The approval of belzutifan, an oral hypoxia-inducible factor-2 alpha inhibitor, provides a new option for patients with advanced renal cell carcinoma (RCC) following treatment with a programmed death receptor-1 (PD-1) or programmed death-ligand 1 (PD-L1) inhibitor and a vascular endothelial growth factor tyrosine kinase inhibitor (VEGF-TKI).