What's Next for Spark Therapeutics

Spark Therapeutics (NASDAQ: ONCE) launched its first gene therapy, Luxturna, earlier this year to fanfare, but a much larger opportunity to develop a one-and-done treatment for hemophilia is on the horizon. Management recently reported updated results for its hemophilia A therapy, SPK-8011, and it officially transferred development of its hemophilia B drug, SPK-9011, to collaboration partner Pfizer (NYSE: PFE).