Immunotherapy Clearance and Phenotype of Circulating Tumor Cells in Lung and Head and Neck Cancers

"Blood draws will be realized at the following time points:~C1T1: at the baseline, before treatment administration. C1T2: cycle 1, after treatment administration. C2T1: the day of the 2nd cycle, before treatment administration. C2T2: the day of 2nd cycle, after treatment administration. C3T1: the day of the 3rd cycle, before treatment administration. C3T2: the day of 3rd cycle, after treatment administration."