Analysis of Circulating Tumor mArkers in Blood 4 - ALCINA 4

Multi-cohort exploratory prospective study. Participation in the ALCINA 4 study does not change the standard management of the patient, including the treatments administered. A sampling schedule will be set up for each cohort. Depending on the clinical context studied and the biomarkers studied and/or sought, the timing of blood samples will vary between cohorts. There may be up to 4 samples (or more) taken per patient for up to 18, 24 or 36 months. If a specific tumor sample is required, it will be collected only once during the study.