 - Chemotherapy, immunotherapy and other systemic anti-cancer treatment such as EGFR inhibitor including other EGFR tyrosine kinase inhibitor and EGFR antibody, and anti-vascular therapy including vascular epithelial growth factor receptor inhibitor and Endostar naïve. Radical surgery and radiotherapy must be completed at least 6 months before start of study treatment. Adjuvant chemotherapy is allowed and must be finished at least 6months before start of study drug. Palliative radiotherapy must be completed at least 2 weeks before start of study treatment with no persistent radiation toxicity. 