NCT06505304

Brief Summary

This is a multicentre prospective international observational study. This study aims to introduce a novel multidimensional approach to precision imaging, enabling the identification and stratification of high-risk patients who can potentially benefit from early treatments to halt the progression of Crohn's disease (CD). The investigators will develop a novel endoscopic assessment system using endoscopic enhanced imaging (EEI) to evaluate early post-surgical changes and predict post-operative CD recurrence (POCr). By integrating with immune marker profiling, clinical data, and AI assessment of EEI and histology, the investigators further plan to improve risk stratification and reduce interobserver variability.

Trial Health

83
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
225

participants targeted

Target at P75+ for all trials

Timeline
0mo left

Started May 2024

Typical duration for all trials

Geographic Reach
6 countries

15 active sites

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress97%
May 2024May 2026

Study Start

First participant enrolled

May 1, 2024

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

July 10, 2024

Completed
7 days until next milestone

First Posted

Study publicly available on registry

July 17, 2024

Completed
1.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

October 31, 2025

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

May 31, 2026

Expected
Last Updated

July 18, 2024

Status Verified

July 1, 2024

Enrollment Period

1.5 years

First QC Date

July 10, 2024

Last Update Submit

July 16, 2024

Conditions

Keywords

Crohn's diseaseArtificial IntelligenceVirtual ChromoendoscopyConfocal laser endomicroscopyOMICMachine LearningPost-operative recurrence

Outcome Measures

Primary Outcomes (2)

  • Early post-operative endoscopic recurrence

    Post surgical endoscopic recurrence will be defined as Simple Endoscopic Score for Crohn's Disease (SES-CD) \> 2 and Rutgeerts score \> i2a

    3 months or 6 months

  • Early post-operative clinical recurrence

    Post surgical clinical recurrence will be defined as: * CD Activity Index score (CDAI) \>200 and a \>70-point increase from baseline, or * development of a new or re-draining fistula or abscess, or * requiring steroids, endoscopic dilatation, or hospitalization

    3 months and 6 months

Secondary Outcomes (3)

  • Post-operative clinical recurrence

    1 year and 2 years

  • Early post-operative histological recurrence

    3 months or 6 months

  • Early post-operative IUS recurrence

    3 months or 6 months

Study Arms (1)

Post-operative CD

Patients undergoing surgery or with a previous (within 3 months from the enrolment) surgery for CD

Procedure: ColonoscopyProcedure: Intestinal biopsiesProcedure: Confocal laser endomicroscopyProcedure: Intestinal ultrasoundDiagnostic Test: StoolDiagnostic Test: BloodDiagnostic Test: SalivaOther: Clinical follow-up

Interventions

ColonoscopyPROCEDURE

The colonoscopy will be performed at 3 or 6 months after surgery according to FC: * In patients with FCP \>=150µg/g at around 3 months after surgery, a colonoscopy will be immediately performed * In patients with FCP \<150µg/g at around 3 months after surgery, the colonoscopy will be organized at 6 months after surgery Colonoscopy will be performed using high definition white-light endoscopy (HD-WLE) followed by virtual chromoendoscopy (VCE). The neoterminal ileum, ileocolic anastomosis and right colon will be assessed. A follow-up colonoscopy will be performed within 18 months after index colonoscopy, as standard of care.

Post-operative CD

During index colonoscopy, at least 2 biopsies from each of the segments will be taken as standard of practice to assess inflammation in post-operative CD. Only in Irish sites, twelve biopsies - four in the area of ileocolonic anastomosis, four in the neo-terminal ileum and four in the colon just distal to the anastomosis- will be taken for research purposes, in addition to standard-of-care biopsies.

Post-operative CD

pCLE with fluorescein injection will be performed during index colonoscopy, in centres where is available, to assess early alteration of the barrier function.

Post-operative CD

All patients will undergo a cross-sectional imaging test as part of their standard of care at 3 and 6 months after surgery. A follow-up IUS will be performed within 18 months after index colonoscopy, as standard of care.

Post-operative CD
StoolDIAGNOSTIC_TEST

Stool samples will be collected at 3 and 6 months after surgery and used for faecal calprotectin analysis. Research stool will be collected during the visit of index colonoscopy and at 12 months after index colonoscopy for metagenomics (only in Irish sites).

