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PET Tau - Neurodegenerative Disease Imaging

Positron Emission Tomography (PET) Imaging of Tau Pathology in Neurodegenerative Disease

Status
Recruiting
Phases
Phase 2Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT03143374
Enrollment
300
Registered
2017-05-08
Start date
2016-08-23
Completion date
2030-09-30
Last updated
2025-10-15

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

Conditions

Neurodegenerative Disease

Keywords

Neurodegenerative Disease

Brief summary

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). Tau has been shown to build up in the brains of patients with injury to brain cells. This study looks at neurodegenerative diseases such as frontotemporal degeneration (FTD).

Detailed description

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). Tau has been shown to build up in the brains of patients with injury to brain cells, including Alzheimer's disease, Parkinson's disease, Lewy body disease and Frontotemporal degeneration. 18F-AV-1451 (formally known as 18F-T807) is a specialized radioactive PET tracer that sticks to the tau protein in the brain. In this study, researchers will use 18F-AV-1451 to form images of tau binding in the brain. 18F-AV-1451 is an investigational or experimental imaging agent that has not yet been approved by the Food and Drug Administration for use in brain imaging. In this study, researchers want to find out how accurate and useful 18F-AV-1451 is in imaging patients who have problems with thinking, remembering, speech, and visual activities, and may be diagnosed with different types of neurodegenerative disease. This study will help test how imaging measures may provide information that could be used to determine diagnosis for patients in the future. The results of the PET/CT scan will be compared with other information obtained under related protocols, including brain magnetic resonance imaging (MRI), spinal fluid and cognitive test results.

Interventions

The experimental tracer used for this study is called 18F-AV-1451 is a specialized radioactive PET tracer used to detect the presence of tau proteins in the brain. Participants will undergo a baseline 18F-AV-1451 brain scan. If funding is available, participants will be asked to return for one or more longitudinal visits, including a 18F-AV-1451 brain scan, every 9 to 18 months after the prior visit. The 18F-AV-1451 PET/CT scan will require up to 3 hours of time, including preparation. The scan will take place using PET/CT scanners in the Perelman Center for Advanced Medicine or the Hospital of the University of Pennsylvania.

Sponsors

Avid Radiopharmaceuticals
CollaboratorINDUSTRY
University of Pennsylvania
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
DIAGNOSTIC
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes

Inclusion criteria

FOR NEURODEGENERATIVE SUBJECTS 1. Participants has been diagnosed with one of the following neurodegenerative diseases: FTD, PPA, CBD, PSP, MCI, AD, PCA, PD, PDD, DLB, MSA, ALS or FTD- ALS 2. Participants will be 18 years of age or older 3. Participants must be informed of the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific procedures. If the subject is unable to provide informed consent, the subject's legal representative may consent on behalf of the patient, but the patient will be asked to confirm assent. 4. Participants must be willing and able to comply with scheduled visits and imaging procedures. 5. Subject is concurrently enrolled in centers UNICORN(842873) protocol. INCLUSION CRITERIA FOR HEALTHY CONTROL SUBJECTS 1. Participants will be 18 years of age or older. 2. Participants must be informed of the investigational nature of this study and provide written informed consent in accordance with institutional and federal guidelines prior to study-specific procedures. 3. Participants must be willing and able to comply with scheduled visits and imaging procedures. 4. Subject is concurrently enrolled in centers UNICORN(842873) protocol

Exclusion criteria

FOR ALL SUBJECTS 1. Females who are pregnant or breast feeding at the time of the baseline PET/CT scan will not be eligible for this study. A urine pregnancy test will be performed in women of child-bearing potential at screening and within 24 hours of any scheduled PET/CT. 2. Inability to tolerate or contraindication to imaging procedures in the opinion of an investigator or treating physician 3. Any medical or psychological condition that, in the opinion of the investigator, would compromise the subject's safety or successful participation in the study 4. The investigators may choose to exclude participants with clinically significant cardiovascular disease and/or documented abnormalities on ECG out of an abundance of caution. 5. The investigators of UNICORN (IRB #842873) have determined the participant has evidence of structural abnormalities such as major stroke or mass on MRI that is likely to interfere with analysis of the PET scan. ADDITIONAL

Design outcomes

Primary

MeasureTime frameDescription
Regional uptake10 yearsExamine regional anatomic distribution of PET-tau uptake comparatively in dementia syndromes and PET-Tau uptake with neuropsychology and MRI regional GM atrophy at baseline collected under other center protocols. Uptake with neuropsychology and MRI regional GM atrophy at baseline.

Secondary

MeasureTime frameDescription
Changes over time10 yearsUse regression to relate longitudinal neuropsychological and regional MRI decline in dementia syndromes to baseline regional PET-tau uptake.
CSF Correlate10 yearsCorrelate CSF total and phosphorylated (p-tau/t-tau) tau with regional PET-tau uptake in dementia syndromes at baseline.

Countries

United States

Contacts

Primary ContactDahlia Kamel
kamel.dahlia@pennmedicine.upenn.edu215-662-6134

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026