@richiec
Are you referring to Provenge? That’s really the only Monoclonal antibody Available for prostate cancer itself, Unless you are involved in a clinical study. When you have Proveng it does not lower your PSA. It’s something you should have when your PSA is low and it will hopefully prevent the cancer from getting worse. Unfortunately it isn’t such a panacea.

Provenge extends survival for men with advanced, asymptomatic or minimally symptomatic metastatic castration-resistant prostate cancer (mCRPC), with an average survival benefit of 4.1 months in clinical trials compared to placebo.