KRAS mutations as predictive biomarker in patients with EGFR wild-type stage IV nonsquamous non-small cell lung cancer (NSCLC) recruited in a phase II clinical study with carboplatin-docetaxel-bevacizumab.
2012
e18069 Background: KRAS mutation are harbored in ~30% of NSCLC patients, and have been described associated with an upregulation of genes involved in angiogenesis, including vascular endothelial growth factor/vascular permeability factor (VEGF/VPF). Bevacizumab (BVZ) is a recombinant monoclonal humanized antibody targeted against VEGF and added to carboplatin-paclitaxel chemotherapy has demonstrated to improve outcome in non-squamous NSCLC. The objectives of this study were to analyze the impact of KRAS mutations in response rate (RR) and time to progression (TTP) in a cohort of patients homogeneously treated with BVZ in combination with carboplatin-docetaxel. Methods: Patients treated with up to 6 cycles of carboplatin (AUC 5), docetaxel (75 mg/m2) and BVZ (7.5 mg/kg) on day 1, every 21 days. Patients with RR or stable disease continued maintenance BVZ (7.5 mg/kg) every 21 days until disease progression. KRAS mutations at codons 12, 13 and 61 were analyzed by COBAS KRAS Mutation Test (Roche) from DNA pur...
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