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Daniel Y.C. Heng

Jose Manuel Ruiz-Morales

Marini M.

Narayan V.

 The treatment of metastatic renal cell carcinoma (mRCC) is rapidly changing. During first-line treatment with targeted therapy, patients ultimately develop resistance to therapy and the disease progresses. Recently, cabozantinib has demonstrated a better response rate, progression-free survival and overall survival compared with everolimus after failure of prior targeted therapy in patients with advanced or metastatic renal cell carcinoma (RCC). Cabozantinib is a small-molecule tyrosine kinase inhibitor (TKI). It exerts inhibition of MET, vascular endothelial growth factor receptor type 2, AXL, and many other receptor tyrosine kinases that are also implicated in tumor pathobiology, including RET, KIT, and FLT3. MET drives tumor survival, invasion, angiogenesis, and metastasis through several downstream signaling pathways. AXL has recently been described as an essential mediator of cancer metastasis that mediates crosstalk and resistance to TKIs. MET and AXL are thought to be anti-vascular endothelial growth factor receptor (VEGF) resistance pathways and thus cabozantinib represents a logical choice after progression on initial VEGF therapy. Subgroup analyses examining those with good performance status or visceral and bone metastases indicate that the hazard ratios may be better when using cabozantinib versus everolimus. However, there were no clear statistically significant differences between any subgroups. </jats:p

Cabozantinib in the treatment of advanced renal cell carcinoma: clinical trial evidence and experience

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