A Prospective Randomised Study of Treatment Selection Based on Epigenetic Markers Versus Standard of Care Treatment Selection in Adults With CROHN's Disease
OMICROHN
1 other identifier
interventional
378
4 countries
30
Brief Summary
This is a multicentre, prospective, randomised, controlled, open-label study to assess the efficacy, safety, and cost-effectiveness of epigenome-guided treatment selection compared to usual standard-of-care (SOC) treatment selection in patients initiating biologic therapy for the treatment of their active Crohn's Disease (CD).
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Feb 2025
Longer than P75 for not_applicable
30 active sites
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
Study Start
First participant enrolled
February 1, 2025
CompletedFirst Submitted
Initial submission to the registry
January 15, 2026
CompletedFirst Posted
Study publicly available on registry
January 23, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
June 1, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
January 1, 2029
January 23, 2026
January 1, 2026
2.3 years
January 15, 2026
January 15, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
To compare the efficacy of epigenome-guided treatment selection to usual SOC treatment selection for inducing clinical remission and endoscopic response at Week 26 in participants with active CD.
Corticosteroid-free clinical remission (Harvey-Bradshaw Index \[HBI\] score ≤ 4) and endoscopic response (≥ 50% decrease from baseline in the Simple Endoscopic Score for Crohn's Disease \[SES-CD\])
Baseline to Week 26
Secondary Outcomes (3)
To explore the optimal threshold of EpiPredict results in predicting treatment response using data from participants assigned to the epigenome-guided treatment selection group
Baseline to Week 26
To compare the efficacy of epigenome-guided treatment selection to usual SOC treatment selection for improving clinical and endoscopic outcome measures at Week 26 in participants with active CD
Baseline to Week 26
To evaluate the cost-effectiveness of epigenome-guided treatment selection compared to usual SOC treatment selection
Baseline to 24 Months
Other Outcomes (3)
To assess the safety of a treatment based on epigenome-guided treatment selection compared to usual SOC treatment selection
Baseline to Week 26
To explore additional efficacy measures of epigenome-guided treatment selection compared to usual SOC treatment selection at Week 26 in participants with active CD.
Baseline to Week 26
In a subset (~30%) of participants, to evaluate response by intestinal ultrasound (IUS) in participants assigned to epigenome-guided treatment selection compared to usual SOC treatment selection
Baseline to Week 26
Study Arms (2)
Investigator-Guided Treatment Arm
OTHEREpigenome-Guided Treatment Arm
EXPERIMENTALInterventions
Participants will receive UST or VDZ biologic therapy as indicated by an epigenome read-out of peripheral blood using a hybrid capture-based methylation assay. The assay and EpiPredict software will indicate the probability of response to VDZ and UST. The biologic with the predicted highest likelihood of success will be communicated to the investigator and the biologic initiated using standard dosing regimens.
Assigned to UST or VDZ per conventional SOC and without the use or knowledge of epigenome results.
Eligibility Criteria
You may qualify if:
- Participants must meet all of the following criteria for enrolment into the study:
- Aged 18 years or older at the time of informed consent.
- Documented diagnosis of ileal, ileocolonic, or colonic CD (may be confirmed at baseline study endoscopy).
- Active CD, as defined by HBI \> 6 and SES-CD ≥ 6 for colitis/ileocolitis and ≥ 4 for ileitis only.
- 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.
- 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.
- 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.
- 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.
- 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.
- In the opinion of the investigator, the participant is able to understand and comply with protocol requirements including treatment as assigned per the protocol.
- 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
You may not qualify if:
- Participants who meet any of the following criteria are to be excluded from the study:
- Prior treatment with VDZ or UST.
- 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.
- 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.
- 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).
- Increased risk of infectious complications (eg, recent pyogenic infection, any congenital or acquired immunodeficiency, or past organ, bone marrow, or stem cell transplantation).
- Any topical rectal therapy for treatment of CD within 2 weeks prior to the screening endoscopy.
- Nonsteroidal anti-inflammatory drugs (NSAIDs) as chronic treatment, except for cyclooxygenase-2logic selective NSAIDS (celecoxib).
- Faecal microbiota transplant (includes human microbiota-based therapeutics) within 4 weeks prior to randomisation.
- Any major surgery (in the investigator's opinion) performed within 8 weeks prior to randomisation or planned during the study.
- +2 more criteria
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Horizon Europecollaborator
- Stichting Amsterdam UMCcollaborator
- Alimentiv Inc.lead
- The Leona M. and Harry B. Helmsley Charitable Trustcollaborator
Study Sites (30)
Imeldahospital
Bonheiden, Belgium
AZ Klina
Brasschaat, Belgium
H.U.B. - Hôpital Erasme
Brussels, Belgium
Universitair Ziekenhuis Antwerpen (UZA)
Edegem, Belgium
AZ Maria Middelares
Ghent, Belgium
AZ Sint Lucas
Ghent, Belgium
UZ Gent
Ghent, Belgium
UZ Leuven
Leuven, Belgium
Centre Hospitalier Universitaire (CHU) de Liege
Liège, Belgium
Groupe sante CHC/Clique du MontLegia
Liège, Belgium
AZ Oostende
Ostend, Belgium
AZ Delta VZW
Roeselare, Belgium
CHU UCL Namur asbl Site Godinne
Yvoir, Belgium
IRCCS Ospedale San Raffaele
Milan, Italy
Amsterdam UMC
Amsterdam, Netherlands
OLVG Oost
Amsterdam, Netherlands
Maastricht UMC
Maastricht, Netherlands
Radboudumc
Nijmegen, Netherlands
Elisabeth-TweeSteden Ziekenhuis (ETZ)
Tilburg, Netherlands
Universitair Medisch Centrum Utrecht
Utrecht, Netherlands
Northern Care Alliance - Fairfield General Hospital
Bury, United Kingdom
Cambridge University Hospitals NHS Trust
Cambridge, United Kingdom
Hull University Teaching Hospital NHS Trust
Cottingham, United Kingdom
The Dudley Group NHS Foundation Trust
Dudley, United Kingdom
Cardiff & Vale UHB
Llandough, United Kingdom
Guy's and St. Thomas' NHS Foundation Trust
London, United Kingdom
King's College Hospital NHS Foundation Trust
London, United Kingdom
Oxford University Hospitals NHS Foundation Trust
Oxford, United Kingdom
University Hospital Southampton NHS Foundation Trust
Southampton, United Kingdom
Hampshire Hospital NHS Foundation Trust
Winchester, United Kingdom
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
January 15, 2026
First Posted
January 23, 2026
Study Start
February 1, 2025
Primary Completion (Estimated)
June 1, 2027
Study Completion (Estimated)
January 1, 2029
Last Updated
January 23, 2026
Record last verified: 2026-01