Autism Treatment Trials

The list below is of autism clinical trials currently taking place in the US and actively recruiting participants.

Please note that the studies listed on this page are not run or organised by the BRAIN Foundation and we are unable to reply to email enquiries about clinical trials. We attempt to give as much details as possible below, but if you have any further questions please contact the study organisers directly.

The TAPESTRY study

PROJECT AIMS: To establish if AB-2004 can improve irritability in autism. AB-2004 is a therapeutic agent designed to selectively adsorb substances produced by bacteria in the gut and reduce their ability to enter the bloodstream and contribute to irritability. This study builds upon research that has shown a significant difference in the gut bacteria in autism compared to controls, as well as the link between gut bacteria and the brain which could influence behavioral characteristics, including irritability.
LOCATIONS: United States, Australia and New Zealand
AGES: 13 to 17
ADDITIONAL CRITERIA FOR INCLUSION: irritability + GI symptoms (constipation, diarrhea, or bloating)

GEMMA (Genome, Environment, Microbiome and Metabolome in Autism)

LEAD INVESTIGATOR/INSTITUTION: Dr. Alessio Fasano, MassGeneral Hospital for Children
PROJECT AIMS: to learn more about the many factors that contribute to the development of autism. This long-term, multicenter study follows infants who are genetically at-risk of developing ASD for their first three years of life with visits that can be completed at their local pediatrician’s office. Infants can even be enrolled before birth!
AGES: 0-6 months
INCLUSIONS/EXCLUSIONS: any infant 0-6 months of of age and that has a sibling with ASD is eligible for this study
CONTACT: mghgemma (at)

Are you an investigator needing help recruiting participants?

If you run a clinical trial for autism or any related neurodevelopmental disorders and would like your study listed here, please reach out to us on

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