Nazim Kourdougli and Carlos Portera-Cailleau

Correcting Sensory Processing in Fragile X Mice by Modulating Kv3.1

FRAXA funded UCLA research on a Kv3.1-targeting drug to ease sensory issues in Fragile X. This work built on Yale-led work now also being pursued by Autifony Therapeutics.

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Gene Therapy Translational Studies for Fragile X Syndrome

With FRAXA funding, researchers tested AAV gene therapy to restore FMRP in Fragile X mice, measuring safety, effectiveness, and brain activity to inform future trials.

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Samie Jaffrey, PhD, at Weill Medical College of Cornell University, FRAXA research grant

Which is the right FMRP for Therapeutic Development of Fragile X Syndrome?

Many forms of FMRP exist in the brain. This project aims to pinpoint which versions of the protein are most critical to restore for effective Fragile X treatments.

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Developmental Profile of Glutamatergic Synapses in Fragile X

A FRAXA fellowship helped reveal how glutamate receptors at synapses develop differently in Fragile X, offering clues to improve learning and memory.

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Ray Turner, PhD and Xiaoqin Zhan, PhD

Reintroducing FMRP via Tat to Reduce Symptoms of Fragile X Syndrome

A FRAXA-funded team found that a shortened FMRP protein, delivered with a Tat “carrier,” restores brain signaling and improves behavior in Fragile X mice.

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Screening 2,320 FDA-Approved Drugs for Potential Treatment of Fragile X

FRAXA funded a screen of 2,320 FDA-approved compounds in the Fragile X fly model to identify hits that improve memory and social behavior for advanced testing.

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Kathan Pierce Honored as a New England Patriots Difference Maker

FRAXA Board Member Kathan Pierce was honored by the Patriots & Robert Kraft for her volunteerism. The team also awarded FRAXA a $5K grant!

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kaczmarek-Hassar-Brown

Novel Modulators of Potassium Channels to Treat Fragile X

FRAXA-funded Yale research showed disrupted Kv3.1 and Slack potassium channels impair neuronal timing in Fragile X. Published findings support Kv3.1 as a treatment target.

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Jingqi Yan, PhD and Suzanne Zukin, PhD

Autophagy is a Novel Therapeutic Target of Impaired Cognition in Fragile X Syndrome

FRAXA’s $90K grant enabled Dr. Zukin to link impaired autophagy to Fragile X. Boosting autophagy restored synaptic proteins and reversed cognitive deficits in mice.

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

Tetra Discovery Partners has signed a multi-part deal that could bring it up to $160 million, plus royalties, from Shionogi & Co, Ltd, a Japanese major research-driven pharmaceutical company. Tetra currently is conducting an investigational Phase 2 study of BPN14770 in adults with Fragile X Syndrome, an indication for which BPN14770 has received Orphan Drug Designation from the US Food and Drug Administration. This clinical trial was made possible by early work with the FRAXA-DVI and over $200,000 from FRAXA.

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Meet Charlie!

Meet #FriendofFRAXA Charlie! If you would like to nominate someone as a #FriendofFRAXA, we welcome all who have been touched by Fragile X, including friends, grandparents, siblings, professionals and companions alike to become a #FriendofFRAXA with the goal of putting a face to Fragile X for those who may not know someone directly.

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2018 Hope for the Holidays

Hope for the Holidays Gala Helps Advance Fragile X Research

The sold-out Hope for the Holidays Gala raised $100K for FRAXA! Huge thanks to the Pierces for their continued generosity and support.

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Antonella Borreca, PhD, and Alberto Martire, PhD

Coffee, Tea, and Chocolate: Adenosine Receptors in Fragile X

Could “caffeine-like” drugs help Fragile X? FRAXA funded research to test adenosine blockers, which may boost thinking and improve symptoms in Fragile X mice.

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Contacting Your Member of Congress to Advocate for Fragile X Research

A quick guide to contacting Congress for Fragile X advocacy—includes tips, recommendations, and how to look up your senators and representatives.

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Emily #FriendofFRAXA

Meet Emily!

Meet #FriendofFRAXA Emily! If you would like to nominate someone as a #FriendofFRAXA, we welcome all who have been touched by Fragile X, including friends, grandparents, siblings, professionals and companions alike to become a #FriendofFRAXA with the goal of putting a face to Fragile X for those who may not know someone directly.

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Qionger He, PhD, and Anis Contractor, PhD

NKCC1 Inhibitor Bumetanide Corrects Synaptic and Circuit Hyperexcitability in Fragile X Mouse Model

Dr. Anis Contractor and Dr. Qionger He investigated the potential of the available drug bumetanide to correct altered GABA signalling in a mouse model of Fragile X syndrome.

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Finding Fragile X Biomarkers – From Transcriptomics to Behavior in Patients

FRAXA funded a study using blood-based transcriptomics to find reliable Fragile X biomarkers. This unique approach links molecular data to behavior for future 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.

Research Points to Drugs which Inhibit PDE to Treat Fragile X

FRAXA-funded work identified PDE enzymes as key targets in Fragile X, showing that PDE inhibitors can fix signaling and boost synaptic function. PDE4D trials are underway.

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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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David and Cecil Rosenthal Fragile X Brothers killed at Pittsburgh synagogue massacre

Fragile X Brothers Two of the Pittsburgh Synagogue Massacre Victims

We mourn Cecil & David Rosenthal, beloved brothers with Fragile X, lost in the Tree of Life tragedy. Their kindness and faith will never be forgotten.

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Andy #FriendofFRAXA

Meet Andy!

Meet #FriendofFRAXA Andy! If you would like to nominate someone as a #FriendofFRAXA, we welcome all who have been touched by Fragile X, including friends, grandparents, siblings, professionals and companions alike to become a #FriendofFRAXA with the goal of putting a face to Fragile X for those who may not know someone directly.

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Kathan Pierce Named Patriots Difference Maker of the Week!

FRAXA’s Kathan Pierce, co-founder of The Pierce Family Fragile X Foundation, is the 2018 Patriots Difference Maker of the Week!

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Newly discovered aspects of fragile X spur next wave of drugs

Spectrum News – Newly Discovered Aspects of Fragile X Spur Next Wave of Drugs

Many drugs for Fragile X syndrome have failed in large clinical trials, but candidates that target new aspects of the condition may fare better.

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Andreas Frick and Kamila Castro

Non-Invasive Imaging as a Biomarker for Fragile X Clinical Trials

FRAXA funded MRI research to track brain connectivity changes in Fragile X. This could yield objective biomarkers for testing treatments in mice and humans.

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FRAXA Funded Research

Current Research Grants (38)