Sensory-Evoked Cortical Gamma Oscillation

NCT ID: NCT05206305

Last Updated: 2024-12-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

20 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-07-01

Study Completion Date

2026-06-30

Brief Summary

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The purpose of the study is to investigate the efficacy of cortical gamma oscillation on visual sensory processing and cognitive function in Alzheimer's Disease (AD) patients by combining a therapeutic sensory stimulation device capable of evoking 40-Hz gamma oscillation via non-invasive visual and auditory stimulation with pre-established markers of cortical network activity, i.e., electroencephalography (EEG) and event-related potentials (ERP), to evaluate the applicability of the 40-Hz multimodel sensory stimulation as a novel therapeutic approach for treatment of AD patients.

Detailed Description

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The central hypothesis of the study is that sustained 40Hz gamma oscillatory sensory stimulation therapy will improve cognitive function in patients with AD. The further hypothesis is that the improvement in cognitive function will result from improved connectivity and cortical network function as measured by EEG and ERP.

The hypotheses will be tested by the following:

1. \- Elucidate the immediate impact of gamma oscillations on sensory processing and cognitive function by assessing cognitive function and cortical network function prior to the introduction of sensory stimulation and comparing it to post-therapeutic assessments immediately following the acute administration of therapy on visual processing.
2. \- Explore the short and long-term therapeutic benefits of a sub-chronic (8 weeks) treatment by assessing cognitive function and cortical network connectivity immediately after the 8 week sensory stimulation therapy. If significant changes are observed between pre-therapy and post-therapy neurophysiologic data for an individual subject, neurophysiological testing will be repeated 4 weeks following the conclusion of therapy.
3. \- Investigate the correlation between neurophysiology and cognitive function by assessing cognitive function and neurophysiological measures of cortical network activity at multiple time points to determine if therapeutic changes in one domain reflect changes related to the other domain.

Conditions

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Alzheimer Disease

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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AD Patients

Patients with Alzheimer's Disease, as verified by positive A(beta)-PET and/or CSF tau/A(beta) biomarkers, who will receive one hour daily gamma frequency sensory stimulation from the investigational device for an 8 week period.

Group Type EXPERIMENTAL

GammaSense Stimulation device

Intervention Type DEVICE

Cognito Therapeutics GammaSense Stimulation device delivers sensory (auditory and visual) stimuli at a rate of 40 Hz to the wearer for one hour each day.

Interventions

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GammaSense Stimulation device

Cognito Therapeutics GammaSense Stimulation device delivers sensory (auditory and visual) stimuli at a rate of 40 Hz to the wearer for one hour each day.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Individuals ages 60 and older with established diagnosis of Alzheimer's Disease as defined by the current consensus criteria for AD (Albert et al, 2011, Jack et al, 2011; McKhann et al, 2011)
* Fluent and literate in English language
* Able to consent for themselves based upon the MacArthur Competence Assessment Tool for Clinical Research
* Patients with a pre-existing positive A(beta)-PET and/or CSF tau/A(beta) markers or willingness to undergo a Lumbar Puncture (LP) with these results

Exclusion Criteria

* Not fluent and literate in English
* Severe dementia
* Other medical conditions/neurodegenerative disease that could significantly impair cognitive abilities
* Cardiac pacemakers or any other implants that may not be compatible with MRI
* Cognitively impaired to the point the patient is unable to consent for themselves
* Claustrophobic to the point that medication is required
Minimum Eligible Age

60 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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University of Tennessee Medical Center

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Roberto Fernandez-Romero, MD

Role: PRINCIPAL_INVESTIGATOR

University of Tennessee Medical Center

Locations

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University of Tennessee Medical Center

Knoxville, Tennessee, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Roberto Fernandez-Romero, MD

Role: CONTACT

Phone: 865-305-7242

Email: [email protected]

Kyle Dean

Role: CONTACT

Phone: 865-305-2273

Email: [email protected]

Facility Contacts

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Janet H Parkey

Role: primary

David Grant

Role: backup

Other Identifiers

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ALD-001-122021

Identifier Type: -

Identifier Source: org_study_id