Clinical Research Directory

Prostate Cancer Risk Identification in a Multi-Ethnic Cohort: a Prospective US-based Multi-center Validation Study of Proclarix

The study is a prospective, multi-center, single cohort study involving up to 10 urological clinics in the US. After provision of informed consent and prior to the scheduled prostate biopsy (≤30 days), up to 20 mL of whole blood will be collected from each subject. The samples will be blinded and sent to Labcorp for evaluation using the Proclarix® assay. Prostate biopsy will be performed according to standard clinical practice of the urologist (systematic, targeted, or combined biopsy with a transrectal or transperineal approach with or without prior magnetic resonance imaging (MRI)). A minimum of 10 cores are required. Histopathological examination of the biopsy specimen will be performed according to the established local practice. A csPCa is defined as ISUP Grade Group ≥2 detected on biopsy. The assay results will be compared to the biopsy results.

CEST for Prostate Biopsy

Samples of prostate tissue acquired by biopsy to determine whether there is cancer will sometimes not find cancer that is present. Conventionally, magnetic resonance imaging (MRI) is used to identify 12 areas to biopsy. We will use an advanced MRI method called magnetization transfer (MT) and chemical exchange saturation transfer (CEST) imaging to suggest two additional biopsy location. Our objectives are to determine 1) whether MT/CEST MRI can aid in the detection prostate cancer and 2) whether MT/CEST MRI can aid conventional MRI in risk stratification and to decide whether targeted prostate biopsy is justified.