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Original Article
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Volume 331:836-841 September 29, 1994 Number 13
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Oral Budesonide for Active Crohn's Disease
Gordon R. Greenberg, Brian G. Feagan, Francois Martin, Lloyd R. Sutherland, Alan Thomson, C. Noel Williams, Lars-Goran Nilsson, Tore Persson, for The Canadian Inflammatory Bowel Disease Study Group

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ABSTRACT

Background Corticosteroids are the most efficacious drugs for inducing remission in active Crohn's disease, but their benefits are frequently offset by serious side effects. Budesonide is a corticosteroid with high topical antiinflammatory activity but low systemic activity because of extensive hepatic metabolism. We investigated the efficacy and safety of an oral controlled-ileal-release preparation of budesonide in patients with active Crohn's disease involving the ileum or ileum and proximal colon.

Methods In a double-blind, multicenter trial, 258 patients were randomly assigned to receive placebo or one of three doses of budesonide -- 3, 9, or 15 mg daily. The primary outcome measure was clinical remission, as defined by a score of 150 or less on the Crohn's disease activity index.

Results After eight weeks of treatment, remission occurred in 51 percent of the patients in the group receiving 9 mg of budesonide (95 percent confidence interval, 39 to 63 percent), 43 percent of those receiving 15 mg (95 percent confidence interval, 31 to 55 percent), and 33 percent of those receiving 3 mg (95 percent confidence interval, 21 to 44 percent), as compared with 20 percent of those receiving placebo (P<0.001, P = 0.009, and P = 0.13, respectively). Improvements in the quality of life, as measured by the patients' responses to the inflammatory bowel disease questionnaire, parallelled these remission rates. Location of disease, prior surgical resection, and previous use of corticosteroids did not affect the outcome. A total of 119 patients (46 percent) were withdrawn from the study before the trial ended, 96 because of insufficient therapeutic effects, 13 because of adverse reactions, and 10 because of noncompliance. Budesonide caused a dose-related reduction in basal and corticotropin-stimulated plasma cortisol concentrations but was not associated with clinically important corticosteroid-related symptoms or other toxic effects.

Conclusions In an eight-week trial, an oral controlled-release preparation of budesonide at an optimal daily dose of 9 mg was well tolerated and effective against active Crohn's disease of the ileum and proximal colon.


Source Information

From the Department of Medicine, University of Toronto, Toronto (G.R.G.); the Departments of Medicine and Epidemiology and Biostatistics, University of Western Ontario, London (B.G.F.); the Department of Medicine, University of Montreal, Montreal (F.M.); the Department of Medicine, University of Calgary, Calgary, Alta. (L.R.S.); the Department of Medicine, University of Alberta, Edmonton (A.B.R.T.); the Department of Medicine, Dalhousie University, Halifax, N.S. (C.N.W.); and the Departments of Clinical Research and Development and Biostatistics and Data Processing, Astra Draco, Lund, Sweden (L.-G.N., T.P.). Members of the study group are listed in the Appendix.

Address reprint requests to Dr. Greenberg at Mount Sinai Hospital, 600 University Ave., Rm. 445, Toronto, ON M5G 1X5, Canada.

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