AVROBIO, Inc. (Nasdaq: AVRO), a leading clinical-stage gene therapy company working to free people from a lifetime of genetic disease, today announced an agreement to sell its investigational hematopoietic stem cell (HSC) gene therapy program for the treatment of cystinosis to Novartis for $87.5 million in cash. AVROBIO retains full rights to its portfolio of first-in-class HSC gene therapies for Gaucher disease type 1 and type 3, Hunter syndrome and Pompe disease. Proceeds from this transaction are expected to extend the Company