Abstract 139P
Background
We retrospectively investigated the prognostic value of pre-treatment advanced lung cancer inflammation index (ALI) in locally advanced pancreatic carcinoma (LAPC) patients who underwent concurrent chemoradiotherapy (CCRT).
Methods
Present retrospective cohort analysis incorporated consecutive 141 LAPC patients who received radical CCRT. Accessibility of baseline ALI cutoff(s) impacting survival outcomes was sought by receiver operating characteristic (ROC) curve analysis. Interaction between the ALI and overall- (OS) and while progression-free survival (PFS) constituted our primary and secondary end points, respectively.
Results
At a median follow-up of 14.4 months (range: 3.2-74.2), the median PFS and OS were 7.5 (%95 CI: 5.9-9.1) and 14.6 months (%95 CI: 11.6-17.6), respectively. ROC curve analyses set the ideal ALI cutoff value at 25.3 (AUC: 75.6; sensitivity: 72.7%; specificity: 70.3%) that exhibited a significant association with both the OS and PFS results. Patient stratification into two groups per ALI [≤25.3 (N = 75) versus >25.3 (N = 66)] showed that the ALI>25.3 group had a significantly superior median OS (25.8 versus 11.4 months; P < 0.001) and PFS (15.9 versus 6.0 months; P < 0.001) than its ALI≤25.3 counterpart. Other factors exhibiting significantly better OS and PFS rates were N0(versus N1) stage (P < 0.05 for each endpoint) and CA 19-9 ≤90 U/mL (versus >90 U/mL), respectively (P < 0.05 for each end point). These three factors were also affirmed to be independent indicators of longer OS and PFS (P < 0.05 for each) in multivariate analyses.
Conclusions
Results of this hypothesis-generating research proposed the pre-CCRT ALI as a novel robust associate of OS and PFS outcomes for LAPC patients undergoing CCRT.
Clinical trial identification
Editorial acknowledgement
Legal entity responsible for the study
The authors.
Funding
Has not received any funding.
Disclosure
All authors have declared no conflicts of interest.
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