Can a simple food quiz replace a 4-day diary for IBS patients?
NCT ID NCT05293769
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study is testing a new online food questionnaire to see if it can accurately measure what people eat, including FODMAPs (certain carbs that can cause digestive issues). Researchers will compare the questionnaire to a standard 4-day food diary in 400 adults, both with and without Irritable Bowel Syndrome (IBS). The goal is to make it easier to track diet and its link to IBS symptoms and physical activity.
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Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 400 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Oct 2022
- Expected to finish
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Dec 2030
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.
Who is studied
Healthy subjects, IBS patients
- Ages
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18 to 65 years
- Sex
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Anyone
Show the full entry requirements Hide 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: * 18 - 65 years; * Provide written informed consent; * Living in Belgium Exclusion Criteria: * Diet \< 8 weeks prior to participation; * Known or suspected eating disorder; * Major psychiatric disorder; * Known gastro-intestinal disease (IBS is allowed); * Any malignancy in the past 3 years (basocellular carcinoma is allowed); * Chemotherapy in the past 6 months; * Infectious gastro-enteritis in the past 6 months (infectious gastro-enteritis defined as the concurrent presence of one of the following signs during 2 or more consecutive days: fever, vomiting, sudden onset of diarrhea, hospitalization because of these symptoms); * Previous abdominal surgery (appendectomy and cholecystectomy are allowed); * Alcohol abuse defined as \> 14 U per week; * Use of illicit drugs; * Intake of drugs with known major gastro-intestinal side effects. * Initiation of neuromodulators less than 3 months before participation. Neuromodulators are allowed when taken at a stable dose for at least 3 months; * Pregnancy.
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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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UZ Brussel
RECRUITINGJette, Brussels Capital, 1090, Belgium
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