It depends… Each of the (many) biomarker tests (like Decipher, for just one example) looks for a specific genomic marker to help in the diagnosis and treatment of your prostate cancer. Is the biomarker that Decipher tests for one that will help in your diagnosis/treatment post-RP?

Having a brother who passed away from metastatic prostate cancer, have you had a genetic (germline) test to see if you have inherited any gene mutations related to prostate cancer?