Targeted therapy in renal carcinoma: a case of long-term effect with complete control of toxicity

Although advances in imaging techniques have allowed earlier diagnosis of renal cell carcinoma (RCC) in recent decades, one-third of patients who have undergone radical resection of organ-confined disease will eventually develop metastases. The treatment of metastatic RCC was revolutionized by the advent of targeted therapy with tyrosine kinase inhibitors. We have followed seven patients with metastatic RCC who were treated with first-line pazopanib at our center. The case of one of these patients is described here in detail. The patient was first diagnosed with RCC in 1999 and metastases were detected in 2006 and 2012. Treatment with pazopanib at the standard dose of 800 mg/day for 29 months led to a partial response that persisted over time. Side effects (hypertension and painful mucositis) were successfully managed with supportive care at our oral therapy clinic. Early management of adverse events using a multidisciplinary approach is paramount to the favorable outcome of treatment with pazopanib and other targeted agents.