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Pfizer Files Lawsuit in Australia to Halt Sales of BRENZYS (etanercept)

Last week Pfizer filed a lawsuit in a federal court of Australia against respondents Samsung Bioepis, Merck, Sharp & Dohme, Organon, and Arrow, to halt sales of their biosimilar BRENZYS (etanercept).  Pfizer alleges that the respondents infringe Australian Patent No. 2005280034, titled “Production of polypeptides,” with claims directed to cell…

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PTAB Institutes Two More IPRs on Tocilizumab Patents Challenged by Fresenius

Earlier this week, the PTAB instituted inter partes review of two patents directed to methods of treating rheumatoid arthritis by subcutaneously administering tocilizumab and devices for subcutaneously administering tocilizumab, respectively.  Fresenius filed petitions for inter partes review of U.S. Patent Nos. 8,580,264 (“the ’264 patent”), owned by Chugai and Roche,…

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Fresenius Files IPR Petitions Challenging Chugai/Roche/Genentech Rheumatoid Arthritis Patents

On August 18, 2021, Fresenius Kabi USA, LLC and Fresenius Kabi SwissBioSim GmbH (collectively, “Fresenius”) filed Petitions for Inter Partes Review of U.S. Patent No. 10,874,677 (IPR 2021-01336) and U.S. No. 5,80,264 (IPR 2021-01288) .  The ‘264 patent claims are directed to methods of treating rheumatoid arthritis patients using a…

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