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.

Biosimilars Development Updates: Mylan’s Pipeline, Coherus’s Adalimumab aBLA, Amgen’s Eculizumab Biosimilar

Mylan announced on its most recent quarterly earnings call that it expects to launch its rituximab and etanercept biosimilars in Europe later this year. In discussing Mylan’s biosimilars pipeline, Rajiv Malik, Mylan’s President, told market analysts, “we also have for Europe rituximab and Enbrel biosimilars, which will be most likely…

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Federal Circuit Denies Hospira’s Petition to Rehear Safe Harbor Ruling in Epoetin Biosimilar Dispute

The Federal Circuit has declined to reconsider its December 2019 affirmance of the district court ruling in the Amgen v. Hospira (epoetin alfa) dispute.  As we have previously reported, that ruling upheld a jury verdict finding (among other things) that Hospira’s manufacture of certain drug substance batches was not protected…

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District Court of Delaware Construes “Following Fermentation” in Genentech v. Amgen Trastuzumab and Bevacizumab Cases

We have previously reported on the BPCIA Genentech v. Amgen cases relating to trastuzumab and bevacizumab. This week, Judge Connolly construed the term “following fermentation” as it relates to U.S. Patent No. 8,574,869 (“the Kao patent”) to mean “after the earlier of harvesting or purification has begun.” By way of…

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BREAKING NEWS: Federal Circuit Rejects Genentech’s Bid to Block Sales of Amgen’s Trastuzumab Biosimilar

Following the oral argument three days ago, the U.S. Court of Appeals for the Federal Circuit today affirmed the lower court’s denial of Genentech’s motion for a preliminary injunction to enjoin sales of Amgen’s KANJINTI (trastuzumab-anns) biosimilar product. As we previously reported, Amgen launched KANJINTI in the United States in…

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Biosimilar Developers Comment on Regulatory Delays

Multiple biosimilar developers recently released statements regarding potential regulatory delays facing their biosimilars or follow-on biologics. Insulin As we previously reported, Biocon and Mylan are collaborating in the development of a follow-on product to Sanofi’s LANTUS (insulin glargine). On February 22, 2020, Biocon announced that the U.S. FDA had conducted…

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