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A Study of Brenipatide (LY3537031) in Participants With Irritable Bowel Syndrome-Diarrhea (IBS-D)

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-D

Status
Recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07545759
Acronym
RENEW-IBS-D
Enrollment
531
Registered
2026-04-22
Start date
2026-05-06
Completion date
2027-11-01
Last updated
2026-09-17

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Diarrhea, Irritable Bowel Syndrome

Brief 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-Diarrhea (IBS-D). The study drug will be administered subcutaneously (SC) (under the skin) when compared with placebo. The study will last approximately 36 weeks.

Interventions

Administered SC

DRUGPlacebo

Administered SC

Sponsors

Eli Lilly and Company
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Meet Rome IV criteria for IBS-D, which includes having greater than 25% of bowel movements with Bristol Stool Form Scale (BSFS) Types 6 or 7 and \<25% of bowel movements with BSFS Types 1 or 2 * 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 * Have at least 4 days per week with a maximum BSFS ≥5 AND with at least 2 days of the 4 days per week with a maximum BSFS ≥6 during the 14 consecutive days prior to randomization * Have had no major changes in diet in the 4 weeks prior to screening

Exclusion criteria

* Have a diagnosis of IBS with a subtype of constipation, 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

Design outcomes

Primary

MeasureTime frame
Percentage of Participants Who Had a Daily Composite Response for at Least 50 Percent (%) of DaysWeek 9 to Week 16

Secondary

MeasureTime frame
Percentage of Participants Who Had a Daily Abdominal Pain Response for at Least 50% of DaysWeek 9 to Week 16
Percentage of Participants Who Had Daily Stool Consistency Response for at Least 50% of DaysWeek 1 to Week 24
Percentage of Participants Who Had a Daily Composite ResponseDay 1 through Week 24

Countries

Belgium, Canada, China, Germany, Japan, Mexico, Poland, Spain, United Kingdom, United States

Contacts

CONTACTTrial questions or participation questions: 1-877-CTLILLY (1-877-285-4559) or
LillyTrials@Lilly.com1-317-615-4559
CONTACTPhysicians interested in becoming principal investigators please contact
clinical_inquiry_hub@lilly.com
STUDY_DIRECTORCall 1-877-CTLILLY (1-877-285-4559) or 1-317-615-4559 Mon - Fri 8 AM - 8 PM Eastern time (UTC/GMT - 5 hours, EST)

Eli Lilly and Company

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 18, 2026