BACKGROUND: The aim of this study was to perform a literature-based meta-analysis to assess the efficacy of the novel immune checkpoint inhibitors (ICIs) in first-line metastatic renal cell carcinoma (RCC), focusing on the predictive role of PD-L1 expression. METHODS: The primary outcome was overall survival, and secondary outcomes were progression-free survival (PFS) and objective response. We planned a subgroup analysis for overall survival according to PD-L1 status. RESULTS: Five studies were included in the analysis for a total of 4063 cases. Overall survival was greater in PD-L1 positive tumours (HR = 0.49, 95% CI: 0.36-0.67; p < 0.001). The pooled analysis of the unselected cases showed a statistically significative improvement in PFS with the use of ICIs (HR = 0.85, 95% CI: 0.72-0.99; p = 0.04) and we found a greater PFS benefit (HR = 0.65, 95% CI: 0.57-0.74; p < 0.001) in patients with PD-L1 positive tumours. CONCLUSIONS: This study supports the efficacy of ICIs and, although a significant clinical benefit has been reported in PD-L1 negative patients, a greater efficacy of ICIs was observed in PD-L1 positive patients. More prospective randomized studies are needed to clarify the role of PDL-1 status in metastatic RCC treated with ICIs.
Results from a meta-analysis of immune checkpoint inhibitors in first-line renal cancer patients: does PD-L1 matter? / Roviello G.; Corona S.P.; Nesi G.; Mini E.. - In: THERAPEUTIC ADVANCES IN MEDICAL ONCOLOGY. - ISSN 1758-8340. - ELETTRONICO. - 11:(2019), pp. 1-8. [10.1177/1758835919861905]
Results from a meta-analysis of immune checkpoint inhibitors in first-line renal cancer patients: does PD-L1 matter?
Roviello G.
;Nesi G.;Mini E.
2019
Abstract
BACKGROUND: The aim of this study was to perform a literature-based meta-analysis to assess the efficacy of the novel immune checkpoint inhibitors (ICIs) in first-line metastatic renal cell carcinoma (RCC), focusing on the predictive role of PD-L1 expression. METHODS: The primary outcome was overall survival, and secondary outcomes were progression-free survival (PFS) and objective response. We planned a subgroup analysis for overall survival according to PD-L1 status. RESULTS: Five studies were included in the analysis for a total of 4063 cases. Overall survival was greater in PD-L1 positive tumours (HR = 0.49, 95% CI: 0.36-0.67; p < 0.001). The pooled analysis of the unselected cases showed a statistically significative improvement in PFS with the use of ICIs (HR = 0.85, 95% CI: 0.72-0.99; p = 0.04) and we found a greater PFS benefit (HR = 0.65, 95% CI: 0.57-0.74; p < 0.001) in patients with PD-L1 positive tumours. CONCLUSIONS: This study supports the efficacy of ICIs and, although a significant clinical benefit has been reported in PD-L1 negative patients, a greater efficacy of ICIs was observed in PD-L1 positive patients. More prospective randomized studies are needed to clarify the role of PDL-1 status in metastatic RCC treated with ICIs.I documenti in FLORE sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.