After making a splash in the U.K. earlier this year, GSK is laying out plans for its biggest U.S. manufacturing investment yet. | In its biggest U.S. manufacturing investment yet, GSK is spending up to $800 million to double the size and capacity of its site in Marietta,

The British pharma is making what it calls its largest U.S. manufacturing investment. Elsewhere, AbbVie expanded a longstanding partnership and Marinus said it would lay off staff.

Big Pharma firm GSK plans to invest up to $800 million to expand its manufacturing operations in Pennsylvania and create 200 new jobs.

GSK plans to invest $800 million in its East Donegal Township vaccine packaging facility over the next four years, in an expansion project that would add research and manufacturing capabilities