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.

TRUXIMA launches as first U.S. Rituxan® biosimilar approved for RA

gloved hand withdraws drug solution with syringe

Teva and Celltrion Healthcare announced today the U.S. launch of TRUXIMA® (rituximab-abbs) for rheumatoid arthritis (RA).  TRUXIMA®, which originally launched in November 2019, is now approved to treat RA, non-Hodgkin lymphoma (NHL), chronic lymphocytic leukemia (CLL), and granulomatosis with polyangiitis (GPA) (Wegener’s Granulomatosis) and microscopic polyaniitis (MPA) in adult patients. …

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FDA/FTC Joint Workshop on a Competitive Marketplace for Biosimilars – Comments from Stakeholders

As we have previously reported, in February 2020 FDA and FTC announced a joint collaboration “to advance competition in the biologic marketplace.” On March 9th, the two agencies held a public workshop to discuss their “collaborative efforts to support appropriate adoption of biosimilars, discourage false or misleading statements about biosimilars, and…

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Federal Circuit Finds Pfizer’s RUXIENCE Plans Insufficient to Establish Standing to Appeal IPR

On April 27, 2020, the Federal Circuit issued a non-precedential opinion ruling that Pfizer failed to establish Article III standing in a pair of IPR appeals.  At the PTAB, Pfizer had challenged the validity of Chugai’s patents (7,332,289 and 7,927,815) covering processes relevant to the manufacture of rituximab.  In support…

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Xbrane Biopharma Plans to Continue Phase III Trial of its Xlucane® (Ranibizumab) Biosimilar Product

Swedish biotechnology company Xbrane Biopharma reports that, despite the difficulties posed by the Covid-19 pandemic, it will continue to recruit patients for the ongoing Phase III trial of its Xlucane® (ranibizumab) biosimilar product, and that it is still on track towards regulatory approval ahead of Lucentis® patent expiration in the…

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