On the heels of positive Phase 2 data for its lead product, an experimental type 2 diabetes treatment, Zafgen (NASDAQ: [[ticker:ZFGN]]) has hired Priya Singhal as head of R&D. Singhal was most recently a senior VP at Biogen. Zafgen is trying to bounce back from the 2016 decision to abandon its then-lead drug candidate beloranib, a potential treatment for obesity in patients with a rare disease known as Prader-Willi syndrome.