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Probiotic Therapy for Children and Adults With Autism Spectrum Disorder

Assessment of Customized Probiotic Therapy for Children and Adults With Autism Spectrum Disorder

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04655326
Enrollment
296
Registered
2020-12-07
Start date
2020-10-15
Completion date
2025-07-12
Last updated
2026-04-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Autism Spectrum Disorder

Brief summary

This is a study of the effect of a customized probiotic on children and adults with autism, including effects on autism symptoms and gastrointestinal symptoms.

Detailed description

SunGenomics provides its customers with a customized probiotic based on an analysis of the microbiota in their stool samples. Customers who have autism spectrum disorders are invited to participate in this study by completing several questionnaires about their medical history, diet, autism symptoms, and gastrointestinal symptoms before taking the probiotic, and to repeat those questionnaires approximately 3 months later. This is effectively an open-label study.

Interventions

DIETARY_SUPPLEMENTFlore

personalized blend of GRAS approved probiotic strains, prebiotics, and botanicals

Sponsors

Arizona State University
Lead SponsorOTHER
Sun Genomics
CollaboratorUNKNOWN

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Each participant receives a customized probiotic based on the results of the measurement of their gut microbiota

Eligibility

Sex/Gender
ALL
Age
30 Months to 75 Years
Healthy volunteers
No

Inclusion criteria

1. New client of Sun Genomics (has applied for testing and treatment, but not yet begun treatment) 2. Diagnosis of ASD (initially based on self-report of ASD diagnosis by appropriate medical professional, and then verified by an evaluation of the Social Responsiveness Scale (SRS-2) by ASU staff. 3. Children and adults ages 2.5-75 years

Exclusion criteria

1. Antibiotic use in the last two months (not counting topical antibiotics) 2. Any changes in medications, nutritional supplements, therapies, in the last two months, or any plans to change them during the first 3 months of probiotic treatment.

Design outcomes

Primary

MeasureTime frameDescription
Parent Global Impressions of Autism - Changechange in score between baseline and 3 monthsThe PGIA-Change assesses the change in 20 different autism-related symptoms on a 7-point scale, from -3 (much worse) to 0 (no change) to +3 (much better) Note that this is a different scale than the PGIA-Baseline, which assesses severity on an absolute scale. The rationale for the two scales is that, based on our clinical experience, it appears that parents can give an approximate value for their child's severity (PGIA-Baseline), but that it is more accurate to ask them about change (with the PGIA-Change) than to ask them about severity again and compare it vs a baseline score (PGIA-Baseline).

Secondary

MeasureTime frameDescription
Social Responsiveness Scalechange in score between baseline and 3 monthsA questionnaire about social skills, where higher scores suggest more severe autism. Scores range from 0 to 195, with higher scores indicating more severe problems.
Gastrointestinal Symptom Rating Scalechange in score between baseline and 3 monthsA questionnaire which evaluates 15 gastrointestinal symptoms on a severity scale from 1 (none) to 7 (severe). We report the average score of those 15 items

Countries

United States

Baseline characteristics

Characteristic
Age, Continuous10.4 years
STANDARD_DEVIATION 7.1
Gastrointestinal Symptom Rating Scale (GSRS)2.25 units on a scale
STANDARD_DEVIATION 0.97
Parent Global Impressions of Autism (PGIA) - Baseline2.81 units on a scale
STANDARD_DEVIATION 0.87
Region of Enrollment
United States
296 participants
Sex: Female, Male
Female
60 Participants
Sex: Female, Male
Male
236 Participants
Social Responsiveness Scale (SRS-2)80.1 units on a scale
STANDARD_DEVIATION 10.4

Adverse events

Event typeEG000
affected / at risk
deaths
Total, all-cause mortality
0 / 296
other
Total, other adverse events
1 / 296
serious
Total, serious adverse events
0 / 296

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Apr 10, 2026