FRAXA Drug Validation Initiative (FRAXA-DVI)

The FRAXA Drug Validation Initiative (FRAXA-DVI) provides speedy, cost-effective, objective preclinical testing to validate investigational and repurposed compounds for Fragile X.

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Help Rowan Thrive: Support Fragile X Research

Join the Gale and Kellogg families in supporting Fragile X research through FRAXA. Help Rowan and others thrive by funding life-changing treatments and advancing curative therapies.

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Shionogi’s EXPERIENCE Phase 3 Clinical Trial of Zatolmilast in Fragile X Syndrome

Learn more about Shionogi’s EXPERIENCE clinical trials for adults and adolescents with Fragile X syndrome, FRAXA’s role, and the open-label extension of these trials.

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Dr. Thomas Maurin and Dr. Barbara Bardoni, Fragile X researchers and co-authors of a 2025 review on PDE inhibitors published in Cell Reports Medicine.

Fragile X and PDE Inhibitors: A Promising Path Forward for Brain Disorders

Fragile X syndrome research shows PDE inhibitors may improve brain function and behavior, with promise for related neurodevelopmental disorders.

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FRAXA-Funded Research Explores ISRIB as a Potential Treatment for Fragile X

ISRIB for Fragile X syndrome is being studied as a potential treatment to restore brain function and social behavior. Researchers investigate its effects.

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Support the Stevenson Family Campaign

The march of time renews the commitment we made to a special needs community 25 years ago. We vowed to dream big and never give up until there were effective treatments available and eventually a cure for Fragile X syndrome, the most commonly inherited cause of intellectual disabilities and autism.

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Screening Combinatorial Pharmacological Therapies for Fragile X Syndrome

Screening Combinatorial Pharmacological Therapies for Fragile X Syndrome

This Stanford University team assessed combinatorial drug treatments to correct a broad spectrum of deficits observed in Fragile X syndrome. Results published.

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Marvel Biosciences Partners with FRAXA to Test MB204 for Fragile X Syndrome

Marvel Biosciences and FRAXA Research Foundation are collaborating to test MB204, a promising new treatment for Fragile X which targets adenosine receptors.

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BK Channel Openers: A New Drug for Fragile X Is Ready for Clinical Trials

A promising new BK channel opener, SPG601 from Spinogenix, is entering clinical trials for Fragile X syndrome. Learn about its potential to restore synaptic function and address core symptoms.

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Fragile X Clinical Trial of New PDE4D Inhibitor from Tetra

A $200K FRAXA grant enabled a successful Phase 2 trial of a PDE4D inhibitor for adult men with Fragile X, showing strong cognitive gains without side effects or tolerance.

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Repurposing FDA-Approved Drugs to Treat Major Depressive Disorder in Fragile X Syndrome

Depression is common in Fragile X, but current antidepressants need FMRP to work. Researchers will screen FDA-approved drugs to find effective options for FXS.

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Contribution of Microglia to the Therapeutic Effects of Metformin and Adiponectin in Fragile X Syndrome

Why are some with Fragile X always hungry or overweight, yet rarely diabetic? This team is studying metabolism and testing treatments like metformin and diet.

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Brain Organoids, Moving Fragile X Research Forward

FRAXA-funded scientists at Emory created human brain organoids that reveal Fragile X changes more clearly than mouse models, opening new paths to targeted treatments.

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Fragile X Clinical Trials

Synaptogenix Announced Intention to Launch a Fragile X Clinical Trial with Bryostatin

Bryostatin research has advanced from mouse models to human trials. Synaptogenix and Nemours make plans to test this potential treatment in Fragile X clinical trials.

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Characterization of Microglia Transcriptional Profile in Fmr1 Knockout Mice Model

Microglia are excessively activated in Fragile X models. The team will investigate the mechanisms and attempt to correct this using drugs.

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Bryostatin-1 in Long-term Use Seen to Arrest Fragile X Symptoms in Mouse Model

Long-term, but not short-term, treatment with bryostatin-1 arrested some behavioral and cognitive symptoms in a mouse model of Fragile X.

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Positive Results Reported in Phase II Fragile X Clinical Trial of PDE4D Inhibitor Zatolmilast from Tetra Therapeutics

Tetra Therapeutics announces the first unequivocally positive phase 2 clinical trial in Fragile X syndrome. The results do not depend on carving out a subset of patients or post hoc analysis.

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Bear lab (Bear 3rd from left, McCamphill on right)

Scientists Find a New Way to Reverse Symptoms of Fragile X

MIT Professor Mark Bear and colleagues have identified a new target for Fragile X therapeutics: GSK3 alpha. Several FRAXA research teams previously identified GSK3 beta as a treatment target.

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Companies Move to Advance Potential Cognitive Treatment for Fragile X

Tetra Therapeutics and Shionogi announced plans to expand their partnership supporting BPN14770, a treatment candidate for disorders marked by cognitive and memory deficits.

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Fragile X Researcher, Cara Westmark, PhD

Ketogenic Diet Eases Symptoms in Fragile X Male Mice

Westmark Lab is studying sleep patterns in Fragile X mice, working with UW-Madison to develop tools that speed EEG data analysis

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FRAXA Biotech Games, It Can Only Happen in an Open Community

The FRAXA Biotech Games lit up Cambridge Crossing with biotech teams uniting to raise funds and awareness for Fragile X research.

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Tetra Announces $40M to Advance BPN14770 for FXS and Alzheimer’s Disease

Tetra conducted a Phase 2 study of BPN14770 in adults with Fragile X Syndrome. This clinical trial was made possible by early work with the FRAXA-DVI and over $200,000 from FRAXA.

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Metformin and Aberrant Insulin Signaling in a Fragile X Mouse Model

FRAXA-funded research is revealing how insulin signaling is altered in Fragile X and whether lowering it, including with metformin, could ease symptoms.

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Mega Green Tea Extract to Treat Fragile X?

FRAXA funded a clinical trial of EGCG (green tea extract) on cognitive function in adults with FXS. The team in Barcelona reported memory, attention, and mental flexibility improvements.

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FRAXA Funded Research

Current Research Grants (38)