The loss of Biogen, Inc.'s blockbuster multiple sclerosis pill Tecfidera (dimethyl fumarate) to generics in the US was a big blow to the company in 2020, but in an unexpected development, Biogen has been issued new patents – raising questions about whether there could be a renewed commercial opportunity for the brand.
Blocking generics from the market nearly a year after they launched would certainly be an unusual turn of events and...








