Blood test may end guesswork in Crohn's drug choice
NCT ID NCT07363044
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a simple blood test that reads epigenetic markers can help doctors pick the best biologic drug (ustekinumab or vedolizumab) for adults with active Crohn's disease. 378 participants will be randomly assigned to either have their treatment guided by this test or by standard doctor choice. The goal is to see if the test leads to better remission and fewer side effects.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Epigenetic blood test (EpiPredict) to guide biologic selection (ustekinumab or vedolizumab)
- What this could lead to
- If successful, this test could help doctors pick the most effective biologic for each Crohn's patient, reducing trial-and-error and improving outcomes.
- What could go wrong
- This is an early-phase study with 378 participants, so results may not apply to everyone. The test may not reliably predict response, and some patients may still not respond to the chosen drug.
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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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 378 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Feb 2025
- Expected to finish
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Jan 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
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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18 years and older
- 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 meet all of the following criteria for enrolment into the study: 1. Aged 18 years or older at the time of informed consent. 2. Documented diagnosis of ileal, ileocolonic, or colonic CD (may be confirmed at baseline study endoscopy). 3. Active CD, as defined by HBI \> 6 and SES-CD ≥ 6 for colitis/ileocolitis and ≥ 4 for ileitis only. 4. Eligible to receive either VDZ and/or UST therapy for the treatment of CD per the approved drug label requirements and in the opinion of the treating physician. 5. Must meet all eligibility criteria for biologic therapy initiation as per local SOC, including absence of chronic/opportunistic infections as demonstrated by local protocols for human immunodeficiency virus, tuberculosis, active cytomegalovirus, hepatitis B and C, and Clostridioides difficile infection. Local vaccination protocols apply as per SOC. 6. Nonpregnant and nonlactating. Participants of childbearing potential must agree to follow local SOC guidelines for use of biologics in pregnancy/lactation, including appropriate contraception, during the study; must agree to avoid becoming pregnant from the time of informed consent up until Week 26. 7. If receiving nonbiologic therapies for inflammatory bowel disease, including thiopurines and methotrexate, must have initiated at least 3 months prior to screening and must be on a stable dose for at least 2 weeks prior to screening. 8. If receiving oral corticosteroids, the participant is eligible if they meet all the following criteria: * The dose is up to a maximum of prednisone ≤ 40 mg/day or budesonide ≤ 9 mg/day or equivalent. * The dose has been stable for ≥ 2 weeks prior to screening. * The participant is willing to initiate a corticosteroid taper within 2 weeks after initiating biologic treatment. 9. In the opinion of the investigator, the participant is able to understand and comply with protocol requirements including treatment as assigned per the protocol. 10. Able to participate fully in all aspects of this clinical study. Full comprehension of consent language and informed consent must be obtained from the participant, or the participant's legally acceptable representative, and documented Exclusion Criteria: Participants who meet any of the following criteria are to be excluded from the study: 1. Prior treatment with VDZ or UST. 2. Prior treatment with more than 1 advanced therapy (eg, any biologic \[ie, anti- tumour necrosis factor (TNF), anti-interleukin, anti-integrin\]) or advanced oral small molecule \[ie, Janus kinase inhibitor\]) for CD. 3. CD-related complications that in the opinion of the investigator would interfere with participation in the study, including but not limited to: * Ileorectal anastomosis (rectum \< 15 cm), or a proctocolectomy. * Short bowel syndrome. * All ostomies. * Symptomatic strictures in the bowel or symptomatic strictures in the ileum or ileocecal valve that have a stenosis. * Suspected or diagnosed active intra-abdominal or perianal abscess that have not been appropriately treated. 4. History or current diagnosis of ulcerative colitis (unless this diagnosis was made erroneously), indeterminate colitis, idiopathic colitis (ie, colitis not consistent with CD), microscopic colitis, or colonic mucosal dysplasia (excluding dysplasia in resected adenomas). 5. Increased risk of infectious complications (eg, recent pyogenic infection, any congenital or acquired immunodeficiency, or past organ, bone marrow, or stem cell transplantation). 6. Any topical rectal therapy for treatment of CD within 2 weeks prior to the screening endoscopy. 7. Nonsteroidal anti-inflammatory drugs (NSAIDs) as chronic treatment, except for cyclooxygenase-2logic selective NSAIDS (celecoxib). 8. Faecal microbiota transplant (includes human microbiota-based therapeutics) within 4 weeks prior to randomisation. 9. Any major surgery (in the investigator's opinion) performed within 8 weeks prior to randomisation or planned during the study. 10. History of excessive alcohol or drug abuse that, in the opinion of the investigator, may interfere with the participant's ability to comply with the study procedures. 11. Serious underlying disease other than CD that in the opinion of the investigator may interfere with the participant's ability to participate fully in the study or would compromise participant safety (such as history of malignancies, major neurological disorders, any unstable or uncontrolled medical disorder, or any known or suspected contraindication to any of the study biologics according to local prescribing information).
