EXTON, Pa.--(BUSINESS WIRE)--Morphotek®, Inc., a subsidiary of Eisai Corporation of North America, and Pivotal BioSciences, Inc., a privately held Los Angeles-based biotechnology company developing oncology products, today announced they have entered into an agreement in which Morphotek will access Pivotal BioSciences’ LEC platform technology, developed by Dr. Alan Epstein, M.D., Ph.D, for the development of therapeutic monoclonal antibodies. The technology enhances the human immune system’s ability to produce an effective anti-tumor response.