Long progression-free survival with cabozantinib in a heavily pretreated patient with metastatic renal cell carcinoma: a case report.

Renal cell carcinoma accounts for 3% of all tumors. Over the last decades, the prognosis of metastatic renal cell carcinoma (mRCC) has improved owing to the approval of several drugs such as tyrosine kinase inhibitors and immunotherapy. The median progression-free survival (PFS) does not exceed 8 months with the available drugs in pretreated patients with mRCC. We present a case of a patient with a long-term response to fourth-line treatment with cabozantinib. Our patient obtained a PFS of 33 months, which is much higher than that reported in literature.