diaDexus, Inc. announced the appointment of Lori F. Rafield, Ph.D. as chief executive officer of the Company on a permanent basis, effective immediately. Dr. Rafield has continued to serve as chairman since 2010. She assumed the responsibility of interim executive chair in June 2014 and then was appointed interim chief executive officer in January 2015.

Dr. Rafield has 25 years of experience leading, advising, and investing in companies in the life sciences industry. For the last 10 years, Dr. Rafield has served as a consultant to both the biotechnology and device industries working with entrepreneurs to create and finance companies with both institutional investor and strategic partners. She has been involved in creating business plans for new opportunities, restructuring existing companies as well as corporate partnering efforts.