Single nucleotide polymorphisms (SNPs) of the platinum pharmacogenetic and VEGF pathways: Association with survival of platinum-treated stage IV non-small cell lung cancer (NSCLC) patients.
2017
7586 Background: Two potentially important host pathways in lung cancer systemic therapy are: (i) the pharmacogenetic pathway of platinum agents (DNA repair, metabolism, and multidrug resistance genes); and (ii) the vascular endothelial growth factor (VEGF) pathway. We investigated the relationship between SNPs in these two pathways and clinical outcome in platinum-treated NSCLC patients. Methods: 188 platinum-treated Stage IV NSCLC patients underwent SNP genotyping for the platinum-related (48 SNPs in 7 genes) and VEGF (64 SNPs in 3 genes) pathways. SNPs were selected from the literature and through tagging. Association of SNPs and overall (OS) and progression free survival (PFS) were assessed using multivariate Cox proportional hazards models. Results: 72% were Caucasian; 73%, adenocarcinoma; 92%, ECOG PS 0-1; median age, 60 years; 54% received > one line of systemic therapy; 10% received anti-VEGF therapy/placebo; Median OS, 1.3 yrs; median follow up, 2.2 yrs. The top significant SNPs in the platinum-r...
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