News & Analysis as of

Biosimilars Patent Litigation FDA Approval

Venable LLP

Fresenius Kabi and Celltrion Launch Prolia® / Xgeva® (denosumab) Biosimilars Conexxence™ / Bomyntra™ and Stoboclo® / Osenvelt®

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On July 1, 2025, Fresenius Kabi announced the U.S. launch of Conexxence™ / Bomyntra™ (denosumab-bnht), biosimilars of Amgen’s Prolia® / Xgeva® (denosumab), pursuant to a settlement agreement between the parties ending BPCIA...more

Venable LLP

Spotlight On: Neulasta® (pegfilgrastim) / Fulphila® (pegfilgrastim-jmdb) / Udenyca® (pegfilgrastim-cbqv) / Ziextenzo®...

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Pegfilgrastim Challenged Claim Types in IPR and Litigation: Claims include those challenged in litigations and IPRs. Claims are counted in each litigation and IPR, so claims from the same patent challenged in multiple...more

Venable LLP

Spotlight On: Prolia® / Xgeva® (denosumab) / Jubbonti® / Wyost® (denosumab-bbdz) / Ospomyv™ / Xbryk™ (denosumab-dssb) / Stoboclo®...

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Denosumab Challenged Claim Types in Litigation: Claims are counted in each litigation, so claims from the same patent challenged in multiple litigations are counted more than once. Within each litigation a claim is counted...more

Goodwin

Denosumab Updates: Wyost and Jubbonti Launch as First Denosumab Biosimilars in the U.S.

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On June 2, 2025, Sandoz announced that WYOST® (denosumab-bbdz) and Jubbonti® (denosumab-bbdz) are now available to patients in the United States. ...more

Venable LLP

Spotlight On: Biosimilar Litigations - June 2025

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Biosimilar Litigations include litigations relating to biosimilar/follow-on products of CDER-listed reference products. Litigations between biosimilar applicants/manufacturers and reference product sponsors as well as...more

Venable LLP

BiologicsHQ Monthly Injection - March 2025

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On March 17, 2025, Senators Chuck Grassley (R-IA), John Cornyn (R-TX), Richard Blumenthal (D-CT), and Richard Durbin (D-IL) re-introduced the “Affordable Prescriptions for Patients Act” (“APPA”), which previously passed the...more

Goodwin

Regeneron, Mylan, and Biocon Settle in Aflibercept BPCIA Litigation

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On April 22, 2025, the U.S. District Court for the Northern District of West Virginia entered a Stipulation and Order Vacating Permanent Injunction and Dismissing All Claims and Counterclaims with Prejudice in In re:...more

Venable LLP

Spotlight On: Biosimilar Litigations - April 2025

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Biosimilar Litigations include litigations relating to biosimilar/follow-on products of CDER-listed reference products. Litigations between biosimilar applicants/manufacturers and reference product sponsors as well as...more

Venable LLP

Potential Impact of the Affordable Prescriptions for Patients Act Patent Limit on BPCIA Litigations

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On March 17, 2025, Senators Chuck Grassley (R-IA), John Cornyn (R-TX), Richard Blumenthal (D-CT), and Richard Durbin (D-IL) re-introduced the “Affordable Prescriptions for Patients Act” (“APPA”), which previously passed the...more

Venable LLP

Prolia® / Xgeva® (denosumab) Biosimilar Updates: Celltrion Biosimilar Approval, Amneal aBLA Filing, and Fresenius Kabi Litigation...

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On February 28, 2025, the FDA approved Celltrion’s Stoboclo® / Osenvelt® (denosumab-bmwo) as the third company to receive FDA approval of biosimilars of Amgen’s Prolia® / Xgeva® (denosumab). ...more

Venable LLP

FDA Accepts EYLEA® Biosimilar Application for Alvotech / Teva’s AVT06

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On February 18, 2025, Alvotech and Teva announced the FDA acceptance of an aBLA for AVT06 (aflibercept), a proposed biosimilar of Regeneron’s EYLEA® (aflibercept). This aBLA joins Celltrion’s CT-P42 (aflibercept) awaiting...more

Goodwin

Amgen Files Three IPR Petitions Challenging Bristol-Myers Squibb Anti-PD1 and Anti-CTLA-4 Antibody Combination Method of Treatment...

