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Review
Targeting PD-1 or PD-L1 in Metastatic Kidney Cancer: Combination Therapy in the First-Line Setting.
- David H Aggen, Charles G Drake, and Brian I Rini.
- Memorial Sloan Kettering Cancer Center, New York, New York. aggend@mskcc.org.
- Clin Cancer Res. 2020 May 1; 26 (9): 2087-2095.
AbstractRecent FDA approvals of regimens targeting programmed death 1 (PD-1) in combination with anti-CTLA-4 or with VEGF tyrosine kinase inhibitors are reshaping front-line therapy for metastatic kidney cancer. In parallel, therapeutics specific for programmed death ligand 1 (PD-L1), one of the two major ligands for PD-1, are under continued investigation. Surprisingly, not all PD-1 and PD-L1 agents lead to similar clinical outcomes, potentially due to biological differences in the cellular expression and regulation of these targets. Here, we review current clinical data on combination immune checkpoint inhibitor therapy in metastatic kidney cancer and discuss the relevant biology of PD-1 and PD-L1. The design of future rational combination therapy trials in metastatic renal cell carcinoma will rely upon an understanding of this biology, along with an evolving understanding of immune cell populations and their functional states in the tumor microenvironment.©2020 American Association for Cancer Research.
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