- Patients with histologically or cytologically confirmed metastatic clear cell RCC who are eligible for cytoreductive nephrectomy as agreed upon by Medical Oncology and Urology team members; patients with metastatic disease eligible for cytoreductive nephrectomy should have the following characteristics: resectable primary tumor (no gross adjacent organ invasion, no or minimal abdominal lymphadenopathy, no or minimal inferior vena caval involvement), bulk of metastatic disease within the primary tumor, absence of multiple liver metastases, no more than 2 organ sites involved with metastases