The X-Cancer's investigator-led trial of SAR-bisPSMA in known or suspected prostate cancer (X-Calibur) is a Phase I/II IIT in up to 150 patients at the Urology Cancer Center and GU Research Network (GURN) in Omaha, Nebraska, sponsored by Dr Luke Nordquist. It will investigate a broad spectrum of prostate cancer patients by imaging with ⁶⁴Cu-SAR-bisPSMA on the day of administration and at later timepoints. The X-Calibur trial will be assessing the safety of ⁶⁴Cu SAR-bisPSMA as well as looking at the impact of the product on staging and clinical management of participants with prostate cancer.