Considering Available Drugs for Fragile X: My Favorite Combination (So Far)

Which of the available drugs are best for fragile X? We tend to think of drugs according to their primary activity in the body, but very few drugs are totally selective and specific. There are differences between drugs in any given class, and these differences may be critical. Most drugs have “off-target” effects which are usually considered side effects, and it is these side effects which can have key advantages, in some cases.

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fNIRS to Measure Treatment Response in Young Children with Fragile X

FRAXA Research Foundation has awarded a $90,000 research grant to Dr. Craig Erickson and Dr. Elizabeth Smith at Cincinnati Children’s Hospital to test functional near-infrared spectroscopy (fNIRS), in children who have Fragile X syndrome. fNIRS is safe, non-invasive, and easily-tolerated. It uses light sources and sensors on the scalp to build a heat map of the brain in action.

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Results Reported: Using EEG Responses to Sound for Fragile X Drug Discovery

Jonathan Lovelace, a FRAXA funded Postdoc at UC Riverside, has made some exciting EEG findings over the past few years studying auditory hypersensitivity in mice and therapeutic drug treatments. A big obstacle in FXS research has been establishing reliable, unbiased, and translation relevant biomarkers that can be used to determine the effectiveness of therapies. One of the most important discoveries they have made is the striking similarity in EEG biomarkers between mice and humans.

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Auditory Dysfunction in Fragile X Syndrome in a Mouse Model of Fragile X

Elizabeth MCullough and Achim Klug

With a $90,000 grant from FRAXA, Dr. McCullagh and Dr. Achem Klug at the University of Colorado investigated whether auditory neural circuits are altered in Fragile X mice. They saw minor differences in these mice compared to B6 (control) mice in several measures of auditory acuity. Fmr1 mice had increased latency to the startle response for almost all conditions compared to B6 mice, suggesting altered timing to acoustic cues. These experiments show that, consistent with patient reports and anatomical/physiological data, the auditory system is altered in a mouse model of FXS, though with some potential compensation leading to a subtle behavioral impact.

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National Institutes of Health Releases Fragile X Strategic Plan

Elle Skala, Tracy King, Christie Rogers, Mary Beth Busby

FRAXA Program Coordinator, Elle Skala, and long time FRAXA supporter and previous Board Member, Mary Beth Busby, traveled to the National Institutes of Health earlier this week. The timing of this meeting was perfect because the National Institutes of Health (NIH) just released their long-anticipated Strategic Plan for Fragile X Syndrome, FXTAS, and FXPOI. It will guide federal Fragile X research funding for at least the next five years and open the door for continued funding of the Fragile X Research Centers of Excellence.

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A Day in the Lab with FRAXA Investigator Dr. Tue Banke

Casey with Dr. Tue Banke

Recently Laurie Bowler and her 19-year-old son Casey, who has Fragile X syndrome, visited FRAXA research grant recipient Dr. Tue Banke at his University of Washington laboratory. We hope you enjoy Laurie’s wonderful description of their adventure! FRAXA awarded $90,000 to Dr. Banke to study the Developmental Profile of Glutamatergic Synapses in Fragile X.

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Tetra Discovery Partners Initiates Phase 2 Trial of BPN14770 in Fragile X Syndrome

Tetra Discovery Partners

This 2-Period Crossover Study of BPN14770 is accepting adults males with Fragile X syndrome at Rush University Medical Center in Chicago. Principal Investigator of the study is Elizabeth Berry-Kravis, MD, PhD.
A selective inhibitor of the phosphodiesterase type-4D (PDE4D), BPN14770 has shown the ability to improve the quality of connections between neurons and to improve multiple behavioral outcomes in the Fragile X mouse model.

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Takeaways from Fragile X Advocacy Day

In the first week of March I attended my first Fragile X Advocacy Day to meet with many of the Massachusetts delegation to Congress. While this was my first time advocating for Fragile X research, I’ve been a longtime lung cancer research advocate and have met with many of the same representatives in the past. It was a pleasure to meet with many of the families as my participation in Advocacy Day was in the spirit of “we are all in this together”.

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Impact of the Fragile X Community

At FRAXA Research Foundation, we are truly grateful for our Fragile X community and thousands of donors. We couldn’t keep moving the ball forward in research without your support. Each year FRAXA invests over $1 million in Fragile X research thanks to your support. Because we supported these three researchers, we were able to secure another $35 million in research aimed at identifying clinical trial outcome measures that will lead to human trials of promising treatments for those affected by Fragile X.

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CRISPR Reactivation of the Fragile X Gene

Todd-Haenfler

“We are trying to target the first event that goes wrong in Fragile X syndrome”, says Todd, “One reason our previous attempts to develop treatments for Fragile X syndrome have failed is that they’ve tried to target the downstream effects of losing the Fragile X protein. The protein does many things… bypassing all the functions that it normally takes care of has proven difficult from a pharmacologic perspective.”

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Defining Subcellular Specificity of Metabotropic Glutamate Receptor (mGluR5) Antagonists

Karen O'Malley

With $217,500 in grants from FRAXA Research Foundation, Dr. Karen O’Malley and team studied the function of mGluR5 when it is inside cells. Many of the symptoms of Fragile X Syndrome (FXS) are thought to arise due to overactive metabotropic glutamate receptor 5 (mGluR5) signaling, which is normally opposed by the protein missing in FXS, Fragile X Protein (FMRP).

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