Tau PET in Imaging and Cognition: Healthy Adults From 55-90
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ClinicalTrials.gov Identifier: NCT03372317 |
Recruitment Status :
Recruiting
First Posted : December 13, 2017
Last Update Posted : February 11, 2022
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Condition or disease | Intervention/treatment |
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Mild Cognitive Impairment Aging | Drug: 18F-MK-6240 |
Many cognitively healthy older adults have, upon post mortem evaluations, been found to have varying amounts of neurofibrillary tangles (tau) and beta-amyloid plaque deposits, which are the hallmark brain pathologies known to be associated with Alzheimer's disease and various other dementias. While some with these pathologies may not clinically express cognitive decline or dementia in their lifetime, human post-mortem studies suggest that increasing neurofibrillary tangle density correlates with neurodegeneration and cognitive impairment.
Imaging tauopathy in-vivo provides an opportunity to examine neurocognitive correlates of differential levels of tauopathy in the brain, allowing to further qualify pre-clinical states of cognitive impairment. The investigators aim to investigate possible protective mechanisms, such as cognitive reserve, that may modulate the relationship between tauopathy and cognitive decline.
Study Type : | Observational |
Estimated Enrollment : | 105 participants |
Observational Model: | Cohort |
Time Perspective: | Cross-Sectional |
Official Title: | Tau Positron Emission Tomography (PET) in Imaging and Cognition |
Actual Study Start Date : | June 1, 2018 |
Estimated Primary Completion Date : | January 2023 |
Estimated Study Completion Date : | December 2023 |

Group/Cohort | Intervention/treatment |
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Non-demented elders
Participants aged 55-90 that are cognitively normal or have mild cognitive impairment will receive 18F-MK-6240 to identify the presence of tau protein in the brain.
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Drug: 18F-MK-6240
Results of the 18F-MK-6240 PET scan will be correlated with other observations.
Other Name: 6-[18F]Fluoro-3-(1H-pyrrolo[2,3-c]pyridin-1-yl)isoquinolin-5-amine |
- Total number of individuals with tau present [ Time Frame: Up to 5 years ]Based on the scans, the total number of subjects with identifiable tau in their scans will be measured.
- Cognition [ Time Frame: Up to 5 years ]Relation of Tau PET to measures of cognition such as memory and reasoning
- Functional imaging (fMRI) [ Time Frame: Up to 5 years ]Relation of Tau PET to imaging acquired during task performance
Biospecimen Retention: Samples With DNA

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Ages Eligible for Study: | 55 Years to 90 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | Yes |
Sampling Method: | Probability Sample |
Inclusion Criteria:
- Aged 55-90
- Previously received an amyloid PET scan
- Residing near Columbia University Medical Center
- Must be willing and able to participate
Exclusion Criteria:
- Have a contraindication to PET (e.g, metallic implants, pacemaker, claustrophobia, or cannot lie flat for one hour)
- Pregnancy
- Lactating Women
- Current, past, or anticipated exposure to radiation
- Significant active physical illness

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): NCT03372317
Contact: Reshma Babukutty | 212-305-6314 | rb2996@cumc.columbia.edu |
United States, New York | |
Columbia University Medical Center | Recruiting |
New York, New York, United States, 10032 | |
Contact: Ashley Mensing, BS 212-305-6314 ao2454@cumc.columbia.edu | |
Principal Investigator: Yaakov Stern, PhD |
Principal Investigator: | Yaakov Stern, PhD | Columbia University |
Responsible Party: | Yaakov Stern, Professor of Neuropsychology, Columbia University |
ClinicalTrials.gov Identifier: | NCT03372317 |
Other Study ID Numbers: |
AAAR6959 2RF1AG038465-06 ( U.S. NIH Grant/Contract ) |
First Posted: | December 13, 2017 Key Record Dates |
Last Update Posted: | February 11, 2022 |
Last Verified: | February 2022 |
Individual Participant Data (IPD) Sharing Statement: | |
Plan to Share IPD: | Yes |
Plan Description: | De-identified data could be shared based on NIH regulations |
Time Frame: | Study data will be available within 1 year |
Access Criteria: | We will be sharing de-identified data with a consortium that is aggregating studies that have employed tau PET tracers |
Studies a U.S. FDA-regulated Drug Product: | Yes |
Studies a U.S. FDA-regulated Device Product: | No |
Product Manufactured in and Exported from the U.S.: | No |
Tau MK-6240 Cognition |
Cognitive Dysfunction Cognition Disorders Neurocognitive Disorders Mental Disorders |