Customized first-line chemotherapy according to ERCC1 and RRM1 SNPs in advanced NSCLC patients: A phase II study.

e18074 Background: Excision repair cross complementing group 1 (ERCC1) and ribonucleotide reductase1 (RRM1) expression levels are predictive of CT efficacy in some malignancies. “Customized” CT has several advantages: (1) pts are more likely to be treated with agents that they will respond to, (2) pts can be spared the toxicity of agents that they are resistant to, (3) effective treatment can be delivered early in the course of disease. Methods: We planned a phase II multicentric open label study in two steps (based on Simon design) to evaluate ERCC1 SNPs (T118C and C8092A) and RRM1 SNPs (-37C>A and -524T>C) in advanced NSCLC pts. Here we report the first step for futility. Pts received first line CT according to the assessed ERCC1 and RRM1 SNPs status and the correlated expression levels: treatment A (low ERCC1 and low RRM1) Cisplatin plus Gemcitabine; treatment B (low ERCC1 and high RRM1) Cisplatin plus Docetaxel; treatment C (high ERCC1 and low RRM1) Gemcitabine plus Docetaxel; treatment D (high ERCC1 ...