NEW YORK--(BUSINESS WIRE)--May 16, 2006--ImClone Systems Incorporated (NASDAQ: IMCL - News) announced today that it has named Elizabeth Yamashita Vice President, Regulatory CMC and Operations. As head of the Regulatory Affairs Chemistry/Manufacturing/Controls (CMC) and Operations groups, Ms. Yamashita will direct all CMC discussions with regulatory agencies and will ensure timely and accurate regulatory guidance and input to all project teams concerning CMC activities and dossier publishing and formatting matters. Ms. Yamashita will report directly to Cheryl Anderson, Vice President, Regulatory Affairs.