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Biosimilars Patent Infringement Regeneron

Goodwin

Recent PTAB Developments for Regeneron’s Aflibercept Formulation Patent

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Earlier this month, a Patent Trial and Appeal Board (“PTAB”) panel denied institution of two petitions that were filed separately by Samsung Bioepis (IPR2025-00176) and Formycon (IPR2025-00233) for inter partes review (“IPR”)...more

Goodwin

Regeneron Files Another Complaint Against Amgen in Aflibercept BPCIA Litigation

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On June 17, 2025, Regeneron Pharmaceuticals, Inc. (“Regeneron”) filed another complaint against Amgen Inc. (“Amgen”) under the BPCIA, alleging that Amgen’s aflibercept biosimilar, PAVBLU®, infringes U.S. Patent No. 12,331,099...more

Venable LLP

Regeneron and Biocon Settle Litigation over EYLEA® Biosimilar Yesafili™

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On April 15, 2025, Biocon announced it reached a settlement agreement with Regeneron, dismissing CAFC Appeal No. 24-2002 and Case No. 1:22-cv-00061 (N.D.W. Va.) / MDL 1:24-md-03103 (N.D.W. Va.) and allowing the...more

Haug Partners LLP

Federal Circuit Affirms Presumption of Separateness in Regeneron Pharmaceuticals, Inc. v. Mylan Pharmaceuticals Inc. et al., C.A....

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In a formulation claim, if elements are listed separately, does this necessarily entail that those elements are “separate and distinct components”?  This was the question before the district court in Regeneron...more

Venable LLP

Federal Circuit Affirms Preliminary Injunction Decisions for EYLEA® Biosimilars

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On March 5, 2025, the Federal Circuit affirmed the grant of a preliminary injunction against the launch of Celltrion’s proposed EYLEA® (aflibercept) biosimilar CT-P42 in CAFC Case Nos. 24-2058 and 24-2147 (appealing from...more

Goodwin

Federal Circuit Affirms Denial of Injunction Against Amgen in Aflibercept BPCIA Litigation

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On March 14, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed the District Court for the Northern District of West Virginia’s denial of a preliminary injunction against Amgen Inc. (“Amgen”) in the ongoing...more

Venable LLP

Celltrion Files IPR on Regeneron’s EYLEA® Patent

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On January 15, 2025, Celltrion filed IPR2025-00456 against Regeneron’s U.S. Patent No. 11,084,865 (“the ’865 patent”), challenging claims 1-17, 19-42, 44-50 as anticipated and claims 1-50 as obvious....more

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Are Reference Product Sponsors Asserting More Patents in BPCIA Litigation?

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On October 24, 2014, Amgen initiated the first litigation under the Biologics Price Competition and Innovation Act (“BPCIA”), asserting infringement of two patents. Over the last two calendar years, Amgen, Biogen, Genentech,...more

Venable LLP

Amgen Launches Pavblu™ as the First EYLEA® Biosimilar in the U.S.

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Amgen announced during its Q3 2024 Earnings Call that it had launched Pavblu™ (aflibercept-ayyh) as the first biosimilar of Regeneron’s EYLEA® (aflibercept) to be marketed in the U.S....more

Venable LLP

Regeneron Files BPCIA Complaint Against Sandoz’s EYLEA® Biosimilar Enzeevu™ Following FDA Approval

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Regeneron filed an eighth BPCIA litigation (Case No. 2:24-cv-08760 (D.N.J.)) related to an EYLEA® (aflibercept) biosimilar, against Sandoz’s Enzeevu™ (aflibercept-abzv).  The Complaint alleges infringement of 46 of...more

Goodwin

Update on Aflibercept BPCIA Litigation

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In a sealed order that issued on June 11, the Court granted a permanent injunction in favor of Regeneron against Mylan/Biocon in the pending aflibercept BPCIA litigation. ...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

Goodwin

Court Cancels Injunction Hearings In Aflibercept BPCIA Litigation; Regeneron May Seek Temporary Restraining Orders

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As we previously reported, the Judicial Panel on Multidistrict Litigation recently granted Regeneron Pharmaceutical’s (“Regeneron”) motion to establish a multi-district litigation (“MDL”) for its aflibercept BPCIA litigation....more

Goodwin

Year in Review: Top Legal Developments of 2023

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​​​​​​​As we settle into 2024, we reflect on the significant legal developments of 2023 that hold potential impact on the biologics and biosimilars market. The following is a recap of some of the top five legal decisions and...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

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Regeneron Sues Samsung Bioepis for Proposed Biosimilar of EYLEA in West Virginia District Court

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​​​​​​​Regeneron Pharmaceuticals, Inc. (“Regeneron”) filed a Complaint on November 22 against Samsung Bioepis Co., Ltd. (“Bioepis”) in the U.S. District Court for the Northern District of West Virginia, alleging infringement...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

Goodwin

Expedited Trial Ordered in Regeneron Aflibercept BPCIA Case Against Mylan

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The court has issued a scheduling order in Regeneron’s aflibercept BPCIA case against Mylan. The court scheduled a 2-week trial in June 2023, less than a year from Regeneron’s filing of its complaint in August 2022....more

Goodwin

Regeneron Files First BPCIA Complaint Regarding Biosimilar Eylea against Mylan in West Virginia District Court

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Regeneron filed a complaint yesterday against Mylan in the U.S. District Court for the Northern District of West Virginia, alleging infringement of twenty-four patents under the BPCIA based on Mylan’s submission of an aBLA...more

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