Neurocrine Biosciences, Inc. and Voyager Therapeutics, Inc. announced the formation of a new strategic collaboration to advance multiple gene therapies for the treatment of neurological diseases. The collaboration includes Voyager's preclinical, intravenously administered GBA1 gene therapy program for Parkinson's disease and other GBA1-mediated diseases, which combines a GBA1 gene replacement payload with novel capsids from Voyager's TRACER(TM) (Tropism Redirection of AAV by Cell-type-specific Expression of RNA) platform. In addition, Neurocrine Biosciences and Voyager have agreed to collaborate on three new gene therapy programs directed to rare CNS targets, each also leveraging Voyager's novel TRACER capsids.

The collaboration builds upon the long-standing straegic partnership between Neurocrine Biosciences and Voyager and continues to combine Voyager's expertise in novel capsid discovery, payload design, and neuropharmacology with Neurocrine Biosciences' expertise in neuroscience and the clinical and commercial development of therapies for patients suffering from serious neurological diseases. Voyager will host a company conference call and webcast to discuss the collaboration. Full webcast details are provided below.

Collaboration Details and Financial Terms Under the terms of the agreement, Neurocrine Biosciences has agreed to pay Voyager $175 million up front, of which Neurocrine Biosciences has agreed to pay approximately $136 million in cash and to purchase approximately $39 million of newly issued equity in Voyager at a price of $8.88 per share, which represents a 50% premium to the average daily volume-weighted average price of Voyager's stock over the 30 trading days prior to the execution of the transaction. In addition, Neurocrine Biosciences has agreed to fund all costs incurred under the collaboration, subject to the cost- and profit-sharing option terms below. Regarding the GBA1 gene therapy program, Neurocrine Biosciences has agreed to fund development through the completion of a first Phase 1 trial.

Following the data readout from such trial, Voyager has the right, but not the obligation, to elect to co-develop and co-commercialize the GBA1 program with Neurocrine Biosciences in the U.S. under a 50/50 cost- and profit-sharing arrangement in lieu of receiving further U.S. milestone-based payments and royalties or alternatively be eligible for U.S.-based development, regulatory, and commercial milestone payments and tiered royalties, with Neurocrine Biosciences maintaining responsibility for all development and commercialization expenses. If Voyager declines its option for cost and profit sharing on the GBA1 program, under the terms of the collaboration agreement, Voyager will be eligible for up to $985 million in total development milestone payments plus substantial potential commercial milestone payments, and tiered royalties ranging from low double-digit to twenty percent on U.S. net sales. Irrespective of Voyager's election on its cost- and profit-sharing option, Voyager shall beeligible for potential ex- U.S.-based regulatory and commercial milestone payments, as well as royalties ranging from high-single-digits to mid-eens on ex-U.S. net sales.

Regarding the three new gene therapy programs under the collaboration, Voyager is eligible to earn up to $175 million in development milestone payments plus substantial potential commercial milestone payments for each program, and tieredhigh single-digit to mid-teens royalties on U.S. net sales and mid-single-digit to low double-digit royalties on ex-U.S. net sales.