| abstract |
A method for predicting sensitivity to an EGFR inhibitor includes: (a) determining whether there is a KRAS gene-derived nucleic acid or a protein thereof in a blood sample which has been collected from a subject, and whether the KRAS gene-derived nucleic acid or the protein thereof in the blood sample is wild type or mutant; and (b) determining that there is a high possibility that a tumor of the subject is sensitive to an EGFR inhibitor when a wild type KRAS gene-derived nucleic acid or a protein thereof is detected and no mutant KRAS gene-derived nucleic acid or a protein thereof is detected in the blood sample in the process (a). |