BOTHELL, Wash.--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq: SGEN) and Millennium: The Takeda Oncology Company today announced that data regarding retreatment experiences with brentuximab vedotin in phase I and phase II clinical trials will be presented during a poster session at the 2010 Annual Meeting of the American Society of Clinical Oncology (ASCO) being held June 4-8, 2010 in Chicago, Illinois. The presentation will highlight data from Hodgkin lymphoma and systemic anaplastic large cell lymphoma (ALCL) patients who have been retreated upon relapse after discontinuing previous brentuximab vedotin therapy.