WOBURN, Mass.--(BUSINESS WIRE)--Aug. 1, 2006--ArQule, Inc. (Nasdaq: ARQL) today announced the appointment of Dr. Nigel J. Rulewski as chief medical officer. Dr. Rulewski was previously senior vice president of BioAccelerate Holding Inc., a pharmaceutical development organization. He brings to ArQule more than two decades of experience in clinical research, product development, regulatory affairs, commercialization, corporate planning and licensing activities.