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.

Samsung Bioepis Announces Four-Year Follow-Up Data for its Trastuzumab Biosimilar and 24-Week Interim Results from Phase 3 Trial of its Proposed Ranibizumab Biosimilar

Samsung Bioepis Co., Ltd. announced on Friday that the four-year follow-up data from a Phase 3 study for ONTRUZANT, a biosimilar of HERCEPTIN (trastuzumab), will be presented later this month at the ASCO20 Virtual Scientific Program.  The data are from an ongoing five-year follow-up study assessing the cardiac safety and…

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Study Says that Conversion of Intermediate-Risk FN Patients to Pegfilgrastim Biosimilar Likely to Have Large Budget Impact

A new study funded by Sandoz related to the budget impact of expanding patient access to biosimilar pegfilgrastim (Ziextenzo) was presented during the Academy of Managed Care Pharmacy’s AMCP eLearning Days virtual meeting in April. The study found that expanding access to Ziextenzo to patients with intermediate risk of developing febrile…

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Biosimilar Buyouts: AbbVie Buyout of Allergan Receives Approval of Irish High Court; Gedeon Richter Buys Tocilizumab Biosimilar

On May 8, 2020, AbbVie announced that it completed its acquisition of Allergan plc, having received approval by the Irish High Court.  AbbVie and Allergan had previously announced, on May 5, 2020, that the U.S. Federal Trade Commission accepted the proposed consent order in connection with the acquisition.  As part of…

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AryoGen’s bevacizumab biosimilar BE1040V found noninferior to AVASTIN in phase III study

In a study published in Clinical Therapeutics on April 22, AryoGen Pharmed’s proposed bevacizumab biosimilar, BE1040V (STIVANT), was found to be noninferior to the reference product (AVASTIN) in a Phase III clinical trial in patients with metastatic colorectal cancer.  AryoGen Pharmed is a pharmaceutical manufacturer based in Iran that specializes…

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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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