Todd-Haenfler

CRISPR Reactivation of the Fragile X Gene

“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.”

Healx team David, Dan, Narissa - FRAXA (1)

Drug Repurposing Study Results Accelerate Progress Towards Fragile X Treatments

While there are over 8,000 rare diseases affecting an estimated 350 million people worldwide, only around 200 of these conditions have effective treatments. Due to the high cost of developing new drugs, rare diseases have historically been less attractive to pharmaceutical companies. Drug repurposing systematically leverages the detailed information available on approved drugs and reduces the time and money needed to deliver safe “new” treatments, but with greater success rates and a potentially more immediate impact on health care.

Craig Erickson lab

Brain Imbalance Target of Dr. Erickson’s New Clinical Trial

According to Dr. Erickson, AZD7325 is a drug that selectively boosts GABA neurotransmission in the brain. GABA is the primary neurochemical in the brain that blocks brain activation. GABA activity is in balance in the brain with Glutamate activity, which is the primary neurochemical that causes brain activation. In fragile X, GABA activity is insufficient and glutamate activity is excessive, likely causing brain activity to be out of balance. AZD7325 attempts to correct parts of this imbalance by boosting the insufficient GABA activity in the brains of people with fragile X