Seattle Genetics, Inc. Highlights Data Presentations From Genentech ADC Collaborator Programs at American Society of Hematology Annual Meeting

ATLANTA--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq:SGEN) today highlighted clinical data from two antibody-drug conjugate (ADC) programs in development by Genentech, a member of the Roche Group (SIX: RO, ROG; OTCQX: RHHBY) that utilize Seattle Genetics’ technology. The data were presented at the 54th American Society of Hematology (ASH) Annual Meeting and Exposition being held December 8-11, 2012 in Atlanta, GA. Phase I data from both ADCs, an anti-CD22 ADC (DCDT2980S, RG7593) and an anti-CD79b ADC (DCDS4501A, RG7596), demonstrated antitumor activity in relapsed or refractory B-cell non-Hodgkin lymphoma (NHL) patients at generally well-tolerated doses. These ADC programs are currently being evaluated in a phase II clinical trial for patients with relapsed or refractory B-cell NHL.