%0 Journal Article %T Pemetrexed had significantly better clinical efficacy in patients with stage IV lung adenocarcinoma with susceptible EGFR mutations receiving platinum-based chemotherapy after developing resistance to the first-line gefitinib treatment %A Chih-Jen Yang %A Inn-Wen Chong %A Jen-Yu Hung %A Jui-Sheng Hsu %A Jui-Ying Lee %A Ming-Ju Tsai %A Ming-Shyan Huang %A Shah-Hwa Chou %A Ta-Chih Liu %A Ying-Ming Tsai %J Archive of "OncoTargets and therapy". %D 2016 %R 10.2147/OTT.S100164 %X Increased evidences show that epidermal growth factor receptor (EGFR)-tyrosine kinase inhibitors such as gefitinib could prolong progression-free survival (PFS) compared with cytotoxic chemotherapy for metastatic lung nonsquamous cell carcinoma harboring susceptible EGFR mutation, and gefitinib was served as the first-line therapy. However, acquired resistance is inevitable, but the salvage therapies are still unclear %K epidermal growth factor receptor %K gefitinib %K acquired resistance %K pemetrexed %K chemotherapy %U https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4803239/