AcelRx Pharmaceuticals, Inc. announced that David Chung has resigned as Chief Commercial Officer in order to assume the role of Chief Executive Officer of a medical device company. Richard King, the Company's President and Chief Executive Officer, will assume the duties and responsibilities of the Chief Commercial Officer, and will lead the continued build-out of the commercial organization and launch preparation for Zalviso until a suitable replacement is found. Mr. King has served as a director, president and chief executive officer for AcelRx since May 2010.