New drug hope for kids with Crohn's: mirikizumab enters final testing
NCT ID NCT05509777
First seen Jun 25, 2026 · Last updated Aug 25, 2026 · Updated 4 times
Summary
This phase 3 trial tests mirikizumab, an injected drug, in 90 children with moderate-to-severe Crohn's disease. The study looks at whether the drug can improve symptoms and heal the gut lining over 52 weeks. Participants receive mirikizumab during a 12-week induction period, then continue into a maintenance phase.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- mirikizumab
- What this could lead to
- If successful, this could provide a new treatment option for children with moderate-to-severe Crohn's disease, helping control symptoms and reduce gut inflammation.
- What could go wrong
- This is still an experimental drug; it may not work better than existing treatments, and side effects like infections or allergic reactions are possible. The trial is also relatively small (90 participants).
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Phase 3
Large-scale testing in a bigger group. Usually the last step before a treatment can be approved.
- Participants
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About 90 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2024
- Expected to finish
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Apr 2028
An estimate. End dates often move.
- Lead sponsor
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A company
The lead sponsor is a pharmaceutical, biotech, or medical-device company.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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2 to 17 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Participants must have a diagnosis of CD or fistulizing CD, with active colitis, ileitis, or ileocolitis, confirmed at any time in the past by clinical, endoscopic, and histologic criteria. * Participants have moderately to severely active CD (as defined by a baseline PCDAI score ≥30). * Participants must have endoscopy with evidence of active CD defined as SES-CD score ≥6 (or ≥4 for participants with isolated ileal disease) within 1 month of receiving study intervention at Week 0. * Participants must have a documented history of inadequate response, loss of response or intolerance to at least one medication used to treat CD, which may include immunomodulators, oral or IV corticosteroids, a biologic therapy or a JAK inhibitor. Exclusion Criteria: * Participants must not have complications of CD such as symptomatic strictures or stenosis, short gut syndrome, or any other manifestations that might be anticipated to require surgery. * Participants must not have an abscess. * Participants must not have any kind of bowel resection within 26 weeks or any other intra-abdominal surgery within 12 weeks of baseline.
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Get notified about this study
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
80 sites in 15 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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AKH - Medizinische Universtität Wien
RECRUITINGVienna, 1090, Austria
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Akershus Universitetssykehus
RECRUITINGNordbyagen, 01474, Norway
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Asst Papa Giovanni Xxiii Bergamo
RECRUITINGBergamo, 24127, Italy
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Atlantic Children's Health--Pediatric Gastroenterology
NOT_YET_RECRUITINGMorristown, New Jersey, 07960, United States
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Azienda Ospedaliero-Universitaria SS. Antonio e Biagio e C. Arrigo
NOT_YET_RECRUITINGAlessandria, 15121, Italy
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Azienda USL di Bologna
RECRUITINGBologna, 40133, Italy
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Boston Children's Hospital
NOT_YET_RECRUITINGBoston, Massachusetts, 02115, United States
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Cedars Sinai Medical Center
NOT_YET_RECRUITINGLos Angeles, California, 90048, United States
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Centro Clínico Académico - Braga (2CA-Braga) (Hospital de Braga)
RECRUITINGBraga, 4710-243, Portugal
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Centro Hospitalar de Lisboa Norte, E.P.E. - Hospital de Santa Maria
RECRUITINGLisbon, 1649-035, Portugal
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Centro Hospitalar de São João, E.P.E.
RECRUITINGPorto, 4200 319, Portugal
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Children's & Women's Health Centre of British Columbia
NOT_YET_RECRUITINGVancouver, V6H 3V4, Canada
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Children's Center for Digestive Health Care, LLC
RECRUITINGAtlanta, Georgia, 30342, United States
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Children's Hospital of Philadelphia
RECRUITINGPhiladelphia, Pennsylvania, 19146, United States
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Childrens Medical Center
RECRUITINGDayton, Ohio, 45404, United States
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Cliniques universitaires Saint-Luc
RECRUITINGBrussels, 1200, Belgium
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Columbia University Medical Center/New York Presbyterian
RECRUITINGNew York, New York, 10032, United States
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Connecticut Children's Medical Center
RECRUITINGHartford, Connecticut, 06032, United States
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Cook Children's Medical Center
RECRUITINGFort Worth, Texas, 76104, United States
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Corporacio Sanitaria Parc Tauli
RECRUITINGSabadell, 08208, Spain
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Emory University
RECRUITINGAtlanta, Georgia, 30322, United States
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Erasmus Medisch Centrum
RECRUITINGRotterdam, 3015 CN, Netherlands
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Gastroenterologia ed epatologia pediatrica (Piano terra della Clinica Pediatrica)
RECRUITINGRoma, CAP 00161, Italy
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Great Ormond Street Hospital For Children NHS Foundation Trust
RECRUITINGLondon, WC1N 3JH, United Kingdom
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Hadassah University Hospital, Ein Kerem,
RECRUITINGJerusalem, 9112001, Israel
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Hirosaki University Hospital
RECRUITINGHirosaki, 036, Japan
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Hospital PUC-CAMPINAS
RECRUITINGCampinas, 13060-904, Brazil
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Hospital Pequeno Príncipe
RECRUITINGCuritiba-PR, 80250-060, Brazil
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Hospital Universitari i Politecnic La Fe
RECRUITINGValencia, 46026, Spain
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Hospital Universitario Reina Sofia
RECRUITINGCórdoba, 14004, Spain
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Hospital das Clínicas - UFG (Universidade Federal de Goiás)
RECRUITINGGoiânia, 74605-050, Brazil
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Hospital de Clínicas de Porto Alegre
RECRUITINGPorto Alegre, 90035-903, Brazil
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IWK Health Centre
RECRUITINGHalifax, B3K 6R8, Canada
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Icahn School of Medicine at Mount Sinai
RECRUITINGNew York, New York, 10029, United States
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Inje University Haeundae Paik Hospital
RECRUITINGBusan, 48108, South Korea
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Instytut Pomnik-Centrum Zdrowia Dziecka
RECRUITINGWarsaw, 04-730, Poland
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Integral Pesquisa e Ensino
RECRUITINGVotuporanga, 15501 405, Brazil
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Irmandade da Santa Casa de Misericórdia de Porto Alegre
RECRUITINGPorto Alegre, 90050-170, Brazil
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Juntendo University Hospital
RECRUITINGBunkyō City, 113-8431, Japan
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Kagoshima University Hospital
RECRUITINGKagoshima, 890-8520, Japan
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Kaplan Medical Center, Pediatric Gastroenterology Dept.
