Could a prebiotic soothe ulcerative colitis?
NCT ID NCT06050811
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tested whether a prebiotic called 2'-fucosyllactose can help people with mild-to-moderate ulcerative colitis. 38 adults took the prebiotic or a placebo for four weeks, then switched. Researchers measured symptoms, gut bacteria, and inflammation markers. The goal was to see if this dietary supplement could improve gut health and reduce symptoms.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- 2'-fucosyllactose (a prebiotic)
- What this could lead to
- If it works, this could point toward a simple dietary supplement to help manage ulcerative colitis symptoms and improve gut health.
- What could go wrong
- This is a small, early-stage trial with only 38 participants. The prebiotic may not significantly improve symptoms, and results may not apply to all patients.
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
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38 people
The number who actually took part.
- Started
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Jan 2024
- Finished
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Jun 2025
- Lead sponsor
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A government agency
The lead sponsor is a government body.
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 64 years
- Sex
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Anyone
- Healthy volunteers
-
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: * Signed consent form * Adults (aged from 18 to 64) * Diagnosis of ulcerative colitis by endoscopy and histology * Mildly or moderately active UC (based on symptom score and gastroenterologist opinion, with elevated serum C-reactive protein above reference range for local laboratory and/or faecal calprotectin of 150 μg/g or greater and/or endoscopic disease activity, the latter three criteria having been within the past 2 months.) Exclusion Criteria: * Patients with acute severe colitis, as defined by the Truelove and Witts criteria * Intake of an experimental drug within four weeks prior to study * Former participation in prebiotic or laxative trials within the previous three months * Use of antibiotics within the previous four weeks * Introduction of an immunomodulator or advanced therapy (e.g. biologic) within 12 weeks or dose change of an immunomodulator or advanced therapy within 6 weeks * Introduction of oral 5-ASA within 8 weeks, or dose change of an oral 5-ASA agent within 2 weeks * Use of corticosteroids within preceding 6 weeks or during trial period * Intake of other specific prebiotics (such as oligosaccharides e.g. inulin), or probiotics (e.g. live yoghurts, other fermented products), drugs active on gastrointestinal motility, or a laxative of any class, for four weeks prior to study. * Women who are lactating, pregnant or planning pregnancy during the study period.
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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.
Contacts and locations
Locations
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Royal Berkshire NHS Foundation Trust
Reading, Berkshire, RG1 5AN, United Kingdom
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