RecruitingPhase 2NCT07545772

A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Constipation (IBS-C)

A Phase 2, Randomized, Double-Blind, Placebo-Controlled Study to Evaluate the Efficacy and Safety of Brenipatide in the Treatment of Adult Participants With IBS-C


Sponsor

Eli Lilly and Company

Enrollment

342 participants

Start Date

Apr 29, 2026

Study Type

INTERVENTIONAL

Conditions

Summary

The purpose of this study is to evaluate how well brenipatide (LY3537031) is tolerated what side effects may occur, and the safety and efficacy in participants with Irritable Bowel Syndrome-Constipation (IBS-C). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo. The study will last approximately 35 weeks.


Eligibility

Min Age: 18 YearsMax Age: 75 Years

Inclusion Criteria3

  • Meets Rome IV criteria for irritable bowel syndrome-constipation (IBS-C) including having more than 25% bowel movements with Bristol Stool Form Scale (BSFS) Types 1 or 2 and less than 25% of bowel movements with BSFS Types 6 or 7
  • Based on the daily eDiary collection during the screening period:
  • Have average of worst abdominal pain score of ≥3.0 on a 0-to-10-point scale during the 14 consecutive days prior to randomization

Exclusion Criteria3

  • Have a diagnosis of irritable bowel syndrome (IBS) with a subtype of diarrhea, mixed IBS, or unclassified IBS by the Rome IV criteria
  • Have a history of inflammatory or immune-mediated gastrointestinal disorders
  • Have a known clinically significant gastric emptying abnormality

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Interventions

DRUGLY3537031

Administered SC.

DRUGPlacebo

Administered SC.


Locations(1)

Gastroenterology Health Partners Loc. 1

Louisville, Kentucky, United States

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NCT07545772


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