Phase 1b/2 Study of Combination 177Lu Girentuximab Plus Cabozantinib and Nivolumab in Treatment naïve Patients With Advanced Clear Cell RCC

Primary Objectives: * To determine safety of combination 177Lu girentuximab in combination with nivolumab plus cabozantinib in subjects with previously untreated ccRCC. * To evaluate CR rate in the combination of 177Lu girentuximab with nivolumab plus cabozantinib in subjects with previously untreated ccRCC. 2. CR rate by RECIST 1.1 by investigator Secondary Objectives: * To evaluate ORR of 177Lu girentuximab in combination with nivolumab plus cabozantinib in subjects with previously untreated ccRCC. * To evaluate PFS of 177Lu girentuximab in combination with nivolumab plus cabozantinib in subjects with previously untreated ccRCC.