Welcome to the Big Molecule Watch!


Big Molecule Watch will be posting updates and analyses on regulatory issues, litigation, legislation, and other news in the ever-developing world of biosimilars. The editors of this blog have collectively been watching and engaging with the world of biosimilars (“big molecules”) since before the inception of the biosimilar industry in the U.S., and we’re excited to share the observations of our active watch on this new forum.

If you’re looking for a primer on biologics, check out our background post introducing the world of biologics, biosimilars, and the Biologics Price Competition and Innovation Act (“BPCIA”).

We’ve also collected (and will continue to update) some reference documents that might be of interest to visitors of this blog—you can find them under the “Links” section to the right of this page.

Litigation Update: Genentech’s Motion to Dismiss Amgen’s Counterclaims Denied in Avastin Biosimilar Litigation

On February 11, 2020, in the Biogen v. Amgen BPCIA litigation regarding MVASI (bevacizumab-awwb), Amgen’s biosimilar of AVASTIN, Judge Colm Connolly of the Delaware District Court denied most of Genentech’s motion to dismiss Amgen’s affirmative defenses and counterclaims.  Amgen had pled counterclaims seeking declaratory judgments that the asserted patents are…

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Amgen Sues Pfizer Over Proposed Neulasta Biosimilar

On February 11, 2020, Amgen sued Pfizer and its affiliate Hospira for patent infringement based on their proposed biosimilar of NEULASTA (pegfilgrastim).  Pegfilgrastim is indicated for decreasing the incidence of infection in patients receiving myelosuppressive chemotherapy.  In the complaint, Amgen alleges that Hospira’s aBLA infringes U.S. Patent No. 8,273,707 (“the…

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Merck Transfers Biosimilars and Other Products to Spinoff Company

Last week, Merck announced its intention to spin-off products from its Women’s Health, legacy brands, and biosimilars businesses into a new, yet-to-be-named, independent, publicly traded company.  According to Merck, “NewCo will pursue global leadership and focused, sustainable growth in Women’s Health led by the growing and patent-protected NEXPLANON (etonogestrel implant)…

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FDA Issues Draft Guidance On Biosimilar Licensure For Fewer Than All Conditions Licensed for Reference Product

The FDA issued a draft guidance today titled “Biosimilars and Interchangeable Biosimilars: Licensure for Fewer Than All Conditions of Use for Which the Reference Product Has Been Licensed.”  In this guidance, the FDA addresses the following issues: Submission of an application seeking licensure of a proposed biosimilar or proposed interchangeable…

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Biosimilars Update: Bio-Thera Solutions BAT1706 (bevacizumab) and Pfizer RUXIENCE (rituximab)

Below are a few biosimilar-related updates from the past week. Bio-Thera Solutions announced that in a Phase III clinical trial of BAT1706 (bevacizumab), BAT1706 met its primary endpoint, demonstrating “equivalence in overall response rate (ORR) for the first-line treatment of patients with non-squamous non-small cell lung cancer.”  Bio-Thera indicated that…

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FDA’s Draft Guidance on Promotional Labeling and Advertising Considerations

Earlier this week FDA issued a draft guidance on “Promotional Labeling and Advertising Considerations for Prescription Biological Reference and Biosimilar Products.” The draft guidance addresses the truthful and non-misleading manner in which data and information concerning reference or biosimilar products must be presented. The draft guidance does not address issues…

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