Federal Circuit Upholds Pfizer Patent, Blocks Generic Xalatan

Law360, New York (August 14, 2005, 12:00 AM EDT) -- Pfizer Inc.’s glaucoma drug Xalatan is off limits to generics manufacturer Par Pharmaceutical Inc., following a decision in Pfizer’s favor by the U.S. Court of Appeals for the Federal Circuit.

The initial complaint was filed in December 2001 in the U.S. District Court for New Jersey after Par announced its plans to create a generic version of Xalatan.

Par’s abbreviated new drug application (ANDA) with the U.S. Food and Drug Administration (FDA) claimed two key patents behind Xalatan invalid, alleging inequitable conduct during the patent application...
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