Circulating Tumour Cells as Biomarkers to Predict Prostate Cancer Metastasis for Treatment Stratification of Cancer

The goal of this study is to establish the value of Circulating Tumour Cell (CTC) positivity in predicting post-RP treatment failure, including BCR and new lesions detected by cancer imaging. We plan to recruit participants who will undergo Radical Prostatectomy (RP). Participants will have their blood samples taken just before surgery and 3 months after the surgery to test for CTCs. Then participants will be followed-up for cancer progression information at 3 month intervals for the first year then yearly intervals after that. Their PSA will be observed over time.