Dual immune check point blockade or immune check point-tyrosine kinase inhibitor combination: as a first-line treatment in metastatic renal cell carcinoma?

To discuss treatment decisions in the first-line setting of metastatic renal cell carcinoma (mRCC).

Immune check point inhibitor (ICI) combinations have replaced sunitinib as the standard of care in the first-line treatment of mRCC. Dual ICI treatment with nivolumab and ipilimumab was shown to significantly improve overall survival and objective response rates. Similarly, the ICI-tyrosine kinase inhibitor combinations pembrolizumab and axitinib and nivolumab and cabozantinib have demonstrated superiority in terms of overall survival, objective response rates and progression-free survival versus sunitinib. The lack of both comparative trials and predictive markers impedes individualized treatment decisions. Clinicians are left to make treatment choices based on clinical and biological factors. These factors may include differences in toxicity profiles, the rate of complete remission, a clinical situation that requires urgent tumor shrinkage, the presence of inflammation, histological or immune-histochemical features and others.

In the absence of comparative trials, clinical and biological factors may facilitate the choice between various treatment options in the first-line setting of mRCC. In addition, both the experience of the physician with a specific treatment together with patient's preferences and expectations of systemic therapy may be part of the decision-making process.

Current opinion in urology. 2021 Mar 11 [Epub ahead of print]

Manuela Schmidinger, Irene Resch, Harun Fajkovic, Mesut Remzi, Shahrokh F Shariat, Jens Bedke

Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, Austria Department of Urology, Weill Cornell Medical College, New York, New York Department of Urology, University of Texas Southwestern, Dallas, Texas, USA Department of Urology, Second Faculty of Medicine, Charles University, Prague, Czech Republic Institute for Urology and Reproductive Health, I.M. Sechenov First Moscow State Medical University, Moscow, Russia Division of Urology, Department of Special Surgery Jordan University Hospital, The University of Jordan, Amman, Jordan Department of Urology, University of Tuebingen, Tuebingen, Germany.