Clinical trial Recruiting at 1 site Interventional Ages 4 to 8

Evaluating the effects of xylitol during pregnancy on child development

Official title: Prevention of Developmental Delay and Xylitol (PDDaX) Study

Run by University of Washington · NCT05361122 · Data updated 2026-11-12

This study is testing if taking xylitol during pregnancy helps with the brain development of children aged 4 to 8 years, comparing two different ways to measure their progress.

Quick facts

Study typeInterventional
Ages4 Years to 8 Years
SexAll
Enrollment1000 (estimated)
SponsorUniversity of Washington
Academic / other
Locations1 site (Lilongwe)
StatusRecruiting
StartedApril 4, 2023
Main results expectedSeptember 30, 2027
Study endsSeptember 30, 2027
Registry record updatedAugust 19, 2026
Trial IDNCT05361122 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are children aged 4-8 years who were born during the previous trial and whose parents can provide consent.

Probably not a fit

Children whose parents are unable to provide consent or who are unwilling to participate will 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 study aims to assess the effectiveness of the Malawi Developmental Assessment Tool (MDAT) for evaluating neurodevelopment in children aged 4-8 years, comparing it to the more complex Kaufman Assessment Battery for Children-II (KABC-II). It will involve 1,000 children, half of whom were born preterm and half term, to determine the impact of maternal xylitol exposure during pregnancy on various neurodevelopmental outcomes. Participants will undergo multiple neurodevelopmental tests to evaluate cognitive, executive function, and social-emotional skills. The study is conducted in Malawi, leveraging a previous trial that enrolled a large number of pregnant women.

Why it matters

Potential benefit: If successful, this study could provide insights into the benefits of xylitol during pregnancy for improving neurodevelopmental outcomes in children.

How similar studies have gone: While the approach of using xylitol during pregnancy is innovative, similar studies have not been widely conducted, making this a potentially novel investigation.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Child born during the PPaX trial
* Enrollment age between 4-8 years old
* Parental or legal guardian consent obtained
* Willing to undergo 3 neurodevelopmental tests
* Willing to travel to BCMF for neurodevelopmental assessment
* Assent by the pediatric subject for participation in the study

Exclusion Criteria:

* Parent or legal guardian cognitively unable to provide consent
* Child unwilling to provide assent to participate in the study

Where it's running

  • Baylor College of Medicine Children's Foundation-Malawi
    Lilongwe, Malawi
    Recruiting

Study contacts

  • Principal investigator: Greg Valentine, MD — University of Washington
  • Study coordinator: Greg Valentine, MD
  • Email: gcvalent@uw.edu
  • Phone: (206) 543-3200

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.