NCT03372317

Brief Summary

The investigators aim to use the new PET radioligand, 18F-MK-6240, to detect tau pathology in cognitive healthy and mild cognitive impairment (MCI) elders. The investigators will then examine the interactions between differential tau burden and performance on cognitive tasks, functional magnetic resonance imaging (fMRI) neural activation patterns, and other cognitive and behavioral measures. By investigating these relationships, the investigators hope to understand the cognitive and behavioral outcomes of tau deposition found in specific brain regions in cognitively normal/mildly cognitively impaired adults. Furthermore, the study aims to examine how the presence of tau may contribute to the risk of subsequent cognitive decline, neurodegeneration, and dementia.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
105

participants targeted

Target at P50-P75 for all trials

Timeline
19mo left

Started Jun 2018

Longer than P75 for all trials

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress84%
Jun 2018Dec 2027

First Submitted

Initial submission to the registry

December 8, 2017

Completed
5 days until next milestone

First Posted

Study publicly available on registry

December 13, 2017

Completed
6 months until next milestone

Study Start

First participant enrolled

June 1, 2018

Completed
8.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 1, 2027

Expected
11 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2027

Last Updated

February 11, 2026

Status Verified

February 1, 2026

Enrollment Period

8.6 years

First QC Date

December 8, 2017

Last Update Submit

February 9, 2026

Conditions

Keywords

TauMK-6240Cognition

Outcome Measures

Primary Outcomes (3)

  • Total number of individuals with tau present

    Based on the scans, the total number of subjects with identifiable tau in their scans will be measured.

    Up to 5 years

  • Cognition

    Relation of Tau PET to measures of cognition such as memory and reasoning

    Up to 5 years

  • Functional imaging (fMRI)

    Relation of Tau PET to imaging acquired during task performance

    Up to 5 years

Study Arms (1)

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.

Drug: 18F-MK-6240

Interventions

Results of the 18F-MK-6240 PET scan will be correlated with other observations.

Also known as: 6-[18F]Fluoro-3-(1H-pyrrolo[2,3-c]pyridin-1-yl)isoquinolin-5-amine
Non-demented elders

Eligibility Criteria

Age55 Years - 90 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

Subjects, 55-90 years old that previously received an amyloid PET scan

You may qualify if:

  • Aged 55-90
  • Previously received an amyloid PET scan
  • Residing near Columbia University Medical Center
  • Must be willing and able to participate

You may not qualify if:

  • 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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Columbia University Medical Center

New York, New York, 10032, United States

RECRUITING

Biospecimen

Retention: SAMPLES WITH DNA

Plasma, serum and cells will be retained

MeSH Terms

Conditions

Cognitive DysfunctionPick Disease of the Brain

Condition Hierarchy (Ancestors)

Cognition DisordersNeurocognitive DisordersMental DisordersFrontotemporal DementiaFrontotemporal Lobar DegenerationDementiaBrain DiseasesCentral Nervous System DiseasesNervous System Diseases

Study Officials

  • Yaakov Stern, PhD

    Columbia University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
observational
Observational Model
COHORT
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Professor of Neuropsychology

Study Record Dates

First Submitted

December 8, 2017

First Posted

December 13, 2017

Study Start

June 1, 2018

Primary Completion (Estimated)

January 1, 2027

Study Completion (Estimated)

December 1, 2027

Last Updated

February 11, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will share

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

Locations