FDA Approves First Gene Therapy for Fatal Childhood 'Dementia' as Breakthroughs Multiply

The FDA has approved the first-ever gene therapy for Sanfilippo syndrome, a rare and fatal childhood neurodegenerative disorder often called "childhood dementia."

Plain English

This one-time intravenous treatment delivers a functional copy of the defective SGSH gene using an AAV9 viral vector, allowing the body to produce the missing enzyme and prevent toxic buildup in the brain. It's designed for children with preserved neurodevelopmental function.

Limitations

The therapy...