Recruiting
Phase 2

18F-DOPA PET/CT

Sponsor:

Mayo Clinic

Code:

NCT06667726

Conditions

Malignant Brain Neoplasm

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

Interventions

Computed Tomography

Fluorodopa F 18

Positron Emission Tomography

Study Details

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.

Conditions

Malignant Brain Neoplasm

Study ID

NCT06667726

Start date

Mar 24, 2026

Status verified date

Apr, 2026

Completion date

May 31, 2028

Anticipated

Primary completion date

May 31, 2028

Anticipated

Eligibility Criteria

Eligibility Criteria

Sex: All

Age: 18+

Healthy Volunteers: Not accepted

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

Study Design

Enrollment

47 participants

Anticipated

Intervention Model

Single group

Primary purpose

Diagnostic

Interventions and Outcome Measures

Arms

experimental: Diagnostic (18F-DOPA)

Patients receive 18F-DOPA IV and undergo PET/CT over 30 minutes on day 1.

Interventions

Computed Tomography

Undergo PET/CT

Fluorodopa F 18

Given IV

Positron Emission Tomography

Undergo PET/CT

Primary outcome measure

  • Impact of 18F-DOPA PET/CT on clinical management [ Time Frame: 3 days post-PET scan, up to 64 days ]

Central Contacts and Locations

Central contacts

Clinical Trials Referral Office

855-776-0015mayocliniccancerstudies@mayo.edu

Locations

Mayo Clinic in Rochester

Recruiting

Rochester, Minnesota, United States, 55905

Contacts

Clinical Trials Referral Office

855-776-0015mayocliniccancerstudies@mayo.edu

Principal Investigator:

Derek R. Johnson, MD

More Information

Sponsor

Mayo Clinic

Last update posted

Apr 28, 2026

Last verified

Apr, 2026

Trial information was received from ClinicalTrials.gov and was last updated on 2026-09-10. This information was provided to ClinicalTrials.gov by Mayo Clinic on 2026-04-28.