Clinical Study of Neoantigen Vaccine Combined With Targeted Drugs in the Treatment of Non-small Cell Lung Cancer

Inclusion Criteria: 1. Histologically confirmed locally advanced or metastatic non-small-cell lung cancer (stage III or stage IV). 2. With EGFR-TKI sensitive mutations and no T790M. 3. First generation EGFR-TKI treatment is in progress, the treatment time is 5-6 months and there is no disease progression. 4. Patients aged 18 to 85 5. Life expectancy of at least 3 months. 6. ECOG Performance Status 0 to 3. 7. No previous immunotherapy, including anti-PD-1/PD-L1 or co-suppressive T cell receptor drug therapy, peptide / mRNA neoantigen immunotherapy and cell therapy. 8. Ability to follow research and follow-up procedures. Able to understand and willing to sign an IRB approved written informed consent document. Exclusion Criteria: 1. Pregnant and/or breastfeeding. 2. With active, known or suspected autoimmune diseases or other concurrent immune system diseases. 3. Receive systemic cytotoxic chemotherapy or experimental drugs within 4 weeks before the start of neoantigen treatment, excluding EGFR-TKI and anti-angiogenesis targeted drugs. 4. Patients participated in other anticancer drug clinical trials within 4 weeks. 5. Liver and kidney dysfunction, severe heart disease, coagulation dysfunction, and impaired hematopoietic function. 6. Systemic infection. 7. Any uncertainties that have an impact on the safety or compliance of the patient. 8. Any disease, treatment, abnormal laboratory history or medical history that affects the participant's participation in the entire research process, or the investigator believes that it is not suitable to participate in this study.