A Phase 1, Multiple-Dose Study to Evaluate the Safety and Tolerability of XmAb819 in Subjects with Relapsed or Refractory Clear Cell Renal Cell Carcinoma

The purpose of this study is to assess the safety and tolerability of XmAb®819 administered intravenous (IV) or subcutaneous (SC) in subjects with relapsed or refractory clear cell renal cell carcinoma and to identify the minimum safe and biologically active dose and the recommended dose (RD).