German contract development and manufacturing organization Vetter initiated construction of a new 160,000-square-foot clinical production site in Des Plaines, Illinois, with an estimated investment of $285 million. The facility will support aseptic manufacturing and include material preparation, compounding, and laboratory spaces. The site, expected to open by 2029, aims to bolster Vetter’s capacity for low-volume injectable drug candidates during early development stages and enhance its U.S. footprint alongside existing operations in Austria and Skokie, Illinois.