Study the efficacy and toxicity of SABR treatment for oligometastatic/oligoprogressive renal cell carcinoma; investigate the effectiveness and safety of SABR combined with targeted immunotherapy; conduct stratified analysis to identify the optimal beneficiary population; establish a biobank to screen for biomarkers; and use radiomics analysis to identify characteristics of sensitive populations.
1: Patients with newly diagnosed M1 renal cancer or those with oligoprogression during systemic therapy, with no restrictions on the location or number of metastatic sites, but all metastatic sites must be evaluated by the radiation oncology department as safely able to receive a radical radiation dose (α/β value of 3, EQD2 ≥ 70Gy).
1: Patients with other comorbidities that prevent the use or tolerance of targeted immunotherapy drugs, such as targeted immunotherapy drug allergies, active bleeding, ulcers, intestinal perforation, intestinal obstruction, uncontrolled hypertension, grade III-IV cardiac dysfunction (NYHA criteria), severe hepatic and renal insufficiency (grade IV), etc.