Lifestyle advice after positive screening may cut colon cancer risk
NCT ID NCT06827366
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests whether giving personalized diet and lifestyle advice to people who had a positive colorectal cancer screening (but no cancer) can help them adopt healthier habits and potentially prevent future cancer. 800 participants will be randomly assigned to receive the advice or usual care, and their adherence to evidence-based recommendations will be tracked for one year.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- diet and lifestyle advice
- What this could lead to
- If successful, this could show that simple lifestyle changes after a positive screening test reduce the risk of developing colorectal cancer.
- What could go wrong
- This is a behavioral study, not a drug trial. Results depend on participants sticking to the advice, and it may not prove that lifestyle changes directly prevent cancer.
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 800 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Jan 2026
- Expected to finish
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Feb 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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35 to 74 years
- 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: * Having read the information note and agreeing to participate * Will and availability to be committed for a full year * At high risk for CRC but CRC negative * Affiliated to a health security system * Having a score on the adherence to the recommendation lower than or equal to 7 out of 9 at baseline. * Able to read, write and understand French Exclusion Criteria: * Under a strict diet such as meal replacements, diets for co-morbidities such as diabetes * Immobile due to physical constraints (e.g. handicap that is not compatible with physical activities) * Extensive intestinal surgery such as colectomy or surgical resection of the colon * Chronic gastrointestinal illness (IBD, IBS, celiac disease) * Colorectal cancer confirmed or history of a primary cancer * Severe malnutrition * Pregnant * Participation in another lifestyle study NB : For this study, there is no exclusion period from other research, and participants can simultaneously take part in another study unless it concerns lifestyle.
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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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Centre Léon Bérard
RECRUITINGLyon, France, 69008, France
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