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Can we predict Crohn's return after surgery? new study aims to find out

NCT ID NCT03458195

Knowledge-focused Sponsor: Saint-Louis Hospital, Paris, France Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study follows 575 Crohn's disease patients who have had ileocecal resection surgery. Researchers collect blood, tissue, and microbiome samples to classify the disease and identify factors that predict recurrence. The goal is to improve prevention and treatment strategies for post-surgery relapse.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
If successful, this could lead to better ways to predict and prevent Crohn's disease recurrence after surgery, and help tailor treatments to individual patients.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly test a new therapy. The findings may not lead to immediate changes in patient care.

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

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

About 575 people

The number the study aims to enrol. It can still change while the study runs.

Started

Dec 2009

Expected to finish

Dec 2035

An estimate. End dates often move.

Lead sponsor

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

18 to 100 years

Sex

Anyone

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Informed consent obtained before any study-related activities * A diagnosis of CD, based on clinical, radiologic, endoscopic, or histological evidence. * Men and women ≥18 years of age * Required surgical intervention consisting in an ileocecal resection Exclusion Criteria: * Previous history of dysplasia or cancer in the ileum or colon * Unwillingness or inability to follow the procedures outlined in the protocol * Pregnant women

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Conditions

The condition(s) this trial relates to.

Crohn disease

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Crohn disease

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    15 sites in 2 countries. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. 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

  • Amiens Hospital

    RECRUITING

    Amiens, 80054, France

  • Archet 2 Hospital

    RECRUITING

    Nice, 06202, France

  • Beaujon Hospital

    RECRUITING

    Clichy, 92110, France

  • Brabois Hospital

    RECRUITING

    Nancy, France

  • Clermont-Ferrand Hospital

    RECRUITING

    Clermont-Ferrand, 63003, France

  • Haut-levêque Hospital

    ACTIVE_NOT_RECRUITING

    Bordeaux, 33, France

  • Henri Mondor Hospital

    RECRUITING

    Créteil, France

  • Hôpital Nord, CHU Marseille

    RECRUITING

    Marseille, France

  • Kremlin-Bicêtre Hospital

    RECRUITING

    Le Kremlin-Bicêtre, France

  • Lille Hospital

    RECRUITING

    Lille, 59037, France

  • Montpellier Hospital

    RECRUITING

    Montpellier, France

  • Nantes Hospital

    RECRUITING

    Nantes, 44093, France

  • SART Tilman Hospital

    RECRUITING

    Liège, Belgium

  • Saint Antoine Hospital

    RECRUITING

    Paris, 75012, France

  • Saint Louis Hospital

    RECRUITING

    Paris, 75010, France

  • South Lyon Hospital

    RECRUITING

    Pierre-Bénite, 69495, France

  • Strasbourg Hospital

    ACTIVE_NOT_RECRUITING

    Strasbourg, France

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