Discovering Effective Treatments & A Cure for Fragile X Syndrome

Your support enables FRAXA Research Foundation to fund groundbreaking research and life-changing clinical trials.

How Does FRAXA Help?

FRAXA’s mission is to find effective treatments and ultimately a cure for Fragile X syndrome. We directly fund research grants and fellowships at top universities around the world. We partner with biomedical and pharmaceutical companies, large and small, to bridge the gap between research discoveries and actual treatments.

Every member of our staff and Board of Directors is a parent of one or more children with Fragile X, making our commitment to this cause deeply personal.

Treatments for Fragile X are likely to help people affected by autism, Alzheimer’s, and other brain disorders.

What is Fragile X Syndrome?

Fragile X syndrome (FXS) is the most common inherited cause of autism and intellectual disabilities. It affects 1 in 4,000 boys and 1 in 8,000 girls worldwide.

Fragile X syndrome occurs when a single gene on the X chromosome shuts down. This gene makes a protein needed for normal brain development. In FXS it does not work properly, the protein is not made, and the brain does not develop as it should.

Symptoms of Fragile X syndrome can include developmental delays, social anxiety, and learning disabilities, which vary between individuals.

The Latest from FRAXA

Sex Differences and the Role of Estrogen Receptors in Fragile X

July 29, 2025

Fragile X syndrome researchers are studying how estrogen receptors shape brain activity and may explain why males and females experience symptoms differently.

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2025 FRAXA Research Grants Webinar with Dr. Michael Tranfaglia and Katie Clapp

Fragile X Syndrome Research in 2025: FRAXA Announces New Grants & Promising Leads

July 16, 2025

Fragile X syndrome research is advancing in 2025 with new FRAXA-funded grants supporting breakthrough science, therapy platforms, and clinical tools.

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Marine Anais Krzisch, PhD

Role of Microglia in Fragile X Syndrome

June 26, 2025

Learn how Dr. Marine Anais Krzisch’s $35K FRAXA and ASF-funded project uses human iPSC microglia models to uncover pathways for Fragile X syndrome treatment.

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FRAXA's Impact to Date

Explore 30 years of outstanding Fragile X research.

$35.8M

Direct Investment in Fragile X Research

43

Teams Actively Researching Fragile X Syndrome

33

Pharmaceutical and Biomedical Partners

649

Fragile X Research Grants Awarded