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NCT05843656: E-ConS

Enhancing Sleep Dependent Consolidation by Non-invasive Brain Stimulation

Completed NA Last updated 6 May 2023
What this trial tests

NA trial testing Non-invasive brain stimulation in Stroke in 62 participants. Completed in 19 March 2022.

Timeline
20 March 2019
Primary endpoint
18 January 2022
19 March 2022

Quick facts

Lead sponsorFriedhelm Hummel
PhaseNA
StatusCompleted
Study typeINTERVENTIONAL
Allocationrandomized
Designparallel
Maskingtriple
Primary purposebasic science
Enrollment62
Start date20 March 2019
Primary completion18 January 2022
Estimated completion19 March 2022
Sites1 location across Switzerland

Drugs / interventions tested

Conditions studied

Sponsor

Friedhelm Hummel

Who can join

18 and older, any sex, with Stroke or Aging. Patients with the condition only — healthy volunteers not accepted.

Sponsor's own description

Stroke, one of the most common causes for acquired adult disability, is not only a burden for the individual but also for his or her close relatives and caregivers. Functional recovery is commonly associated with the re-acquisition of lost skills. This skill (re-)acquisition is separated into different phases during which learning takes place while the skill/movement is actively performed - so called online learning - or during the time of non-performance between the training - so called offline learning or consolidation. During the initial phase of training, performance improvements are commonly steep (online learning). During the following processes of consolidation, which often depend on sleep, memory traces are being modified and stored for long-term memory retention leading to a further improvement without additional training (offline learning). Previous studies focusing on individuals after stroke could show a beneficial effect of sleep on motor skill acquisition. As an intervention, transcranial electrical stimulation (tES) with motor tasks could show beneficial effects on motor skill acquisition. tES is a method to stimulate an area of the brain non-invasively and this is done by applying low voltage current to the scalp that lies in close proximity to the target brain region. In the current study, stimulation is performed during sleep and types of stimulation resemble natural sleep physiology: slow-wave and spindles. As slow-wave and spindles are shown to be important for memory consolidation, it is hypothesized that applying physiologically-inspired stimulation could enhance memory consolidation in individuals after stroke. It is known that patterns of sleep physiology change in older individuals, thus, this population is also investigated in the current study. It is interpreted and discussed that older individuals do not benefit from sleep as much as younger individuals do. Thus, it is hypothesized that applying physiologically-inspired stimulation could enhance memory consolidation in healthy older individuals.

Publications & conference data

No peer-reviewed publications indexed yet for this trial. Completed trials usually publish results within 12-18 months.

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Other trials of Non-invasive brain stimulation

Trials testing the same drug.

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Other Friedhelm Hummel trials

Trials by the same sponsor.

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Data sources for this page

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