Pooled Analysis of the Prognostic and Predictive Value of KRAS Mutation Status and Mutation Subtype in Patients with Non–Small Cell Lung Cancer Treated with Epidermal Growth Factor Receptor Tyrosine Kinase Inhibitors

OBJECTIVES: This pooled analysis of four trials of epidermal growth factor receptor tyrosine kinase inhibitors (EGFR TKIs) versus placebo was conducted to clarify the prognostic and predictive roles of Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations (MUTs) and to explore the importance of MUT subtype. METHODS: Data were pooled from four trials of EGFR TKIs versus placebo (National Cancer Institute of Canada Clinical Trials Group …