Is There a Role for Neoadjuvant Targeted Therapy to Downsize Primary Tumors for Organ Sparing Strategies in Renal Cell Carcinoma

With an increasing number of small renal masses being diagnosed organ-preserving treatment strategies such as nephron-sparing surgery (NSS) or radiofrequency and cryoablation are gaining importance. There is evidence that preserving renal function reduces the risk of death of any cause, cardiovascular events, and hospitalization. Some patients have unfavourable tumor locations or large tumors unsuitable for NSS or ablation which is a clinical problem especially in those with imperative indications to preserve renal function. These patients may benefit from downsizing primary tumors by targeted therapy. This paper provides an overview of the current evidence, safety, controversies, and ongoing trials.