68Ga-PSMA PET in Diagnosing Metastasis in Patients With Ovarian Cancer

October 11, 2022 updated by: Michael Ohliger, MD, University of California, San Francisco

Gallium-68 Prostate Specific Membrane Antigen for Ovarian Cancer: A Pilot Feasibility Study

This trial studies how well gallium Ga 68-labeled prostate specific membrane antigen (PSMA)-11 (68Ga-PSMA) positron emission tomography (PET) works in patients with ovarian cancer to detect whether the tumor has spread to other places in the body. 68Ga-PSMA is a radioactive substance that binds to blood vessels around the ovarian cancer and can be imaged using PET. Diagnostic procedures, such as PET, may help find and diagnose find out how far the disease has spread.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

PRIMARY OBJECTIVES:

I. To determine the feasibility and utility of 68Ga-PSMA PET imaging patients with ovarian cancer.

II. Determine detection sensitivity for nodal metastases for PSMA PET stratified by node size.

SECONDARY OBJECTIVES:

I. To assess the correlation between targeted molecular uptake of 68Ga-PSMA PET and PSMA expression in surgical resection specimens.

EXPLORATORY OBJECTIVES:

I. To explore heterogeneity of 68Ga-PSMA PET uptake in cases of metastatic ovarian cancer.

II. To determine the relationship between 68Ga-PSMA PET uptake, diffusion weighted imaging, and MRI-derived tumor perfusion.

OUTLINE:

Patients receive gallium Ga 68-labeled PSMA-11 intravenously (IV) over 1-2 minutes. After about 60 minutes, patients undergo PET/magnetic resonance imaging (MRI) for approximately over 50-60 minutes. Patients may undergo an optional repeat gallium Ga 68-labeled PSMA-11 PET between 8 and 12 weeks after completion of the first PET/MRI.

After completion of study, patients are followed up at 28 days.

Study Type

Observational

Enrollment (Actual)

7

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

  • United States
    • California
      • San Francisco, California, United States, 94115
        • University of California, San Francisco

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

Genders Eligible for Study

Female

Sampling Method

Non-Probability Sample

Study Population

The patient population will be women with adnexal masses or other lesions suspicious for ovarian cancer metastases, who are scheduled for either resection or chemotherapy

Description

Inclusion Criteria:

  1. Patients with one of the following, identified on prior imaging (CT, MRI or Ultrasound):

    1. adnexal mass
    2. abdominal or pelvic tumor suspicious for ovarian cancer metastases (either suspected on clinical grounds, or known from prior tissue sampling)
  2. Female,
  3. Age >= 18 years
  4. Creatinine </= 1.5 mg/dL
  5. Ability to understand a written informed consent document, and the willingness to sign it

Exclusion Criteria:

  1. Pregnant or breastfeeding women
  2. Patient unlikely to comply with study procedure, restrictions and requirements and judged by the investigator to be unsuitable for study participation.

