Colchicine versus placebo in Behçet's disease: randomized, double-blind, controlled crossover trial.

Abstract	The effect of colchicine was evaluated in a large cohort of Behçet's disease (BD) patients and compared to placebo. In a randomized, double-blind, controlled crossover trial, 169 patients without major organ involvement were selected consecutively. They fulfilled the International Criteria for Behçet's Disease. Patients were randomly assigned to colchicine or placebo. At 4 months, they were swapped over (colchicine to placebo, placebo to colchicine) for another 4 months. The primary outcome was the overall disease activity index, the IBDDAM. The secondary outcome was the responses of the individual symptoms. A Student's paired t test was used to evaluate results within each group, and an ANOVA to check for differences between colchicine and placebo. Analysis was performed using the "intention to treat" method. For placebo, IBDDAM worsened from 3.17 to 3.63 (t = 1.750, P = 0.08). For colchicine, IBDDAM improved from 3.35 to 2.75 (t = 4.143, P < 0.0001). Oral aphthosis, genital aphthosis, pseudofolliculitis, and erythema nodosum improved significantly with colchicine but not with placebo. According to the ANOVA, the difference in IBDDAM between colchicine and placebo was highly significant (F = 14.674, P = 0.00016). The difference between the results for males and females was not significant (F = 0.181, P = 0.67). In conclusion, colchicine, but not placebo, significantly improved the overall disease activity index. The difference between the results for colchicine and placebo was also statistically significant.
Authors	Fereydoun Davatchi, Bahar Sadeghi Abdollahi, Arash Tehrani Banihashemi, Farhad Shahram, Abdolhadi Nadji, Hormoz Shams, Cheyda Chams-Davatchi
Journal	Modern rheumatology (Mod Rheumatol) Vol. 19 Issue 5 Pg. 542-9 ( 2009) ISSN: 1439-7609 [Electronic] England
PMID	19597921 (Publication Type: Journal Article, Randomized Controlled Trial, Research Support, Non-U.S. Gov't)
Chemical References	Colchicine
Topics	Adolescent Adult Analysis of Variance Behcet Syndrome (drug therapy) Colchicine (therapeutic use) Cross-Over Studies Double-Blind Method Drug Administration Schedule Female Humans Iran Male Middle Aged Patient Selection Severity of Illness Index Treatment Outcome

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