Optimizing the Announcement of Advanced or Metastatic Prostate Cancer Using Animated Videos (CartDiag PROSTATE)

Inclusion Criteria: 1. Collection of the patient's non-opposition prior to participation in the study. 2. Patient aged ≥ 18 years at inclusion. 3. Patient with newly diagnosed advanced or metastatic prostate cancer. 4. Patients due to start systemic therapy. 5. Patients undergoing consultation. 6. Patient affiliated to a social security scheme. 7. Patient capable, according to the physician-investigator, of communicating well, understanding and complying with the requirements of the study. 8. Patient with a smartphone or computer to review the video at home. Exclusion Criteria: 1. Patient related to any member of the study staff or having a close relationship or conflict of interest with the sponsor. 2. Patient to receive only local treatment. 3. Patient who does not understand French. 4. Clinical follow-up impossible for psychological, family, social or geographical reasons. 5. Vulnerable patient: deprived of liberty by judicial or administrative decision, adult subject to legal protection or unable to express non-opposition.