On June 2, 2025, Sandoz announced the launch of Jubbonti® / Wyost® (denosumab-bbdz), the first Prolia® / Xgeva® (denosumab) interchangeable biosimilars to launch in the U.S....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 October 4, 2024, Amgen filed Case No. 1:24-cv-09555 (N.D. Ill.) against Fresenius Kabi, alleging FKS518 (denosumab), its proposed Prolia® / Xgeva® (denosumab) biosimilar, would infringe 33 of Amgen’s patents....more
On August 26, 2024, Regeneron filed a BPCIA complaint in the District Court for the District of New Jersey against Sandoz Inc. related to Sandoz’s ENVEEZU (aflibercept-abzv)....more
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
Amgen and Sandoz reached a settlement in Case No. 1:23-cv-02406 (D.N.J.) on April 29 just hours before a New Jersey District Court Judge (Christine O’Hearn) was scheduled to announce her ruling on Amgen’s preliminary...more
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
Welcome to our quarterly update relating to biologics and biosimilars, including post-grant and patent litigation challenges to blockbuster biologics. Since the enactment of the Biologics Price Competition and Innovation Act...more
As we previously reported, Biogen sued Sandoz and Polpharma (“Defendants”) in a BPCIA litigation related to Defendants’ natalizumab biosimilar. On October 19, 2022, Biogen filed a Motion for Preliminary Injunction and Motion...more
In October 2022, we reported that Biogen was seeking a preliminary injunction in its BPCIA case brought in the District of Delaware against Sandoz relating to Sandoz’s proposed multiple sclerosis biosimilar of TYSABRI...more
On May 1, 2023, Amgen filed a BPCIA complaint in the District of New Jersey against Sandoz related to Sandoz’s denosumab biosimilar of Amgen’s PROLIA® and XGEVA®. This is Amgen’s first BPCIA case filed with respect to a...more
On March 21, 2023, Sandoz, announced FDA approval of its citrate-free high-concentration formulation (HCF) of its biosimilar HYRIMOZ® (adalimumab-adaz) injection....more
Biogen seeks a preliminary injunction in its BPCIA case against Sandoz related to Sandoz’s proposed biosimilar of TYSABRI (natalizumab). On October 20, 2022, the Court issued a sealed order on the parties’ joint...more
As previously reported, Amgen sought leave to appeal a decision of the Federal Court of Appeal (2020 FCA 188) affirming Justice Southcott’s decision that the relevant claims of its filgrastim (NEUPOGEN) patent were invalid...more
The fight over proposed Enbrel® (etanercept) biosimilar Erelzi® continues. Sandoz Inc., Sandoz International GmbH and Sandoz GmbH (“Sandoz”) recently filed a petition for certiorari requesting review of the judgement of the...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
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®... ...more
The 10th anniversary of the U.S. biosimilar pathway the Biologics Price Competition and Innovation Act of 2009 (BPCIA) is quickly approaching and marks an expansion of the U.S. biosimilar market. The BPCIA, signed into law...more
Introduction - In many ways, 2019 was a notable year for biosimilars in the U.S. FDA approved the 26th biosimilar product and the 13th biosimilar product was launched in the U.S. market. These developments were...more
Following last month’s dismissal of the Amgen v. Kashiv filgrastim biosimilar litigation, yesterday Amgen and Tanvex filed a joint stipulation of dismissal in their BPCIA litigation concerning Tanvex’s filgrastim biosimilar...more
As of the end of 2019, reference product sponsors (“RPSs”) have filed dozens of patent infringement cases against biosimilar manufacturers under the Biologics Price Competition and Innovation Act (“BPCIA”). The doctrine of...more
As 2019 draws to a close, a handful of actions regarding biologics are pending in the federal courts. The current cases are listed below, in order from most-recently-filed to oldest....more
On November 22, 2019, the parties in the Amgen v. Kashiv BPCIA litigation, concerning Kashiv’s proposed biosimilar of NEUPOGEN (filgrastim), submitted a stipulation of dismissal indicating that they have “agree[d] to the...more
As we have previously reported on Sandoz’s Biologics License Application (“BLA”) for its proposed biosimilar to Neulasta® (pegfilgrastim), Sandoz received a complete response letter from FDA, and had resubmitted its...more
The US Court of Appeals for the Federal Circuit affirmed a summary judgment non-infringement ruling, finding that where both the claim language and the specification require that the disclosed steps be performed in the order...more