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FDA Approval Celltrion Pharmaceutical Patents

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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

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FDA Approves Celltrion’s New Pediatric Formulation of STEQEYMA, Expanding Dosing Flexibility

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On June 15, 2025, Celltrion announced that the FDA has approved a new 45mg/0.5mL single-dose vial presentation of STEQEYMA (ustekinumab-stba) for subcutaneous injection. ...more

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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

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Humira® Biosimilar Yuflyma® (adalimumab-aaty) Designated as Interchangeable

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On April 14, 2025, Celltrion announced that the FDA designated Yuflyma® (adalimumab-aaty) as an interchangeable biosimilar of AbbVie’s Humira® (adalimumab). Yuflyma® is a high-concentration (100mg/mL) citrate-free...more

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Celltrion Adalimumab Biosimilar Granted Interchangeability Designation

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On April 14, 2025, Celltrion, Inc. announced that the U.S. Food and Drug Administration granted an interchangeable designation to YUFLYMA (adalimumab-aaty), its biosimilar referencing HUMIRA (adalimumab). ...more

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March Stelara® Biosimilar Launches: Fresenius Kabi’s Otulfi® and Celltrion’s Steqeyma™

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On March 3, 2025, Fresenius Kabi and Formycon announced the launch of Otulfi™ (ustekinumab-aauz), a provisionally interchangeable biosimilar of Janssen / Johnson & Johnson’s Stelara® (ustekinumab), subject to the...more

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FDA Approves First Interchangeable Biosimilar of Xolair®: Celltrion’s Omlyclo® (omalizumab-igec)

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On March 7, 2025, the FDA approved Celltrion’s Omlyclo® (omalizumab-igec), the first interchangeable biosimilar of Genentech’s Xolair® (omalizumab). Omlyclo® was approved for all of Xolair®’s approved indications, including...more

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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

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aBLA Updates: Stelara® Biosimilar Steqeyma™ (ustekinumab-stba) FDA-Approval; Lucentis® Biosimilar Xlucane™ (ranibizumab) aBLA...

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On December 17, 2024, the FDA approved Celltrion’s Steqeyma™ (CT-P43) (ustekinumab-stba) as the seventh biosimilar of Janssen / Johnson & Johnson’s Stelara® (ustekinumab).  Celltrion previously reached a settlement agreement...more

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Year in Review: The Top-Five U.S. Biosimilar Market Developments of 2019

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As we start the new year, we look back at the top U.S. biosimilar market developments of 2019. Here are some of our highlights, in no particular order...more

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Teva and Celltrion Launch Rituximab Biosimilar in US

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On November 7, Teva Pharmaceuticals USA, Inc., and Celltrion, Inc., announced that TRUXIMA® (rituximab-abbs) will be available in the United States beginning November 11. As we previously reported, TRUXIMA® is the first...more

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