Diet as medicine: could a simple food plan tame ulcerative colitis?
NCT ID NCT04121806
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests whether a carefully designed diet can change the gut bacteria in people with active ulcerative colitis and reduce disease activity. Twenty adults with mild to moderate colitis will follow the diet and have their gut bacteria and inflammation levels measured. The goal is to see if food alone can help control the condition without needing stronger medications.
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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 20 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Mar 2021
- Expected to finish
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Sep 2026
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 to 75 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: * • Females and Males between the ages of 18 - 75 years of age at the time of enrolment * Must have established diagnosis of UC by standard endoscopic, radiographic, or histological criteria * Must have active UC defined by having a Mayo score equal to or greater than 2 within two months prior to enrollment * Must have had \> 10cm involvement at some point in their disease history * FCP\>250 or active endo within 6 months * If a smoker, must not change smoking habits (frequency) during the course of the study * If receiving medical therapy, no baseline therapy change within 4 weeks of study initiation and no change during the course of the study Exclusion Criteria: * • Uncontrolled inflammation which will likely require surgery or escalation of therapy within 4 weeks of enrollment * Pregnant or lactating females * Allergy or intolerance to key or a great number food components of the study diet * Current NSAID use * Diagnosed with PSC * Using topical therapies or suppositories * Antibiotic use within 4 weeks of the study enrollment or during the study * Confirmed C. difficile infection within 3 months of recruitment; * Diagnosis of primary PSC; * Currently using topical therapies or suppositories * History of dysplasia or colorectal neoplasia.
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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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Mount Sinai Hospital
RECRUITINGToronto, Ontario, M5G 1X5, Canada
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Other studies related to the condition(s) this trial covers.
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- Can a new biologic calm the immune attack in ulcerative colitis?