Genentech, Novartis Sue Amneal Over Bid To Sell Xolair Copy

By Rae Ann Varona ( October 20, 2026, 7:58 PM EDT) -- Genentech Inc. and Novartis Pharmaceuticals Corp. have filed a patent infringement suit in Delaware federal court, claiming Kashiv BioSciences' bid to sell a biosimilar copy of their prescription allergy drug Xolair amounts to patent infringement....

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