Comparator-Controlled Study for EGFR(+) Patients With Multiple BMs From NSCLC (BROKE) (EGFR-epidermal Growth Factor Receptor;BM-brain Metastases)

All patients will be randomized to receive gefitinib or gefitinib concurrent WBRT until progression of disease. Gefitinib concurrent WBRT, patients were given gefitinib 250mg per day concurrently with WBRT(whole-brain radiotherapy ). Dose reduction was allowed for intolerable adverse effects such as rash(grade 4)、diarrhea(grade 3-4) or non hematological toxicity(grade 3-4) from 250mg per day to 250mg every other day then to 250mg every three days if needed. WBRT was delivered in 3.0 Gy(Gray)fractions once per day 5 days per week to a total dose of 30Gy (10 fractions). Radiation was delivered as opposed lateral 6-MV(Micro Voltage) beams with Varian linear accelerator.