Journal
INTERNATIONAL IMMUNOPHARMACOLOGY
Volume 124, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.intimp.2023.110937
Keywords
Lung cancer; C-reactive protein; Immune checkpoint inhibitors; Survival; Meta -analysis
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This study conducted a meta-analysis to explore the prognostic value of pretreatment CRP level in NSCLC patients treated with immune checkpoint inhibitors. The results showed that higher CRP levels were associated with worse overall survival and progression-free survival.
Background: Current evidence suggests that C-reactive protein (CRP) levels may affect cancer prognosis. How-ever, the effect of CRP has not been validated in immunotherapy recipients with non-small cell lung cancer (NSCLC). Therefore, we performed a meta-analysis to explore the prognostic value of CRP level in patients with NSCLC treated with immune checkpoint inhibitors.Methods: PubMed, Web of Science, Embase, and Scopus databases were systematically retrieved for eligible publications, and hazard ratios (HRs) with corresponding 95% confidence intervals (95%CIs) were extracted and merged to evaluate the correlation between pretreatment CRP levels and overall survival (OS) and progression-free survival (PFS). Subgroup and sensitivity analyses were conducted to confirm these findings.Results: Thirty-five cohorts consisting of 4698 patients were included in the primary analysis. Pooled results demonstrated that a higher pretreatment CRP level is associated with worse OS and PFS (OS: HR = 1.13, 95 % CI:1.09-1.18; PFS: HR = 1.16, 95 %CI:1.10-1.22). These findings remained robust after further statistical analyses. Conclusion: Pretreatment CRP level could be a promising biomarker for NSCLC immunotherapy. However, prospective studies are required to validate these findings.
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