The main secondary objective is to determine safety and tolerability, according to NCI Common Terminology Criteria for Adverse Events (CTCAE v4.03) and to the obtained data on vital signs, clinical parameters (oxygen saturation) and feasibility of the regimen. Further secondary objectives are to determine the efficacy of the experimental regimen in terms of objective response rate (acc. to RECIST v1.1 and irRECIST), and overall survival, to correlate clonal dynamics (RAS/EGFR subclones) with immune response signature to determine control of mutant subclones by the combination of anti-Epidermal growth factor receptor (EGFR) with anti-PD-L1and PD-L1 staining (and MSI status) with efficacy.