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On February 28, Amgen, Inc. (“Amgen”) filed three petitions for inter partes review, challenging the validity of all claims in three patents assigned to Bristol-Myers Squibb Co. (“BMS”). The claims of all three patents are...more

Venable LLP

Amgen Challenges Opdivo® / Yervoy® Combination Treatment Patents in Three IPRs

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On February 28, 2025, Amgen filed three IPRs against Bristol-Myers Squibb’s patents covering methods of treatment using a combination of Opdivo® (nivolumab), an anti-PD-1 antibody, and Yervoy® (ipilimumab), an anti-CTLA-4...more

Fish & Richardson

Biologics and Biosimilars Landscape 2024: IP, Policy, and Market Developments

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Last year marked an all-time record of 18 Food and Drug Administration (FDA) biosimilar approvals, bringing the total number of FDA-approved biosimilars to 63. Forty-one of those biosimilars have launched in the U.S. market....more

Venable LLP

FDA Approves Third Actemra® Biosimilar, Celltrion’s Avtozma® (tocilizumab-anoh)

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On January 24, 2025, the FDA approved Celltrion’s Avtozma® (tocilizumab-anoh), in intravenous and subcutaneous formulations, as the third biosimilar of Genentech’s Actemra® (tocilizumab)...more

Goodwin

Year in Review: Top Legal Developments of 2024

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​​​​​​​As 2024 has come and passed, we saw another year of significant developments in litigation involving biologics and biosimilars. The following is a recap of the top four legal developments that we covered on the Big...more

Venable LLP

Spotlight On: Biosimilar Litigations - September 2024

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Biosimilar Litigations include litigations relating to biosimilar/follow-on products of CDER-listed reference products. Litigations between biosimilar applicants/manufacturers and reference product sponsors as well as...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

Venable LLP

Venable’s BiologicsHQ Monthly Injection - August 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – August 2024...more

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Venable’s BiologicsHQ Monthly Injection - July 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – July 2024...more

Venable LLP

Venable’s BiologicsHQ Monthly Injection - June 2024

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Welcome to Venable’s BiologicsHQ Monthly Injection – June 2024...more

Fish & Richardson

Biologics and Biosimilars Landscape: IP, Policy, and Market Developments

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In this review, we discuss the most important recent developments in the biosimilars space, including new biosimilar approvals and launches, litigation under the Biologics Price Competition and Innovation Act (BPCIA),...more

Venable LLP

The First Prolia® / Xgeva® Biosimilar Approvals in the U.S.

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On March 5, 2024, the FDA approved Sandoz’s Jubbonti® and Wyost® (denosumab-bddz) as the first biosimilars of Amgen’s Prolia® and Xgeva® (denosumab). The launch date for these biosimilars has not been announced as Amgen and...more

Goodwin

Genentech and Biogen File Joint Stipulation of Dismissal in BPCIA Litigation Regarding Tocilizumab

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​​​​​​​As we previously reported, in July 2023 Genentech, Inc., Hoffmann-LaRoche, Inc., and Chugai Pharmaceutical Co., Ltd. (collectively, “Genentech”) filed BPCIA litigation against Biogen MA Inc. and Bio-Thera Solutions,...more

American Conference Institute (ACI)

[Webinar] 3rd Annual Passport to Proficiency on the Essentials of Hatch-Waxman and BPCIA - October 10th - 26th, 1:00 pm EST

Gain a comprehensive understanding of Hatch-Waxman and BPCIA essentials, a critical competency for legal and business professionals in the biopharmaceutical arena. Attend ACI’s Hatch-Waxman and BPCIA Proficiency Series...more

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