NEW YORK--(BUSINESS WIRE)--ImClone Systems Incorporated (NASDAQ: IMCL), a global leader in the development and commercialization of novel antibodies to treat cancer, today announced that Michael P. Bailey has resigned his position as Senior Vice President, Commercial Operations, effective August 1, 2008. Mr. Bailey has resigned to accept a senior level commercial position with Synta Pharmaceuticals Corp., a New England-based biopharmaceutical company.