Precision BioSciences Announces Return of Programs and Conclusion of Collaboration with Prevail Therapeutics

Precision BioSciences, Inc. (Nasdaq: DTIL), an advanced gene editing company, today announced the anticipated return of three programs from Prevail Therapeutics Inc., a wholly owned subsidiary of Eli Lilly and Company. Precision exercised its option to regain rights for the programs following Prevail Therapeutics’ decision to conclude the collaboration. Precision uses its novel proprietary ARCUS platform to develop in vivo gene editing therapies for sophisticated gene edits, including gene elimination, insertion, and excision. The collaboration began in January 2021 and was amended in June 2023 to transfer certain preclinical research, manufacturing, and investigational new drug (IND)-enabling activities from Precision BioSciences to Prevail Therapeutics.

“We enjoyed a productive gene editing collaboration with Prevail Therapeutics and appreciate their contributions to the success of these programs. Together, we advanced three programs from concept toward clinical candidates, and Precision completed its workplan for these programs to the next stage gate, taking us to an important development decision point,” said Michael Amoroso, President and Chief Executive Officer of Precision BioSciences. “Our decision to regain control of the programs brings exciting development opportunities to Precision’s pipeline with a focus on benefiting people born with incurable genetic diseases.”

“These in vivo gene editing programs are designed to take advantage of unique attributes of ARCUS, namely its cut, size, and simplicity. Our next steps will be to prepare for GLP toxicology studies followed by potential IND and clinical trial application (CTA) submissions,” said Jeff Smith, PhD, Co-Founder and Chief Research Officer. “We are excited about the compelling in vivo proof-of-concept data generated for ARCUS gene excision of a “hot spot” region of the dystrophin gene in the DMD program. Additionally, in vivo data for the gene insertion program demonstrated up to 45% high efficiency gene insertion in non-dividing cells of non-human primates measured by total liver tissue. This is important and differentiating proof-of-concept data for ARCUS compared to CRISPR, base editors and prime editors, which have not demonstrated such high levels of gene insertion efficiency in dividing or non-dividing cells in vivo, potentially enabling broader therapeutic applicability for ARCUS.”