Trial of Therapeutic Cancer Vaccine OSE2101 in Patients With Non-Small Cell Lung Cancer and Secondary Resistance to Immune Checkpoint Inhibitor

Inclusion Criteria: 1. Male or female, aged ≥ 18 years 2. Patients expressing HLA-A2 phenotype in blood by pre-screening central laboratory 3. Patients with histologically or cytologically squamous or non-squamous documented NSCLC, metastatic stage at study entry, not eligible for definite surgery or radiation, without EGFR, ALK and ROS1 gene alterations eligible for targeted therapy; for patients with squamous NSCLC, the molecular tests are not mandatory if age ≥ 50 years old and smoker ≥ 15 pack years; other sensitizing mutations known to be immunosensitive are eligible in case of lack of local access to targeted therapy (i.e.; KRAS G12C and BRAF mutations) after Sponsor' agreement. 4. Patients with secondary resistance to ICI; Other inclusion and exclusion criteria will apply per protocol.