Post-operative CD
BloodDIAGNOSTIC_TEST

Blood will be collected at 3 and 6 months after surgery and used as standard of care. Research blood will be collected during the visit of index colonoscopy and at 12 months after index colonoscopy for research - i.e. proteomic, genomic, cell experiments (only in Irish sites).

Post-operative CD
SalivaDIAGNOSTIC_TEST

Saliva will be collected during the visit of index colonoscopy and at 12 months after surgery for research - i.e. optical spectroscopy (only in Irish site)

Post-operative CD

Patients will be followed-up at 6, 12 and 24 months after index endoscopy. Patients will be evaluated in clinic or by telephone call and the disease will be reassessed. The following scores will be repeated: Harvey Bradshaw Index (HBI) and CD Activity Index score (CDAI). Participants will give an update on their medication use.

Post-operative CD

Eligibility Criteria

Age18 Years - 75 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Males and females aged between 18 and 75 years old and with an established diagnosis of CD, who have undergone surgery no more than three months before study entry, or have surgery planned, will be consecutively recruited after obtaining written consent. The sample size for the study is 225

You may qualify if:

  • Patients aged between 18 years and 75 years.
  • Established diagnosis of CD at least six months prior to study.
  • Patients who have undergone intestinal resection within 3 months before study entry or have surgery planned.

You may not qualify if:

  • Inability to provide consent.
  • Presence of serious co-morbidities (clinical contraindication).
  • Presence of ostomy.
  • Pregnancy or breastfeeding.
  • Contraindication for colonoscopy or biopsies.
  • Boston Bowel Preparation Scale Score \<2 in the rectum plus left-sided colon.
  • Allergy to nuts or shellfish.
  • Severe or uncontrolled asthma.
  • Use of beta blockers.
  • Previous history of reaction to fluorescein.
  • Patients excluded from pCLE can still enter the study and undergo only standard-of-care endoscopy.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (15)

University of Leuven

Leuven, Belgium

ACTIVE NOT RECRUITING

University of Calgary

Calgary, Canada

RECRUITING

University Hospital Erlangen

Erlangen, Germany

ACTIVE NOT RECRUITING

Cork University Hospital

Cork, Ireland

ACTIVE NOT RECRUITING

Mercy University Hospital

Cork, Ireland

ACTIVE NOT RECRUITING

University College Dublin

Dublin, Ireland

RECRUITING

University College Hospitals Galway

Galway, Ireland

ACTIVE NOT RECRUITING

Rabin Medical Centre

Tel Aviv, Israel

RECRUITING

Istituto Clinico Humanitas

Rozzano, Milan, Italy

ACTIVE NOT RECRUITING

ASST Spedali Civili

Brescia, Italy

ACTIVE NOT RECRUITING

ASST Fatebenefratelli Sacco

Milan, Italy

RECRUITING

IRCCS Cà Granda Ospedale Maggiore

Milan, Italy

RECRUITING

University Vita-Salute San Raffaele

Milan, Italy

ACTIVE NOT RECRUITING

University Federico II

Naples, Italy

RECRUITING

IRCCS San Matteo

Pavia, Italy

RECRUITING

Related Publications (7)

  • Rutgeerts P, Geboes K, Vantrappen G, Beyls J, Kerremans R, Hiele M. Predictability of the postoperative course of Crohn's disease. Gastroenterology. 1990 Oct;99(4):956-63. doi: 10.1016/0016-5085(90)90613-6.

    PMID: 2394349BACKGROUND
  • Gionchetti P, Dignass A, Danese S, Magro Dias FJ, Rogler G, Lakatos PL, Adamina M, Ardizzone S, Buskens CJ, Sebastian S, Laureti S, Sampietro GM, Vucelic B, van der Woude CJ, Barreiro-de Acosta M, Maaser C, Portela F, Vavricka SR, Gomollon F; ECCO. 3rd European Evidence-based Consensus on the Diagnosis and Management of Crohn's Disease 2016: Part 2: Surgical Management and Special Situations. J Crohns Colitis. 2017 Feb;11(2):135-149. doi: 10.1093/ecco-jcc/jjw169. Epub 2016 Sep 22.

