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  • Title: Efficacy of methotrexate in pediatric Crohn's disease: a French multicenter study.
    Author: Uhlen S, Belbouab R, Narebski K, Goulet O, Schmitz J, Cézard JP, Turck D, Ruemmele FM.
    Journal: Inflamm Bowel Dis; 2006 Nov; 12(11):1053-7. PubMed ID: 17075346.
    Abstract:
    BACKGROUND: Immunosuppressors play a major role in maintaining remission in Crohn's disease (CD). In patients who do not tolerate or escape therapy with azathioprine (AZA)/6-mercaptopurine, there is a marked need for other immunosuppressive drugs. The aim of the present study was to evaluate the efficacy and safety of methotrexate (MTX) in children with active CD. METHODS: In a retrospective multicenter (n = 3) study, the efficacy of MTX to induce complete remission or a clinical improvement was analyzed in 61 children with active CD. RESULTS: CD was diagnosed at a mean age of 11.1 +/- 2.3 years, and MTX was introduced 3.1 +/- 2.2 years after diagnosis. Indications to use MTX were a nonresponse to or relapse under AZA (n = 42) or AZA intolerance/toxicity (n = 19). MTX improved or induced complete remission in 49 patients (80%), of whom 18 (29.5%) relapsed after 13 +/- 10 months of treatment. Under MTX medication, complete remission was observed in 39%, 49%, and 45% at 3, 6, and 12 months, respectively. Follow-up over at least 24 months in 11 children confirmed a sustained remission on MTX monotherapy up to 40 months. Adverse reactions were observed in 14 patients (24%), requiring discontinuation of MTX in 6 children (10%) (liver enzyme elevation, n = 2; varicella-zoster, n = 1; nausea, n = 3). MTX allowed corticosteroid discontinuation in 36 patients. CONCLUSIONS: MTX improved the clinical course in most pediatric CD patients who escaped or did not tolerate AZA. Short-time toxicity of MTX resulted in drug discontinuation in <10%. These data point to a beneficial and safe use of MTX in the treatment of pediatric CD.
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