Inclusion Criteria:  Histologically or cytologically proven metastatic non-small-cell lung carcinoma (NSCLC) after at least one line of chemotherapy (with or without immunotherapy) including NSCLC with oncogene addiction. ECOG Performance Status ≥ 2. Age ≥ 18. Written informed consent. Patient capable, according to the investigator, to comply with the requirements of the study.  Exclusion Criteria:  Small Cell Lung Cancer (including mixed forms). Patient with NSCLC for whom a decision has already been made to permanently discontinue all systemic cancer treatment. Impossible follow up for geographical, social or psychological reason. Inability to answer a questionnaire (language or neurological barrier). Patient under guardianship. Patient being treated in a therapeutic trial. Patient not covered by social security. -