5-Aminosalicylic acid in the treatment of Crohn's disease. A 16-week double-blind, placebo-controlled, multicentre study with Pentasa

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The response to 5-aminosalicylic acid (5-ASA) in mild and moderately active Crohn's disease localized in the small bowel was studied in a randomized, double-blind, placebo-controlled trial in four centres. Sixty-seven patients were included, of whom 30 were treated with 1500 mg slow-release 5-ASA/day (Pentasa) for a scheduled period of 16 weeks. In the 5-ASA group 40% of the patients improved, versus 30% of the placebo-treated group ('intent to treat' basis; p greater than 0.1). Four of the patients treated with 5-ASA left the study owing to disease deterioration, versus 10 of the placebo-treated patients (p greater than 0.2). Seventeen patients were secondarily excluded, and the remaining 50 patients (23 receiving 5-ASA) were reevaluated in greater detail. No statistically significant differences in outcome were shown. Three patients (one given 5-ASA) were withdrawn from the study because of presumed side effects, but no serious adverse reactions were recorded. The present results indicate that 5-ASA, at least in the dosage used, is not superior to placebo. Nevertheless, trends towards a beneficial effect in Crohn's disease in the small bowel justify further clinical trials with a larger dosage of 5-ASA.

Original languageEnglish
Book seriesScandinavian Journal of Gastroenterology
Issue number7
Pages (from-to)877-83
Number of pages7
Publication statusPublished - 1987
Externally publishedYes

    Research areas

  • Adolescent, Adult, Aged, Aminosalicylic Acids/adverse effects, Clinical Trials as Topic, Crohn Disease/drug therapy, Double-Blind Method, Female, Humans, Male, Mesalamine, Middle Aged, Random Allocation

ID: 218729863