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Article Abstract
Background: Endothelial activation and insult may contribute to the aggressive clinical course of small-cell lung cancer (SCLC); however, no predictive biomarker for this pathogenesis has been identified.
Objective: To evaluate the clinical impact of the endothelial activation and stress index (EASIX) in SCLC.
Methods: In this retrospective study, the EASIX was calculated from measurements of serum lactate dehydrogenase, creatinine, and platelet levels. A total of 264 patients with SCLC treated with platinum-based chemotherapy were stratified into high and low EASIX groups.
Results: Complete and objective response rates in the limited-stage (LD) were 19.5% vs. 33.3% (P= 0.050) and 85.4% vs. 97.9% (P= 0.028) in the high and low EASIX groups, respectively. There was no significant difference in the response rate between the two groups in the extensive-stage (ED). The median overall survival was 9.8 vs. 40.5 months in LD (P< 0.001) and 7.2 vs. 11.9 months in ED (P< 0.001) in the high and low EASIX groups, respectively. In multivariate analyses, a high EASIX level was an independent prognostic factor for worse progression-free and overall survival irrespective of stage.
Conclusion: EASIX may be a potential predictive biomarker of SCLC.
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| http://dx.doi.org/10.3233/CBM-220032 | DOI Listing |
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