Aim: We aimed to assess the prognostic value of pretreatment hematological biomarkers in patients with metastatic renal cell carcinoma (mRCC) treated with immune checkpoint inhibitors (ICIs). Methods: PubMed, Web of Science and Scopus databases were searched for articles according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. Results: Fifteen studies comprising 1530 patients were eligible for meta-analysis. High levels of neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR), C-reactive protein and lactate dehydrogenase were significantly associated with worse progression-free survival. High NLR and PLR were significantly associated with worse overall survival. Conclusion: High pretreatment NLR and PLR appear to be hematological prognostic factors of progression and overall mortality in mRCC patients treated with ICIs. These findings might help in the design of correlative biomarker studies to guide the clinical decision-making in the immune checkpoint inhibitor era.
Identifying the predictive/prognostic factors that can be applied to daily clinical practice is mandatory to facilitate the use of immune checkpoint inhibitors. Some pretreatment hematological markers used in daily clinical practice appear to be prognostic factors in metastatic renal cell carcinoma patients treated with immune checkpoint inhibitors. We believe that the findings of the present meta-analysis might help researchers to design prospective correlative biomarker studies to guide clinical decision-making in the immunotherapy era.
Immunotherapy. 2022 Apr 25 [Epub ahead of print]
Takafumi Yanagisawa, Keiichiro Mori, Satoshi Katayama, Hadi Mostafaei, Fahad Quhal, Ekaterina Laukhtina, Pawel Rajwa, Reza S Motlagh, Abdulmajeed Aydh, Frederik König, Nico C Grossmann, Benjamin Pradere, Jun Miki, Manuela Schmidinger, Shin Egawa, Shahrokh F Shariat
Department of Urology, Comprehensive Cancer Center, Medical University of Vienna, Vienna, 1090, Austria., Department of Urology, The Jikei University School of Medicine, Tokyo105-8461, Japan., Department of Medicine I & Comprehensive Cancer Center, Clinical Division of Oncology, Medical University of Vienna, Vienna, 1090, Austria.