Welcome to the Big Molecule Watch!

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Goodwin’s award-winning Big Molecule Watch is the best resource for daily updates and analyses of regulatory issues, litigation, legislation, and other news in the world of biologics, biosimilars and related technologies. The editors of this blog have collectively been watching and engaging with the world of biologics and biosimilars (“big molecules”) since before the inception of the biosimilar industry in the U.S.  With extensive experience representing clients at all stages of a biologic’s or biosimilar’s lifecycle, from research and development, to patents, to regulatory application and approval, and through litigation and appeals, we are excited to share our observations and insights as the industry and the law continues to develop in this exciting area.

This blog focuses on “big molecules” as opposed to “small molecules.” Small molecule drugs have low molecular weight, a simple and well-defined structure, and are chemically synthesized. In contrast, “big molecule” drugs have high molecular weight, complex structures, and are derived from living organisms. For example, aspirin is small molecule while a monoclonal antibody is a big molecule. For further reading on big molecules, consider FDA's resources on biologics.

Alvotech and Fuji Pharma Partner to Commercialize Alvotech’s Ustekinumab Biosimilar

Earlier this month, Alvotech announced that it entered into an agreement with Fuji Pharma, giving Fuji Pharma the exclusive right to commercialize its biosimilar of Stelara® (ustekinumab) in Japan.  The press release states that, in exchange for developing and providing Fuji Pharma with a commercial supply of its ustekinumab biosimilar, Alvotech will…

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Amgen Answers Coherus’s Adalimumab Complaint

As we previously reported, on January 24, 2019, Coherus filed a complaint against Amgen in the District of Delaware alleging that Amgen’s adalimumab product for sale in Europe, Amgevita™, infringes three Coherus formulation patents related to adalimumab because Amgen allegedly manufactures its European product in the United States.  As we also reported, Coherus amended its…

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PTAB Institutes PGR of Protein Refolding Patent at Issue in Filgrastim and Pegfilgrastim Litigations

U.S. Patent No. 9,856,287, which is directed to a protein refolding method, is one of the patents-in-suit in the pending Amgen v. Adello (filgrastim) BPCIA litigation and the sole patent-in-suit in the pending Amgen v. Apotex (filgrastim and pegfilgrastim) BPCIA litigation. As we previously reported, in November 2018, Adello and…

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Update on the Amgen v. Adello Filgrastim Litigation

On April 15, 2019, the parties filed their opening claim construction briefs (Amgen’s Brief; Adello’s Brief) in the Amgen v. Adello BPCIA litigation concerning Adello’s aBLA for a biosimilar of Neupogen® (filgrastim).  The patents at issue are U.S. Patent Nos. 8,940,878; 9,643,997; 8,952,138; and 9,856,287, each generally directed to the production of proteins in…

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Eculizumab Biosimilar Approved in Russia

Alexion’s Soliris® (eculizumab) is a monoclonal antibody for the treatment of paroxysmal nocturnal hemoglobinuria (PNH) and atypical hemolytic uremic syndrome (aHUS). Soliris® has already been approved in the U.S., EU, and Japan as a first line treatment. Last week, Russia approved the launch of an eculizumab biosimilar developed by Generium,…

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Sandoz Resubmits Its Biosimilar Pegfilgrastim Application

gloved hand withdraws drug solution with syringe

Last week, Sandoz announced the resubmission of its Biologics License Application (“BLA”) for its proposed biosimilar to Neulasta® (pegfilgrastim).  The resubmission is to address an FDA complete response letter that Sandoz received in June 2016.  According to the press release, the resubmission includes new data from a pivotal pharmacokinetics/pharmacodynamics study.  The study compared: …

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District Court Denies Apotex’s Motion to Dismiss Amgen’s Complaint in Second Lawsuit

Last week, the district court in Amgen v. Apotex (No. 18-61828) (S.D. Fla.) denied Apotex’s motion to dismiss Amgen’s complaint in a follow-on suit concerning Apotex’s pegfilgrastim and filgrastim biosimilar candidates. By way of background, Amgen and Apotex have been involved in multiple patent lawsuits regarding Apotex’s pegfilgrastim and filgrastim biosimilars…

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