Preoperative Therapy of Super-selective Tumor Artery Embolization Combined With Toripalimab and Axitinib in Advanced RCC

This is a phase II study to determine the efficacy and safety of Super-selective tumor artery embolization combined with toripalimab and axitinib as treatment for patients with the advanced kidney cancer . Further evaluate whether the treatment plan is beneficial to the patient's operation. Patients will undergo super-selective embolization of the feeding arteries to the renal tumour one week prior to drug therapy, followed by toripalimab administered every three weeks for three to four consecutive cycles combined with axitinib administered for four consecutive cycles in the preoperative and patients need to continue taking the drug for a year after surgery