NCT02504554

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

100
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
18

participants targeted

Target at P25-P50 for phase_1

Timeline
Completed

Started Jul 2014

Status
completed

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

Completed
9 months until next milestone

First Submitted

Initial submission to the registry

March 30, 2015

Completed
4 months until next milestone

First Posted

Study publicly available on registry

July 22, 2015

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 1, 2016

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 1, 2016

Completed
3.7 years until next milestone

Results Posted

Study results publicly available

December 18, 2019

Completed
Last Updated

September 12, 2025

Status Verified

August 1, 2025

Enrollment Period

1.8 years

First QC Date

March 30, 2015

Results QC Date

February 9, 2018

Last Update Submit

August 21, 2025

Conditions

Keywords

children

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

EXPERIMENTAL

This group will receive all treatments orally. The treatments include a combination of Vancomycin, MoviPrep, Prilosec, and human fecal material; processed, frozen.

Drug: oral VancomycinDrug: MoviPrepDrug: PrilosecBiological: human fecal material; processed, frozen administered orally

Rectal Group

EXPERIMENTAL

This group will receive some treatments rectally and some orally. The treatments include a combination of Vancomycin, MoviPrep, Prilosec, and human fecal material; processed, frozen.

Drug: oral VancomycinDrug: MoviPrepDrug: PrilosecBiological: human fecal material; processed, frozen; administered orally and rectally

Interventions

an antibiotic

Oral GroupRectal Group

a bowel cleanse

Oral GroupRectal Group

a stomach acid suppressan

Oral GroupRectal Group

human fecal material; processed, frozen, administered orally

Oral Group

human fecal material; processed, frozen; administered orally and rectally

Rectal Group

Eligibility Criteria

Age7 Years - 17 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

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

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.

  • Kang 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.

  • Kang 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.

MeSH Terms

Conditions

Autism Spectrum Disorder

Interventions

VancomycinMoviPrepOmeprazoleMicroscopy, Electron, Scanning TransmissionFreezing

Condition Hierarchy (Ancestors)

Child Development Disorders, PervasiveNeurodevelopmental DisordersMental Disorders

Intervention Hierarchy (Ancestors)

GlycopeptidesGlycoconjugatesCarbohydratesPeptidesAmino Acids, Peptides, and Proteins2-PyridinylmethylsulfinylbenzimidazolesSulfoxidesSulfur CompoundsOrganic ChemicalsPyridinesHeterocyclic Compounds, 1-RingHeterocyclic CompoundsBenzimidazolesHeterocyclic Compounds, 2-RingHeterocyclic Compounds, Fused-RingMicroscopy, Electron, TransmissionMicroscopy, ElectronMicroscopyDiagnostic ImagingDiagnostic Techniques and ProceduresDiagnosisInvestigative TechniquesPhase TransitionPhysical PhenomenaCold TemperatureTemperatureThermodynamicsChemical Phenomena

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

  • James B Adams, PhD

    Arizona State University

    PRINCIPAL INVESTIGATOR

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