Medline ® Abstract for Reference 42
of 'Initial treatment of rheumatoid arthritis in adults'
Validation of the methotrexate-first strategy in patients with early, poor-prognosis rheumatoid arthritis: results from a two-year randomized, double-blind trial.
O'Dell JR, Curtis JR, Mikuls TR, Cofield SS, Bridges SL Jr, Ranganath VK, Moreland LW, TEAR Trial Investigators
Arthritis Rheum. 2013;65(8):1985.
OBJECTIVE: Methotrexate (MTX) taken as monotherapy is recommended as the initial disease-modifying antirheumatic drug for rheumatoid arthritis (RA). The purpose of this study was to examine outcomes of a blinded trial of initial MTX monotherapy with the option to step-up to combination therapy as compared to immediate combination therapy in patients with early, poor-prognosis RA.
METHODS: In the Treatment of Early Rheumatoid Arthritis (TEAR) trial, 755 participants with early, poor-prognosis RA were randomized to receive MTX monotherapy or combination therapy (MTX plus etanercept or MTX plus sulfasalazine plus hydroxychloroquine). Participants randomized to receive MTX monotherapy stepped-up to combination therapy at 24 weeks if the Disease Activity Score in 28 joints using the erythrocyte sedimentation rate (DAS28-ESR) was≥3.2.
RESULTS: Attrition at 24 weeks was similar in the MTX monotherapy and combination groups. Of the 370 evaluable participants in the initial MTX group, 28% achieved lowlevels of disease activity and did not step-up to combination therapy (MTX monotherapy group). The mean±SD DAS28-ESR in participants continuing to take MTX monotherapy at week 102 was 2.7±1.2, which is similar to that in participants who were randomized to immediate combination therapy (2.9±1.2). Participants who received MTX monotherapy had less radiographic progression at week 102 as compared to those who received immediate combination therapy (mean±SD change in modified Sharp score 0.2±1.1 versus 1.1±6.4). Participants assigned to initial MTX who required step-up to combination therapy at 24 weeks (72%) demonstrated similar DAS28-ESR values (3.5±1.3 versus 3.2±1.3 at week 48) and radiographic progression (change in modified Sharp score 1.2±4.1 versus 1.1±6.4 at week 102) as those assigned to immediate combination therapy. The results for either of the immediate combination approaches, whether triple therapy or MTX plus etanercept, were similar.
CONCLUSION: These results in patients with early, poor prognosis RA validate the strategy of starting with MTX monotherapy. This study is the first to demonstrate in a blinded trial that initial MTX monotherapy with the option to step-up to combination therapy results in similar outcomes to immediate combination therapy. Approximately 30% of patients will not need combination therapy, and the 70% who will need it are clinically and radiographically indistinguishable from those who were randomized to receive immediate combination therapy.
University of Nebraska and Omaha VA Medical Center, Omaha, NE 68198-3025, USA. email@example.com