Cognitive Enhancement Through Transcranial Laser Therapy

NCT ID: NCT02851173

Last Updated: 2023-10-04

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE2

Total Enrollment

91 participants

Study Classification

INTERVENTIONAL

Study Start Date

2016-02-21

Study Completion Date

2020-04-30

Brief Summary

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This is a mechanism-driven translational project to test the efficacy of transcranial low-level light/laser therapy (LLLT), for enhancing cognitive function in middle-aged and older adults and participants with Mild Cognitive Impairment.

Detailed Description

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The goal of this project is to test the efficacy of LLLT to enhance neurocognitive function in middle-aged adults and examine the modulating influences of carotid atherosclerosis. The specific aims will be accomplished in a randomized controlled trial (RCT) by examining cognitive test performance and blood oxygen level-dependent (BOLD) response to a working memory task in middle-aged and older adults and participants with Mild Cognitive Impairment pre- and post- six-week long intervention of LLLT or placebo. In addition, the investigators will examine if carotid artery intima-media thickness (IMT) moderates the therapeutic effects of LLLT.

Conditions

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Healthy Participants Mild Cognitive Impairment

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Participants

Study Groups

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LLLT

Six weekly sessions of LLLT. The treatment will consist of applying light of a specific wavelength (1064 nm) using a laser diode supplied by Cell Gen Therapeutics, LLC (CG-5000 laser, HD Laser Center, Dallas, TX, USA). Each laser stimulation session will consist of total 8 min, with eight 1 min/cycle treatments alternating between two locations on the right forehead.

Group Type EXPERIMENTAL

LLLT

Intervention Type DEVICE

The treatment will consist of applying light of a specific wavelength (1064 nm) using a laser diode supplied by Cell Gen Therapeutics, LLC (CG-5000 laser, HD Laser Center, Dallas, TX, USA).

Placebo

The control group will undergo the same procedure as the treatment group, but will receive brief (5-s) stimulation to the intended site on the forehead, followed by 55 s of no stimulation, for each 1-min cycle. Thus the control group will receive approximately 1/12th of the cumulative energy density as the treatment group. This is sufficient to provide a brief sensation of slight heat (as active placebo) at the onset of each one-minute cycle, using a fraction of the energy received by the experimental group.

Group Type ACTIVE_COMPARATOR

Placebo

Intervention Type DEVICE

The treatment will consist of applying light of a specific wavelength (1064 nm) using a laser diode supplied by Cell Gen Therapeutics, LLC (CG-5000 laser, HD Laser Center, Dallas, TX, USA). However, the placebo group will receive approximately 1/12th of the cumulative energy density as the treatment group.

Interventions

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LLLT

The treatment will consist of applying light of a specific wavelength (1064 nm) using a laser diode supplied by Cell Gen Therapeutics, LLC (CG-5000 laser, HD Laser Center, Dallas, TX, USA).

Intervention Type DEVICE

Placebo

The treatment will consist of applying light of a specific wavelength (1064 nm) using a laser diode supplied by Cell Gen Therapeutics, LLC (CG-5000 laser, HD Laser Center, Dallas, TX, USA). However, the placebo group will receive approximately 1/12th of the cumulative energy density as the treatment group.

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Men and postmenopausal women, aged 45 and older
* Participants with Mild Cognitive Impairment

Exclusion Criteria

* neurological disease (e.g., large vessel stroke, seizure disorder, Parkinson's disease, Alzheimer's disease, clinically significant traumatic brain injury with loss of consciousness \> 30 minutes, multiple sclerosis, or brain infection/meningitis
* baseline IQ \< 85 placing them below the average range of intellectual functioning
* major psychiatric illness (e.g., schizophrenia, bipolar disorder) or substance abuse (diagnosed abuse and/or previous hospitalization for substance abuse)
* severe cardiovascular disease (e.g., pacemaker), chronic obstructive pulmonary disease, liver or kidney disease, inflammatory illness
Minimum Eligible Age

45 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes

Sponsors

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University of Texas at Austin

OTHER

Sponsor Role lead

Responsible Party

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Andreana P. Haley

Associate Professor

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Andreana Haley, Ph.D.

Role: PRINCIPAL_INVESTIGATOR

The University of Texas at Austin

Locations

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University of Texas at Austin

Austin, Texas, United States

Site Status

Countries

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United States

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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2015-09-0018

Identifier Type: -

Identifier Source: org_study_id

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