Genzyme Sues Over Synthetic Vitamin D Patents

Law360, New York (February 25, 2008, 12:00 AM EST) -- Biotechnology company Genzyme Corp. has sued Pentech Pharmaceuticals Inc. to prevent it from marketing a generic version of Hectorol, a synthetic form of Vitamin D used to treat secondary hyperparathyroidism in patients with chronic kidney disease.

In a complaint filed Thursday with the U.S. District Court for the Northern District of Illinois, Cambridge, Mass.-based Genzyme and its subsidiary Bone Care International LLC accused Pentech of patent infringement.

According to the complaint, Pentech infringed two of Genzyme's patents by filing an abbreviated new drug application for doxercalciferol,...
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