Polsinelli Podcasts - FDA Denies Amgen Citizen Petition in Biosimilar Dispute
On July 24, 2025, Acting Director of the USPTO, Coke Morgan Stewart, denied institution of inter partes review in IPR2025-00601 and IPR2025-00602, but referred the petition in IPR2025-00603 to the Board in Amgen Inc. v....more
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
Etanercept 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
Adalimumab 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
On July 24, 2025, the PTO Acting Director Coke Morgan Stewart discretionarily denied Amgen’s IPR2025-00601 and IPR2025-00602 challenging Bristol-Myers Squibb’s (“BMS”) U.S. Patent Nos. 9,856,320 (“the ’320 patent”) and...more
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
Introduction - The biosimilar pathway was designed to increase competition for biologics and reduce healthcare costs. Yet 2020 saw a slowdown in biosimilar activity with the lowest number of annual biosimilar approvals since...more
PATENT CASE OF THE WEEK - Amgen Inc. v. Amneal Pharmaceuticals LLC, et al., Appeal Nos. 2018-2414, et al. (Fed. Cir. Jan. 7, 2020) - In this appeal from Markman and summary judgment opinions by the district court in a...more
It has been nearly 10 years since the U.S. Biosimilars Pathway (the Biologics Price Competition and Innovation Act) was enacted. The first biosimilar product in U.S. history was approved and launched in 2015. Ten biosimilars...more
As previously reported, earlier this year Fresenius filed a petition for inter partes review of claims 9-10, 13-21 and 23-30 of Amgen’s pegfilgrastim patent – U.S. Patent No. 9,643,997 (“997 patent”). The challenged claims of...more
Here are our picks of some legal developments to keep an eye out for in the new year: 1. Etanercept biosimilar trial decision – This past September, in the Immunex v. Sandoz BPCIA patent litigation concerning Sandoz’s...more
Since 1999, the United States Patent and Trademark Office (“Patent Office”) has permitted the claiming of antibodies by disclosing the targeted antigen. In 2002, the Federal Circuit adopted Patent Office guidelines and...more
Last week, the Patent Trial and Appeal Board (“Board”) denied institution of four IPR petitions on biologics-related patents. First, the Board denied institution of IPR2017-01987 and IPR2017-01988, both filed by Sandoz Inc. ...more
2017 was an eventful year for biosimilars in the U.S. As the number of biosimilar filings increased, important legal and regulatory decisions changed the strategic landscape of the biosimilars market for both innovators and...more
AbbVie Inc.’s Humira® (adalimumab) was the top selling drug in 2015. Unsurprisingly, it is the focus of biosimilar applicants and patent challengers aiming to get into the market. We provide this update on three events...more