Clinical Management Decisions for Recurrent Prostate Cancer Patients Based on [11C]Acetate PET Scan

May 10, 2018 updated by: Wendell Yap, MD

Clinical Management Decisions Based on [11C]Acetate Positron Emission Tomography Performed on Prostate Cancer Patients With Biochemical Recurrence

When evaluating prostate cancer patients for recurrent disease, computed tomography (CT), and magnetic resonance imaging (MRI) are both highly sensitive methods for detecting lymph nodes, but are not specific as to whether the lymph nodes are malignant or benign.

While positron emission tomography (PET) utilizing radioactive glucose (FDG) has revolutionized staging, restaging, and monitoring response to therapy in many prevalent cancers such as breast, colorectal, esophageal, head and neck, lung, lymphoma, and melanoma, findings with prostate cancer have proven less sensitive because prostate cancer has a lower avidity for glucose. A newer PET isotope, utilizing acetate that is incorporated into the cell membrane of rapidly proliferating cells, has shown greater sensitivity than FDG in detecting prostate cancer.

This study will assess the clinical effectiveness of utilizing [11C]Acetate PET scans in identifying recurrent prostate cancer.

Study Overview

Status

No longer available

Conditions

Intervention / Treatment

Detailed Description

FDG-PET imaging uses a form of radioactive glucose (18-fluoro-deoxyglucose or FDG), which allows the measurement of glucose metabolic rate of any tissue in the body. The most prevalent tumors have a glucose avidity that is typically greater than 2.5 times the avidity of benign tissue. Therefore, FDG-PET is able to discriminate between benign lymph nodes and those containing metastases, and similarly between scar tissue and recurrence of tumor.

Unfortunately, prostate cancer is only minimally glucose avid, and therefore, FDG-PET is much less effective in staging prostate cancer. The current FDA-approved imaging agent for prostate cancer is a monoclonal antibody specific for prostate cancer cells, capromab pendetide, labeled with a long-lived radionuclide [111]Indium that is used to image the patient over a six day period. However, recent data show that another PET radiopharmaceutical, [11C]Acetate (which has been FDA approved for years for cardiac imaging), is avidly taken up by prostate metastasis and is more sensitive than either [111]Indium capromab pendetide or FDG-PET.

This study will assess the clinical effectiveness of utilizing [11C]Acetate PET scans in identifying recurrent prostate cancer and aim to find at what PSA levels it is most effective.

Study Type

Expanded Access

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
    • Kansas
      • Kansas City, Kansas, United States, 66160
        • University of Kansas Medical Center

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

45 years to 80 years (ADULT, OLDER_ADULT)

Accepts Healthy Volunteers

No

Genders Eligible for Study

Male

Description

Inclusion Criteria:

  • Positive for recurrent prostate cancer by PSA criteria
  • Recurrence definition:
  • Status post-operative radical prostatectomy, recurrence is defined by a PSA of greater than or equal to 0.2 ng/ml
  • Patients who have failed external beam radiation, or status post-brachytherapy, have recurrence as defined as PSA above 2.0 ng/ml the nadir PSA after treatment
  • Subject is able to comprehend the study objectives and provide written informed consent before the initiation of any study-related procedures.

Exclusion Criteria:

  • Eastern Cooperative Oncology Group (ECOG) status of ≥ 2
  • Any other concurrent malignancy
  • Patients without remission of disease (no PSA decrease)
  • Patients without recurrence of disease (PSA remains low)

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?

Collaborators and Investigators

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

Sponsor

Wendell Yap, MD

Collaborators

University of Kansas Medical Center

Investigators

  • Principal Investigator: Wendell Yap, MD, University of Kansas Medical Center

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 Registration Dates

First Submitted

January 17, 2013

First Submitted That Met QC Criteria

January 23, 2013

First Posted (ESTIMATE)

January 28, 2013

Study Record Updates

Last Update Posted (ACTUAL)

May 16, 2018

Last Update Submitted That Met QC Criteria

May 10, 2018

Last Verified

May 1, 2018

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 13429

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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