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A randomised trial of ondansetron for the treatment of irritable bowel syndrome with diarrhoea

Garsed, Klara; Chernova, Julia; Hastings, Margaret; Lam, Ching; Marciani, Luca; Singh, Gulzar; Henry, Amanda P.; Hall, Ian P.; Whorwell, Peter; Spiller, Robin C.

Authors

Klara Garsed

Julia Chernova

Margaret Hastings

Ching Lam

Luca Marciani Luca.Marciani@nottingham.ac.uk

Gulzar Singh

Amanda P. Henry

Ian P. Hall

Peter Whorwell

Robin C. Spiller

Abstract

Background: Irritable bowel syndrome with diarrhoea (IBS-D) is particularly debilitating due to urgency and episodic incontinence. Some 5-hydroxytryptamine 3 (5-HT3) receptor antagonists (5-HT3RAs) have proven effective but have serious side effects. Ondansetron, also a 5-HT3RA, has been widely used as an antiemetic with an excellent safety record for over two decades. Our aim was to assess its effectiveness in IBS-D.

Methods: 120 patients meeting Rome III criteria for IBS-D entered a randomised, double-blind, placebo-controlled crossover study of 5 weeks of ondansetron 4 mg versus placebo with dose titration allowed, up to two tablets three times daily in the first 3 weeks. Patients completed daily diaries documenting stool consistency using the Bristol Stool Form score. Gut transit was measured in the last week of each treatment. The primary endpoint was average stool consistency in the last 2 weeks of treatment.

Results: Ondansetron significantly improved stool consistency (mean difference in stool form between ondansetron and placebo −0.9, 95% CI −1.1 to −0.6, p

Journal Article Type Article
Publication Date Dec 12, 2013
Journal Gut
Print ISSN 0017-5749
Electronic ISSN 1468-3288
Publisher BMJ Publishing Group
Peer Reviewed Peer Reviewed
Institution Citation Garsed, K., Chernova, J., Hastings, M., Lam, C., Marciani, L., Singh, G., …Spiller, R. C. (2013). A randomised trial of ondansetron for the treatment of irritable bowel syndrome with diarrhoea. Gut, doi:10.1136/gutjnl-2013-305989
DOI https://doi.org/10.1136/gutjnl-2013-305989
Publisher URL http://dx.doi.org/10.1136/gutjnl-2013-305989
Related Public URLs http://gut.bmj.com/content/early/2013/12/12/gutjnl-2013-305989
Copyright Statement Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://creativecommons.org/licenses/by/4.0




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