Butyrate supplementation for children with autism and gut issues

Effects of a Postbiotic Supplementation on Gastrointestinal and Core Symptoms in Autism Spectrum Disorder: A Multicenter Randomized Controlled Trial

Not applicable Interventional Istituto Superiore di Sanità · NCT06514573

This study is testing if giving sodium butyrate to young children with autism and gut problems can help improve their behavior and stomach issues.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment128 (estimated)
Ages3 Years to 6 Years
SexAll
SponsorIstituto Superiore di Sanità Academic / other
Locations3 sites (Naples and 2 other locations)
Trial IDNCT06514573 on ClinicalTrials.gov

What this trial studies

This study investigates the effects of a 16-week oral supplementation of sodium butyrate in children aged 3-6 years diagnosed with Autism Spectrum Disorder (ASD) and functional gastrointestinal disorders (FGIDs). The research aims to assess improvements in clinical and behavioral profiles, gastrointestinal symptoms, gut microbiome composition, and immune responses. By targeting the gut-brain axis and utilizing postbiotics, the study seeks to provide a novel intervention for managing ASD symptoms exacerbated by gastrointestinal issues. The trial includes a placebo group for comparison to ensure the validity of the results.

Who should consider this trial

Good fit: Ideal candidates for this study are children aged 3-6 years with a confirmed diagnosis of ASD and FGIDs lasting more than three months.

Not a fit: Patients who are older than 6 years or have uncertain FGIDs diagnoses may not benefit from this study.

Why it matters

Potential benefit: If successful, this intervention could significantly improve gastrointestinal symptoms and behavioral outcomes in children with ASD.

How similar studies have performed: While there is limited clinical data on butyrate effects in ASD, emerging evidence suggests potential benefits from similar interventions targeting gut health.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* children aged 3-6 years
* both sexes
* ASD diagnosis and presence of FGIDs (6-item Gastrointestinal Severity Index (6-GSI) \>7 from \> 3 months)

Exclusion Criteria:

* age 6 years
* uncertain FGIDs diagnoses
* FGIDs symptoms duration \<3 months
* concomitant presence of other chronic condition (adverse food reactions, metabolic disorders, infections)
* malformation and Gi or urinary tracts chronic diseases
* immunodeficiencies
* diabetes
* neurologic/cardiovascular/autoimmune diseases
* obesity
* malnutrition
* antibiotics and/or pre-/pro-/synbiotics use 6 months prior to enrollment
* last 12 months participation into other clinical trials

Where this trial is running

Naples 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 Autism Spectrum DisorderChildGastrointestinal MicrobiomeMicrobiotaButyratesFatty Acids, VolatileGastrointestinal DiseasesBehavioral symptoms
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.