Regeneron Pharmaceuticals, Inc. has entered a definitive agreement to acquire Decibel Therapeutics, Inc., a clinical-stage biotechnology company dedicated to treatments to restore and improve hearing and balance, for a total equity value of approximately $109 million payable at closing, and a total of up to approximately $213 million if development and regulatory milestones are achieved.
 
Decibel and Regeneron established their initial collaboration in 2017, with an extension announced in 2021, and are developing three gene therapy programs targeting different forms of congenital, monogenic hearing loss. DB-OTO, which is currently in the global Phase 1/2 CHORDTM clinical trial, is an investigational cell-selective, adeno-associated virus (AAV) gene therapy designed to provide durable, physiological hearing to individuals with profound, congenital hearing loss caused by mutations of the otoferlin gene. Preclinical programs include AAV.103 for people with GJB2-related hearing loss and AAV.104 for people with stereocilin (STRC)-related hearing loss.
 
“We at Decibel are deeply committed to discovering and advancing innovative new therapies with the potential to be transformative for people with severe forms of hearing loss. We have built a pipeline of gene therapy product candidates for the ear that we believe have such potential. After full consideration, the Decibel Board has determined that this transaction is the best way to maximize shareholder value and ultimately benefit patients,” said Laurence E. Reid, Ph.D., President and Chief Executive Officer of Decibel. 
 
George D. Yancopoulos, M.D., Ph.D., Board co-Chair, Chief Scientific Officer and President of Regeneron, said, “DB-OTO, our shared lead investigational gene therapy, will soon reach patients in its first clinical trial, offering new promise to children with this rare form of congenital hearing loss, as well as potential proof-of-concept for future gene therapies addressing more common forms of genetic hearing loss. We believe that Decibel’s assets and specialized team will further strengthen our genetic medicines portfolio, enabling Regeneron to accelerate the development of innovative genetic therapies and a rich pipeline of hearing loss treatments.”