Beneficial Bacteria Treatment for Autism
BBT
Treating Gastrointestinal Problems in Children With Autism Using Beneficial Bacteria Treatment (BBT)
1 other identifier
interventional
18
0 countries
N/A
Brief Summary
This is an open-label clinical trial to investigate a combination therapy for treating gastrointestinal problems in children with autism spectrum disorders. The combination therapy includes beneficial bacteria.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P25-P50 for phase_1
Started Jul 2014
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
July 1, 2014
CompletedFirst Submitted
Initial submission to the registry
March 30, 2015
CompletedFirst Posted
Study publicly available on registry
July 22, 2015
CompletedPrimary Completion
Last participant's last visit for primary outcome
April 1, 2016
CompletedStudy Completion
Last participant's last visit for all outcomes
April 1, 2016
CompletedResults Posted
Study results publicly available
December 18, 2019
CompletedSeptember 12, 2025
August 1, 2025
1.8 years
March 30, 2015
February 9, 2018
August 21, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Gastrointestinal Symptom Responsiveness Scale (GSRS)
The GSRS is a measure of gastrointestinal symptoms. It includes 15 questions, rated on a Likert scale of 1-7, from no symptoms to severe symptoms, respectively (i.e., higher is worse). We report an average score for all 15 questions, so the possible range for the average score is also 1-7.
Baseline and 10 weeks (end of treatment)
Secondary Outcomes (7)
Parent Global Impressions-Revised (PGI-R)
Baseline and 10 weeks (end of treatment)
Blood Safety Markers (Assessment of Blood Chemistry Panel and Complete Blood Count)
Baseline and 10 weeks (end of treatment)
Childhood Autism Rating Scale (CARS)
Baseline and 10 weeks (end of treatment)
Social Responsiveness Scale (SRS)
Baseline and 10 weeks (end of treatment)
Short Sensory Profile
baseline and 10 weeks
- +2 more secondary outcomes
Study Arms (2)
Oral Group
EXPERIMENTALThis group will receive all treatments orally. The treatments include a combination of Vancomycin, MoviPrep, Prilosec, and human fecal material; processed, frozen.
Rectal Group
EXPERIMENTALThis group will receive some treatments rectally and some orally. The treatments include a combination of Vancomycin, MoviPrep, Prilosec, and human fecal material; processed, frozen.
Interventions
human fecal material; processed, frozen, administered orally
human fecal material; processed, frozen; administered orally and rectally
Eligibility Criteria
You may qualify if:
- Children ages 7-17 years
- Diagnosis of autism per Autism Diagnostic Interview-Revised (ADI-R)
- Moderate or Severe GI problems ( on the GSRS, a single score of 4 (severe) on any item, or a score of 3 (moderate) on two items, or a score of 2 (mild) or more on any 4 items
- No changes in medications, supplements, diet, therapies, or education in last 3 months, and no intention to change them during clinical trial
- General good physical health aside from gastrointestinal problems
- Cognitive Ability to Provide Informed Assent
You may not qualify if:
- Antibiotics in last 6 months
- Probiotics in last 3 months
- Single-gene disorder (Fragile X, etc.)
- Major brain malformation
- Tube feeding
- Severe gastrointestinal problems that require immediate treatment (life-threatening)
- Ulcerative Colitis, Crohn's Disease, diagnosed Celiac Disease, Eosinophilic Gastroenteritis, or similar conditions
- Severely underweight/malnourished
- Recent or scheduled surgeries
- Current participation in other clinical trials
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Arizona State Universitylead
- Northern Arizona Universitycollaborator
- University of Arizonacollaborator
- University of Minnesotacollaborator
Related Publications (3)
Kang DW, Adams JB, Vargason T, Santiago M, Hahn J, Krajmalnik-Brown R. Distinct Fecal and Plasma Metabolites in Children with Autism Spectrum Disorders and Their Modulation after Microbiota Transfer Therapy. mSphere. 2020 Oct 21;5(5):e00314-20. doi: 10.1128/mSphere.00314-20.
PMID: 33087514RESULTKang DW, Adams JB, Coleman DM, Pollard EL, Maldonado J, McDonough-Means S, Caporaso JG, Krajmalnik-Brown R. Long-term benefit of Microbiota Transfer Therapy on autism symptoms and gut microbiota. Sci Rep. 2019 Apr 9;9(1):5821. doi: 10.1038/s41598-019-42183-0.
PMID: 30967657RESULTKang DW, Adams JB, Gregory AC, Borody T, Chittick L, Fasano A, Khoruts A, Geis E, Maldonado J, McDonough-Means S, Pollard EL, Roux S, Sadowsky MJ, Lipson KS, Sullivan MB, Caporaso JG, Krajmalnik-Brown R. Microbiota Transfer Therapy alters gut ecosystem and improves gastrointestinal and autism symptoms: an open-label study. Microbiome. 2017 Jan 23;5(1):10. doi: 10.1186/s40168-016-0225-7.
PMID: 28122648RESULT
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Limitations and Caveats
Small study, open-label design, but able to demonstrate safety and possible efficacy. Dosage and duration not optimized, so adjustments in dosage and/or duration may improve results. Therapy involved 4 medications; not clear if all needed.
Results Point of Contact
- Title
- James Adams
- Organization
- Arizona State University
Study Officials
- PRINCIPAL INVESTIGATOR
James B Adams, PhD
Arizona State University
Publication Agreements
- PI is Sponsor Employee
- Yes
- Restrictive Agreement
- No
Study Design
- Study Type
- interventional
- Phase
- phase 1
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
March 30, 2015
First Posted
July 22, 2015
Study Start
July 1, 2014
Primary Completion
April 1, 2016
Study Completion
April 1, 2016
Last Updated
September 12, 2025
Results First Posted
December 18, 2019
Record last verified: 2025-08