Q1 2020 Biosimilar IPR Update: Drop in New Filings
At the end of 2017, inter partes review (IPR) proceedings for biosimilar products were on the rise. This was followed by a dip in the number of new filings in FY 2018 and the first half of 2019. Through Q1 2020, this downward trend has continued. Specifically, there has been one new biosimilar IPR filing in the nine-month period from the beginning of Q3 2019 through the end of Q1 2020, leading to a total of 102 total biosimilar patent IPRs. See Fresenius Kabi USA, LLC et al. v. Amgen, Inc. et al., IPR2020-00314 (December 20, 2019).