Radio-guided Surgery With DROP-IN Beta Probe for 68Ga-PSMA, in High-risk Prostate Cancer Patients Eligible for Robotic-assisted Radical Prostatectomy.

NCT ID: NCT05596851

Last Updated: 2022-10-27

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Total Enrollment

15 participants

Study Classification

OBSERVATIONAL

Study Start Date

2022-03-21

Study Completion Date

2023-12-01

Brief Summary

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The goal of this observational study is to evaluate the diagnostic efficacy and the safety of the combined approach with β-probe and 68Ga-PSMA-11 PET/CT in the correct identification of lymph node metastases, in high-risk prostate cancer patients undergoing radical prostatectomy and pelvic lymph node dissection.

Detailed Description

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Study Phase: Phase II

Primary Objective:

To evaluate the diagnostic accuracy of the combined approach with β-probe and 68Ga-PSMA-11 PET/CT in the correct identification of lymph node metastases, in high-risk prostate cancer patients undergoing radical prostatectomy and pelvic lymph node dissection. The histopathological analysis of the surgical specimens will be considered the standard of reference and diagnostic accuracy will be evaluated in terms of sensitivity and specificity.

Secondary Objectives:

* the identification of the most appropriate tumor-to-background ratio (TBR) able to correctly locate the signal emitted by PSMA-positive lymph nodes compared with the signal derived by the background rumor.
* safety and toxicity analysis regarding the intraoperative application of the β-probe.
* the comparison between the signal detected by the β-probe and 68Ga-PSMA-11 PET/CT images.
* the correlation of the signal detected by the β-probe with the PSMA expression (PSMA staining) in lymph node metastases assessed by immuno-histochemical analysis on the surgical specimens

Drug Dosage, Formulation, Administration: Intravenous administration of 1.1 MBq/Kg of 68Ga-PSMA-11.

Primary Endpoint: Primary: sensitivity and specificity in a per-region analysis.

Secondary Endpoints:

* comparison of β-probe intra-operatory measurements with ex-vivo ones.
* comparison of β-probe measurements and 68Ga-PSMA-11 semi-quantitative parameters (SUVmax and PSMA-TV).
* comparison of β-probe measurements and PSMA expression assessed by IHC (PSMA staining).

Conditions

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Prostate Cancer Positron Emission Tomography PSMA

Study Design

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Observational Model Type

OTHER

Study Time Perspective

PROSPECTIVE

Eligibility Criteria

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Inclusion Criteria

* Histologically proven prostate cancer
* High-risk prostate cancer (T\>T2c and/or PSA\>20 and/or ISUP\>3)
* Patients suitable for radical prostatectomy + pelvic lymph node dissection
* 68Ga-PSMA-11 PET/CT performed within 4 weeks prior to surgery
* PSMA positive pelvic lymph nodes detected at 68Ga-PSMA-11 PET/CT
* Age \>18 years old
* Willing to sign informed consent

Exclusion Criteria

* Patient unfit for surgery
* M1 stage (any M) detected at 68Ga-PSMA-11 PET/CT or other imaging modalities performed during diagnostic wok-up evaluation
* Unable to tolerate PET scan
Minimum Eligible Age

18 Years

Eligible Sex

MALE

Accepts Healthy Volunteers

No

Sponsors

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European Institute of Oncology

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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IEO European Institute of Oncology

Milan, , Italy

Site Status RECRUITING

Countries

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Italy

Central Contacts

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Francesco Ceci, MD

Role: CONTACT

+39 02-57489 315

Facility Contacts

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Francesco Ceci, MD PhD

Role: primary

Gennaro Musi, MD

Role: backup

Other Identifiers

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IEO 1703

Identifier Type: -

Identifier Source: org_study_id

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