Repligen's (RGEN +5%) jumps after its spinal muscular atrophy drug gets a fast-track designation...

|About: Repligen Corporation (RGEN)|By:, SA News Editor

Repligen's (RGEN +5%) jumps after its spinal muscular atrophy drug gets a fast-track designation from the FDA, and a postive opinion for orphan status from the European Medicines Agency.