by April Breyer Menon | Nov 27, 2025
On November 25, 2025, Sarepta Therapeutics filed two petitions for inter partes review (“IPR”) challenging Genzyme’s patents relating to the characterization of recombinant adeno-associated virus (rAAV) vector preparations. Sarepta filed IPR2026-00149, seeking...
by April Breyer Menon | Nov 26, 2025
On November 20, 2025, the FDA approved Accord’s Osvyrti® and Jubereq® (denosumab-desu), biosimilars of Amgen’s Prolia® / Xgeva® (denosumab). This is the eighth Prolia® / Xgeva® biosimilar approval, and follows Gedeon Richter / Hikma’s Enoby™ / Xtrenbo™...
by April Breyer Menon | Nov 22, 2025
On November 18, 2025, ToolGen, Inc. (“ToolGen”) filed a complaint (“Complaint”) in the District of Massachusetts alleging infringement of its U.S. Patent No. 12,473,559 (“the ’559 patent”) by Vertex Pharmaceuticals and related entities involved in the development and...
by April Breyer Menon | Nov 20, 2025
On November 17, 2025, Sandoz and Polpharma announced the U.S. launch of Tyruko® (natalizumab-sztn), the first and only FDA-approved biosimilar to Biogen’s Tysabri® (natalizumab) and the first biosimilar available to treat multiple sclerosis (MS) in the United States....
by April Breyer Menon | Nov 19, 2025
On November 6, 2025, Amgen filed its eighth and ninth BPCIA lawsuits against proposed biosimilars of Prolia® / Xgeva® (denosumab), Case No. 1:25-cv-17277 (D.N.J.) against Alvotech and Dr. Reddy’s AVT03 and Case No. 1:25-cv-17278 (D.N.J.) against Amneal,...