Over the past several weeks, there have been numerous developments in U.S. patent litigation activity relating to biosimilars of Neupogen® (filgrastim) and Neulasta® (pegfilgrastim). Below is a summary of these developments. Amgen v. Adello: New BPCIA Complaint First, on March 8, 2018, Amgen filed a complaint against Adello Biologics in the…