Could a glass of water replace nasty prep drinks for Crohn's MRI?
NCT ID NCT06690632
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether drinking 1.5 liters of water before an MRI scan can give doctors clear images of the small bowel in people with Crohn's disease, compared to the standard polyethylene glycol (PEG) prep. About 194 participants will be randomly assigned to water or PEG, and researchers will rate bowel distension quality and patient comfort. If water works well, it could make MRI prep much easier for patients.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- water preparation
- What this could lead to
- If water works as well as PEG, it could simplify bowel preparation for MRI scans in Crohn's patients, making the process more comfortable and accessible.
- What could go wrong
- This is a small, early-stage trial focused on imaging quality, not treatment. Water may not provide adequate bowel distension, and results may not change clinical practice.
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 194 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2025
- Expected to finish
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Dec 2028
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.
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Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion criteria: * Diagnosis of Crohn's Disease, * need for MRE (determined by patient's gastroenterologist) Exclusion criteria: * \< 18 years old, * inability to obtain an informed consent, * patient under guardianship or curatorship, allergy to PEG, * contraindication to MRE (pregnancy, pace maker, claustrophobia in particular), - contraindication to phloroglucinol administration (phenylcetonuria), * contraindication to gadolinium administration (kidney failure with glomerular filtration rate \< 30/mL/1.73m², pregnancy, allergy).
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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
1 site. 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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CHU Toulouse
RECRUITINGToulouse, France
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