PMID- 35975404 OWN - NLM STAT- MEDLINE DCOM- 20221205 LR - 20230411 IS - 1365-2982 (Electronic) IS - 1350-1925 (Print) IS - 1350-1925 (Linking) VI - 34 IP - 12 DP - 2022 Dec TI - Efficacy and safety of vibegron for the treatment of irritable bowel syndrome in women: Results of a randomized, double-blind, placebo-controlled phase 2 trial. PG - e14448 LID - 10.1111/nmo.14448 [doi] LID - e14448 AB - BACKGROUND: Preclinical and clinical studies suggest that beta(3) -adrenergic receptor activation may be a novel target for treating abdominal pain and gastrointestinal motility dysfunction in patients with irritable bowel syndrome (IBS). This proof-of-concept study evaluated the efficacy and safety of the beta(3) -adrenergic agonist vibegron in treating IBS-related pain. METHODS: Adult women with predominant-diarrhea IBS (IBS-D) or with mixed diarrhea/constipation (IBS-M), diagnosed using Rome IV criteria, were randomized 1:1 to receive once-daily vibegron 75 mg or placebo for 12 weeks. The primary endpoint was the percentage of patients with IBS-D considered abdominal pain intensity (API) weekly responders, defined as >/=30% reduction from baseline at week 12 in mean weekly worst abdominal pain over 24 hours using the API score. Patients completed a pain diary at baseline and at weeks 2, 4, 8, and 12. Safety was assessed by adverse events (AEs) in the overall IBS population. KEY RESULTS: Of the 222 patients with IBS randomized (vibegron, N = 111; placebo, N = 111), 85% completed the trial. There was no significant difference in the percentage of patients with IBS-D (vibegron, N = 66; placebo, N = 63) considered API weekly responders with vibegron vs. placebo (p = 0.8222) after 12 weeks. The incidence of AEs was comparable between treatment groups (33.3% each), with equal rates of worsening IBS symptoms (2.7% each). CONCLUSIONS AND INFERENCES: In women with IBS-D, vibegron was not associated with significant improvement in the percentage of API weekly responders. Vibegron was generally safe and well tolerated and, in particular, did not worsen IBS symptoms vs. placebo. CI - (c) 2022 The Authors. Neurogastroenterology & Motility published by John Wiley & Sons Ltd. FAU - Lacy, Brian E AU - Lacy BE AUID- ORCID: 0000-0002-2778-0786 AD - Gastroenterology and Hepatology, Mayo Clinic, Jacksonville, Florida, USA. FAU - King, Jennifer AU - King J AD - Urovant Sciences, Irvine, California, USA. FAU - Shortino, Denise AU - Shortino D AD - Urovant Sciences, Irvine, California, USA. FAU - Schaumburg, Chris AU - Schaumburg C AD - Urovant Sciences, Irvine, California, USA. FAU - Haag-Molkenteller, Cornelia AU - Haag-Molkenteller C AD - Urovant Sciences, Irvine, California, USA. FAU - Chey, William D AU - Chey WD AD - Division of Gastroenterology, University of Michigan Health System, Ann Arbor, Michigan, USA. LA - eng PT - Clinical Trial, Phase II PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20220816 PL - England TA - Neurogastroenterol Motil JT - Neurogastroenterology and motility JID - 9432572 SB - IM MH - Adult MH - Humans MH - Female MH - *Irritable Bowel Syndrome MH - Constipation/drug therapy MH - Treatment Outcome MH - Diarrhea/chemically induced/drug therapy/complications MH - Abdominal Pain/drug therapy/etiology/diagnosis MH - Double-Blind Method PMC - PMC10078113 OTO - NOTNLM OT - abdominal pain OT - constipation OT - diarrhea OT - functional colonic diseases OT - gastrointestinal diseases OT - irritable bowel syndrome COIS- BE Lacy is a consultant and/or on the scientific advisory boards for Allakos, Alpha Sigma, Arena Pharmaceuticals, Ironwood, Salix, Sanofi, and Viver and serves on the Rome Board of Directors. J King, D Shortino, C Schaumburg, and C Haag-Molkenteller were employees of Urovant Sciences at the time the work was conducted. WD Chey is a consultant for Abbvie, Allakos, Alnylam, Arena, Bayer, Biomerica, Ironwood, Nestle, QOL Medical, Salix/Valeant, Takeda, Urovant Sciences, and Vibrant; has received grant and/or research study funding from Biomerica, Commonwealth Diagnostics International, QOL Medical, and Salix; has stock options in GI on Demand, Modify Health, and Ritter; serves on the Rome Board of Directors; and is a member of the Board of Trustees of the American College of Gastroenterology and Board of Directors of the International Foundation for Gastrointestinal Disorders. EDAT- 2022/08/18 06:00 MHDA- 2022/12/06 06:00 PMCR- 2023/04/06 CRDT- 2022/08/17 03:02 PHST- 2022/05/20 00:00 [revised] PHST- 2021/12/16 00:00 [received] PHST- 2022/07/12 00:00 [accepted] PHST- 2022/08/18 06:00 [pubmed] PHST- 2022/12/06 06:00 [medline] PHST- 2022/08/17 03:02 [entrez] PHST- 2023/04/06 00:00 [pmc-release] AID - NMO14448 [pii] AID - 10.1111/nmo.14448 [doi] PST - ppublish SO - Neurogastroenterol Motil. 2022 Dec;34(12):e14448. doi: 10.1111/nmo.14448. Epub 2022 Aug 16.