Duchenne muscular dystrophy (DMD): Background on the first personalized CRISPR therapy approved for trial

Terry and Rich Horgan, with Terry's service dog, Mischief.
Credit: Rich Horgan
Terry and Rich Horgan, with Terry's service dog, Mischief. Credit: Rich Horgan

The FDA has given the greenlight to test the first personalized CRISPR therapy, which was developed specifically to treat one man’s unique genetic disorder. 

The gene therapy, created by a team of scientists assembled by his brother, may not only extend his life but potentially herald a new age of personalized genetic treatments.

The disease: Duchenne muscular dystrophy (DMD) is a rare disorder caused by mutations in the DMD gene.

Mis- and disinformation are distorting science and public policy. Subscribe to our Daily and Weekly Digests for incisive coverage of ‘disruptive’ innovations in AI, agricultural biotechnology, food, chemicals, nuclear energy, vaccines, and other disruptive innovations.

Terry Horgan is now 27 — and of the hundreds of different mutations that can cause DMD, his is one of the rarest.

Because of that, he wouldn’t have benefitted from many recently trialed gene therapies for DMD. Those trials also typically involve children, so even the therapies that might have helped Terry when he was younger were now out of reach.

…

In an attempt to help his brother overcome DMD, Richard founded the nonprofit Cure Rare Disease in 2017, when he was still a student at Harvard Business School. 

Within a few years, the nonprofit had researchers from UMass Chan, Yale University, and other institutions developing and testing a unique DMD treatment for Terry’s mutation. And in July 2022, the FDA approved the treatment (CRD-TMH-001) for a clinical trial.

“We’re finally here,” Richard told the Boston Globe. “We’re cautiously optimistic.”

This is an excerpt. Read the original post here

Related Articles

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Infographic: Global regulatory and health research agencies on whether glyphosate causes cancer

Does glyphosate—the world's most heavily-used herbicide—pose serious harm to humans? Is it carcinogenic? Those issues are of both legal and ...

Most Popular

Screenshot-2026-10-01-at-10.52.08-AM
Non-browning CRISPR gene-edited bananas move one step closer to British markets
AI-Force-Leadership-Portrait
Jay Clayton controversy: The divisive history of Trump’s newly-appointed AI czar
Screenshot-2026-09-22-at-10.54.12-AM
‘They misunderstand science’: Research attempting to tie autism to changes in the gut microbiome comes under fire
ChatGPT-Image-Mar-10-2026-01_39_01-PM
Viewpoint—“Miracle molecule” debunked: Why acemannan supplements don’t work
Elderly-Speaker-at-MAHA-Institute
At anti-vaccine MAHA conference, RFK Jr. pledges to unify federal health information and combat vaccine safety ‘misinformation’
ChatGPT-Image-Sep-21-2026-11_21_39-AM
Viewpoint: Food cults: Online ‘nutrition communities’ can pose unique dangers
Screenshot 2026-10-01 at 12.30
Combating ‘narrative distortion’: Will pharma companies step up to challenge health misinformation?
ChatGPT-Image-Sep-10-2026-10_36_07-AM
Viewpoint: Even lousy scientific articles can shield authors when they hype dubious health claims and products
Screenshot-2026-10-01-at-11.21.27-AM
Vaccine hesitancy, like malaria, surges globally, topping 35% in some countries
glp menu logo outlined

Get news on human & agricultural genetics and biotechnology delivered to your inbox.