Key clinical point: Patients with rheumatoid arthritis (RA) with better overall disease activity and longer etanercept treatment duration are more likely to remain in remission after transition from methotrexate+etanercept combination therapy to methotrexate or etanercept monotherapy.
Major finding: At week 48, the likelihood of patients remaining in Simple Disease Activity Index-based remission or maintaining low disease activity was 1.12 times higher with long-term etanercept monotherapy (P = .044) but was 0.93 times lower with each 1-point increase in Patient Global Assessment of Disease Activity (P = .012) and C-reactive protein (P = .033).
Study details: Findings are from the phase 3, SEAM-RA trial including 253 patients with RA who achieved remission with 24 weeks of methotrexate+etanercept combination therapy and were randomly assigned to continue combination therapy or transition to methotrexate+placebo or etanercept+placebo.
Disclosures: A wholly owned subsidiary of Amgen Inc., Immunex, funded this study. Three authors declared being employees and stockholders of Amgen Inc., and four authors declared ties with various sources, including Amgen.
Source: Curtis JR R et al. Factors associated with maintenance of remission following change from combination therapy to monotherapy in patients with rheumatoid arthritis. J Rheumatol. 2023 (Apr 15). Doi: 10.3899/jrheum.2022-1008.