Akcea Therapeutics, Inc. announced that Damien McDevitt, Ph.D. Chief Business Officer of Ionis Pharmaceuticals, is joining the Akcea Board of Directors to replace Ionis Founder, Chairman and CEO Stanley T. Crooke, M.D., Ph.D. who has resigned from Akcea's Board of Directors. As Ionis’ CBO, Dr. McDevitt is responsible for leading Ionis’ corporate development activities, including business development, competitive intelligence, alliance management investor relations and corporate communications.