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Alzheimer Disease, Late OnsetNCT03300726

Synaptic Injury and Functional Connectivity in Alzheimer's Disease

An observational study of Alzheimer Disease, Late Onset, run by Ohio State University at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to examine cross-sectional associations between CSF markers of synaptic injury (Ng and SNAP-25) and functional connectivity in default and semantic memory networks using 3T- fMRI in individuals with MCI (i.e. Read more about this study

Who is it for?
Ages 60 to 95 yearsHealthy volunteers can take part
Conditions the study is for
Alzheimer Disease, Late Onset
What is being tested?
CSF analysis and Functional MRI
Type of treatment
Surgery or procedure
How many people
35 participants
Where
1 siteUnited States
Study dates
12 Feb 2018to 22 Sep 2021
Phase
Observational
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 60 to 95 years
  • All sexes
  • Healthy volunteers accepted
  • Adult, Older adult

Study population: Participants will be recruited from the community and the Memory Disorders Clinic of The OSU Wexner Medical Center Department of Neurology. This study will include cognitively normal individuals (CDR 0; n=20), individuals with a clinical diagnosis of single-domain or multi-domain amnestic MCI due to AD or mild AD dementia (CDR 0.5 or 1; n=20).

Inclusion Criteria: Participants included in the study should meet all 4 inclusion criteria:

  1. 60 years of age or older
  2. A clinical diagnosis of MCI, mild AD dementia, or normal cognition
  3. No significant medical or surgical co-morbidities
  4. No contraindications to LP or MRI.

Exclusion criteria: Participants with any of the following criteria will be excluded from the study:

  1. Participants with MCI due to AD or mild AD dementia who have been treated with cholinesterase inhibitors or glutamate antagonists in the 3 months prior to study enrollment
  2. Individuals with any past history of ischemic or traumatic brain injury
  3. Individuals with imaging evidence of significant cerebrovascular disease or structural brain lesions (e.g. tumor, demyelinating disorders, infection, or congenital anomalies)
  4. Active mood disorder
  5. Active alcohol use
  6. Active use of benzodiazepines, barbiturates, anticholinergic, or anti-epileptic medications

Trial locations and contacts

1 site in 1 country.

United States1 site
  • The Ohio State University Wexner Medical Center

    Columbus, Ohio, 43210

Other trials in United States

About this study

Official title: Cerebrospinal Fluid Markers of Synaptic Injury and Functional Connectivity in Alzheimer's Disease

The purpose of this study is to examine cross-sectional associations between CSF markers of synaptic injury (Ng and SNAP-25) and functional connectivity in default and semantic memory networks using 3T- fMRI in individuals with MCI (i.e. the earliest clinically detectable stage of cognitive impairment) due to AD or mild AD dementia (CDR 0.5-1; n=20) and cognitively normal controls (CDR 0; n=20).

Read the detailed description

SPECIFIC AIMS:

Aim 1: Investigate correlations between CSF biomarkers of synaptic injury (Ng and SNAP-25) and functional connectivity (FC) within the default mode network (DMN) using resting-state fMRI (adjusting for age, gender, apolipoprotein-E4 [APOE4] genotype, task performance, and regional brain atrophy) in MCI/AD and controls.

Aim 2: Examine correlations between CSF biomarkers of synaptic injury and functional connectivity (FC) within the semantic memory network on task-activated fMRI using the Famous Name Discrimination Task (FNDT) (adjusting for age, gender, APOE4 genotype, task performance, and regional brain atrophy) in MCI/AD and controls.

Being tested
CSF analysis, Functional MRI
Keywords
Synaptic injury
Medical subject headings
Alzheimer Disease

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • CSF analysisDiagnostic test

    CSF analysis for tau, p-tau181, Abeta42, and CSF levels of markers of synaptic injury

  • Functional MRIRadiation

    Functional MRI during resting state and semantic memory task activation

Study groups in NCT03300726
Study groupRoleWhat they receive
MCI due to AD or mild AD dementiaThe clinical diagnoses of amnestic MCI due to AD or mild AD dementia will be made according to standard clinical criteria as described by the National Institute of Aging -Alzheimer's Association Working Group and supported by CSF biomarker data for tau, p-tau181, and Aβ42. This includes evaluation for other systemic or neurological disorders which could account for the cognitive impairment, and inclusion of results from ancillary structural imaging (CT or structural MRI), neuro-psychometric testing, and FDG-PET imaging (when available) into the diagnostic scheme. All participants in this group will undergo clinical and cognitive evaluations, CSF analysis, and functional MRI during resting state and semantic memory tasks.
Receives: Diagnostic Test: CSF analysis; Radiation: Functional MRI
Normal controlsNormal cognition will be defined as cognitive performance on detailed neuropsychometric testing that falls within 1 SD of age-, gender-, and education-matched norms in all cognitive domains, and no subjective report of cognitive decline from an individual's baseline (i.e. CDR 0). All participants in this group will undergo clinical and cognitive evaluations, CSF analysis, and functional MRI during resting state and semantic memory tasks.
Receives: Diagnostic Test: CSF analysis; Radiation: Functional MRI

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Correlations between CSF biomarker measurements and fMRI measures of functional connectivity at baseline

    Cross-sectional associations between CSF biomarker measurements and fMRI measures at baseline

    Measured: Study duration is 3 years (36 months) for each participant, including 3 visits: one for cognitive evaluations, one for fMRI, and one for CSF collection.

Secondary outcomes (2)
  1. CSF levels of tau, p-tau181, Abeta42, Ng, and SNAP-25 (pg/ml)

    Quantification of biomarker levels in CSF

    Measured: CSF collection will be performed for each participant once during the study (within 3 years of study enrollment).

  2. Functional Connectivity measures on functional MRI (r)

    Functional Connectivity Measures on fMRI during resting state and task activation

    Measured: fMRI will be performed for each participant once during the study (within 3 years of study enrollment).

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Oct 2017
  2. Study start12 Feb 2018
  3. Primary completion22 Sep 2021
  4. Study completion22 Sep 2021

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Observational
Observational model
Case-control
Time perspective
Prospective
Enrolment
35 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03300726
Sponsor's protocol ID
2017H0255
Status last verified
Sep 2021
First submitted
25 Sep 2017
Last updated
28 Sep 2021
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

An observational study of Alzheimer Disease, Late Onset, run by Ohio State University at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 28 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Correlations between CSF biomarker measurements and fMRI measures of functional connectivity at baseline (time frame: Study duration is 3 years (36 months) for each participant, including 3 visits: one for cognitive evaluations, one for fMRI, and one for CSF collection.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 28 Sep 2021.

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