- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05375552
The Effect of Transcranial Direct Current Stimulation Upon Sleep Spindles in Healthy Older Adults
The Effect of Transcranial Direct Current Stimulation Upon Sleep Spindles in Healthy Older Adults: a Pilot Randomised Controlled Study
A good quantity, and quality, of sleep is crucial for well-being. Evidence strongly indicates that poor sleep quality and quantity is causally involved in the development of dementia; therefore, techniques which can improve sleep in older adults are very likely to prevent or slow down the disease process in dementia.
This project aims to manipulate a specific aspect of sleep in healthy older adults. This: 1) has the potential to prevent the pre-dementia stage of mild cognitive impairment in healthy older adults, and 2) has a direct clinical application to dementia. The overall aim of this project is to investigate if a non-invasive brain stimulation technique called transcranial direct current stimulation (tDCS) can enhance specific brain activity patterns during overnight sleep in healthy older adults.
These brain activity patterns during sleep (called 'sleep spindles') are mechanistically linked to both the physiological restorative and the cognitive function of sleep. Sleep spindles can only be assessed by measuring overnight brain activity during sleep. Sleep spindles are very strongly associated with attention, and memory performance, which are severely affected by dementia. A decrease in sleep spindles is associated with cognitive decline, and predict dementia development. Therefore, enhancing sleep spindle activity in sleep is likely to boost cognition.
Whilst previous research studies have demonstrated that in a sleep laboratory environment, tDCS can manipulate sleep spindles when individuals are in a specific brain state in a nap situation, we are specifically interested in testing tDCS in a home environment. This is because the use of tDCS in a home environment has have a number of advantages over sleep laboratory studies. Specifically, by conducting this study in a home environment, this will maximise the inclusivity of studies involving older adults, and DLB patients, since they will not be required to travel to a sleep laboratory to participate in studies.
The aim of this proof-of-principle study is to investigate if tDCS can manipulate sleep spindles in healthy older adults. It is expected that relative to a placebo stimulation, active stimulation (which exerts an effect upon the brain) will increase sleep spindle activity in healthy older adults.
Study Overview
Status
Conditions
Intervention / Treatment
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Locations
-
-
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Newcastle Upon Tyne, United Kingdom
- Northumbria University
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Description
Inclusion Criteria:
• Healthy sleeper older adults aged ≥ 60 years
Exclusion Criteria:
- The presence of self-reported neurodegenerative dementia or other neurological disorders
- Self-reported relevant sleep disorders or disturbances
- Relevant skin allergies
- Concurrent major psychiatric illness
- Significant/severe physical illness or comorbidities
- Metallic or electronic implants
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Basic Science
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Active Comparator: Active transcranial direct current stimulation
|
Participants will experience two repeated 20 minute sessions of tDCS (1.2 mA), with a 10-minute break.
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Placebo Comparator: Placebo transcranial direct current stimulation
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Participants will experience two repeated 20 minute sessions of tDCS (1.2 mA), with a 10-minute break.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Slow sleep spindle density
Time Frame: During night immediately after tDCS administration
|
PSG-measured slow (11.99Hz) sleep spindle density
|
During night immediately after tDCS administration
|
Slow sleep spindle amplitude
Time Frame: During night immediately after tDCS administration
|
PSG-measured slow (11.99Hz) sleep spindle amplitude.
|
During night immediately after tDCS administration
|
Fast sleep spindle density
Time Frame: During night immediately after tDCS administration
|
PSG-measured fast (13-14.99Hz)
sleep spindle density.
|
During night immediately after tDCS administration
|
Fast sleep spindle amplitude
Time Frame: During night immediately after tDCS administration
|
PSG-measured fast (13-14.99Hz)
sleep spindle amplitude.
|
During night immediately after tDCS administration
|
Collaborators and Investigators
Sponsor
Collaborators
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Estimated)
Study Completion (Estimated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- NCSR422
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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