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Pubmed-Randomised clinical trial: minesapride vs placebo for irritable bowel syndrome with predominant constipation.

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Randomised clinical trial: minesapride vs placebo for irritable bowel syndrome with predominant constipation.

Aliment Pharmacol Ther. 2020 Jun 25;:

Authors: Hamatani T, Fukudo S, Nakada Y, Inada H, Kazumori K, Miwa H

Abstract
BACKGROUND: Agonists of 5-hydroxytryptamine 4 receptor are potential agents for irritable bowel syndrome with predominant constipation (IBS-C). However, only tegaserod has been approved for a very limited population in the US.
AIM: To evaluate the efficacy and safety of minesapride in patients with Rome IV defined IBS-C.
METHODS: A double-blind, placebo-controlled, dose-finding study was performed. Overall, 411 patients were randomised to receive minesapride at 10, 20 or 40 mg/d, or placebo for 12 weeks. The primary endpoint was Food and Drug Administration (FDA) composite endpoint (responder: a patient who reported an increase in one or more complete spontaneous bowel movements from baseline and improvement of ≥30% from baseline in weekly average of worst abdominal pain score, both in the same week for ≥6/12 weeks).
RESULTS: The FDA composite responder rate was 13.6% (14/103) in the placebo group, 13.6% (14/103) in the 10 mg group, 19.2% (20/104) in the 20 mg group and 14.9% (15/101) in the 40 mg group, and no dose-response relationship was found. A greater percentage of minesapride 40 mg-treated patients than placebo-treated patients met both responder requirements for ≥9/12 weeks as the stricter composite evaluation (P < 0.05). Furthermore, minesapride 40 mg significantly increased SBM frequency compared with placebo (adjusted P < 0.001 at Week 12). The most common adverse event was mild diarrhoea.
CONCLUSIONS: Minesapride was safe and well-tolerated. Although the primary endpoint was negative, minesapride 40 mg is likely to improve the stricter composite endpoint and SBM frequency. Japan Pharmaceutical Information Center Number: Japic CTI-163459.

PMID: 32583907 [PubMed - as supplied by publisher]

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