Age

18–80

Sex

MALE

Healthy volunteers

Not accepted

1. Newly diagnosed prostate adenocarcinoma confirmed by histopathology or cytopathology;
2. Metastatic disease confirmed by imaging or pathology;
3. Diagnosis of metastatic prostate cancer within 2 weeks before enrollment;
4. Aged 18-80 years;
5. A GAD-7 score of 5 or higher at screening;
6. Adequate cognitive ability to understand and participate in the study;
7. Adequate language comprehension and ability to complete the study questionnaires independently;
8. Access to a smartphone and an internet connection required to use the study platform;
9. Provision of written informed consent.

1. An acute or unstable psychiatric disorder, such as severe depressive or anxiety disorder, or severe insomnia requiring urgent specialist care;
2. History of or current cognitive impairment, such as intellectual disability or Alzheimer's disease;
3. A requirement for emergency surgery within 72 hours after enrollment;
4. Planned prostate cancer-directed radiotherapy, surgery, or chemotherapy during the study period;
5. Current participation in another interventional clinical trial;
6. A request from the participant's family to withhold the diagnosis or disease-related information from the participant.

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