RecruitingPhase 2Drug trialAxitinib Intensification Plus Nivolumab or Nivolumab Alone After Nivolumab Plus Ipilimumab in mRCC PatientsThis phase II open label trial randomized patients who completed the induction with nivolumab plus ipilimumab without complete response or progressive disease will be randomized 1:1 to receive axitinib in addition to nivolumab (Arm A) or continue with nivolumab alone (Arm B).Treatment will be continued until progression of disease, unacceptable toxicity, patient's refusal, or physician decision whichever occurred first.