Prime Medicine

Prime Medicine, Inc.
TypePublic
ISINUS74168J1016
IndustryBiotechnology
Founded2019 (2019)
Founders
HeadquartersCambridge, Massachusetts, U.S.
Key people
  • Allan Reine (CEO)
  • David R. Liu (Co-founder and Scientific Advisory Board member)
Websiteprimemedicine.com

Prime Medicine, Inc. is an American biotechnology company developing gene therapies based on prime editing. The company is headquartered in Cambridge, Massachusetts.[1]

Pipeline

In May 2024, Prime Medicine announced that the U.S. FDA had accepted its IND application for PM359, a gene therapy involving transplantation of autologous CD34+ stem cells modified by prime editing ex vivo.[2][3] PM359 also received Rare Pediatric Disease and Orphan Drug designations from the FDA. A Phase 1/2 open-label clinical trial of PM359 in patients with chronic granulomatous disease (CGD) caused by mutations in the neutrophil cytosolic factor 1 (NCF1, also known as p47phox) gene began in October 2024, making PM359 the first prime editor to enter the clinic.[4] Following an announcement of preliminary results in May 2025,[5] Prime Medicine and its clinical collaborators reported in December 2025 that two CGD patients treated with PM359 had been "effectively cured" of the disease.[6][7]

In May 2025, Prime Medicine announced that it would prioritize clinical development programs for the treatment of Wilson's disease and alpha-1 antitrypsin deficiency (AATD), two of the most common genetic liver diseases.[8]

Partnerships

In January 2024, Prime Medicine announced a partnership with the Cystic Fibrosis Foundation, with Prime Medicine receiving $15 million in funding towards the development of prime editing-based therapies for cystic fibrosis.[9] An additional $24 million commitment from the foundation was announced in July 2025.[10]

In September 2024, Prime Medicine announced a partnership with Bristol Myers Squibb to develop optimized prime editing reagents for ex vivo T cell therapies. Prime Medicine received $110 million upfront and is eligible for up to $3.5 billion in milestone payments.[11]

See also

References

  1. ↑ Ledford, Heidi (19 May 2025). "World first: ultra-powerful CRISPR treatment trialled in a person". Nature. doi:10.1038/d41586-025-01593-z.
  2. ↑ Karen O'Hanlon Cohrt. "First-Ever Prime-Editing Therapy Shows Safety and Efficacy in Patient With Chronic Granulomatous Disease". CRISPR Medicine News.
  3. ↑ "News: The FDA Has Cleared the First Clinical Trial Application for a Prime Editor". CRISPR Medicine. Retrieved 2026-05-05.
  4. ↑ "A Study of the Safety and Efficacy of Prime Editing (PM359) in Participants With p47phox Autosomal Recessive Chronic Granulomatous Disease (CGD )". ClinicalTrials.gov.
  5. ↑ "Prime Editing Shows Promise in Chronic Disease Treatment". Clinical Trial Vanguard.
  6. ↑ "Prime Editing for p47phox-Deficient Chronic Granulomatous Disease". New England Journal of Medicine.
  7. ↑ "Prime Editing Clinical Results Published for the First Time Ever". Inside Precision Medicine.
  8. ↑ "Prime Medicine Announces Strategic Restructuring to Focus on Opportunities in Large Genetic Liver Diseases, Cystic Fibrosis, and Partnered Programs Alongside CEO Leadership Transition". Prime Medicine.
  9. ↑ "Cystic Fibrosis Foundation Invests up to $15 Million in Prime Medicine". Global Genes.
  10. ↑ "Cystic Fibrosis Foundation grants new funding to advance development of Prime Medicine's prime editors". BioWorld.
  11. ↑ Taylor, Nick Paul (30 Sep 2024). "BMS pays $110M to form T-cell therapy pact, helping Prime buy time to advance prioritized pipeline". Fierce Biotech.