Fluorine F 18 Fluorodopa-Labeled PET Scan in Planning Surgery and Radiation Therapy in Treating Patients With Newly Diagnosed High- or Low-Grade Malignant Glioma

August 29, 2025 updated by: Mayo Clinic

A Pilot Study of Utility of 18F-FDOPA-PET for Neurosurgical Planning and Radiotherapy Target Delineation in Glioma Patients: Biopsy Validation of 18F-FDOPA-PET Uptake and Biodistribution in Brain Tumors

RATIONALE: New imaging procedures, such as fluorine F 18 fluorodopa-labeled PET scan, may help in guiding surgery and radiation therapy and allow doctors to plan better treatment.

PURPOSE: This clinical trial studies fluorine F 18 fluorodopa-labeled PET scan in planning surgery and radiation therapy in treating patients with newly diagnosed high- or low-grade malignant glioma

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

PRIMARY OBJECTIVES:

I. To determine correlation between 18F-FDOPA PET activity, MRI contrast enhancement, and high- or low-grade glioma biopsies.

II. To compare radiotherapy target volume delineation with and without 18F- FDOPA-PET metabolic imaging information to determine role of metabolic imaging in radiotherapy treatment planning.

SECONDARY OBJECTIVES:

I. To determine correlation between concordance of 18F-FDOPA PET activity, MRI contrast enhancement, and high- or low-grade glioma biopsies and patient outcomes including overall survival and progression free survival.

OUTLINE:

Beginning at no more than 1 week before biopsy and resection, patients undergo fluorine F 18 fluorodopa-labeled PET/CT scan and pre-operative MRI. Patients then undergo stereotactic craniotomy. Some patients may also undergo radiation therapy.

After completion of study treatment, patients are followed up every year for 5 years.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
24

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Early Phase 1

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
    • Minnesota
      • Rochester, Minnesota, United States, 55905
        • Mayo Clinic

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥18 years.
  • MRI findings compatible with newly diagnosed high- or low-grade malignant glioma
  • Planned craniotomy and resection or biopsy
  • Willing to sign release of information for any radiation and/or follow-up records
  • Negative pregnancy test done =< 48 hours of injection of study drug, for women of childbearing potential only
  • Provide informed written consent
  • Patients with eGFR < 60 mg/min/1.72m2 are eligible for the study; PLEASE NOTE: the patient is not eligible to receive the contrast for the pMRI at the study dose.

Exclusion Criteria:

  • Unable to undergo MRI scans with contrast (e.g. cardiac pacemaker, defibrillator, kidney failure)
  • Unable to undergo an 18F-FDOPA PET scan (e.g. Parkinson's Disease, taking anti-dopaminergic, or dopamine agonist medication or less than 6 half-lives from discontinuance of dopamine agonists)
  • Pregnant women; nursing women; men or women of childbearing potential who are unwilling to employ adequate contraception

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

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Arm I
Beginning at no more than 1 week before biopsy or resection, patients undergo fluorine F 18 fluorodopa-labeled PET/CT scan and pre-operative MRI. Patients then undergo stereotactic craniotomy. Some patients may also undergo radiation therapy.
Procedure: biopsy
Correlative studies
Other Names:
  • biopsies
Radiation: radiation therapy
Undergo radiation therapy
Other Names:
  • irradiation
  • radiotherapy
  • therapy, radiation
Procedure: computed tomography
Undergo computed tomography
Other Names:
  • tomography, computed
Procedure: therapeutic conventional surgery
Undergo stereotactic craniotomy
Radiation: radiation therapy treatment planning/simulation
Undergo radiation therapy treatment planning/simulation
Procedure: magnetic resonance imaging
Undergo magnetic resonance imaging
Other Names:
  • MRI
  • NMRI
  • nuclear magnetic resonance imaging
  • NMR imaging
Procedure: positron emission tomography
Undergo positron emission tomography
Other Names:
  • PET
  • FDG-PET
  • PET scan
  • tomography, emission computed
Drug: fluorine F 18 fluorodopa
Given IV
Other Names:
  • 18F-DOPA
  • 18F-FDOPA
  • (18)F-FDOPA
  • 18F-6- L-fluorodopa

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
18F-FDOPA PET activity, MRI contrast enhancement, and high- or low-grade glioma biopsies
Time Frame: Up to 2 years
Determine correlation between 18F-FDOPA PET activity, MRI contrast enhancement, and high- or low-grade glioma biopsies.
Up to 2 years
18F- FDOPA-PET metabolic imaging information
Time Frame: Up to 2 years
Compare radiotherapy target volume delineation with and without 18F- FDOPA-PET metabolic imaging information to determine role of metabolic imaging in radiotherapy treatment planning.
Up to 2 years

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Concordance of 18F-FDOPA PET and 11C-choline activity, MRI contrast enhancement, and high- or low-grade glioma biopsies
Time Frame: Up to 2 years
Determine correlation between concordance of 18F-FDOPA PET and 11C-choline activity, MRI contrast enhancement, and high- or low-grade glioma biopsies and patient outcomes including overall survival and progression free survival.
Up to 2 years
With and without 18F- FDOPA PET, 11C-choline PET metabolic imaging information
Time Frame: 2 Years
Compare radiotherapy target volume delineation with and without 18F- FDOPA PET, 11C-choline PET metabolic imaging information; pMRI and DTI advanced MR imaging, to determine role in radiotherapy treatment planning.
2 Years
18F-FDOPA PET activity, 11C-choline PET activity, MRI contrast enhancement, pMRI, and DTI, with high- or low-grade glioma biopsies
Time Frame: 2 years
Determine correlation between 18F-FDOPA PET activity, 11C-choline PET activity, MRI contrast enhancement, pMRI, and DTI, with high- or low-grade glioma biopsies.
2 years

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Mayo Clinic

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Cancer Institute (NCI)

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Study Chair: Nadia N. Laack, M.D., Mayo Clinic

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.

Helpful Links

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)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 26, 2010

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
November 5, 2013

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 26, 2019

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 14, 2010

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 16, 2010

First Posted (Estimated)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 20, 2010

Study Record Updates

Last Update Posted (Estimated)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 2, 2025

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 29, 2025

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2025

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • MC1078 (Other Identifier: Mayo Clinic Cancer Center)
  • NCI-2010-01607 (Registry Identifier: CTRP (Clinical Trial Reporting Program))
  • 10-001904 (Other Identifier: Mayo Clinic IRB)

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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