    PMID: 27660342BACKGROUND
  • Iacucci M, Ghosh S, Daperno M. Post-operative Recurrence of Crohn's Disease: There Is More to It than Meets the Eye. J Crohns Colitis. 2016 Sep;10(9):999-1000. doi: 10.1093/ecco-jcc/jjw094. Epub 2016 May 4. No abstract available.

    PMID: 27147451BACKGROUND
  • Riviere P, Vermeire S, Irles-Depe M, Van Assche G, Rutgeerts P, de Buck van Overstraeten A, Denost Q, Wolthuis A, D'Hoore A, Laharie D, Ferrante M. No Change in Determining Crohn's Disease Recurrence or Need for Endoscopic or Surgical Intervention With Modification of the Rutgeerts' Scoring System. Clin Gastroenterol Hepatol. 2019 Jul;17(8):1643-1645. doi: 10.1016/j.cgh.2018.09.047. Epub 2018 Oct 4.

    PMID: 30291910BACKGROUND
  • Auzoux J, Boschetti G, Anon B, Aubourg A, Caulet M, Poisson L, Besson P, Lecomte T, Roger S, Picon L, Nancey S, Moussata D, Flourie B. Usefulness of confocal laser endomicroscopy for predicting postoperative recurrence in patients with Crohn's disease: a pilot study. Gastrointest Endosc. 2019 Jul;90(1):151-157. doi: 10.1016/j.gie.2019.02.030. Epub 2019 Mar 5.

    PMID: 30849396BACKGROUND
  • Rispo A, Imperatore N, Testa A, Nardone OM, Luglio G, Caporaso N, Castiglione F. Diagnostic Accuracy of Ultrasonography in the Detection of Postsurgical Recurrence in Crohn's Disease: A Systematic Review with Meta-analysis. Inflamm Bowel Dis. 2018 Apr 23;24(5):977-988. doi: 10.1093/ibd/izy012.

    PMID: 29688470BACKGROUND
  • Iacucci M, Cannatelli R, Parigi TL, Nardone OM, Tontini GE, Labarile N, Buda A, Rimondi A, Bazarova A, Bisschops R, Del Amor R, Meseguer P, Naranjo V, Ghosh S, Grisan E; PICaSSO group. A virtual chromoendoscopy artificial intelligence system to detect endoscopic and histologic activity/remission and predict clinical outcomes in ulcerative colitis. Endoscopy. 2023 Apr;55(4):332-341. doi: 10.1055/a-1960-3645. Epub 2022 Oct 13.

    PMID: 36228649BACKGROUND

Biospecimen

Retention: SAMPLES WITH DNA

Intestinal biopsies, Blood, Stool, Saliva

MeSH Terms

Conditions

Crohn Disease

Interventions

ColonoscopyDefecationBlood Specimen Collection

Condition Hierarchy (Ancestors)

Inflammatory Bowel DiseasesGastroenteritisGastrointestinal DiseasesDigestive System DiseasesIntestinal Diseases

Intervention Hierarchy (Ancestors)

Endoscopy, GastrointestinalEndoscopy, Digestive SystemDiagnostic Techniques, Digestive SystemDiagnostic Techniques and ProceduresDiagnosisEndoscopyDiagnostic Techniques, SurgicalDigestive System Surgical ProceduresSurgical Procedures, OperativeMinimally Invasive Surgical ProceduresDigestive System Physiological PhenomenaDigestive System and Oral Physiological PhenomenaSpecimen HandlingClinical Laboratory TechniquesPuncturesInvestigative Techniques

Study Officials

  • Marietta Iacucci, Professor

    APC Microbiome Ireland, University College Cork

    STUDY CHAIR

Central Study Contacts

Michelle O'Riordan

CONTACT

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
PROSPECTIVE
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

July 10, 2024

First Posted

July 17, 2024

Study Start

May 1, 2024

Primary Completion

October 31, 2025

Study Completion (Estimated)

May 31, 2026

Last Updated

July 18, 2024

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations