18F-DOPA-PET in Planning Surgery in Patients With Gliomas

Study Purpose

This pilot clinical trial studies fluorine F 18 fluorodopa (18F-DOPA)-positron emission tomography (PET) in planning surgery in patients with gliomas. New imaging procedures, such as 18F-DOPA-PET scan, may help find gliomas and may help in planning surgery.

Recruitment Criteria

Healthy volunteers are participants who do not have a disease or condition, or related conditions or symptoms

Accepts Healthy Volunteers

An interventional clinical study is where participants are assigned to receive one or more interventions (or no intervention) so that researchers can evaluate the effects of the interventions on biomedical or health-related outcomes.

An observational clinical study is where participants identified as belonging to study groups are assessed for biomedical or health outcomes.

Searching Both is inclusive of interventional and observational studies.

Study Type
Eligible Ages 7 Years and Over
Gender All
More Inclusion & Exclusion Criteria

Inclusion Criteria:

- MRI findings compatible with newly diagnosed or recurrent 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 - Provide informed written consent if >= 18 years; if < 18 years, provide informed written assent and parent or legal guardian provide informed written consent - Ability to provide tissue for mandatory correlative research component

Exclusion Criteria:

- Unable to undergo MRI scans with contrast (e.g. cardiac pacemaker, defibrillator, kidney failure) - Unable to undergo an 18F-DOPA 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; NOTE: other potentially interfering drugs: amoxapine, amphetamine, benztropine, buproprion, buspirone, cocaine, mazindol, methamphetamine, methylphenidate, norephedrine, phentermine, phenylpropanolamine, selegiline, paroxetine, citalopram, and sertraline; if a patient is on any of these drugs, list which ones on the on-study form - Any of the following: - Pregnant women - Nursing women - Men or women of childbearing potential who are unwilling to employ adequate contraception

Trial Details

This trial id was obtained from ClinicalTrials.gov, a service of the U.S. National Institutes of Health, providing information on publicly and privately supported clinical studies of human participants with locations in all 50 States and in 196 countries.

Trial ID:

Phase 1: Studies that emphasize safety and how the drug is metabolized and excreted in humans.

Phase 2: Studies that gather preliminary data on effectiveness (whether the drug works in people who have a certain disease or condition) and additional safety data.

Phase 3: Studies that gather more information about safety and effectiveness by studying different populations and different dosages and by using the drug in combination with other drugs.

Phase 4: Studies occurring after FDA has approved a drug for marketing, efficacy, or optimal use.


The sponsor is the organization or person who oversees the clinical study and is responsible for analyzing the study data.

Lead Sponsor
Mayo Clinic

The person who is responsible for the scientific and technical direction of the entire clinical study.

Principal Investigator
Nadia Laack
Principal Investigator Affiliation Mayo Clinic

Category of organization(s) involved as sponsor (and collaborator) supporting the trial.

Agency Class
Overall Status Recruiting
Countries United States

The disease, disorder, syndrome, illness, or injury that is being studied.

Malignant Glioma, Recurrent Brain Neoplasm
Additional Details


  • I. Accurately define a standardized 18F-DOPA PET tumor/normal tissue (T/N) threshold to delineate high grade gliomas (HGG) from low grade gliomas (LGG).
  • I. Determine correlation between 18F-DOPA PET activity, magnetic resonance imaging (MRI) contrast enhancement and high- or low-grade glioma biopsies.
  • II. Compare grade from maximum 18F-DOPA uptake samples for all resection patients against the final diagnostic grade, based on the highest grade component from all stereotactic and non-stereotactic samples acquired for open resection patients.
  • III. Compare volume differences between 18F-DOPA PET activity, MRI contrast enhancement, perfusion MRI (pMRI), and diffusion tensor imaging (DTI) for neurosurgical planning.
  • IV. Assess the time to progression for patients receiving resections and biopsies only.
  • I. Compare histopathology correlations with 18F-DOPA PET against correlations with perfusion MR imaging for accurate identification of the highest grade/highest density disease.
  • II. Compare histopathology correlations with 18F-DOPA PET against correlations with diffusion tensor imaging information for accurate identification of tumor extent.
  • III. Compare neurosurgical resection extent volume delineation with and without 18F-FDOPA-PET metabolic imaging information to determine role of metabolic imaging in neurosurgical resection planning.
OUTLINE: Within 1 week of biopsy or resection, patients undergo 18F-DOPA PET/computed tomography (CT) scan and pMRI and DTI at baseline. Patients then undergo stereotactic craniotomy or image-guided biopsy. After completion of study treatment, patients are followed up yearly for 5 years.

Contact a Trial Team

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Mayo Clinic, Rochester, Minnesota




Mayo Clinic

Rochester, Minnesota, 55905

Site Contact

Clinical Trials Referral Office


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