| OTC Markets: DDXS
diaDexus, Inc. develops and commercializes patent-protected in vitro diagnostic products which are used in treating cardiovascular and related diseases. Its products include PLAC Tests and PLAC Test for Lp-PLA2 Activity. The company's products, PLAC Tests, are designed to provide information, over and above traditional risk factors, to help identify individuals at increased risk of suffering a heart attack or stroke. The PLAC Test for Lp-PLA2 Activity, is an enzyme assay for the quantitative determination of Lp-PLA2 activity levels in human plasma and serum on automated clinical chemistry analyzers, to be used in conjunction with clinical evaluation and patient risk assessment as an indicator of atherosclerotic cardiovascular disease. diaDexus was founded on November 27, 1995 and is headquartered in South San Francisco, CA.