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.

Amgen Responds to Genentech's Letter in Bevacizumab Case

As we reported on Friday, Genentech has informed the District of Delaware that it will not file an amended complaint in its declaratory judgment action against Amgen regarding Amgen’s application to market a biosimilar of Avastin® (bevacizumab). Today, Amgen filed a letter in response, informing the court that, on March 24, Genentech…

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Genentech Will Not File Amended Complaint in Case Against Amgen

As we previously reported, the District of Delaware granted a motion to dismiss by Amgen in Genentech v. Amgen, finding a lack of subject matter jurisdiction over Genentech’s declaratory judgment complaint under the Federal Circuit’s holding in Amgen v. Sandoz.  The court granted the motion with leave for Genentech to amend its complaint…

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Summary of Sandoz’s Response and Reply Brief in Sandoz v. Amgen

On March 31, Sandoz filed its consolidated response and reply brief in Sandoz v. Amgen. We have previously covered Amgen’s consolidated opening and responsive brief and Sandoz’s opening brief.  Amgen’s final reply brief was filed today, and argument is scheduled for April 26, 2017. Sandoz’s brief replied to Amgen’s counterarguments regarding whether an…

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Aragen Bioscience Files Three Petitions for IPR on Cell-Line Patents

Aragen Bioscience, Inc. and Transposagen Biopharmaceuticals, Inc. have filed three petitions for IPR of Kyowa Hakko Kirin Co., Ltd.’s patents:  IPR2017-01262 on U.S. Patent 7,425,446; IPR2017-01252 on U.S. Patent 6,946,292; and IPR2017-01254 on U.S. Patent 8,067,232.  According to the petitions, the challenged claims are “directed to an isolated mammalian host…

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Amgen V. Hospira: Federal Circuit Oral Argument Held

On April 3, 2017, the Federal Circuit heard oral argument concerning the discovery dispute between Amgen and Hospira in their litigation concerning Hospira’s proposed biosimilar of Amgen’s product Epogen®/ Procrit® (epoetin alfa) (audio available here).  In this dispute, Amgen is seeking to compel production of information concerning Hospira’s manufacturing process, including…

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Immunex Files Complaint Against Sanofi and Regeneron

On April 5, Immunex (a wholly-owned subsidiary of Amgen) filed a complaint against Sanofi and Regeneron related to Sanofi and Regeneron’s Dupixent® (dupilumab) product, which received FDA approval last week.  Immunex’s complaint was filed in the District Court for the Central District of California and asserts patent infringement and seeks a declaratory judgment of…

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