Amgen Inc. v. Sandoz Inc., No. 18-1551 (Fed. Cir. 2019)Annotate this Case
Amgen created and commercialized two related biologic products, filgrastim (Neupogen®) and pegfilgrastim (Neulasta®), indicated for treating neutropenia, a deficiency of white blood cells. Neutropenia often results from exposure to certain chemotherapeutic regimens or radiation therapy during cancer treatment. In 2014, Sandoz submitted to the FDA an abbreviated Biologics License Application (aBLA) to market a biosimilar filgrastim product. While Sandoz’s aBLA referenced Neupogen®, Sandoz elected not to provide Amgen with its aBLA or manufacturing information. Amgen sought a declaratory judgment that Sandoz’s proposed biosimilar would infringe its patent, Biologics Price Competition and Innovation Act, 35 U.S.C. 271(e)(2)(C); 42 U.S.C. 262(l)(9)(C) Sandoz received FDA approval for its filgrastim biosimilar, Zarxio®. After Sandoz launched Zarxio®, Amgen amended its complaint to plead infringement under 35 U.S.C. 271(e)(2)(C)(ii), (g). In 2015, Sandoz submitted an aBLA to market a biosimilar pegfilgrastim product referencing Neulasta®. Amgen filed a complaint, alleging infringement of that patent. Sandoz has not yet received approval for its proposed pegfilgrastim biosimilar. The Federal Circuit affirmed summary judgment of noninfringement, upholding the district court’s construction of “disease treating-effective amount of at least one chemotherapeutic agent” as limited to “[a]n amount sufficient to treat a disease for which at least one chemotherapeutic agent is prescribed.”
The court issued a subsequent related opinion or order on September 3, 2019.