Akcea Therapeutics Inc., a majority owned affiliate of Ionis Pharmaceuticals Inc., and Pfizer Inc. signed an exclusive, worldwide licensing deal for AKCEA-ANGPTL-3-LRx, which is being developed to treat cardiovascular and metabolic diseases. The deal follows a period during which Akcea's stock (NASDAQ:AKCA) has sagged prior to rising Monday and big changes in the company's C-suite.