Methotrexate monotherapy versus methotrexate combination therapy with non-biologic disease modifying anti-rheumatic drugs for rheumatoid arthritis
Abstract
Background: Methotrexate (MTX) is among the most effective disease modifying anti-rheumatic drugs (DMARDs) in rheumatoid arthritis (RA) with less toxicity and better tolerability.
Objectives: To evaluate the efficacy and toxicity of MTX monotherapy compared to MTX combination with non-biologic DMARDs in adult with RA.
Search strategy: Trials were identified in MEDLINE (1950 to 2009), EMBASE (1980 to 2009), the Cochrane Controlled trials Registry (CENTRAL) (up to 2009), the American and European scientific meeting abstracts 2005-9, the reference lists of all relevant studies, letters, and review articles.
Selection criteria: Randomized controlled trials comparing MTX monotherapy versus MTX combined with other non-biologic DMARDs of at least 12 weeks of trial duration in adult RA patients.
Data collection and analysis: Two reviewers independently identified eligible studies,extracted the data, and assessed the risk of bias of relevant studies.The efficacy analysis was stratified into 3 groups based on previous DMARDs use: DMARD naive, MTX inadequate response, and non-MTX DMARDs inadequate response. The toxicity analysis was stratified by DMARD combination and pooled across trials for each combination. Our prespecified primary analysis was based on total withdrawal rates for efficacy or toxicity.
Main results: A total of 19 trials (2,025 patients) from 6,938 citations were grouped by the type of patients randomised. Trials in DMARD naive patients showed no significant advantage…
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