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Will a prepackaged diet make colonoscopy prep easier?

NCT ID NCT07361575

Knowledge-focused Sponsor: Clinique Paris-Bercy Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 tests whether a prepackaged low-residue diet (Colobox) helps clean the colon better than just following oral and written instructions before a colonoscopy. Around 230 adults will be randomly assigned to one of two diet plans for 24 hours before the procedure. The goal is to see if the prepackaged diet leads to a cleaner colon, which could help doctors spot polyps more easily.

What this could mean

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

Active substance
Prepackaged low-residue diet (Colobox)
What this could lead to
If it works, this could show that a prepackaged diet makes colonoscopy prep easier and more effective, potentially improving colorectal cancer screening.
What could go wrong
This is a small, early-stage study that only measures colon cleanliness, not cancer detection rates. The prepackaged diet may not be significantly better than simple instructions.

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 230 people

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

Expected to start

Jan 2026

An estimate. Start dates often move.

Expected to finish

Nov 2026

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 years and older

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: * Patient of one of the investigators for total colonoscopy (no prior colonic surgery); * Patient aged 18 years or older; * Patient classified as ASA 1, ASA 2, or ASA 3; * Not participating in any other current clinical trial; * Free, informed, and signed consent; * Patient affiliated with or a beneficiary of a social security scheme, according to Article L.1124-1 of the French Public Health Code; Exclusion Criteria: * Patient taking major psychotropic medications; * Patient with uncontrolled diabetes; * Patient with coagulation abnormalities preventing polypectomy: PT \<50%, Platelets \<50,000/mm³, current effective anticoagulation therapy (clopidogrel, prasugrel, or ticagrelor); * Patient referred for removal of a known polyp; * Chronic inflammatory bowel disease; * Known colonic stenosis; * Diverticulitis of less than 6 weeks duration; * Pregnant, parturient, or breastfeeding woman; * Patient deprived of liberty by administrative or judicial order, or under guardianship or limited legal protection; * Patient unable to understand the objectives and constraints of the study.

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Conditions

The condition(s) this trial relates to.

colorectal adenocarcinoma colorectal adenoma colorectal cancer colorectal neoplasm disease

As listed by the trial registrant

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

Colorectal adenocarcinoma Colorectal cancer (diagnosis) Colorectal cancer prevention

How to take part

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

  1. The places running it

    1 site. 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

  • Clinique Paris Bercy

    Charenton-le-Pont, 94220, France

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