by April Breyer Menon | Dec 4, 2025
On December 2, 2025, Sarepta Therapeutics filed three petitions for inter partes review (“IPR”) challenging Genzyme’s patents relating to the characterization of recombinant adeno-associated virus (rAAV) vector preparations. Sarepta filed IPR2026-00166, seeking...
by April Breyer Menon | Dec 4, 2025
On December 2, 2025, the Federal Circuit issued two related decisions concerning Seagen’s U.S. Patent No. 10,808,039 (“the ’039 patent”), asserted against Daiichi Sankyo and AstraZeneca in litigation over the antibody–drug conjugate (ADC) Enhertu® (fam-trastuzumab...
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...