Pfizer Canada has confirmed that it has been issued with a Canadian marketing authorization, or Notice of Compliance, for its Nivestym (filgrastim) biosimilar after a Canadian federal court sided with the firm in patent-litigation proceedings with Amgen, owner of the Neupogen original.
Following a trial, five key claims of Amgen’s Canadian filgrastim drug substance patent 1,341,537 were ruled invalid by federal court...