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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
39 sites in 5 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. 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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AZ Delta VZW
RECRUITINGRoeselare, Belgium
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AZ Klina
RECRUITINGBrasschaat, Belgium
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AZ Maria Middelares
RECRUITINGGhent, Belgium
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AZ Oostende
RECRUITINGOstend, Belgium
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AZ Sint Lucas
RECRUITINGGhent, Belgium
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Agostino Gemelli University Policlinic
NOT_YET_RECRUITINGRoma, Italy
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Amsterdam UMC
RECRUITINGAmsterdam, Netherlands
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Azienda Ospedaliero Universitaria Careggi Padiglione San Luca Nuovo
RECRUITINGFlorence, Italy
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CHU UCL Namur asbl Site Godinne
RECRUITINGYvoir, Belgium
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Cambridge University Hospitals NHS Trust
RECRUITINGCambridge, United Kingdom
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Cardiff & Vale UHB
RECRUITINGLlandough, United Kingdom
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Centre Hospitalier Universitaire (CHU) de Liege
RECRUITINGLiège, Belgium
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Elisabeth-TweeSteden Ziekenhuis (ETZ)
RECRUITINGTilburg, Netherlands
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Flevoziekenhuis Hospitaalweg 1
NOT_YET_RECRUITINGAlmere Stad, Netherlands
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GZA Antwerpen
NOT_YET_RECRUITINGAntwerp, Belgium
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Groupe sante CHC/Clique du MontLegia
RECRUITINGLiège, Belgium
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Guy's and St. Thomas' NHS Foundation Trust
RECRUITINGLondon, United Kingdom
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H.U.B. - Hôpital Erasme
RECRUITINGBrussels, Belgium
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Hampshire Hospital NHS Foundation Trust
RECRUITINGWinchester, United Kingdom
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Hull University Teaching Hospital NHS Trust
RECRUITINGCottingham, United Kingdom
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IRCCS "Saverio de Bellis", National Institute of Gastroenterology
NOT_YET_RECRUITINGCastellana Grotte, Italy
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IRCCS Ospedale San Raffaele
RECRUITINGMilan, Italy
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Imeldahospital
RECRUITINGBonheiden, Belgium
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King's College Hospital NHS Foundation Trust
RECRUITINGLondon, United Kingdom
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Maastricht UMC
RECRUITINGMaastricht, Netherlands
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Northern Care Alliance - Fairfield General Hospital
RECRUITINGBury, United Kingdom
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OLVG Oost
RECRUITINGAmsterdam, Netherlands
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Oxford University Hospitals NHS Foundation Trust
RECRUITINGOxford, United Kingdom
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Radboudumc
RECRUITINGNijmegen, Netherlands
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San Camillo-Forlanini Hospital
NOT_YET_RECRUITINGRome, Italy
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The Dudley Group NHS Foundation Trust
RECRUITINGDudley, United Kingdom
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UKC Ljubljana
NOT_YET_RECRUITINGLjubljana, Slovenia
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UOC di Gastroenterologia ed Endoscopia Digestiva
NOT_YET_RECRUITINGSan Giovanni Rotondo, Italy
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UZ Ghent
RECRUITINGGhent, Belgium
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UZ Leuven
RECRUITINGLeuven, Belgium
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UZ Leuven Gasthuisberg
RECRUITINGLeuven, Belgium
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Universitair Medisch Centrum Utrecht
RECRUITINGUtrecht, Netherlands
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Universitair Ziekenhuis Antwerpen (UZA)
RECRUITINGEdegem, Belgium
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University Hospital Southampton NHS Foundation Trust
RECRUITINGSouthampton, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
- Triple-Pronged attack on gut inflammation put to the test
- Can tissue clues predict which Crohn's patients relapse after surgery?
- Exercise as a potential remedy for IBD-related fatigue
- AI reads capsule endoscopy videos to hunt for Crohn's lesions
- Can a simple ultrasound replace MRI for fistula diagnosis?
- A 7,000-person study hunts for hidden clues that predict Crohn's and colitis