Exploring the Utility of [18F]3F4AP for Demyelination Imaging in Controls, Neurodegeneration and Traumatic Brian Injury
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ClinicalTrials.gov Identifier: NCT04710550 |
Recruitment Status :
Recruiting
First Posted : January 14, 2021
Last Update Posted : February 24, 2021
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The overall objective is to obtain an initial assessment of the value of using [18F]3F4AP for imaging demyelinating diseases such as traumatic brain injury (TBI), neurodegenerative diseases such as mild cognitive impairment (MCI) and Alzheimer's Disease (AD):
- Aim 1) Assess the safety of [18F]3F4AP in healthy volunteers and subjects with traumatic brain injury (TBI) and neurocognitive impaired subjects (AD/MCI). Hypothesis 1: Administration of [18F]3F4AP will result in no changes in vitals or other adverse events.
- Aim 2) Assess the radiation doses to the main organs in healthy volunteers. Hypothesis 2: the radiation doses to each organ will be comparable in all subjects and within the acceptable limits.
- Aim 3) Assess the pharmacokinetics of a bolus infusion of [18F]3F4AP in humans including healthy volunteers and patients. Hypothesis 3: the pharmacokinetics of [18F]3F4AP at the whole brain level will be similar in controls, TBI and AD/MCI subjects. The kinetics in demyelinated lesions will be slower than in healthy areas.
- Aim 4) Correlate MR images with [18F]3F4AP PET images. Hypothesis 4A: all the lesions seen on the MRI will show increased signal (VT or SUV) on the PET images. Hypothesis 4B: some of the lesions on the MRI will show increased signal (VT or SUV) on the PET but not all.
- Aim 5) Correlate [18F]3F4AP PET signal with neuropsychological testing in people with TBI and AD/MCI. Hypothesis 5A: increased PET signal (VT or SUV) will correlate with impaired Mini Mental State Examination (MMSE).
Condition or disease | Intervention/treatment | Phase |
---|---|---|
Brain Injuries, Traumatic Demyelinating Disorder Alzheimer Disease | Drug: F18-3F4AP | Phase 1 |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 66 participants |
Allocation: | Non-Randomized |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Diagnostic |
Official Title: | Exploring the Utility of [18F]3F4AP for Demyelination Imaging in Controls, Neurodegeneration and Traumatic Brian Injury |
Actual Study Start Date : | January 5, 2021 |
Estimated Primary Completion Date : | December 1, 2025 |
Estimated Study Completion Date : | December 1, 2025 |

Arm | Intervention/treatment |
---|---|
Experimental: Safety/Dosimetry Cohort |
Drug: F18-3F4AP
PET Scan |
Experimental: Traumatic Brain Injury |
Drug: F18-3F4AP
PET Scan |
Experimental: AD/MCI |
Drug: F18-3F4AP
PET Scan |
Active Comparator: Healthy Controls |
Drug: F18-3F4AP
PET Scan |
- Number of participants with treatment-related adverse events as assessed by CTCAE v4.0 [ Time Frame: 5 years ]Determine number of participants with treatment-related adverse events as assessed by CTCAE v4.0

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Ages Eligible for Study: | 18 Years to 90 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Inclusion Criteria:
- Subjects are 18 years of age and older, except AD subjects who are 60 to 90 years of age.
Exclusion Criteria:
- A subject will not be eligible for inclusion in this study if any of the exclusion criteria for PET/CT or MRI studies applies. A negative STAT quantitative serum hCG pregnancy test is required on the day of the PET/CT scan before female subjects of childbearing potential can participate. Any woman of childbearing potential, who is seeking to become pregnant, is breastfeeding, or who suspects she may be pregnant will not be enrolled in the study.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT04710550
Contact: Georges El Fakhri, PhD | 617-726-9640 | ELFAKHRI.GEORGES@MGH.HARVARD.EDU |
United States, Massachusetts | |
Massachusetts General Hospital | Recruiting |
Boston, Massachusetts, United States, 02114 | |
Contact: Julia-Ann Scotton, BS 617-643-1967 |
Principal Investigator: | Georges El Fakhri, PhD | Mass. General Hospital |
Responsible Party: | Georges El Fakhri, Director, Gordon Center for Medical Imaging, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT04710550 |
Other Study ID Numbers: |
2020P002254 |
First Posted: | January 14, 2021 Key Record Dates |
Last Update Posted: | February 24, 2021 |
Last Verified: | February 2021 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | No |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
3F4AP |
Alzheimer Disease Brain Injuries Brain Injuries, Traumatic Demyelinating Diseases Nerve Degeneration Wounds and Injuries Dementia Brain Diseases Central Nervous System Diseases |
Nervous System Diseases Tauopathies Neurodegenerative Diseases Neurocognitive Disorders Mental Disorders Craniocerebral Trauma Trauma, Nervous System Pathologic Processes |