Implementation of a New Algorithm for HRR Gene Mutation Testing in Patients With mPC Through Liquid Biopsy Integration

This study is looking at using a blood test (liquid biopsy) to check for DNA repair gene mutations (HRR genes) in men with metastatic prostate cancer when tumor tissue is not available for testing. The goal is to make genetic testing more accessible to help guide treatment choices. **You may be eligible if...** - You have metastatic prostate cancer - Your tumor tissue is unavailable or not enough for standard molecular testing - You are willing and able to provide written consent **You may NOT be eligible if...** - You are unable to provide written informed consent Talk to your doctor to see if this trial is right for you.