CHICAGO--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq:SGEN) today announced that data from several clinical trials of ADCETRIS (brentuximab vedotin) will be presented at the 2012 American Society of Clinical Oncology (ASCO) Annual Meeting being held June 1-5, 2012 in Chicago, IL. Data demonstrate the activity and tolerability when patients are retreated with ADCETRIS, the activity and tolerability of ADCETRIS in CD30-positive non-Hodgkin lymphomas and CD30 expression from a screening protocol in non-lymphoma malignancies. ADCETRIS is an antibody-drug conjugate (ADC) directed to CD30.