DURHAM, N.C. — Precision BioSciences, Inc. (Nasdaq: DTIL), a clinical stage gene editing company utilizing its novel proprietary ARCUS® platform to develop in vivo gene editing therapies for diseases with high unmet need, today announced that the U.S. Food and Drug Administration (FDA) has granted Orphan Drug Designation for PBGENE-DMD for the treatment of Duchenne muscular dystrophy (DMD).
“Receipt of Orphan Drug Designation from the FDA for PBGENE-DMD underscores the tremendous unmet need and urgency to deliver safe treatments that significantly improve muscle function over time for boys living with Duchenne muscular dystrophy,” said Cindy Atwell, Chief Development and Business Officer at Precision BioSciences. “This regulatory milestone builds on our recent receipt of Rare Pediatric Disease designation and, together with our preclinical body of evidence, gives us tremendous confidence as we move this program towards the clinic. Looking ahead, we remain in active dialogue with the FDA as we advance PBGENE-DMD toward regulatory milestones, with clinical data anticipated in 2026.”
The FDA grants Orphan Drug Designation to drugs and biologics intended for the treatment, diagnosis, or prevention of rare diseases or conditions affecting fewer than 200,000 people in the United States. Orphan Drug Designation provides sponsors certain benefits, including financial incentives to support clinical development and the potential for up to seven years of market exclusivity for the drug for the designated orphan indication in the U.S. if the drug is ultimately approved for that use.
About PBGENE-DMD
PBGENE-DMD is Precision’s development program for the treatment of DMD. The approach uses two complementary ARCUS nucleases delivered via a one-time administration in a single AAV to excise exons 45-55 of the dystrophin gene with the aim of restoring near full-length dystrophin protein within the body to improve functional outcomes. PBGENE-DMD is intended to address up to 60% of the DMD patient population.
In preclinical studies, PBGENE-DMD demonstrated the ability to target key muscle types involved in the progression of DMD and produced significant, durable functional improvements in a humanized DMD mouse model. PBGENE-DMD restored the body’s ability to produce a near full-length functional dystrophin protein across multiple muscles, including cardiac tissue and various key skeletal muscle groups. In addition, PBGENE-DMD edited satellite muscle stem cells, believed to be critical for long-term durability and sustained functional improvement.
PBGENE-DMD was recently granted FDA Rare Pediatric Disease (RPD) designation for the treatment of DMD. The Company is advancing the final IND-enabling toxicology studies and is working closely with leading DMD clinicians to design a first in human trial optimized for safety and efficacy. Clinical grade material is in preparation, with initial clinical data expected in 2026.
About Precision BioSciences, Inc.
Precision’s two lead programs, PBGENE-HBV, for chronic Hepatitis B, and PBGENE-DMD, for Duchenne muscular dystrophy, are focused on areas with large patient populations with high unmet need. Precision BioSciences, Inc. is a clinical stage gene editing company dedicated to improving life (DTIL) with its novel and proprietary ARCUS® genome editing platform that differs from other technologies in the way it cuts, its smaller size, and its simpler structure. Key capabilities and differentiating characteristics enable ARCUS nucleases to drive more intended, defined therapeutic outcomes. Using ARCUS, the Company’s pipeline prioritizes in vivo gene editing candidates designed to deliver lasting cures for the broadest range of genetic and infectious diseases where no adequate treatments exist. For more information about Precision BioSciences, please visit www.precisionbiosciences.com.
Contacts
Investor and Media Contact:
Naresh Tanna
Vice President of Investor Relations
[email protected]