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.

Updates on Rituximab Proposed Biosimilars

The past few days have seen a lot of activity on the rituximab biosimilar front. According to a joint press release, Sanofi and JHL Biotech, a biopharmaceutical company based in China, formed an alliance to collaborate on the development and commercialization of a rituximab biosimilar and various pharmaceutical products in China….

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Mylan-Biocon Publish Positive Results for Proposed Trastuzumab Biosimilar

Earlier this year, we reported that Mylan and Biocon submitted an aBLA for MYL-1401O, a proposed biosimilar to Genentech’s Herceptin® (trastuzumab).  Earlier this week, an article published in the Journal of the American Medical Association (JAMA), titled Effect of a Proposed Trastuzumab Biosimilar Compared With Trastuzumab on Overall Response Rate in Patients With ERBB2…

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Success for Pfizer’s Trastuzumab Biosimilar in Phase 3 Clinical Trials

Today, Pfizer reported that their trastuzumab biosimilar to Roche’s Herceptin® has shown equivalence in a Phase 3 clinical trial measuring objective response rate (ORR) when taken in combination with paclitaxel to treat HER-positive metastatic breast cancer patients. Pfizer also reported success in a separate study, REFLECTIONS B3271004, evaluating this biosimilar in early…

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