice versa, in patients with rheumatoid arthritis with non-response or incomplete-response to the initial therapy.Methods SELECT-COMPARE randomised patients to upadacitinib 15 mg once daily (n=651), placebo (n=651) or adalimumab 40 mg every other week (n=327). A treat-to-target study design was implemented, with blinded rescue occurring prior to week 26 for patients who did not achieve at least 20% improvement in both tender and swollen joint counts (‘non-responders’) and at week 26 based on Clinical Disease Activity Index (CDAI) >10 (‘incomplete-responders’) without washout.Results A total of 39% (252/651) and 49% (159/327) of patients originally randomised to upadacitinib and adalimumab were rescued to the alternate therapy. In both switch groups (adalimumab to upadacitinib and vice versa) and in non-responders and incomplete-responders, improvements in disease activity were observed at 3 and 6 months following rescue. CDAI low disease activity was achieved by 36% and 47% of non-responders and 45% and 58% of incomplete-responders switched to adalimumab and upadacitinib, respectively, 6 months following switch. Overall, approximately 5% of rescued patients experienced worsening in disease activity at 6 months postswitch. The frequency of adverse events was similar between switch groups.Conclusions These observations support a treat-to-target strategy, in which patients who fail to respond initially (or do not achieve sufficient response) are switched to a therapy with an alternate mechanism of action and experience improved outcomes. No new safety findings were observed despite immediate switch without washout.