Clinical Trial

Detection of Clinically Significant Prostate Cancer

Study Description

Detection of Clinically Significant Prostate Cancer With 18F-DCFPyL PET/MR

Background: Currently, patients suspected of having prostate cancer undergo ultrasound-guided systematic biopsies of the prostate. However, up to a quarter of clinically significant tumors, which may pose a risk to patient's well-being, may be missed on random biopsies. MRI enables detection of further tumors in this patient population, but also has limited accuracy. Study hypothesis: We hypothesize that hybrid PET-MRI, a novel scanner which incorporates MRI with molecular imaging will improve the detection rate of clinically significant tumors. Study design: In this prospective trial, we will recruit 57 men who are suspected of having prostate cancer but have had negative systematic biopsies, who have been diagnosed with low-risk disease but have clinically signs of more aggressive tumor or who have a focal tumor detected and are candidates for minimally-invasive tumor ablation (=tumor destruction with laser or ultrasound waves), in whom it is crucial to exclude other tumor sites. All patients will undergo PET/MRI after injection of a radiopharmaceutical called "18F-DCFPyL". This is a radioactive probe which has been shown in preliminary studies to be sensitive and specific for detection of prostate cancer. All lesions detected on PET/MRI will undergo biopsy under ultrasound using fused PET/MRI and ultrasound images for guidance, and compared to histopathology. The primary outcome measure in this study is the proportion of clinically significant prostate cancers that are detected with PET/MRI compared to MRI alone. Improved detection of clinically significant prostate cancer may enable a tailored, personalized therapeutic approach, decreasing morbidity and potentially improving overall patient outcome.

Location

Locations Selected Location

Methods

No pharmaceutical medication involved No pharmaceutical medication involved
Recruiting patients only Recruiting patients only

Procedure - PET/MR-ultrasound guided Fusion biopsy

All focal lesion with PI-RADS >=3 on MR or with DCFPyL uptake on PET will undergo a focal fusion biopsy

Procedure - Systemic TRUS guided biopsy

Transrectal ultrasound guided systemic prostate biopsy

Additional Information

Official Study Title

Detection of Clinically Significant Prostate Cancer With 18F-DCFPyL PET/MR

Clinical Trial ID

NCT03149861

ParticipAid ID

Rb4n1e