Clinical trial Recruiting at 1 site Phase 2 Interventional Ages 12 to 17

Using psyllium to treat irritable bowel syndrome in children

Official title: Assessing Psyllium Given With Meals for Fructan Sensitivity in Children With Irritable Bowel Syndrome

Run by Duke University · NCT06639984 · Data updated 2026-11-12

This study is testing if taking psyllium fiber can help children with irritable bowel syndrome feel better after eating foods that contain fructans.

More Irritable Bowel Syndrome trials

Quick facts

PhasePhase 2
Study typeInterventional
Ages12 Years to 17 Years
SexAll
Enrollment110 (estimated)
SponsorDuke University
Academic / other
Locations1 site (Durham, North Carolina)
StatusRecruiting
StartedFebruary 20, 2025
Main results expectedSeptember 30, 2027
Study endsSeptember 30, 2027
Registry record updatedMay 26, 2026
Trial IDNCT06639984 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 12-17 who meet the pediatric Rome IV criteria for IBS.

Probably not a fit

Patients with serious chronic medical conditions or documented gastrointestinal disorders may not benefit from this study.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial investigates the effects of psyllium, a type of fiber, on children aged 12-17 with irritable bowel syndrome (IBS) who experience symptoms after consuming fructans. The study aims to determine how psyllium influences the fermentation of fructans by gut bacteria and whether it can alleviate gastrointestinal symptoms associated with fructan intake. Participants will undergo a dietary assessment followed by a two-week intervention period where they will consume either psyllium or a placebo alongside fructans. The trial will measure various gastrointestinal and microbiome-related outcomes to evaluate the effectiveness of psyllium.

Why it matters

Potential benefit: If successful, this treatment could significantly reduce IBS symptoms in children, improving their quality of life.

How similar studies have gone: Previous studies have shown promise in using dietary fibers for managing IBS symptoms, suggesting this approach may be effective.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children between the ages of 12-17 years meeting pediatric Rome IV criteria for IBS

Exclusion Criteria:

* Children who have had previous bowel surgery, have documented GI disorders (e.g., ulcerative colitis), or a serious chronic medical condition (e.g., diabetes)
* weight and/or height are \> or \< 2 SD for age
* have chronic conditions with GI symptoms (e.g., cystic fibrosis)
* have been on antibiotics or probiotics within 3 months (because of potential alterations to the GI microbiome0
* girls who are pregnant (tested with urine beta-human chorionic gonadotropin at the initial visit)

Where it's running

  • Duke University
    Durham, North Carolina, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.