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An Investigational Scan (18F-DOPA PET/CT) for Improving the Clinical Management of Brain Tumors

A Centralized Protocol Evaluating the Safety and Clinical Impact of Amino Acid Pet for Brain Tumors

Status
Not yet recruiting
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06667726
Enrollment
47
Registered
2024-10-31
Start date
2026-10-01
Completion date
2029-10-08
Last updated
2026-03-16

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Malignant Brain Neoplasm

Brief summary

This phase II trial studies how well the addition of 18F-DOPA (amino acid) positron emission tomography (PET)/computed tomography (CT) to standard of care (SOC) imaging can improve the clinical management of patients with brain tumors in over 50% of cases. PET is an imaging test that helps to measure the information about functions of tissues and organs within the body. A PET scan uses a radioactive drug (radiotracer) to show this activity. CT scan uses X-rays to create images of the bones and internal organs within the body. Combining a PET scan with a CT scan can help make the images easier to interpret. PET/CT scans are hybrid scanners that combine both of the two modalities into a single scan. This allows images of both anatomy (CT) and function (PET) to be taken during the same scan. The 18F-DOPA PET/CT scan is done with a very small amount of a radioactive tracer called FDOPA. The PET/CT scan is then used to detect the location of tumors. Using the 18FDOPA-PET/CT scan in addition to the SOC scan may improve the clinical management of patients with brain tumors.

Detailed description

PRIMARY OBJECTIVE: I. To determine whether the addition of amino acid PET to standard of care imaging impacts clinical management of brain tumor patients in over 50% of cases. SECONDARY OBJECTIVES: I. To assess the safety and tolerability of amino acid PET for brain tumor patients in response to Food and Drug Administration (FDA) guidance that such data is needed to support a potential New Drug Application (NDA) for fluorodopa F 18 (18F-DOPA). II. To assess the rate of identification of tumor outside of standard magnetic resonance imaging (MRI) imaging. OUTLINE: Patients receive 18F-DOPA intravenously (IV) and undergo PET/CT over 30 minutes on day 1. After completion of study intervention, patients are followed for 3 days.

Interventions

PROCEDUREComputed Tomography

Undergo PET/CT

Given IV

PROCEDUREPositron Emission Tomography

Undergo PET/CT

Sponsors

Mayo Clinic
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Age 18 and older * Diagnosis of a brain tumor * Indication for amino acid PET imaging, including presurgical evaluation, radiation planning, MR imaging indeterminate for progression versus treatment effect, or clinical need for enhanced monitoring * Ability to give appropriate consent or have an appropriate representative available to do so

Exclusion criteria

* Patient is unable to undergo PET imaging * Persons who are pregnant or nursing

Design outcomes

Primary

MeasureTime frameDescription
Impact of 18F-DOPA PET/CT on clinical management3 days post-PET scan, up to 64 daysWill be measured using the Amino Acid PET Imaging Survey, to be completed by the provider after participant has received fluorodopa F 18 (18F-DOPA) positron emission tomography (PET)/computed tomography (CT). The survey consists of 4 questions, 1 multiple choice (what will PET scan be used for); 2 yes/no and one open-ended question related with how PET scan did or did not make a clinically meaningful impact in the management of patient care.

Secondary

MeasureTime frameDescription
Incidence of adverse events3 days post-PET scan, up to 64 daysWill be assessed using Common Terminology Criteria for Adverse Events (CTCAE) version 5.0.
Rate of identification of tumor outside of standard magnetic resonance imaging (MRI)3 days post-PET scan, up to 64 daysWill be measured using the Amino Acid PET Imaging Survey, to be completed by the provider after participant has received fluorodopa F 18 (18F-DOPA) positron emission tomography (PET)/computed tomography (CT). The survey consists of 4 questions, 1 multiple choice (what will PET scan be used for); 2 yes/no (including whether a tumor outside of MRI contrast enhancement was identified); and one open-ended question related with how PET scan did or did not make a clinically meaningful impact in the management of patient care.

Countries

United States

Contacts

CONTACTClinical Trials Referral Office
mayocliniccancerstudies@mayo.edu855-776-0015
PRINCIPAL_INVESTIGATORDerek R. Johnson, MD

Mayo Clinic in Rochester

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 17, 2026