A Master Protocol (IIBD): A Study of Multiple Drugs in Adults With Ulcerative Colitis or Crohn's Disease

Recruiting now · Phase 2

Conditions studied: Colitis, Ulcerative, Crohn Disease

In brief

Study IIBD is a master protocol that will support a collection of individual sub studies that share key design components. Participants will be assigned to the appropriate study prior to randomization to a treatment group. The studies aim to evaluate the efficacy and safety of new treatments in adults with moderately to severely active ulcerative colitis or Crohn's disease and will last at least 62 weeks.

Key facts

Study ID

NCT07483073

Run by

Eli Lilly and Company

People needed

60

Starts

2026-05-04

Expected to finish

2028-03-01

Last updated by the study team

2026-08-06

Who can join

Age: 18 and older, up to 80. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Must have an established diagnosis of Ulcerative Colitis (UC) or Crohn's Disease (CD) for at least 3 month duration, which includes clinical and endoscopic evidence of UC or CD and a histopathology report that supports a diagnosis of UC or CD.
• For UC:
• Have moderately to severely active UC as defined by a modified Mayo score (mMS) of 5-9 points and Endoscopic Subscore (ES) greater than or equal to (≥) 2, confirmed by the central reader and rectal bleeding (RB)≥1, with endoscopy performed within 21 days prior to Visit 2.
• For CD:
• Have moderately to severely active CD as defined by a Crohn's disease activity index (CDAI) score ≥ 220 and less than or equal to (≤) 450. Have a centrally read Simple Endoscopic Score for Crohn's Disease (SES-CD) score ≥6 for participants with ileal-colonic or ≥4 for participants with isolated ileal disease within 21 days before the randomization
• Must have demonstrated an inadequate response, loss of response, or intolerance to at least one of the following: corticosteroids, immunomodulators, or an advanced therapy for UC or CD
• Have screening laboratory test results within the protocol specified parameters.

You may not qualify if…

• Must not have a current diagnosis of inflammatory bowel disease (IBD)-unclassified or primary sclerosing cholangitis
• For UC - must not have a current diagnosis of CD
• For CD - must not have a current diagnosis of UC
• Must not have had or will need bowel resection or intestinal or intra-abdominal surgery as specified in the protocol
• Must not have complications of UC or CD, including but not limited to stricture or stenosis (some exceptions allowed for CD) or short bowel syndrome
• Must not have a significant uncontrolled illness that in the opinion of the investigator may compromise the participant's safety or interfere with interpretation of data
• Must not have failed more than 5 approved advanced treatments for UC or CD with different mechanisms of action
• Must not have failed an anti-interleukin-23p19 (anti-IL-23p19) antibody treatment
• Must not have received or will need any prohibited medications for UC or CD as specified in the protocol

Where it is running

• Zhongshan Hospital Affiliated to Xiamen University — Xiamen, China (enrolling)
• Hadassah Medical Center — Jerusalem, Israel (enrolling)
• The First Affiliated Hospital, Sun Yat-sen University — Guangzhou, China (enrolling)
• The Second Affiliated Hospital YuYing Childens Hospital of Wenzhou Medical university — Wenzhou, China (enrolling)
• Rambam Health Care Campus — Haifa, Israel (enrolling)
• Shaare Zedek Medical Center — Jerusalem, Israel (enrolling)
• Tdda Inc. — Vaughan, Canada (enrolling)
• Changzhou Second People's Hospital — Changzhou, China (enrolling)
• The Second Affiliated hospital of Zhejiang University school of medicine — Hangzhou, China (enrolling)
• The Second Affiliated Hospital of Soochow University — Suzhou, China (enrolling)
• Affiliated Hospital of Jiangsu University — Zhenjiang, China (enrolling)
• Ezy Medical Research — Miami Lakes, Florida, United States (enrolling)
• Southern Star Research Institute — San Antonio, Texas, United States (enrolling)
• Atlanta Gastroenterology Associates - Peachtree Dunwoody — Atlanta, Georgia, United States (enrolling)
• South Denver Gastroenterology — Englewood, Colorado, United States (enrolling)
• Biopharma Informatic, LLC — Los Angeles, California, United States (enrolling)
• Cotton O'Neil Digestive Health Center — Topeka, Kansas, United States (enrolling)
• The Second Xiangya Hospital of Central South University — Changsha, China (enrolling)
• Gastroenterology Associates of Western Michigan, PLC d.b.a. West Michigan Clinical Research Center — Wyoming, Michigan, United States (enrolling)
• Gastro Health Research - Miami — Miami, Florida, United States (enrolling)
• KAD Clinical Research — St Louis, Missouri, United States (enrolling)
• Huizhou Central People's Hospital — Huizhou, China (enrolling)
• Vector Clinical Trials — Las Vegas, Nevada, United States (enrolling)
• Om Research LLC — Oxnard, California, United States (enrolling)
• Rabin Medical Center — Petah Tikva, Israel (enrolling)

Full record on ClinicalTrials.gov

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