Polsinelli Podcasts - FDA Denies Amgen Citizen Petition in Biosimilar Dispute
On March 5, 2025, the U.S. Court of Appeals for the Federal Circuit affirmed the District Court for the Northern District of West Virginia’s entry of a preliminary injunction preventing Celltrion, Inc. (“Celltrion”) from...more
On January 23, 2025, the District Court for the District of New Jersey entered a Consent Judgment and Injunction in view of a settlement agreement between Amgen and Celltrion resolving the BPCIA litigation regarding...more
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
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
On May 28, 2024, Amgen filed a BPCIA litigation, Case No. 1:24-cv-06497 (D.N.J.), against Celltrion’s proposed Prolia® / Xgeva® (denosumab) biosimilar CT-P41 alleging infringement of 29 of Amgen’s patents, including one...more
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
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
Emergency Motion for Entry of a PI Schedule Against Celltrion, Formcyon, and Samsung Bioepis - On December 28, Regeneron filed emergency motions for entry of a PI schedule in its aflibercept BPCIA cases against Celltrion,...more
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
Regeneron filed a Complaint on November 8 against Celltrion in the U.S. District Court for the Northern District of West Virginia, alleging infringement of thirty-eight patents under the BPCIA based on Celltrion’s...more
On August 18, Samsung Bioepis Co., Ltd. (“Samsung Bioepis”), filed a petition for Inter Partes Review, IPR2023-01312, challenging the validity of claims 1-18 of U.S. Patent No. 10,464,992, assigned to Regeneron...more
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
On November 1, 2018, Genentech and its co-plaintiffs dismissed the lawsuits they brought against Celltrion and Teva under the BPCIA in the District of New Jersey, in which the plaintiffs alleged that Celltrion’s filing of an...more
Last month, in Celltrion, Inc. v. Genentech, Inc., District Judge Jeffrey S. White of the U.S. District Court for the Northern District of California granted two motions to dismiss filed by Defendants Genentech, Inc.; Hoffman...more
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
On January 11, 2018, Celltrion and Teva filed two lawsuits against Genentech in the District Court for the Northern District of California. Case No. 3:18-cv-00274 relates to Celltrion’s Herzuma®, its trastuzumab biosimilar. ...more
Janssen Biotech Inc. and Celltrion Healthcare have taken the next step over Janssen’s blockbuster arthritis biologic medicine Remicade (infliximab) and Celltrion’s biosimilar, as required by the Biologics Price Competition...more
Below is our midwinter update on the U.S. patent litigations concerning proposed or approved biosimilar products. For additional details, please consult our BPCIA Litigation Summary Chart or our previous quarterly updates...more
With the U.S. biosimilar pathway created by the Biologics Price Competition and Innovation Act (BPCIA) now fully up and running, there are now seven ongoing biosimilar litigations in the U.S. Here are brief updates on recent...more