Sangamo Therapeutics Inc. discussed gene regulation approaches for neurodegenerative diseases when presenting findings on their clinical candidate ST-506 for the treatment of prion disease.

Small fiber neuropathy (SFN) is a chronic and debilitating condition caused by damage to peripheral sensory nerves, which are responsible for pain, temperature sensation and autonomic functions. Current treatments are limited, highlighting the need for better therapies.

The BioWorld Drug Developers Index underperformed both the Nasdaq Biotechnology Index (NBI) and the Dow Jones Industrial Average (DJIA) throughout February and March. However, it showed some recovery by the end of April, finishing the month down 4.67%, slightly worse than the DJIA’s 4.41% decline. The NBI ended April slightly up from both, with a year-to-date drop of 1.16%.

Sangamo Therapeutics Inc. is adding a much-needed $18 million up-front payment in a neurology-focused deal with Eli Lilly and Co. that could bring up to an additional $1.4 billion. In return, Lilly gets access to Sangamo’s neurotropic adeno-associated virus (AAV) capsid, STAC-BBB, which has shown early promise in penetrating the blood-brain barrier penetration, for one initial target with the right to add up to four more.

Sangamo Therapeutics Inc.’s stock sank sharply on the last day of 2025 as Pfizer Inc. handed back the rights to their collaborative gene therapy hemophilia A program. While it was another big loss to Sangamo, which had seen two other major deals fall through in the past two years, the company still has two large collaborations in development.

Sangamo Therapeutics Inc.’s second large, worldwide licensing deal for its capsid technology in the past five months is with Astellas Pharma Inc. The California-based company is getting $20 million up front and the chance to bring in up to $1.3 billion in fees and milestone payments in an agreement spanning five potential disease targets for gene therapies to treat neurological diseases.

Sangamo Therapeutics Inc.’s second large, worldwide licensing deal for its capsid technology in the past five months is with Astellas Pharma Inc. The California-based company is getting $20 million up front and the chance to bring in up to $1.3 billion in fees and milestone payments in an agreement spanning five potential disease targets for gene therapies to treat neurological diseases.

The BioWorld Drug Developers Index (BDDI) continued its downward spiral through the fall, going from a modest 1.11% decline at the end of August to a 6.2% dip in September and an 11.3% loss by October’s close.