Efficacy and Safety of Fruquintinib in Combination With Sintilimab in Advanced Renal Cell Carcinoma (FRUSICA-2)

Inclusion Criteria: 1. 18 to 75 (inclusive) years of age on the date when ICF was signed; 2. Histologically or cytologically confirmed renal clear cell carcinoma; 3. Patients with locally advanced/metastatic renal carcinoma; 4. Patients with renal carcinoma who progressed during or after or intolerant to previous first-line VEGFR-TKI therapy for advanced/metastatic disease; 5. At least 1 measurable lesion according to RECIST 1.1; 6. ECOG PS of 0 or 1; 7. Adequate organ function. Exclusion Criteria: 1. Had previously received therapy targeting immune modulatory receptors or related pathways (including but not limited to therapy targeting PD-1, CTLA-4, IDO, PD-L1, LAG-3, TIGIT, IL-2R and GITR, etc, but excluding related cytokine therapy such as IL2), excluding patients who had received immunotherapy such as anti-PD- (L) 1 antibody in adjuvant/neoadjuvant therapy setting and did not progress within 6 months after discontinuation; 2. Receiving approved systemic anti-tumor therapy within 2 weeks prior to the first dose; 3. Toxicities caused by prior anti-tumor therapy before the first dose that did not recover to Grade 0 or 1 per the NCI CTCAE v5.0 or to the level specified in the enrollment criteria (excluding alopecia and peripheral neurotoxicity ≤ CTCAE Grade 2); 4. Immunosuppression medication within 4 weeks prior to randomization; 5. Patients with active autoimmune or inflammatory diseases; 6. Known central nervous system (CNS) metastasis; 7. History of pneumonitis requiring corticosteroid therapy, or history of or current interstitial lung disease, or current active pulmonary infection, etc.; 8. Toxicities caused by prior anti-tumor therapy before the first dose that did not recover to Grade 0 or 1 per the National Cancer Institute Common Terminology Criteria for Adverse events (NCI CTCAE) v5.0 or to the level specified in the enrollment criteria (excluding alopecia and peripheral neurotoxicities ≤CTCAE Grade 2 caused by platinum-based chemotherapy; thyroid dysfunction with stable disease control after symptomatic treatment); 9. Human Immunodeficiency Virus (HIV) Infection (HIV 1/2 Antibody positive); 10. Uncontrolled hypertension despite standard therapy; 11. Patient with evidence or history of haemorrhagic tendency within 2 months prior to the first dose, regardless of severity.