Shots: Sentynl, a subsidiary of Zydus, has entered into an option & license agreement with Mereo for the US commercial & global manufacturing rights to alvelestat for Alpha-1 Antitrypsin Deficiency-Associated Lung Disease (AATD-LD) Sentynl will have an exclusive option to license alvelestat in the US, while Mereo retains ex-US commercial rights; Sentynl will also hold…