Abstract
The objective of this study was to evaluate the efficacy of low-dose (0.2 mg/kg) methotrexate (MTX) in the treatment of children with oligoarticular juvenile idiopathic arthritis (JIA) who do not respond to nonsteroidal anti-inflammatory drugs (NSAIDs) and repeated intra-articular corticosteroid (IA) injections. Nineteen consecutive patients (age: 2-14 years, 18 females) with oligoarticular JIA were studied prospectively. Sixteen had a persistent course and three had an extended course of the disease. Patients were defined as nonresponders to IA injections if the duration of improvement following two consecutive injections was less than 4 weeks. These patients were offered low-dose oral MTX, administered once a week for at least 6 months. Of the 19 patients in this series, 2 responded to NSAIDs alone. Forty-eight IA injections were given to 17 patients; 11 (64%) of them did not respond to this treatment. Nine of the nonresponders were treated with low-dose MTX for a median duration of 15+/-3.8 months. Except for one patient with an extended disease course, all responded very well to treatment and went into remission after a median of 6.4+/-2.9 months, and none required additional IA injections after initiation of MTX treatment. Low-dose oral MTX appears to be very effective in the management of children with oligoarticular JIA, who are unresponsive to IA injections.
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