NOT_YET_RECRUITINGRehovot, 7661041, Israel
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Kobe University Hospital
RECRUITINGKobe, 650-0017, Japan
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Kokikai Tsujinaka Hospital Kashiwanoha
RECRUITINGKashiwa-shi, 277-0871, Japan
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Korczowski Bartosz, Gabinet Lekarski
RECRUITINGRzeszów, 35-302, Poland
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Kyungpook National University Chilgok Hospital
RECRUITINGDaegu, 41404, South Korea
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London Health Sciences Centre (LHSC) - Victoria Hospital
RECRUITINGLondon, N6A 5W9, Canada
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Manchester University NHS Foundation Trust
RECRUITINGManchester, M139WL, United Kingdom
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Mie University Hospital
NOT_YET_RECRUITINGTsu, 514-8507, Japan
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Miyagi Children's Hospital
RECRUITINGSendai, 989 3126, Japan
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NDI - Nucleo de Doenças Infecciosas
RECRUITINGSantos Dumont, 29040-091, Brazil
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National Center for Child Health and Development
RECRUITINGSetagaya-ku, 157-8535, Japan
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Oslo University Hospital
RECRUITINGOslo, 0450, Norway
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Ospedale dei Bambini Vittore Buzzi
RECRUITINGMilan, 20154, Italy
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Oxford University Hospitals NHS trust John Radcliffe hospital
RECRUITINGHeadington, OX3 9DU, United Kingdom
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Riley Childrens Hospital
RECRUITINGIndianapolis, Indiana, 46202, United States
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Royal Hospital for Children and Young People
RECRUITINGEdinburgh, EH16 4TJ, United Kingdom
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Royal London Hospital
RECRUITINGWhitechapel, E1 1FR, United Kingdom
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SOC Gastroenterologia e Nutrizione - AOU Meyer (Primo Piano Ala OVEST, accettazione DH centralizzato)
RECRUITINGFlorence, 50139, Italy
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Saga University Hospital
RECRUITINGSaga, 849-8501, Japan
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Saiseikai Yokohamashi Tobu Hospital
NOT_YET_RECRUITINGYokohama, 2308765, Japan
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Samsung Medical Center
RECRUITINGSeoul, 06351, South Korea
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Schneider Children's Medical Center
RECRUITINGPetah Tikva, 4920235, Israel
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Seattle Children's Hospital
NOT_YET_RECRUITINGSeattle, Washington, 98105, United States
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Seoul National University Hospital
RECRUITINGSeoul, 3080, South Korea
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Severance Hospital, Yonsei University Health System
RECRUITINGSeoul, 03722, South Korea
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Shaare Zedek
RECRUITINGJerusalem, 9103102, Israel
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Shamir Medical Center (Assaf Harofeh)
RECRUITINGIsrael, 70300, Israel
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Sheffield Children's Hospital
RECRUITINGSheffield, S10 2RX, United Kingdom
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Soroka Medical Center
RECRUITINGBeersheba, 8410101, Israel
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St-Olavs Hospital
RECRUITINGTrondheim, 7030, Norway
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The Hospital for Sick Children
RECRUITINGToronto, M5G 1X8, Canada
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URC CIC
TERMINATEDParis, 75015, France
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UZ Leuven
RECRUITINGLeuven, 3000, Belgium
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Universitair Ziekenhuis Brussel
RECRUITINGBrussels, 1090, Belgium
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Universitair Ziekenhuis Gent
RECRUITINGGhent, 9000, Belgium
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Universitetssykehuset Nord-Norge
RECRUITINGTromsø, 9038, Norway
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University of Vermont Medical Center
RECRUITINGBurlington, Vermont, 05401, United States
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Warsaw IBD Point Profesor Kierkus
RECRUITINGWarsaw, 00-728, Poland
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Weill Cornell Medical College (WCMC) - Judith Jaffe Multiple Sclerosis Center (JJMSC)
RECRUITINGNew York, New York, 10021-5663, United States
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Yamaguchi University Hospital
RECRUITINGUbe, 755-8505, Japan
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Yokohama City University Medical Center, Center of IBD
RECRUITINGYokohama, 232-0024, Japan
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Staph bacteria may hold clues to painful skin rashes in IBD patients on Anti-TNF therapy
- Swallow a camera pill to diagnose Crohn's? trial puts it to the test
- Can a drug plus surgery heal Crohn's fistulas for good?
- Do vegan yogurts and meat substitutes really boost your gut?
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