The purpose of this study is to determine whether chemotherapy combination with local radiotherapy and recombined human granulocyte-macrophage colony stimulating factor(rhGM-CSF) is safe, effective in the treatment of oligometastatic stage IV NSCLC patients who were PR or SD after first-line chemotherapy，and to observe the abscopal effect, whether the scheme can improve PFS and OS.
The purpose of this study is to determine whether chemotherapy combination with local radiotherapy and rhGM-CSF is safe, effective in the treatment of oligometastatic stage IV NSCLC patients.