CAMBRIDGE, Mass.--(BUSINESS WIRE)--ARIAD Pharmaceuticals, Inc. (NASDAQ: ARIA) today announced that it has promoted Richard W. Pascoe to the new position of chief operating officer and has expanded the role of Timothy P. Clackson, Ph.D., ARIAD’s chief scientific officer, to include all of research, preclinical development, and applied sciences. Mr. Pascoe previously held the title of chief commercial officer. In his new role, Mr. Pascoe will assume responsibility for operating, new product- planning, manufacturing, marketing and sales, and business development activities and will continue to report to Harvey J. Berger, M.D., chairman and chief executive officer of ARIAD.