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Biosimilars Celltrion Patent Litigation

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Amgen Files BPCIA Complaint Against Celltrion Regarding Denosumab

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On May 28, Amgen filed a BPCIA complaint in the District Court for the District of New Jersey against Celltrion related to its denosumab biosimilar of Amgen’s PROLIA and XGEVA. This is the second BPCIA litigation regarding...more

Venable LLP

Regeneron Files Second BPCIA Complaint Against Celltrion’s Proposed EYLEA® Biosimilar CT-P42

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On May 17, 2024, Regeneron filed a second infringement litigation against Celltrion’s proposed EYLEA® (aflibercept) biosimilar CT-P42, Case No. 1:24-cv-00053 (N.D.W. Va.). The aBLA for CT-P42 was submitted to the FDA in June...more

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The First Biosimilar Disputes at the Unified Patent Court (UPC)

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As the era of biologics and biosimilar litigations heats up in the United States, Europe’s Unified Patent Court (UPC) is also taking center stage with the first two biosimilar disputes filed in March and April....more

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Updates on Aflibercept BPCIA Litigation - January 2024

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On January 10, 2024, Regeneron Pharmaceuticals, Inc. (“Regeneron”) filed a Complaint in the U.S. District Court for the Central District of California against Amgen Inc. (“Amgen”) alleging infringement of 32 patents under the...more

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Regeneron’s Disputes with Celltrion, Samsung Bioepis, and Formcycon on Service and Personal Jurisdiction in Aflibercept BPCIA...

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As we have previously reported, in November 2023 Regeneron Pharmaceuticals, Inc. (“Regeneron”) filed complaints against Celltrion,  Samsung Bioepis and Formycon (collectively, “the Defendants”) in the U.S. District Court for...more

Venable LLP

BPCIA Litigation Related to Proposed Eylea Biosimilar CT-P42 Filed

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On November 8, 2023, Regeneron Pharmaceuticals Inc. filed a BPCIA Complaint against Celltrion Inc. in the district court for the northern district of West Virginia, asking the Court to block Celltrion’s biosimilar product...more

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PTAB Issues Final Written Decisions Finding Claims of Tocilizumab-related Patents Invalid

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On August 29, 2023, the PTAB issued final written decisions in IPR2022-00578 and IPR2022-00579, filed by Celltrion on two patents related to tocilizumab — U.S. Patent Nos. 8,580,264 and 10,874,677, owned by Chugai Seiyaku...more

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Celltrion Stelara (Ustekinumab) Settlement With J&J

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It has been reported that Celltrion has finalized a settlement with Johnson & Johnson (“J&J”) in the United States relating to CT-P43, Celltrion’s ustekinumab biosimilar to J&J’s STELARA®, which would permit Celltrion to...more

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Trastuzumab, Rituximab, and Bevacizumab Litigation Updates

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Below is a rundown of some recent developments in BPCIA litigations concerning biosimilars of Genentech’s Herceptin® (trasuzumab), Rituxan® (rituximab), and Avastin® (bevacizumab). Celltrion v. Genentech (trastuzumab) and...more

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