Using psyllium to treat irritable bowel syndrome in children

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

Phase 2 Interventional Duke University · NCT06639984

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

Quick facts

PhasePhase 2
Study typeInterventional
Enrollment110 (estimated)
Ages12 Years to 17 Years
SexAll
SponsorDuke University Academic / other
Locations1 site (Durham, North Carolina)
Trial IDNCT06639984 on ClinicalTrials.gov

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.

Who should consider this trial

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

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

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

Eligibility criteria

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 this trial is running

Durham, North Carolina

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Irritable Bowel SyndromeAbdominal Pain
Last reviewed 2026-06-13 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.