Journal
INFLAMMATORY BOWEL DISEASES
Volume 15, Issue 1, Pages 17-24Publisher
OXFORD UNIV PRESS INC
DOI: 10.1002/ibd.20608
Keywords
antibiotics; perianal fistula; Crohn's disease; inflammatory bowel disease
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Funding
- Crohn's and Colitis Foundation of America
- Crohn's and Colitis Foundation of Canada
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Background: Although metronidazole and ciprofloxacin are used to treat perianal Crohn's disease (CD). no placebo-controlled trials have been performed. Methods: We performed a placebo-controlled pilot trial to evaluate the efficacy and safety of metronidazole and ciprofloxacin in patients with perianal CD. Twenty-five patients with CD and actively draining, perianal fistulas were randomized to receive ciprofloxacin 500 mg. metronidazole 500 mg, or placebo twice daily for 10 weeks. Remission and response of perianal fistulas were defined as closure of all fistulas and Closure of at least 50% of fistulas that were draining at baseline, respectively. The primary endpoint was remission at 10 weeks. Results: Ten patients were randomized to ciprofloxacin, 7 to metronidazole. and 8 to placebo. Remission at week 10 occurred in 3 patients (30%) treated with ciprofloxacin, no patients (0%) treated with metronidazole, and 1 patient (12.5%) treated with placebo (P = 0.41). Response at week 10 occurred in 4 patients (40%) treated with ciprofloxacin, 1 patient (14.3%) treated with metronidazole, and 1 patient (12.5%) treated with placebo (P = 0.43). Termination of the trial prior to week 10 occurred in 1 patient (10%) treated with ciprofloxacin, 5 patients (71.4%) treated with metronidazole, and 1 patient (12.5%) treated with placebo (P < 0.02). No Serious adverse events occurred. Couclusion: Remission and response occured more frequently in patients treated with ciprofloxacin but the differences were not significant in this pilot study. Ciprofloxacin was well tolerated.
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