Regulatory milestones

Enanta Pharmaceuticals Inc. (NASDAQ:ENTA) gained $2.23 to $35.62 last week after partner AbbVie Inc. (NYSE:ABBV) submitted an NDA to FDA for its all-oral regimen comprising ABT-450 plus AbbVie's Norvir ritonavir, ABT-267 and ABT-333 with and without ribavirin to treat HCV genotype 1 infection.