Autologous dendritic cell-adenovirus CCL21 vaccine(Jonsson Comprehensive Cancer Center)

This phase I trial studies the side effects and best dose of autologous dendritic cell-adenovirus CCL21 vaccine (CCL21-gene modified dendritic cell vaccine) combined with intravenous pembrolizumab, and to see how well they work in treating patients with stage IV non-small cell lung cancer. Vaccines made from a gene-modified virus may help the body build an effective immune response to kill tumor cells. Monoclonal antibodies, such as pembrolizumab, may interfere with the ability of tumor cells to grow and spread. Giving CCL21-gene modified dendritic cell vaccine with pembrolizumab may work better in treating patients with stage IV non-small cell lung cancer.