Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/64535
Title: Efficacy of methotrexate in ankylosing spondylitis: A randomized, double blind, placebo controlled trial
Author: Gonzalez-Lopez, L.
Garcia-Gonzalez, A.
Vazquez-Del-Mercado, M.
Munoz-Valle, J.F.
Gamez-Nava, J.I.
Issue Date: 2004
Abstract: Objective. To evaluate the efficacy and safety of methotrexate (MTX) compared with placebo in patients with active ankylosing spondylitis (AS). Methods. This 24 week, double bind, randomized, placebo controlled trial compared the response between MTX 7.5 mg/week or placebo in patients with active AS. The primary outcome measure was a composite index of improvement in 5 of the following scales: severity of morning stiffness, physical well being, the Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), the Bath Ankylosing Spondylitis Functional Index (BASFI), the Health Assessment Questionnaire for Spondyloarthropathies (HAQ-S), and physician and patient global assessment of disease activity. Results. Seventeen patients received MTX and 18 placebo. In the intention-to-treat analysis at 24 weeks, 53% of patients in the MTX group had a treatment response, compared with 17% in the placebo group (p = 0.03). We observed significant improvements with MTX in physical well being (p = 0.009), BASDAI (p = 0.02), BASFI (p = 0.02), physician global assessment (p < 0.001), patient global assessment (p = 0.03), and HAQ-S (p = 0.02). In the adjusted analysis only MTX determined the improvement in the primary outcome. At the end of the trial, one patient with MTX withdrew due to a lack of compliance, and one with placebo due to a lack of efficacy. We did not observe significant differences in rates of side effects between the 2 groups. Conclusion. MTX is safe and effective for patients with AS. Longterm studies are needed to evaluate the permanence of its benefit.
URI: http://hdl.handle.net/20.500.12104/64535
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