Investigating bladder and bowel dysfunction in children

Bladder and Bowel Dysfunction in Children

Not applicable Interventional University of Aarhus · NCT05318365

This study is testing a new treatment for bladder and bowel problems in kids aged 5 to 14 to see if combining certain therapies helps them feel better.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment100 (estimated)
Ages5 Years to 15 Years
SexAll
SponsorUniversity of Aarhus Academic / other
Locations3 sites (Aalborg and 2 other locations)
Trial IDNCT05318365 on ClinicalTrials.gov

What this trial studies

This study aims to explore the effectiveness of combination therapy in treating bladder and bowel dysfunction (BBD) in children aged 5 to 14 years. BBD is characterized by lower urinary tract symptoms and bowel complaints, such as functional constipation and faecal incontinence. The research will assess the role of the gut and urine microbiome in managing these conditions, which have been underexplored in pediatric populations. The treatment approach includes the use of Polyethylene Glycol 3350 and urotherapy, following a step-wise management strategy.

Who should consider this trial

Good fit: Ideal candidates for this study are children aged 5 to 14 years diagnosed with urinary incontinence and/or constipation.

Not a fit: Patients with neuropathic or anatomical abnormalities in the urinary tract or gastrointestinal canal will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could lead to improved treatment strategies for children suffering from bladder and bowel dysfunction.

How similar studies have performed: While research on BBD treatment is sparse, previous studies suggest that addressing bowel issues can enhance urinary symptom management, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Age 5-14 years and 9 months at time of inclusion
* Diagnosed with urinary incontinence and/or enuresis nocturna defined by the ICCS criteria
* Diagnosed with constipation and/or faecal incontinence defined by the ROME IV criteria
* Normal clinical examination
* Parents/guardian can understand the written and spoken information
* Informed assent to participation from both parents/guardian

Exclusion Criteria:

* Neuropathic or anatomical abnormalities in the urinary tract or gastrointestinal canal
* Earlier surgical intervention of the urinary tract (except circumcision)
* Neurological illness or earlier cerebral surgical intervention
* On-going urinary tract infection
* On-going treatment with anticholinergics and/or β3-adenoceptoragonist
* On-going treatment with laxatives in correct dosage (PEG3350 1-2 g/kg/day)
* Inflammatory bowel disease
* Other disorder affection bladder or bowel function
* For Study 2 (microbiome): Systemic antibiotics within the past 3 months

Where this trial is running

Aalborg and 2 other locations

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 Bladder and Bowel DysfunctionDysfunctional Elimination SyndromeUrinary Incontinence in ChildrenFunctional constipation in ChildrenGut MicrobiomeUrine Microbiome
Last reviewed 2026-06-09 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.