Application of Fecal Microbiota Transplantation in Children With ASD

Status Enrolling by invitation

Clinical Trial Summary

Autism Spectrum Disorder (ASD) is a group of serious neurodevelopmental disorders. Intestinal microbial disturbance is common in children with ASD, and about 40% of ASD children suffer from gastrointestinal dysfunction. A great deal of evidence shows that intestinal microbes can influence the brain to play its role through "brain-intestinal-microbiota axis". Fecal microbial biota transplantation (FMT) is the most direct way to change the intestinal flora rapidly. We intend to study the difference of intestinal flora structure and metabolism between ASD children and control children at the level of phylum, genus and species; To explore the role of fecal bacteria transplantation in improving core symptoms and gastrointestinal dysfunction of children in autism spectrum disorder; To study the potential etiological mechanism of autism spectrum disorder.

Clinical Trial Description

20 ASD children and 20 healthy children who are 3 to 18 years of age will be enrolled in the trial. The fecal donors who are 20 healthy children, will be extensively screened for infectious diseases prior to providing stool for the transplant. After being informed about the study and potential risks, all patients giving written informed consent will undergo screening period to determine eligibility for study entry. 20 ASD children who meet the eligibility requirements will receive a fecal microbiota transplantation following a 2-week treatment with Vancomycin. Fecal bacteria transplantation will be achieved through nasogastric tube, nasojejunal tube, esophagogastroduodenoscopy, colonoscopy or enema. The amount of fecal bacterial liquid transplantation for children is 5ml/kg each time. Microbiota analysis will also be performed on both the donor and recipient stool sample prior to transplantation, and on the recipient sample at 1 month, 3 month and 6 months post transplantation. We evaluate the difference of intestinal flora structure and metabolism between ASD children and control children at the level of phylum, genus and species, and explore the role of fecal bacteria transplantation in improving core symptoms and gastrointestinal dysfunction of children in autism spectrum disorder. ;

Study Design

Related Conditions & MeSH terms

Autism Spectrum Disorder
Autistic Disorder
Child Development Disorders, Pervasive

Clinical Trial Details

NCT number	NCT04948814
Study type	Interventional
Source	Tongji Hospital
Contact
Status	Enrolling by invitation
Phase	Phase 1
Start date	June 1, 2022
Completion date	December 1, 2024

View Details

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Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.