Correlation Between SUV on 18F-DCFPyL PET/CT and Gleason Score in Prostate Cancer

Summary

Prostate specific membrane antigen (PSMA) is a unique membrane bound glycoprotein, which is overexpressed manifold on prostate cancer cells and is well-characterized as an imaging biomarker of prostate cancer. Positron emission tomography / computer tomography (PET/CT) is a nuclear medicine procedure based on the measurement of positron emission from radiolabeled tracer molecules. 18F-DCFPyL is a tracer for prostate cancer PET imaging which binds to PSMA. The strength of functional imaging methods is in distinguishing tissues according to metabolism rather than structure. Studies have shown that PET/CT imaging with 18F-DCFPyL can detect prostate cancer lesions with excellent contrast and a high detection rate even when the level of prostate specific antigen is low. The objective of this study is to evaluate if the patient-wide SUVmax on 18F-DCFPyL PET/CT in locoregional and metastatic prostate cancer correlates with histopathologic Gleason score at initial biopsy. It is hypothesized that SUVmax will correlate positively with Gleason score. This is of interest because non-invasive risk stratification may be possible in the future.

Timeline

Start

2017-07-01

Primary completion

2018-10-05

Completion

2018-10-05

Drugs

Indications