Prostate cancer (PCa) is one of the most common malignancies worldwide in men. Prostate specific membrane antigen (PSMA), as known as folate hydrolase I or glutamate carboxypeptidase II, is overexpressed on the cells of prostatic adenocarcinoma. Various low molecular weight radiopharmaceuticals targeting PSMA such as PSMA-11, PSMA-617 for 68Ga- or 177Lu- labeling have been developed. 68Ga-AAZTA-NI-093 is a novel agent incorporating a hypoxia sensitive nitroimidazole(NI)-moiety and a PSMA-targeting. This pilot study was prospectively designed to evaluate the safety, biodistribution, radiation dosimetry and diagnostic value of 68Ga-AAZTA-NI-093 PET/CT in prostate cancer patients.
