diaDexus, Inc. announced the appointment of Leone Patterson as chief financial officer. Ms. Patterson has 20 years of experience in finance and accounting. Before joining diaDexus, she was vice president and chief financial officer at Transcept Pharmaceuticals Inc. from June 2012 until it was acquired in a reverse merger with Paratek Pharmaceuticals on October 30, 2014.

Most recently, she was the chief financial officer at Transcept.