Comparison of PET Imaging Patterns With PSMA and AR Expression in Prostate Cancer and Bladder Cancer

NCT ID: NCT05109884

Last Updated: 2023-03-17

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

COMPLETED

Clinical Phase

NA

Total Enrollment

10 participants

Study Classification

INTERVENTIONAL

Study Start Date

2020-02-01

Study Completion Date

2021-04-19

Brief Summary

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Patients suffering either from newly diagnosed very high risk locally advanced and/or oligometastatic prostate cancer (cohort A), metastatic castration-resistant prostate cancer (mCRPC, cohort B), newly diagnosed postate cancer with planned radical prostatectomy (cohort C) or primary bladder cancer with planned radical cystectomy (cohort D) as identified by a multidisciplinary team of specialists, will be included.

PET imaging patterns using PSMA- and FDHT PET scans will be correlated with prostate-specific membrane antigen and androgen specific receptor expression patterns in prostate cancer and bladder cancer.

Detailed Description

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Conditions

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Prostate Cancer

Study Design

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Allocation Method

NON_RANDOMIZED

Intervention Model

SINGLE_GROUP

Primary Study Purpose

DIAGNOSTIC

Blinding Strategy

NONE

Study Groups

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newly diagnosed very high risk locally advanced and/or oligometastatic prostate cancer

Group Type OTHER

PSMA PET Scan

Intervention Type DIAGNOSTIC_TEST

\[68Ga\]Ga-PSMAHBED-CC (Ga-PSMA) PET Scan

FDHT PET Scan

Intervention Type DIAGNOSTIC_TEST

\[18F\]-fluoro-5α-dihydrotestosterone (18F-FDHT) PET Scan

metastatic, castration resistant prostate cancer

Group Type OTHER

PSMA PET Scan

Intervention Type DIAGNOSTIC_TEST

\[68Ga\]Ga-PSMAHBED-CC (Ga-PSMA) PET Scan

FDHT PET Scan

Intervention Type DIAGNOSTIC_TEST

\[18F\]-fluoro-5α-dihydrotestosterone (18F-FDHT) PET Scan

newly diagnosed prostate cancer with planned radical prostatectomy

Group Type OTHER

PSMA PET Scan

Intervention Type DIAGNOSTIC_TEST

\[68Ga\]Ga-PSMAHBED-CC (Ga-PSMA) PET Scan

FDHT PET Scan

Intervention Type DIAGNOSTIC_TEST

\[18F\]-fluoro-5α-dihydrotestosterone (18F-FDHT) PET Scan

primary bladder cancer with planned radical cystectomy

Group Type OTHER

PSMA PET Scan

Intervention Type DIAGNOSTIC_TEST

\[68Ga\]Ga-PSMAHBED-CC (Ga-PSMA) PET Scan

FDHT PET Scan

Intervention Type DIAGNOSTIC_TEST

\[18F\]-fluoro-5α-dihydrotestosterone (18F-FDHT) PET Scan

Interventions

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PSMA PET Scan

\[68Ga\]Ga-PSMAHBED-CC (Ga-PSMA) PET Scan

Intervention Type DIAGNOSTIC_TEST

FDHT PET Scan

\[18F\]-fluoro-5α-dihydrotestosterone (18F-FDHT) PET Scan

Intervention Type DIAGNOSTIC_TEST

Eligibility Criteria

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Inclusion Criteria

Cohort A:

* Age 18-75 years
* Histologically or cytologically confirmed adenocarcinoma of the prostate with very high risk for the development of metastases (defined as PSA ≥20 or Gleason Score ≥8 or ≥cT3) and/or oligometastatic (T any, N positive, M any or T any, N any, M positive)
* Eastern Cooperative Oncology Group (ECOG) Performance Status grade 0 or 1
* Planned radical prostatectomy
* ≤ 5 osseous metastasis
* Signed and dated informed consent document indicating that the patient (or legally acceptable representative) has been informed of all pertinent aspects of the trial prior to study participation
* Willingness and ability to comply with scheduled visits, treatment plans, laboratory and radiographic assessments, and other study procedures

Cohort B - mCRPC:

* Age ≥ 18 years
* Histologically or cytologically confirmed prostate adenocarcinoma.
* Presence of skeletal or nodal metastases according to one of the following criteria:
* Confirmed pathological fracture related to the disease OR
* Confirmation of distant bone and/or nodal metastases on CT or MRI scan or bone scintigraphy.

