Evaluating Tulisokibart for Moderate to Severe Crohn's Disease
Official title: A Phase 3, Randomized, Double-Blind, Placebo-Controlled Program to Evaluate the Efficacy and Safety of Tulisokibart in Participants With Moderately to Severely Active Crohn's Disease
Run by Merck Sharp & Dohme LLC · NCT06430801 · Data updated 2026-11-12
This study is testing if a new drug called tulisokibart can help people with moderate to severe Crohn's disease feel better compared to a placebo.
Quick facts
| Phase | Phase 3 |
|---|---|
| Study type | Interventional |
| Ages | 16 Years to 80 Years |
| Sex | All |
| Enrollment | 1200 (estimated) |
| Sponsor | Merck Sharp & Dohme LLC Industry-sponsored |
| Locations | 499 sites (Dothan, Alabama and 498 other locations) |
| Status | Recruiting |
| Started | June 5, 2024 |
| Main results expected | October 30, 2028 |
| Study ends | November 12, 2029 |
| Registry record updated | November 10, 2026 |
| Trial ID | NCT06430801 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Ideal candidates include individuals aged 16 and older with a diagnosis of Crohn's disease who have not responded adequately to previous treatments.
✕Probably not a fit
Patients with ulcerative colitis or those whose Crohn's disease is limited to certain areas of the gastrointestinal tract may not benefit from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This clinical trial aims to assess the efficacy and safety of tulisokibart in patients with moderately to severely active Crohn's disease. The study consists of two parts: one focusing on both induction and maintenance treatment, and the other on induction treatment alone. Participants will receive either the active drug or a placebo, and outcomes will be measured based on clinical remission and endoscopic response at specified time points. The trial seeks to determine if tulisokibart can provide significant improvements over placebo in managing Crohn's disease symptoms.
Why it matters
Potential benefit: If successful, this treatment could offer a new effective option for patients struggling with moderate to severe Crohn's disease.
How similar studies have gone: Previous studies have shown promise with similar biologic therapies for Crohn's disease, indicating potential for success with this approach.
Who can join: the full rules
Show full inclusion / exclusion criteria
The main inclusion and exclusion criteria include but are not limited to the following: Inclusion Criteria: * Has had a diagnosis of Crohn's disease (CD) at least 3 months before study. * Has moderately to severely active CD. * Demonstrated inadequate response, loss of response, or intolerance to one or more of the following categories of drugs: oral locally acting steroids, systemic steroids, immunomodulators, biologic and/or small molecule advanced therapies. * Adolescent participants ≥16 and \<18 years of age can participate if approved by the country or regulatory/health authority. Exclusion Criteria: * Has diagnosis of ulcerative colitis (UC) or indeterminate colitis. * Has CD isolated to the stomach, duodenum, jejunum, or perianal region, without colonic and/or ileal involvement. * Currently has any of the following complications of CD: suspected or diagnosed with intra-abdominal or perianal abscess, known symptomatic stricture or colonic stenosis not passable in endoscopy, fulminant colitis, toxic megacolon, or any other manifestation that might require surgery while enrolled in the study. * Has current stoma or need for colostomy or ileostomy. * Is missing \>2 segments of the following 5 segments: terminal ileum, right colon, transverse colon, sigmoid and left colon, and rectum. * Has been diagnosed with short gut or short bowel syndrome, or any other uncontrolled chronic diarrhea besides CD. * Has surgical bowel resection within 3 months of study. * Has prior or current gastrointestinal dysplasia. * Has chronic infection requiring ongoing antimicrobial treatment. * Has a history of cancer (except fully treated non-melanoma skin cell cancers or cervical carcinoma in situ after complete surgical removal) and is disease free for \<5 years. * Is infected with Hepatitis B virus (HBV), Hepatitis C virus (HCV), or human immunodeficiency virus (HIV). * Has active tuberculosis. * Has confirmed or suspected coronavirus disease of 2019 (COVID-19) infection. * Prior exposure to tulisokibart (MK-7240, PRA023) or another anti-tumor necrosis factor-like cytokine 1A (TL1A) antibody (Ab).