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

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Diagnostic 68Ga PSMA PET/MRI
Patients receive gallium Ga 68-labeled PSMA-11 IV over 1-2 minutes. After about 60 minutes, patients undergo PET/MRI for approximately over 50-60 minutes. Patients may undergo an optional repeat gallium Ga 68-labeled PSMA-11 PET between 8 and 12 weeks after completion of the first PET/MRI.
Drug: Gallium Ga 68-labeled PSMA-11
Given IV
Other Names:
  • (68)Ga labeled Glu-NH-CO-NH-Lys(Ahx)-HBED-CC
  • (68)Ga-labeled Glu-urea-Lys(Ahx)-HBED-CC
  • (68)Ga-PSMA Ligand Glu-urea-Lys(Ahx)-HBED-CC
  • (68)Gallium-PSMA Ligand Glu-urea-Lys(Ahx)-HBED-CC
  • 68Ga-HBED-CC-PSMA
  • 68Ga-labeled Glu-NH-CO-NH-Lys(Ahx)-HBED-CC
  • 68Ga-PSMA-11
  • [68Ga] Prostate-specific Membrane Antigen 11
  • [68Ga]GaPSMA-11
  • Ga-68 labeled PSMA-11
  • Gallium Ga 68 PSMA-11
  • Gallium-68 PSMA Ligand Glu-urea-Lys(Ahx)-HBED-CC
  • PSMA-HBED-CC GA-68
Procedure: Magnetic Resonance Imaging (MRI)
Given PET/MRI
Other Names:
  • MRI
  • Magnetic Resonance Imaging Scan
  • Medical Imaging, Magnetic Resonance / Nuclear Magnetic Resonance
  • MRI Scan
  • NMR Imaging
  • NMRI
  • Magnetic Resonance Imaging
  • Nuclear Magnetic Resonance Imaging (NMRI)
Procedure: Positron Emission Tomography (PET)
Undergo PET/MRI
Other Names:
  • Medical Imaging, Positron Emission Tomography
  • PET
  • PET Scan
  • Positron Emission Tomography Scan
  • Positron-Emission Tomography
  • proton magnetic resonance spectroscopic imaging
  • Positron Emission Tomography

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of gallium Ga 68-labeled PSMA-11 positron emission tomography (PET) positive lesions detected by standard staging scans
Time Frame: Study Visit Day 1
Will be descriptively reported for each patient and correlated with the lesions observed in standard imaging computed tomography/magnetic resonance imaging (CT/MRI). In addition, the mean, range, and standard deviation of standardized uptake value maximum (SUVmax) (across all visualized lesions per patient) and SUVmax-average (ave) (across all patients in the study cohort) will be descriptively reported.
Study Visit Day 1
Number of overall ovarian cancer lesions detected by standard staging scans
Time Frame: Study Visit Day 1
Will be descriptively reported for each patient and correlated with the lesions observed in standard imaging CT/MRI.
Study Visit Day 1
Average maximum standard uptake value (SUVmax)
Time Frame: Study Visit Day 1
The mean, range, and standard deviation of SUVmax across all visualized lesions per patient will be descriptively reported.
Study Visit Day 1
Number of lymph nodes detected by PET
Time Frame: Study Visit Day 1
Will be compared and stratified by lymph node size. For patients undergoing surgical resection, this will be compared with the number of involved lymph nodes by surgical resection. For lymph nodes that are not resected, the behavior on follow-up clinical CT scans (if available) will be used to assess for involvement.
Study Visit Day 1
Number of lymph nodes detected by MRI
Time Frame: Study Visit Day 1
Will be compared and stratified by lymph node size. For patients undergoing surgical resection, this will be compared with the number of involved lymph nodes by surgical resection. For lymph nodes that are not resected, the behavior on follow-up clinical CT scans (if available) will be used to assess for involvement.
Study Visit Day 1

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Correlation between targeted molecular uptake of 68Ga-PSMA PET and prostate-specific membrane antigen (PSMA) expression in surgical resection specimens
Time Frame: Study Visit Day 1
For patients undergoing surgical resection, the 68Ga PSMA-PET uptake will be correlated with PSMA expression in the primary tumor as well as metastatic sites. PSMA expression measurement is available as a core service from the cancer center
Study Visit Day 1

Collaborators and Investigators

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

Sponsor

University of California, San Francisco

Collaborators

Radiological Society of North America

Investigators

  • Principal Investigator: Michael Ohliger, MD, PhD, University of California, San Francisco

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)

April 2, 2018

Primary Completion (Actual)

June 30, 2022

Study Completion (Actual)

June 30, 2022

Study Registration Dates

First Submitted

February 26, 2019

First Submitted That Met QC Criteria

February 26, 2019

First Posted (Actual)

February 27, 2019

Study Record Updates

Last Update Posted (Actual)

October 12, 2022

Last Update Submitted That Met QC Criteria

October 11, 2022

Last Verified

October 1, 2022

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 174017
  • NCI-2018-02331 (Registry Identifier: CTRP (Clinical Trial Reporting Program))

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

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.

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