As one BPCIA case came to a close in May[1], another got underway. On May 1, 2023, Amgen filed a complaint in the District of New Jersey, accusing Sandoz of infringing patents that relate to denosumab, the active ingredient in Amgen’s PROLIA and XGEVA. PROLIA is prescribed for a high risk of bone
Sandoz
Tysabri® (natalizumab) Litigation Begins
On September 9, 2022, Biogen Inc. and Biogen MA Inc. (“Plaintiffs”) filed suit against Sandoz Inc., Sandoz International GMBH, Sandoz GMBH, and Polpharma Biologics S.A. (collectively, “Defendants”) in the District of Delaware concerning twenty-eight different patents. Although the complaint was filed under seal, the complaint appears to be related to Defendants’ natalizumab biosimilar (proprietary name…
Federal Circuit Refuses to Reconsider Its Panel Decision Finding No Common Ownership of Immunex’s Enbrel Patents
Last week, the Federal Circuit denied Sandoz’s petition for an en banc rehearing of its precedential July 1st panel decision upholding two of Immunex’s patents covering Enbrel®.
As explained in the petition, Immunex was the first to make etanercept, the tumor necrosis factor (TNF) receptor fusion protein that is the active ingredient in Enbrel® (used…
Federal Circuit Upholds Panel’s Noninfringement Ruling in Amgen v. Sandoz Appeal
As we previously reported, earlier this year the Federal Circuit affirmed a district court’s finding that Sandoz’s ZARXIO filgrastim biosimilar and proposed pegfilgrastim biosimilar do not infringe Amgen’s patents. The patents-at-issue were Amgen’s U.S. Patent Nos. 8,940,878 (“the ’878 patent”) and 6,162,427 (“the ’427 patent”). The ’872 patent is directed towards methods of purifying…
The Federal Circuit Affirms District Court Finding that Sandoz Does Not Infringe Amgen’s Protein Purification Patent
In a recent precedential opinion[1], the Federal Circuit rejected arguments by Amgen that a single step purification process used by Sandoz for its G-CSF biosimilar infringed claims of Amgen’s patent describing a multistep purification procedure for proteins expressed in a non-mammalian system.
In this case, the Federal Circuit explained that the doctrine of…
Another Biosimilar Receives FDA Approval and Is Confronted with Litigation
On April 25, 2019, the U.S. Food and Drug Administration (“FDA”) approved new biosimilar product EticovoTM (etanercept-ykro) by Samsung Bioepis. Eticovo is a biosimilar to Enbrel® (etanercept), which is marketed by Amgen, Inc. (“Amgen”). Like Enbrel, Eticovo was approved across five eligible indications for the treatment of rheumatoid arthritis, ankylosing spondylitis, plaque psoriasis, psoriatic…
Sandoz Files Declaratory Judgment of Non-Infringement For Filgrastim-Related Patent
On February 21, 2019, Sandoz Inc. (“Sandoz”) filed suit against Amgen Inc. and Amgen Manufacturing Limited (collectively “Amgen”) seeking declaratory judgment of non-infringement and invalidity of Amgen’s U.S. Patent No. 9,643,997 (“the ʼ997 patent”). The ʼ997 patent is directed to methods of purifying a protein expressed in a non-native limited solubility form in a non-mammalian…
AbbVie Files Suit Against Sandoz Alleging Infringement of Two Humira®-Related Patents
On August 10, 2018, AbbVie, Inc. and AbbVie Biotechnology Ltd. (collectively “AbbVie”) sued Sandoz Inc., Sandoz GMBH, and Sandoz International GMBH (collectively “Sandoz”) in the district of New Jersey alleging infringement of two patents related to Humira®: U.S. Patent 9,187,559 (“the ʼ559 patent”) and U.S. Patent No. 9,750,808 (“the ʼ808 patent”).
According to the complaint…
PTAB Denies Another IPR Petition Relating to Adalimumab
The Patent Trial and Appeal Board (“PTAB”) recently denied Sandoz’s petition for inter partes review (“IPR”) of claims 1-30 of AbbVie’s patent, U.S. Patent No. 9,187,559 (“the ’559 patent”). The ’559 patent is directed towards a multiple-variable dose regimen for treating idiopathic inflammatory bowel disease. The patent discloses administering a high dose of a TNFα…
PTAB Denies Sandoz’s IPR Petition for Humira®-Related Patent
Earlier this month, the Patent Trial and Appeal Board (“PTAB” or “the Board”) denied institution of Sandoz’s petition for inter partes review of Abbvie’s patent, U.S. Patent No. 9,512,216 (“the ’216 patent”), directed to methods for treating moderate to severe chronic plaque psoriasis with a human anti-tumor necrosis factor α (TNFα) antibody.[1] The petition,…