OR

* Positive pathology report of metastatic lesion.
* Disease progression despite ADT as indicated by:
* PSA increase that is ≥ 2 ng/mL and ≥ 25% above the minimum PSA as reached during ADT or above the pre-treatment level, if no response was observed and which is confirmed by a second value 1 or more weeks later.

OR

* Progression of measurable lymph nodes (short axis ≥ 15 mm) or visceral lesion measurable per RECIST OR
* New metastatic lesions appearing on bone scan/imaging
* Chemical or surgical castration
* Eastern Cooperative Oncology Group (ECOG) Performance status 0-2.
* Signed and dated informed consent document indicating that the patient (or legally acceptable representative) has been informed of all pertinent aspects of the trial prior to study participation
* Willingness and ability to comply with scheduled visits, treatment plans, laboratory and radiographic assessments, and other study procedures

Cohort C:

* Age ≥ 18 years
* Histologically or cytologically confirmed prostate adenocarcinoma.
* Planned radical prostatectomy
* Signed and dated informed consent document indicating that the patient (or legally acceptable representative) has been informed of all pertinent aspects of the trial prior to study participation
* Willingness and ability to comply with scheduled visits, treatment plans, laboratory and radiographic assessments, and other study procedures

Cohort D:

* Age ≥ 18 years
* Histologically or cytologically confirmed bladder cancer.
* Planned radical cystectomy
* Signed and dated informed consent document indicating that the patient (or legally acceptable representative) has been informed of all pertinent aspects of the trial prior to study participation
* Willingness and ability to comply with scheduled visits, treatment plans, laboratory and radiographic assessments, and other study procedures

Exclusion Criteria

Cohort A:

* Tumour infiltration of the rectum or pelvic wall
* Visceral metastasis
* HIV positive
* Any contraindication for surgery
* Any other condition that, in the opinion of the Investigator, would impair the patient's ability to comply with study procedures.
* Any contraindication for performing a PET/MRI scan (if applicable)
* Patient's not eligible for the size of the PET/MRI gantry

Cohort B - mCRPC:

* HIV positive
* Any contraindication for tissue biopsy (if tissue biopsy is planned)
* Any contraindication for surgery (if surgery is planned)
* Any other condition that, in the opinion of the Investigator, would impair the patient's ability to comply with study procedures.
* Any contraindication for performing a PET/MRI scan (if applicable)
* Patient's not eligible for the size of the PET/MRI gantry

Cohort C:

* Any contraindication for surgery
* Any other condition that, in the opinion of the Investigator, would impair the patient's ability to comply with study procedures.
* Any contraindication for performing a PET/MRI scan (if applicable)
* Patient's not eligible for the size of the PET/MRI gantry

Cohort D:

* Any contraindication for surgery
* Any other condition that, in the opinion of the Investigator, would impair the patient's ability to comply with study procedures.
* Any contraindication for performing a PET/MRI scan (if applicable)
* Patient's not eligible for the size of the PET/MRI gantry
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Medical University of Vienna

OTHER

Sponsor Role lead

Responsible Party

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Markus Zeitlinger

Principal Investigator

Responsibility Role PRINCIPAL_INVESTIGATOR

Locations

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Medical University of Vienna

Vienna, , Austria

Site Status

Countries

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Austria

Other Identifiers

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PC_LBI:AD_V3

Identifier Type: -

Identifier Source: org_study_id

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