Where it's running
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GI Alliance - Sun City ( Site 5118)
Sun City, Arizona, United States Recruiting -
University of Arizona Clinical and Translational Sciences Research Center ( Site 5111)
Tucson, Arizona, United States Recruiting -
University of Arkansas for Medical Sciences ( Site 5147)
Little Rock, Arkansas, United States Recruiting -
Clinnova Research ( Site 5110)
Anaheim, California, United States Recruiting -
Southern California Research Center ( Site 5044)
Coronado, California, United States Recruiting -
Om Research LLC ( Site 5038)
Lancaster, California, United States Recruiting
Show 44 more locations
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Cedars Sinai Medical Center ( Site 5080)
Los Angeles, California, United States Recruiting -
UCLA Clinical & Translational Research Center (CTRC) ( Site 5116)
Los Angeles, California, United States Recruiting -
University of California, Irvine (UCI) Health - UC Irvine Medical Center ( Site 5128)
Orange, California, United States Recruiting -
Om Research LLC ( Site 5045)
Oxnard, California, United States Recruiting -
Clinical Applications Laboratories ( Site 5123)
San Diego, California, United States Recruiting -
University of Colorado Anschutz Medical Campus-Division of Gastroenterology and Hepatology ( Site 5026)
Aurora, Colorado, United States Recruiting -
Peak Gastroenterology Associates ( Site 5023)
Colorado Springs, Colorado, United States Recruiting -
South Denver Gastroenterology, PC ( Site 5132)
Englewood, Colorado, United States Recruiting -
Rocky Mountain Gastroenterology ( Site 5082)
Lakewood, Colorado, United States Recruiting -
Yale University School of Medicine-Digestive Disease ( Site 5019)
New Haven, Connecticut, United States Recruiting -
Emerson Clinical Research Institute ( Site 5051)
Washington D.C., District of Columbia, United States Recruiting -
Covenant Metabolic Specialists, LLC ( Site 5150)
Fort Myers, Florida, United States Recruiting -
Nature Coast Clinical Research - Inverness ( Site 5042)
Inverness, Florida, United States Recruiting -
Sanchez Clinical Research ( Site 5144)
Miami, Florida, United States Recruiting -
AdventHealth Orlando ( Site 5131)
Orlando, Florida, United States Recruiting -
Endoscopic Research Inc ( Site 5061)
Orlando, Florida, United States Recruiting -
USF Health Carol and Frank Morsani Center for Advanced Healthcare ( Site 5039)
Tampa, Florida, United States Recruiting -
Covenant Metabolic Specialists, LLC ( Site 5143)
University Park, Florida, United States Recruiting -
Morehouse School Of Medicine ( Site 5071)
Atlanta, Georgia, United States Recruiting -
Gastroenterology Associates of Central Georgia ( Site 5048)
Macon, Georgia, United States Recruiting -
University of Chicago Medical Center ( Site 5066)
Chicago, Illinois, United States Recruiting -
Endeavor Health ( Site 5018)
Evanston, Illinois, United States Recruiting -
GI ALLIANCE - GURNEE ( Site 5003)
Gurnee, Illinois, United States Recruiting -
Indiana University Health University Hospital ( Site 5022)
Indianapolis, Indiana, United States Recruiting -
Iowa Digestive Disease Center ( Site 5007)
Clive, Iowa, United States Recruiting -
University of Kansas Medical Center ( Site 5091)
Kansas City, Kansas, United States Recruiting -
Cotton O'Neil Digestive Health Center ( Site 5033)
Topeka, Kansas, United States Recruiting -
University of Louisville Hospital ( Site 5120)
Louisville, Kentucky, United States Recruiting -
Walter Reed National Military Medical Center ( Site 5006)
Bethesda, Maryland, United States Recruiting -
Massachusetts General Hospital-Crohn's and Colitis Center ( Site 5037)
Boston, Massachusetts, United States Recruiting -
University of Michigan ( Site 5060)
Ann Arbor, Michigan, United States Recruiting -
Clinical Research Institute of Michigan, LLC ( Site 5002)
Clinton Township, Michigan, United States Recruiting -
Mayo Clinic in Rochester, Minnesota ( Site 5024)
Rochester, Minnesota, United States Recruiting -
Mid-America GI Clinical Research ( Site 5130)
Kansas City, Missouri, United States Recruiting -
BVL Research - Kansas ( Site 5099)
Liberty, Missouri, United States Recruiting -
Washington University School of Medicine ( Site 5058)
St Louis, Missouri, United States Recruiting -
HMH Justice Marie Garibaldi Medical Plaza ( Site 5072)
Hackensack, New Jersey, United States Recruiting -
Northwell Health Physician Partners Center for Advanced IBD Care ( Site 5017)
Great Neck, New York, United States Recruiting -
NYU Langone Health - Inflammatory Bowel Disease Center (IBD) ( Site 5078)
New York, New York, United States Recruiting -
Weill Cornell Medical College, New-York Presbyterian Hospital ( Site 5079)
New York, New York, United States Recruiting -
New York Gastroenterology Associates ( Site 5013)
New York, New York, United States Recruiting -
Northwell Mather Hospital ( Site 5138)
Port Jefferson, New York, United States Recruiting -
University of North Carolina Medical Center ( Site 5034)
Chapel Hill, North Carolina, United States Recruiting -
Atrium Health Gastroenterology MMP ( Site 5105)
Charlotte, North Carolina, United States Recruiting
+449 more sites. See ClinicalTrials.gov for the full list.
Study contacts
- Study coordinator: Toll Free Number
- Email: Trialsites@msd.com
- Phone: 1-888-577-8839
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
-
Iron treatment for children and young adults with Crohn’s disease and iron deficiency anemia
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-
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-
SL-325 in Crohn's Disease: a phase 2 test for adults with moderate to severe disease
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Tabellvi for moderate to severe Crohn's disease in Chinese adults
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.