There is no standard treatment in patients with renal cell carcinoma that was previously treated with VEGF targeted therapies and mTOR inhibitors.So investigators conducted a randomized, open-label, multi-center phase II study to compare bevacizumab plus sorafenib versus sorafenib for the third-line treatment of patients with Metastatic renal cell carcinoma.

Therapies targeting VEGF and mTOR signalling pathways represent standard first-line and second-line treatment options for patients with metastatic renal cell carcinoma. There is no standard treatment in patients with renal cell carcinoma that was previously treated with VEGF targeted therapies and mTOR inhibitors.To the best of the investigators knowledge, GOLD study is the first phase 3 trial in the third-line setting after both VEGF-inhibitor and mTOR-inhibitor drugs.From this study,Sorafenib may be option for the third-line treatment.The Best trial demonstrated that Bevacizumab/sorafenib had best efficacy in advance renal cancer canrcinoma and the VEGF/VEGFR co-inhibition strategy may warrant further investigation possibly with more selective VEGFR inhibitors.So investigators conducted a randomized, open-label, multi-center phase II study to compare bevacizumab plus sorafenib versus sorafenib for the third-line treatment of patients with Metastatic renal cell carcinoma.

Inclusion Criteria:

• Age≥18 years, ≤75 years, male or female

• Advanced renal cellcarcinoma is diagnosed histologically or pathologically

  • 1st line treatment of Sunitinib and 2nd line treatment of Everolimus and no more systemic anti-angiogenesis targeted drug therapy
  • Have at least one measurable tumor lesion (Response Evaluation Criteria In Solid Tumors)
  • Eastern Cooperative Oncology Group（ECOG) performance scale is 0 or 1
  • The expected life span is ≥12 weeks
  • No contraindications for chemotherapy, with enough liver function and renal function and normal ECG recording Peripheral hemogram: neutrophil≥1.5×109/L, Plt≥100×109/L, Hgb≥90g/L Renal function: serum creatinine≤1.5 folds the upper limit of normal (ULN) For patients with non-metastatic liver dysfunction:alanine aminotransferase and aspartate aminotransferase≤2.5 ULN, For patients with metastatic liver dysfunction: alanine aminotransferase and aspartate aminotransferase≤5 ULN
  • The patients participate voluntarily and have signed the informed consent form

Exclusion Criteria:

• Pregnant and lactating women, or female patients of child-bearing age without taking contraceptive measures

  • Patients with severe acute infection without being controlled effectively or having pyogenic and chronic infections with persistently unhealed wounds
  • Past history of serious heart diseases, including: cardiac function classification ≥NYHA class II, unstable angina pectoris, myocardial infarction, arrhythmia requiring anti-arrhythmic drug therapy (excluding β-blockers or digoxin), and uncontrolled hypertension
  • Patients with a history of HIV infection or active phase of chronic hepatitis B/C
  • negative imaging examination result 4 weeks prior to enrollment)
  • Epilepsy patients requiring drug therapy (e.g. steroids or antiepileptic drugs)
  • A history of allogeneic organ transplantation
  • Patients with evidence of hemorrhagic constitution or a past history of hemorrhage
  • Patients currently receiving renal dialysis
  • Past or present concomitant tumors with the primary lesions or histological characteristics different from the tumors evaluated in this study, excluding other tumor cured longer than 3 years before enrollment
  • Patients participating in other clinical trials simultaneously
  • Other conditions unsatisfying the inclusion criteria in the investigator's opinions