BOTHELL, Wash.--(BUSINESS WIRE)--Seattle Genetics, Inc. (Nasdaq: SGEN) today announced that it has initiated a phase I clinical trial of SGN-75 for metastatic renal cell carcinoma and relapsed and refractory non-Hodgkin lymphoma. SGN-75 is an antibody-drug conjugate (ADC) targeting CD70 that utilizes the company’s proprietary technology.