Tau PET Imaging in the NACC Study Cohort

Running, not enrolling

Conditions studied: Normal Controls, MCI

In brief

The purpose of this study is to measure the amount of a protein in the brain known as tau using an imaging procedure called Positron Emission Tomography (PET/CT). 18F-AV-1451 is a specialized radioactive PET imaging agent that is able to detect the presence of tau in the brain. In this study, the investigator will use the 18F-AV-1451 to capture images of tau in the brain. Findings from this study will likely provide insight into the mechanisms and distinctions of age-related cognitive decline and that of very early Alzheimer's disease.

Key facts

Study ID

NCT03189485

Run by

University of Pennsylvania

People needed

106

Starts

2017-11-22

Expected to finish

2026-05-31

Last updated by the study team

2025-10-29

Who can join

Age: 60 and older. Sex: any. Healthy volunteers: accepted.

You may qualify if…

• Males and females ≥ 60 years of age.
• Part of the NACC longitudinal cohort (Protocol #: 068200) of the PMC/ADCC with consensus conference designation of cognitively normal or MCI.
• NACC longitudinal visit must be completed or scheduled to be completed within 6 months of the 18F-AV-1451 TAU PET scan.
• A brain MRI must be performed within 12 months prior to their study scan date and be deemed of adequate quality that the scan may be used for study analysis, including 3T and/or 7 Tesla high-resolution imaging of medial temporal lobe structures.
• An amyloid PET scan completed or scheduled within 12 months of their study scan date
• Women must be post-menopausal or surgically sterile

You may not qualify if…

• Any medical or psychiatric conditions that, in the opinion of the investigator, would compromise the subject's safety or successful participation in the study.
• Have evidence of structural abnormalities such as major stroke or mass on MRI that is likely to interfere with analysis of the PET scan
• Inability to tolerate or contraindication to imaging procedures in the opinion of an investigator or treating physician
• Have current clinically significant cardiovascular disease .Have a history of significant or ongoing alcohol abuse or substance abuse or dependence based on medical record review or self-reported

Where it is running

• UPenn — Philadelphia, Pennsylvania, United States

Full record on ClinicalTrials.gov

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