The main objective is to validate prospectively the results of a retrospective study showing a correlation between the level of NKp30 and NKp46 receptor-activators expression on the surface of NK cells and 1) the survival time, 2) the response time to castration in patients with metastatic prostate cancer.
Prospective monocenter, open-label study.
During a visit in the frame of management of the disease, a single blood sample will be collected. Patients will then have a standard care follow-up for a period of 5 years. Follow up data (death, progression) will be collected every 6 months.
