BOTHELL, Wash.--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq:SGEN) announced today that it has initiated a second phase I clinical trial of SGN-35 in patients with Hodgkin lymphoma and other CD30-positive hematologic malignancies. SGN-35 is an antibody-drug conjugate (ADC) that utilizes Seattle Genetics’ proprietary technology to empower antibodies by linking them to potent cell-killing drugs.