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Alosetron improves quality of life in women with diarrhea-predominant irritable bowel syndrome.

Author(s): Watson ME, Lacey L, Kong S, Northcutt AR, McSorley D, Hahn B, Mangel AW

Affiliation(s): Global Health Outcomes, Glaxo Wellcome, Research Triangle Park, North Carolina 27709-3398, USA.

Publication date & source: 2001-02, Am J Gastroenterol., 96(2):455-9.

Publication type: Clinical Trial; Randomized Controlled Trial

OBJECTIVES: The aim of this study was to assess the impact of alosetron, a treatment recently approved in the United States for irritable bowel syndrome in diarrhea-predominant female patients, on health-related quality of life. METHODS: Quality of life was assessed as part of two 12-wk randomized, double-blind, placebo-controlled irritable bowel syndrome studies comparing alosetron 1 mg b.i.d. with placebo (S3BA3001 and S3BA3002). Patients completed a validated disease-specific quality of life questionnaire, the Irritable Bowel Syndrome Quality of Life Questionnaire (IBSQOL), at baseline and at the 12-wk or final visit. The clinical relevance of data were also evaluated by a minimal meaningful difference instrument. RESULTS: A total of 626 and 647 patients were enrolled in studies S3BA3001 and S3BA3002, respectively. Approximately 70% of patients in each study had diarrhea-predominant IBS. In diarrhea-predominant patients enrolled in S3BA3001, statistically significant (p < 0.05) improvements with alosetron versus placebo were observed on all nine IBSQOL scales (emotional health, mental health, sleep, energy, physical functioning, food/diet, social functioning, role-physical, and sexual relations) and for all but one scale (mental health) in S3BA3002. In both studies, a significantly greater percentage of patients treated with alosetron (p < 0.05) experienced clinically meaningful improvement on three of the nine IBSQOL scales (food/diet, social functioning, and role-physical) compared with patients treated with placebo. Patients treated with alosetron did not show worsening in any quality of life domain compared with patients treated with placebo. CONCLUSIONS: These results in women with diarrhea-predominant IBS demonstrate that alosetron significantly improves health-related quality of life.

Page last updated: 2006-01-31

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