Clinical trial Recruiting at 1 site Interventional Ages 6 Months to 18

New PEG-based formula to treat children's functional constipation and improve taste

Official title: Faculty of Medicine, Chulalongkorn University

Run by Chulalongkorn University · NCT06357897 · Data updated 2026-11-12

This trial will test whether a newly developed PEG-based laxative works as well as the standard PEG and whether children find it tastier for treating functional constipation.

Quick facts

Study typeInterventional
Ages6 Months to 18 Years
SexAll
Enrollment52 (estimated)
SponsorChulalongkorn University
Academic / other
Locations1 site (Bangkok)
StatusRecruiting
StartedMay 3, 2024
Main results expectedDecember 2026
Study endsDecember 2026
Registry record updatedApril 2, 2026
Trial IDNCT06357897 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Children aged 6 months to 18 years who meet Rome IV criteria for functional constipation and do not have organic causes, bowel obstruction, interfering medications, or allergies to PEG/stevia are ideal candidates.

Probably not a fit

Children with organic causes of constipation (e.g., Hirschsprung disease), suspected GI obstruction, allergy to PEG or stevia, or who cannot adhere to the dosing/visit schedule are unlikely to benefit from this trial.

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

What this trial studies

Fifty-two children aged 6 months to 18 years with functional constipation will be randomized to receive either a developed PEG formulation (PEG-Chula) or the standard PEG (Forlax) at 0.5–1 g/kg/day for 56 days with identical sachet packaging to maintain blinding. Families will receive the same counseling on toilet training, fluids, and fiber, and parents will record symptoms, intake, and medication in a logbook. Clinical visits occur on days 7, 14, 28, and 56 to collect symptom data, measure stool and rectal diameter by ultrasound, record side effects, and check compliance. Children with poor medication compliance or excluded organic causes of constipation are removed from analysis.

Why it matters

Potential benefit: If successful, the new PEG formula could make treatment easier for children by improving taste while providing similar relief from constipation.

How similar studies have gone: Standard PEG formulas are well established as effective for pediatric functional constipation, while reformulations to improve palatability are common though this specific PEG-Chula formula appears novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Children will be enrolled in this study when they meet 2 criteria:

* Age from 6 months to 18 years old
* Children are diagnosed with FC according to ROME IV criteria

Exclusion Criteria:

Children will be excluded from the study if they meet any of the following criteria:

* Having an organic cause of constipation such as anorectal malformations, Hirschsprung disease, myelomeningocele, hypothyroidism, etc.
* Suspected GI obstruction
* Receiving medication affecting bowel movement
* Having a history of allergy to PEG and stevia.

Where it's running

  • Faculty of Medicine, Chulalongkorn University
    Bangkok, Thailand
    Recruiting

Study contacts

Similar studies

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

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.