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  • Title: Carboplatin plus pemetrexed for platinum-pretreated, advanced non-small cell lung cancer: a retrospective study with pharmacogenetic evaluation.
    Author: Metro G, Chiari R, Mare M, Giannarelli D, Tofanetti FR, Minotti V, Ferraldeschi M, Giuffrida D, Marcomigni L, Bennati C, Fischer MJ, Meacci M, Bellavita R, Pistola L, Ludovini V, Crinò L.
    Journal: Cancer Chemother Pharmacol; 2011 Dec; 68(6):1405-12. PubMed ID: 21468755.
    Abstract:
    PURPOSE: In the present study, the combination of carboplatin (CBDCA) plus pemetrexed (PMX) for the treatment of patients with platinum-pretreated, pemetrexed-naïve, advanced non-small cell lung cancer (NSCLC) was investigated. Also, single nucleotide polymorphisms (SNPs) at the XRCC3, XPD, ERCC1, GARFT, DHFR, and TS genes were investigated. METHODS: Eighty patients treated with CBDCA/PMX at two Italian institutions were evaluable. Of these, 73 patients had blood samples collected for pharmacogenetic evaluation. RESULTS: Overall, the median age was 59 years (26-78), 59 patients (73.7%) had a performance status of 0, and 34 patients (42.5%) had stage IIIB disease. Thirty-eight patients (47.5%) had responded to prior first-line platinum-based therapy. Study treatment resulted into one complete and 33 partial responses for an overall response rate of 42.5%. The disease control rate was 77.5%. The median progression-free survival (PFS) and overall survival (OS) were 5.8 and 17.4 months, respectively. Responders achieved a significant longer PFS and OS versus non-responders (P = 0.007 and P = 0.003, respectively). The only grade 3-4 adverse event occurring in more than 5.0% of patients was neutropenia (6 patients, 7.5%). No statistically significant association was noted between polymorphisms of the genes analyzed and clinical outcome. CONCLUSIONS: In patients with platinum-pretreated, advanced NSCLC and favorable clinical prognostic factors, treatment with CBDCA/PMX is associated with a good clinical outcome and toxicity profile. None of the SNPs analyzed was found to be a useful predictor of treatment efficacy.
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