Analysis of Circulating Tumor mArkers in Blood 4 - ALCINA 4

Inclusion Criteria: * Patient treated for cancer at one of the participating center * 18 years old or higher * Signed informed consent form * Patient not deprived of their liberty or under guardianship (including temporary guardianship) * Patient covered by social security scheme * Patient with no compliance issue (related to geographical, social or psychological reasons) for study follow up * Other additional criteria will be defined (defining tumor type and clinical setting), by cohort If a biopsy tumor sample is to be taken: * Tumor considered as accessible by biopsy (at the investigator's discretion). * Normal blood coagulation tests (if applicable, and in case of a non-superficial tumor lesion). * No anticoagulant or antiaggregant treatment for the biopsy. Exclusion Criteria : Pregnant and/or breast-feeding women depending on cohort.