EGFR and non-small cell lung carcinoma: Moreover, in a study by Yang et al., with 85 patients in the icotinib group and 91 patients in the WBRT group, the median iPFS of NSCLC patients with EGFR mutation and BM were 4.8 months and 10.0 months (P < 0.05), while the median OS were 20.5 months and 18.0 months (P > 0.05).