With the US market cannibalized following several generic launches, Biogen, Inc. had earlier this year warned that generic competition to its Tecfidera (dimethyl fumarate) brand in the EU could appear “as early as the first half of 2022” as it continues efforts to overturn an unfavorable ruling that chopped the drug’s data- and marketing-protection periods.
The outcome of the originator’s ongoing challenges to Tecfidera’s exclusivity was “difficult to predict,”