WOBURN, Mass.--(BUSINESS WIRE)--ArQule, Inc. (NASDAQ: ARQL) and Daiichi Sankyo Co., Ltd. (TSE 4568) today announced the expansion of their research, development and license agreement for the discovery of novel kinase inhibitors in the field of oncology. This expanded agreement establishes a third therapeutic target, with an option for a fourth, in the field of oncology, and it includes a two-year extension based on the application of the proprietary ArQule Kinase Inhibitor Platform (AKIP™) technology.