 - No definitive evidence of metastases on screening CT or MRI of abdomenpelvis and radionuclide whole body bone scan per the judgment of the investigator. Abdominal andor pelvic lymph nodes measuring 2 cm or less in short axis diameter are allowed. Lesions identified on other imaging modalities e.g. PSMA or choline PET that are not visualized on CT andor MRI or radionuclide bone scan are allowed. Equivocal lesions on bone scan should be followed up with additional imaging as clinically indicated. 