Onyx asserts right to Ph II drug against Bayer
The USA's Onyx Pharmaceuticals has filed a complaint in the US District Court for the Northern District of California asserting its rights to a Phase II-stage cancer drug candidate discovered during joint research with Germany's Bayer. In its complaint, Onyx seeks a declaration that fluoro-sorafenib is a jointly-owned collaboration compound under their long-standing agreement.
Onyx was recently advised that the compound is a variant of Nexavar (sorafenib) tablets and has the same chemical structure, except that a single fluorine atom has been substituted for a hydrogen atom. The new molecule had been identified in 1998 during the research collaboration period by the companies joint R&D teams. Discussions regarding Onyx' rights to fluoro-sorafenib under the companies' 1994 agreement were not productive.
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