RECRUITING

Discovery and Validation of Genetic Variants Affecting Microglial Activation in Alzheimer's Disease

Conditions

Alzheimer Disease PET scan Inflammation Genetic testing Cognitive Impairment

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Study Overview

This clinical trial focuses on testing the efficacy of different digital interventions to promote re-engagement in cancer-related long-term follow-up care for adolescent and young adult (AYA) survivors of childhood cancer.

Description

The primary objectives are to validate that a previously identified gene variant influences the proportion of activated microglia (PAM) and the amount of TSPO binding on PET imaging, to identify novel loci that influence PAM and TSPO PET, and to understand the functional consequences of gene variants that drive microglial activation in Alzheimer's disease.

Official Title

Discovery and Validation of Genetic Variants Affecting Microglial Activation in Alzheimer's Disease With 11C-ER176

Quick Facts

Study Start:2021-05-11

Study Completion:2026-12

Study Type:Not specified

Phase:Not Applicable

Enrollment:Not specified

Status:RECRUITING

Study ID

NCT04840979

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Ages Eligible for Study:50 Years

Sexes Eligible for Study:ALL

Accepts Healthy Volunteers:Yes

Standard Ages:ADULT, OLDER_ADULT

Inclusion Criteria	Exclusion Criteria
1. Age 50 and older at time of study entry. 2. Meet criteria for either a) amnestic mild cognitive impairment (single or mixed domain) or Alzheimer's disease, or b) have no cognitive impairment, based on history, exam, and neuropsychological testing. 3. Patients must have Clinical Dementia Rating Scale score of 0.5 or 1 at enrollment. Controls must have Clinical Dementia Rating scale score of 0 at enrollment. 4. Subjects must have AD biomarker previously obtained for research or clinical purposes or undergo a 18F-florbetaben PET scan during the screening process. Patients must have positive amyloid PET scan or CSF results consistent with AD. Controls must have a negative amyloid PET scan or CSF results not consistent with AD. 5. Self-identify as white, non-Hispanic or Latino 6. Subjects must be ableto provide informed consent 7. Written and oral fluency in English 8. Able to participate in all scheduled evaluations and to complete all required tests and procedures. 9. In the opinion of the investigator, the subject must be considered likely to comply with the study protocol and to have a high probability of completing the study.	1. Past or present history of certain brain disorders other than MCI or AD. 2. Certain significant medical conditions, which make study procedures of the current study unsafe. Such serious medical conditions include uncontrolled epilepsy and multiple serious injuries. 3. Contraindication to MRI scanning 4. Conditions precluding entry into the scanners (e.g. morbid obesity, claustrophobia, etc.). 5. Exposure to research related radiation in the past year that, when combined with this study, would place subjects above the allowable limits. 6. Participation in the last year in a clinical trial for a disease modifying drug for AD. 7. Inability to have a catheter in subject's vein for the injection of radioligand. 8. Inability to have blood drawn from subject's veins. 9. Taking anticoagulant (e.g., warfarin) or immunosuppressive/immunomodulatory medication. Nonsteroidal anti-inflammatory drugs (NSAIDs) are not exclusionary. Use of steroids in the 30 days preceding the PET scan. 10. Having a diagnosis of a chronic inflammatory disease (for example, multiple sclerosis, inflammatory bowel disease, rheumatoid arthritis, psoriasis, systemic lupus erythematosus) or a chronic infectious disease such as H.I.V.

Inclusion Criteria

Exclusion Criteria

1. Age 50 and older at time of study entry.
2. Meet criteria for either a) amnestic mild cognitive impairment (single or mixed domain) or Alzheimer's disease, or b) have no cognitive impairment, based on history, exam, and neuropsychological testing.
3. Patients must have Clinical Dementia Rating Scale score of 0.5 or 1 at enrollment. Controls must have Clinical Dementia Rating scale score of 0 at enrollment.
4. Subjects must have AD biomarker previously obtained for research or clinical purposes or undergo a 18F-florbetaben PET scan during the screening process. Patients must have positive amyloid PET scan or CSF results consistent with AD. Controls must have a negative amyloid PET scan or CSF results not consistent with AD.
5. Self-identify as white, non-Hispanic or Latino
6. Subjects must be ableto provide informed consent
7. Written and oral fluency in English
8. Able to participate in all scheduled evaluations and to complete all required tests and procedures.
9. In the opinion of the investigator, the subject must be considered likely to comply with the study protocol and to have a high probability of completing the study.

1. Past or present history of certain brain disorders other than MCI or AD.
2. Certain significant medical conditions, which make study procedures of the current study unsafe. Such serious medical conditions include uncontrolled epilepsy and multiple serious injuries.
3. Contraindication to MRI scanning
4. Conditions precluding entry into the scanners (e.g. morbid obesity, claustrophobia, etc.).
5. Exposure to research related radiation in the past year that, when combined with this study, would place subjects above the allowable limits.
6. Participation in the last year in a clinical trial for a disease modifying drug for AD.
7. Inability to have a catheter in subject's vein for the injection of radioligand.
8. Inability to have blood drawn from subject's veins.
9. Taking anticoagulant (e.g., warfarin) or immunosuppressive/immunomodulatory medication. Nonsteroidal anti-inflammatory drugs (NSAIDs) are not exclusionary. Use of steroids in the 30 days preceding the PET scan.
10. Having a diagnosis of a chronic inflammatory disease (for example, multiple sclerosis, inflammatory bowel disease, rheumatoid arthritis, psoriasis, systemic lupus erythematosus) or a chronic infectious disease such as H.I.V.

Contacts and Locations

Study Contact

Galen Ziaggi

CONTACT

212-305-9079

gfz2102@cumc.columbia.edu

Elena Golub

CONTACT

212-305-9079

eg2972@cumc.columbia.edu

Principal Investigator

Philip De Jager, MD

PRINCIPAL_INVESTIGATOR

Columbia University

Study Locations (Sites)

Columbia University Irving Medical Center

New York, New York, 10032

United States

Collaborators and Investigators

Sponsor: Columbia University

Philip De Jager, MD, PRINCIPAL_INVESTIGATOR, Columbia University

Study Record Dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Registration Dates

Study Start Date2021-05-11

Study Completion Date2026-12

Study Record Updates

Study Start Date2021-05-11

Study Completion Date2026-12

Terms related to this study

Keywords Provided by Researchers

PET scan
Inflammation
Genetic testing
Cognitive Impairment

Additional Relevant MeSH Terms

Alzheimer Disease