Fragile X Research Q&A: Dr. Berry-Kravis on the RECONNECT Trial
Fragile X Research Q&A with Dr. Berry-Kravis on RECONNECT results, placebo effects, outcome measures, methylation, and research directions for families.
Fragile X Research Update: A Turning Point for Treatments and Curative Approaches
Fragile X research is at a turning point. FRAXA is funding ASO therapy and CRISPR-based gene reactivation to target the root cause of Fragile X.
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.
Innovative Breakthrough in Fragile X Treatment: The Promise of Antisense Oligonucleotide (ASO) Therapy
This changes everything! FRAXA funded research introduces Antisense Oligonucleotide (ASO) Therapy, redefining Fragile X syndrome treatment and understanding.
10 Year Vision for Fragile X Research – Dr. Elizabeth Berry-Kravis & Dr. Patricia Cogram
In this video we hear from FRAXA Investigators Dr. Patricia Cogram, Professor at the University of Chile, and Dr. Elizabeth Berry-Kravis, Professor at Rush University Medical Center as they reflect on the progress that has been made and visualize what they see happening in the next 10 years for people living with Fragile X syndrome.
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.
FX-Learn Clinical Trial for Children with Fragile X
Thirteen centers across the US enrolled children with Fragile X in a large-scale clinical trial of Novartis AFQ056. Dr. Elizabeth Berry-Kravis and colleagues aim to show that this targeted treatment — an mGluR5 blocker for Fragile X which failed in previous adult human trials — can be better evaluated by studying effects on learning in young children.
Purposeful and FRAXA Partnership Leads to Clinical Trial
AI and FRAXA-DVI identified a drug + supplement combo that reversed all Fragile X symptoms in mice. A clinical trial tested this in adults with Fragile X.
Tetra’s Fragile X Clinical Trial – The Most Successful So Far
Dr. Mark Gurney, CEO of Tetra Therapeutics, discusses how one of the earliest clues to the biology of Fragile X led to the most successful Fragile X clinical trial to date. FRAXA and Tetra began working together after a key FRAXA-funded study caught the attention of Dr. Gurney. Through the FRAXA Drug Validation Initiative, Dr. Patricia Cogram was able to conduct preclinical validation experiments with Tetra’s lead compound in record time, paving the way for clinical trials.
Alternative Splicing in White Blood Cells: A Biomarker for Fragile X Syndrome
This team found 1,600 blood-based Fragile X biomarkers that vary by individual—opening the door to personalized treatment and better ways to measure progress.
2021 FRAXA Awards – Recognizing Perseverance and Dedication
In conjunction with World Fragile X Day 2021, FRAXA Research Foundation is proud to recognize its annual award recipients. This year’s recipients exemplify the perseverance and dedication that has made FRAXA a global leader in Fragile X research for nearly 30 years. We are fortunate to partner with these individuals on research, community support and awareness efforts.
Clinical Trials and Cyclic AMP in Fragile X Syndrome: A Life Journey
In November 2020, a phase II clinical trial reported extremely successful results. This clinical trial of a PDE4D inhibitor from Tetra Pharmaceuticals was conducted by Dr. Elizabeth Berry-Kravis at Rush University Medical Center and funded by FRAXA Research Foundation. In this Simons Foundation lecture, Elizabeth Berry-Kravis traces 30 years of Fragile X research, from identifying its cause, through finding dozens of treatment targets, through a series of disappointing clinical trials.
Positive Results Reported in Phase II Fragile X Clinical Trial of PDE4D Inhibitor Zatolmilast from Tetra Therapeutics
Today, Tetra Therapeutics announces the first unequivocally positive phase 2 clinical trial in Fragile X syndrome, press release below. The results do not depend on carving out a subset of patients or post hoc analysis.
Tetra Discovery Partners Initiates Phase 2 Trial of BPN14770 in Fragile X Syndrome
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.
New Fragile X Clinical Trial for Children Launching in June 2017
Rush University Medical Center Professor Elizabeth M. Berry-Kravis, MD, PhD, has launched and is recruiting participants for a large-scale clinical trial to study effects of AFQ056, an mGluR5 blocker, on learning in young children.
Clinical Trials Outcome Measures
With $281,824 in funding from FRAXA Research Foundation from 2002-2011, Dr. Berry-Kravis at the Rush University Medical Center attempted to validate a new automated video tracking system for quantifying physical activity as an outcome measure for Fragile X clinical trials.
Pilot Clinical Trial of Lithium in Fragile X Shows Promising Results
With a $65,000 grant from FRAXA Research Foundation in 2005, Dr. Berry-Kravis at the Rush University Medical Center conducted a pilot clinical trial of lithium in 15 patients with Fragile X syndrome. Results published.













