68Ga PSMA in Preprostatectomy Patients

January 22, 2024 updated by: Michael Graham PhD, MD

68Ga PSMA-HBED-CC in Intermediate to High-Risk Preprostatectomy Patients

This study investigates if a new drug (PSMA) makes prostate cancer easier to identify in positron-emission tomography (PET) imaging. If this works, prostate cancer treatments can be prescribed that match the location of the disease. PSMA is radiolabeled with Gallium-68 (Ga-68). This means a participant receives a small dose of radiation from the drug - less than the annual radiation limit for a medical worker.

To test this new drug, participants will receive an injection of Ga-68 PSMA and then have a PET scan. This PET scan, and the reported results, will be entered into the medical record and shared with the treating oncologists.

Study Overview

Detailed Description

This study evaluates PSMA-HBED-CC labelled with Gallium-68, abbreviated 68Ga PSMA. This is a radiotracer that attaches to receptors in the membrane of prostate cancer cells. The 68Ga PSMA is identified using a positron emission tomography (PET) scanner. It is believed that 68Ga PSMA will identify prostate cancer more precisely than normal imaging methods (MRI, CT, or ultrasound). Imaging is key to successful treatment - disease must be identified to be treated.

Men who are scheduled to undergo a prostatectomy are invited to test 68Ga PSMA. Participants undergo the 68Ga PSMA PET scan before the prostatectomy. Information from the prostatectomy, including any MRI, CT, or ultrasound imaging, will be used to determine if the 68Ga PSMA PET imaging was better than the standard imaging.

Depending on the prostatectomy findings, participants may be invited back for a second 68Ga PSMA scan. This is done if the first scan showed positive lymph nodes or soft tissue metastases but the surgery/biopsy results do not.

The results from these scans will be shared with the participant. Results will also be entered into the participant's medical record and shared with the treating oncologists.

Study Type

Interventional

Enrollment (Actual)

22

Phase

  • Phase 2
  • Phase 3

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Iowa
      • Iowa City, Iowa, United States, 52242
        • University of Iowa Hospitals and Clinics

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Biopsy-proven prostate adenocarcinoma
  • Intermediate to high-risk disease, defined as one of the following factors: PSA > 10, T2b or greater, or a Gleason score of 7 or greater
  • A PSA level resulted within the past 2 months
  • Planned prostatectomy with lymph node dissection
  • Karnofsky performance status (KPS) greater than or equal to 50 (ECOG/WHO 0, 1, or 2) within the last 3 months
  • Must be treatment naïve (not have received neoadjuvant chemotherapy, radiation therapy, hormonal therapy, androgen deprivation therapy, or focal ablation techniques (e.g., HiFu)
  • Not receiving any other investigational agents (i.e., unlabeled drugs or drugs under an IND for initial efficacy investigations
  • Ability to understand and the willingness to provide informed consent.

Exclusion Criteria:

  • Cannot receive furosemide
  • Allergy to sulfa or sulfa-containing medications
  • History of Stevens-Johnson syndrome
  • Known Paget's disease
  • Uncontrolled intercurrent illness including, but not limited to, ongoing or active infection, symptomatic congestive heart failure, unstable angina pectoris, cardiac arrhythmia, or psychiatric illness/social situations that would limit compliance with study requirements

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Diagnostic
  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: 68Ga PSMA PET scan
Ga-68 PSMA-HBED-CC PET
Ga-68 PSMA-HBED-CC is an investigational PET drug (radionuclide), that binds to the prostate specific receptors. The dose will be about 5mCi (range 3-7 mCi) and administered intravenously.
Other Names:
  • Gallium-68 PSMA-HBED-CC PET scan

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sensitivity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Regional Pelvic Nodal Metastases on a Per Patient Basis
Time Frame: within 2 weeks of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
within 2 weeks of prostatectomy
Specificity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Regional Pelvic Nodal Metastases on a Per Patient Basis
Time Frame: within 2 weeks of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
within 2 weeks of prostatectomy
Positive Predictive Value (PPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Regional Pelvic Nodal Metastases on a Per Patient Basis
Time Frame: within 2 weeks of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
within 2 weeks of prostatectomy
Negative Predictive Value (NPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Regional Pelvic Nodal Metastases on a Per Patient Basis
Time Frame: within 2 weeks of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
within 2 weeks of prostatectomy

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Sensitivity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Extra-pelvic Nodal Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Specificity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Extra-pelvic Nodal Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Positive Predictive Value (PPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Extra-pelvic Nodal Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Negative Predictive Value (NPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Extra-pelvic Nodal Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Sensitivity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Visceral Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Specificity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Visceral Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Positive Predictive Value (PPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Visceral Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Negative Predictive Value (NPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Visceral Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Sensitivity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Osseous Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Specificity of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Osseous Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Positive Predictive Value (PPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Osseous Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy
Negative Predictive Value (NPV) of Ga 68-labeled PSMA-11 Positron Emission Tomography/Computed Tomography (PET/CT) for the Detection of Osseous Metastases on a Per Patient Basis
Time Frame: Within 12 months of prostatectomy
Patients who have a positive node on imaging and on pathology will be considered a true-positive. Patients who have no nodes on imaging and pathology will be considered true- negatives. Patients with positive nodes on imaging and negative on pathology will be considered false positives and those with positive nodes on pathology but negative on imaging will be considered false negatives.
Within 12 months of prostatectomy

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Investigators

  • Study Chair: Michael Graham, MD, PhD, University of Iowa

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

February 16, 2018

Primary Completion (Actual)

July 22, 2021

Study Completion (Actual)

July 22, 2021

Study Registration Dates

First Submitted

December 22, 2017

First Submitted That Met QC Criteria

December 22, 2017

First Posted (Actual)

January 2, 2018

Study Record Updates

Last Update Posted (Actual)

February 15, 2024

Last Update Submitted That Met QC Criteria

January 22, 2024

Last Verified

January 1, 2024

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

YES

IPD Plan Description

Codified data will be archived and stored in an imaging repository with limited metadata for analysis. Individuals seeking use of these data should contact the study chair. A data sharing contract for a HIPAA limited dataset will need to be executed prior to data sharing.

IPD Sharing Time Frame

Available as requested. Data will be archived indefinitely for research purposes.

IPD Sharing Access Criteria

Individuals seeking use of these data should contact the study chair.

IPD Sharing Supporting Information Type

  • CSR

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Prostate Cancer

Clinical Trials on Ga-68 PSMA-HBED-CC PET

Subscribe