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Clinical Trial Summary

Patients with primary intermediate risk prostate cancer for whom radical prostatectomy is indicated, will be invited to participate to the present study.

Positron Emission Tomography coupled with scanner (PET-CT) using a radiotracer : 68Ga-RM2 and Positron Emission Tomography coupled with scanner (PET-CT) using another radiotracer : 68Ga-PSMA-617, will be scheduled.

Clinical Trial Description

European Association of Urology (EAU) Guidelines for initial staging of intermediate risk prostate cancer (Gleason score 3+4 and 4+3) include tomodensitometry (CT scan), magnetic resonance imaging (MRI) and bone scintigraphy. However, this group of tumor is highly heterogeneous. A distinction exist between tumors with Gleason score 3+4 (lower risk) and 4+3 which may be closer to high risk prostate cancer.

Consequently, management of these two sub-groups of tumors differs. The key point for optimal management of these tumors is to get specific and non-invasive molecular tools for better classification and stratification. This is of critical importance for personalized treatment decision-making.

Novel innovative radiotracers are today available for prostate cancer imaging notably small molecules, radiolabeled with 68Ga, targeting the prostate specific membrane antigen (PSMA) or antagonists, radiolabeled with 68Ga, targeting the Gastrin-Releasing Peptide receptor (GRP-R, a bombesin receptor subtype).

There are on growing evidences that Positron Emission Tomography coupled to Computed Tomography (PET-CT) with radiolabeled prostate specific membrane antigen analogues (PSMA) could be more sensitive and more specific for the detection of lymph node metastasis in high-risk cancers, as shown with PSMA-617 in recent studies. ;

Study Design

Related Conditions & MeSH terms

NCT number NCT03606837
Study type Interventional
Source University Hospital, Bordeaux
Phone 05 56 79 55 40
Status Not yet recruiting
Phase Phase 2
Start date April 1, 2019
Completion date September 1, 2020

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