SOUTH SAN FRANCISCO, CA--(Marketwire - December 05, 2008) - Cytokinetics, Incorporated (NASDAQ: CYTK) announced today that two abstracts, one summarizing interim clinical trial data evaluating ispinesib and another regarding preclinical data for ispinesib, are scheduled to be presented as poster presentations at the 31st Annual San Antonio Breast Cancer Symposium (SABCS) to be held December 10-14, 2008 at the Henry B. Gonzalez Convention Center, San Antonio, Texas. Ispinesib is a novel, small molecule inhibitor of kinesin spindle protein (KSP), a mitotic kinesin essential for proper cell division, being developed by Cytokinetics under a collaboration with GlaxoSmithKline.