Key clinical point: Treatment with the half dose vs. stable dose of conventional synthetic disease-modifying antirheumatic drugs (csDMARDs) was associated with increased rates of flares over 12 months in patients with rheumatoid arthritis (RA) in remission.
Major finding: At 12 months, the proportion of patients with at least 1 flare was significantly higher with half-dose vs. stable-dose csDMARDs (25% vs. 6%; risk difference, 18%; P = .003), thereby not meeting the noninferiority criterion of a 20% difference. There were 54 vs. 75 adverse events in the half-dose vs. stable-dose group.
Study details: Findings are from ARCTIC REWIND , a 36-month noninferiority trial of 160 patients with RA in remission for 12 months who were receiving stable csDMARDs. Patients were randomly allocated to either half-dose (n=80) or stable-dose (n=80) csDMARDs.
Disclosures: ARCTIC REWIND study was funded by the Research Council of Norway and South-Eastern Norway Regional Health Authority. The authors including the lead author reported receiving grants, personal fees, and nonfinancial support from various sources.
Source: Lillegraven S et al. JAMA. 2021 May 4. doi: 10.1001/jama.2021.4542 .