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Eisai Co., Ltd.

Drug Names(s): E7300

Description: ZYC300 is an encapsulated plasmid that contains the tumor antigen cytochrome P450 1B1 (CYP1B1). ZYC300 stimulates the body's T cells to attack cells that express CYP1B1. CYP1B1 is a tumor-specific protein that is found expressed in nearly every major cancer but significantly limited in normal tissue.

Deal Structure: ZYC300 was originally developed by MGI Pharma.

In December 2007, Eisai and MGI Pharma announced that they entered into a definitive merger agreement under which Eisai would acquire all of the outstanding shares of MGI Pharma for US$41.00 per share in an all cash transaction, for a total consideration of approximately $3.9 billion.

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