Zafgen reports upbeat trial results By: MarketMinute.com Stock News January 20, 2016 at 12:00 PM EST Zafgen Inc. (Nasdaq: ZFGN) reported positive results from a Phase 3 trial of beloranib in patients with Prader-Willi syndrome sending the stock price soaring $3.40 to $9.02. Related Stocks: Zafgen Inc