SOUTH SAN FRANCISCO, Calif.--(BUSINESS WIRE)--Genentech, Inc. (NYSE:DNA) today announced results from studies of several investigational agents targeting the biological cancer pathways of HER (human epidermal growth factor receptor) signaling, Hedgehog signaling and apoptosis (programmed cell death). These data will be presented during the 44th Annual Meeting of the American Society of Clinical Oncology (ASCO) taking place May 30 to June 3 in Chicago. Results will be presented from a Phase II study of pertuzumab in HER2-positive metastatic breast cancer and Phase I studies of trastuzumab-DM1 (T-DM1), an investigational HER2 antibody-drug conjugate; GDC-0449, a small molecule antagonist of the Hedgehog pathway; and two novel agents designed to trigger apoptosis, ABT-263 and Apo2L/TRAIL.