Pfizer Inc. has strengthened its gene therapy research pipeline and its interests in next-generation hemophilia therapies by exclusively licensing worldwide Sangamo BioSciences Inc.’s hemophilia A gene therapy program. The lead project, SB-525, is expected to enter initial clinical studies this quarter, having already been cleared to do so by the US FDA.
Pfizer Signs On For Sangamo’s Hemophilia A Gene Therapy
Pfizer has turned again to external expertise among US biotechs to find a potential gene therapy for hemophilia A, to add to its two-year collaboration with Spark Therapeutics on a gene therapy for hemophilia B, and beating off strong competition from other suitors in the process.

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