News/ R&D Zafgen ends development of Prader-Willi drug Richard Staines Biotech, orphan, Prader-Willi syndrome, Zafgen 0 Comment Share price plummets after biotech said drug is unsafe. Share X Zafgen ends development of Prader-Willi drug https://pharmaphorum.com/news/zafgen-ends-development-prader-willi-drug/