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68Ga-RM2 compared to 68Ga-PSMA-617 PET/CT for prostate cancer imaging according to various metastatic risks “UROPET”

Etude monocentrique, exploratoire, comparant la TEP/TDM au 68Ga-RM2 à la TEP/TDM au 68Ga-PSMA-617 chez des patients atteints de cancers de la prostate de différents risques métastatiques, candidats à une prostatectomie totale - UROPET

Status
Active, not recruiting
Phases
Phase 2
Study type
Interventional
Source
EU CTR
Registry ID
EUCTR2017-000490-36-FR
Enrollment
24
Registered
2018-02-27
Start date
2018-02-19
Completion date
Unknown
Last updated
2020-06-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Prostate cancer MedDRA version: 20.0 Level: PT Classification code 10060862 Term: Prostate cancer System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps) MedDRA version: 20.0 Level: PT Classification code 10036909 Term: Prostate cancer metastatic System Organ Class: 10029104 - Neoplasms benign, malignant and unspecified (incl cysts and polyps)

Interventions

Product Name: 68Ga-RM2 Product Code: 68Ga-RM2 Pharmaceutical Form: Solution for injection Product Name: 68Ga-PSMA-617 Product Code: 68Ga-PSMA-617 Pharmaceutical Form: Solution for injection

Sponsors

CHU de Bordeaux
Lead Sponsor

Eligibility

Sex/Gender
Male

Inclusion criteria

Inclusion criteria: Patients prostate cancer Candidate for radical prostatectomy after discussion in multidisciplinary committee Covered by the national health insurance system Written informed consent willingly obtained Are the trial subjects under 18? no Number of subjects for this age range: F.1.2 Adults (18-64 years) yes F.1.2.1 Number of subjects for this age range 24 F.1.3 Elderly (>=65 years) yes F.1.3.1 Number of subjects for this age range 24

Exclusion criteria

Exclusion criteria: Any kind of previous treatment for prostate cancer (hormonal treatment, EBRT, brachytherapy, cryotherapy, etc…); Patient not candidate for radical prostatectomy and/or unable to benefit from surgery Freedom deprivated patient by judiciary or administrative decision Patient under legal protection or unable to express its own consent Patient within exclusion period from another clinical trial Known contraindication to radiopharmaceuticals and / or excipients

Design outcomes

Primary

MeasureTime frame
Main Objective: - To compare 68Ga-PSMA-617 uptakes values between prostatic sextants for which histologic examination reveal a Gleason score 6, those for which histologic examination reveal a Gleason score 7(3+4) (favourable intermediate risk), for which histologic examination reveal a Gleason score 7(4+3) (unfavourable intermediate risk) and those for which histologic examination reveal a Gleason score 8 or more - To compare 68Ga-RM2 uptakes values between prostatic sextants for which histologic examination reveal a Gleason score 6, those for which histologic examination reveal a Gleason score 3+4 (favourable intermediate risk), those for which histologic examination reveal a Gleason score 4+3 (unfavourable intermediate risk) and for which histologic examination reveal a Gleason score 8 or more ;Secondary Objective: • To compare 68Ga-PSMA-617 and 68Ga-RM2-uptakes between prostatic sextants for which histologic examinations reveal a Gleason score 6 • To compare 68Ga-PSMA-617 and 68Ga-RM2-uptakes between prostatic sextants for which histologic examinations reveal a Gleason score 7(3+4) • To compare 68Ga-PSMA-617 and 68Ga-RM2-uptakes between prostatic sextants for which histologic examinations reveal a Gleason score 7(4+3) • To compare 68Ga-PSMA-617 and 68Ga-RM2-uptakes between prostatic sextants for which histologic examinations reveal a Gleason score 8 or more • To evaluate and compare 68Ga-PSMA-617 and 68Ga-RM2-uptakes in metastatic nodes • To estimate the association between 68Ga-PSMA-617 and 68Ga-RM2-uptakes and Gleason score both in vivo and ex vivo • To compare 68Ga-PSMA-617 uptake in healthy and pathological tissues at 1h and 2h after injection • To compare 68Ga-RM2 uptake in healthy and pathological tissues at 1h and 2h after injection • To compare micro-imaging data to immunohistochemistry ;Primary end point(s): Median Standardized Uptake Value (SUV) of 68Ga-PSMA-617 and 68Ga-RM2 ;Timepoint(s) of evaluation of this end point: Inclusion visit (V1) Follow up

Secondary

MeasureTime frame
Secondary end point(s): - Gleason score - Micro-imaging data : receptor density Bmax and local radioactive concentration expressed in cpm - Ex vivo immunohistochemistry data: Immunoreactive score (IRS) considering both percentage of stained cells and staining intensity. ;Timepoint(s) of evaluation of this end point: Inclusion visit (V1) Follow up visit (V2) Last visit (V3 - Prostatectomy)

Countries

France

Contacts

Public ContactResponsable Etudes Cliniques

CHU de Bordeaux

leila.boukami@chu-bordeaux.fr0557820317

Outcome results

None listed

Source: EU CTR (via WHO ICTRP) · Data processed: Feb 4, 2026