- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT06324448
Self-administered tDCS for Improving Single- and Dual-task Gait in Patients With PD
Self-administered Transcranial Direct Current Stimulation for Improving Single- and Dual-task Gait in Patients With Idiopathic Parkinson's Disease: A Prospective, Single-center, Double-blind, Exploratory, Randomized Controlled Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Parkinson's disease (PD) is a disease caused by dopamine deficiency in the striatum resulting from the loss of dopaminergic neuronal cells in the cerebral substantia. It is a progressive neurodegenerative disease characterized by motor symptoms including gait disturbance and balance instability. In the early stages of Parkinson's disease, dysfunction of the sensorimotor area of the basal ganglia typically occurs, leading to habitual control hurdles. Accordingly, cognitive efforts are required to perform habitual tasks such as walking, and the automaticity of walking is reduced. Dual-task performance involves a complex interplay of motor functions as well as cognitive functions such as attention and executive function. One way to potentially reduce the cost of dual-tasking and the negative effects of motor-cognitive interference is to consider improving the corresponding component, i.e., motor or cognitive function.
Transcranial direct current stimulation (tDCS) is a non-invasive brain stimulation method that can be used to change cortical activity. Recently, there has been growing attention on tDCS as an adjunct tool for rehabilitation. Several tDCS studies in patients with PD have reported the positive results of tDCS on motor and cognitive function. Most studies have examined changes before and after a single session of stimulation, with limited research verifying the cumulative and long-term effects of tDCS. Therefore, this study aims to investigate the efficacy and safety of self-administered transcranial direct current stimulation to improve the single- and dual-task gait in patients with PD.
Study Type
Enrollment (Estimated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Han Gil Seo, PhD
- Phone Number: 82-2-2072-1659
- Email: hgseo80@gmail.com
Study Contact Backup
- Name: Seo Jung Yun, MS
- Phone Number: 82-2-2072-1659
- Email: seojungyun@snu.ac.kr
Study Locations
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Seoul, Korea, Republic of, 03080
- Recruiting
- Seoul National University Hospital
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Contact:
- Han Gil Seo, MD
- Phone Number: 82-2-2072-1659
- Email: hgseo80@gmail.com
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
- Adult
- Older Adult
Accepts Healthy Volunteers
Description
Inclusion Criteria:
- Clinically diagnosed as idiopathic Parkinson's disease by neurologists according to the UK Parkinson's Disease Society Brain Bank criteria
- modified Hoehn & Yahr stage 2, 2.5, or 3
Exclusion Criteria:
- History of seizure
- Metallic implants, such as cardiac pacemaker or an artificial cochlea
- Patients with inflammation, burns, or wounds in the stimulation area
- Parkinson's disease dementia; cut-off is < 7 of Korean-Montreal Cognitive Assessment for illiterate patients, < 13 for those educated for 0.5-3 years, < 16 for 4-6 years of education, < 19 for 7-9 years of education, and < 20 for 10 or more years of education.
- Severe dyskinesia or severe on-off phenomenon
- Plan to adjust medication at the time of screening
- Other neurological, orthopedic, or cardiovascular co-morbidities significantly affecting gait function
- Uncontrolled vestibular disease, orthopedic hypotension, or paroxysmal vertigo
- Pregnant or lactating patients
- Other comorbidities that make it difficult to participate in this study
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Triple
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Primary motor cortex
The anodal electrode is positioned in the primary motor cortex (Cz) and the cathodal electrode on the right orbital frontal cortex (Fp2).
The current increases to 2.0 mA over a period of 30 seconds, maintains 2.0 mA for 19 minutes, and decreases to 0 mA over 30 seconds.
|
tDCS self-administered at home once a day for 28 consecutive days for a total of 28 sessions (one session consists of 20 minutes through two saline-soaked sponge electrodes (diameter 6cm) using the YMS-201B (Ybrain Inc, South Korea)).
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Experimental: Left dorsolateral prefrontal cortex
The anodal electrode is positioned in the left dorsolateral prefrontal cortex (F3) and the cathodal electrode on the right orbital frontal cortex (Fp2).
The current increases to 2.0 mA over a period of 30 seconds, maintains 2.0 mA for 19 minutes, and decreases to 0 mA over 30 seconds.
|
tDCS self-administered at home once a day for 28 consecutive days for a total of 28 sessions (one session consists of 20 minutes through two saline-soaked sponge electrodes (diameter 6cm) using the YMS-201B (Ybrain Inc, South Korea)).
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Time Frame |
---|---|
Timed-up and go test (sec)
Time Frame: Immediate post-intervention
|
Immediate post-intervention
|
Timed-up and go test under dual-task condition (sec)
Time Frame: Immediate post-intervention
|
Immediate post-intervention
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Dual-task effect (%) in Timed-up and go test
Time Frame: Immediate post-intervention
|
Percentage of dual-task effect calculated by the difference between dual-task and single-task performance [Percentage of dual-task interference=(Dual-task performance - Single-task performance)/Single-task performance]
|
Immediate post-intervention
|
modified Attention Allocation Index (mAAI) in Timed-up and go test
Time Frame: Immediate post-intervention
|
modified Attention Allocation Index (mAAI)=motor dual task effect(mDTE)-cognitive dual task effect (cogDTE)
|
Immediate post-intervention
|
Single-leg stance test
Time Frame: Immediate post-intervention
|
Immediate post-intervention
|
|
Timed-up and go test (sec)
Time Frame: Follow-up (1 month)
|
Follow-up (1 month)
|
|
Timed-up and go test under dual-task condition (sec)
Time Frame: Follow-up (1 month)
|
Follow-up (1 month)
|
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Dual-task effect (%) in Timed-up and go test
Time Frame: Follow-up (1 month)
|
Percentage of dual-task effect calculated by the difference between dual-task and single-task performance [Percentage of dual-task interference=(Dual-task performance - Single-task performance)/Single-task performance]
|
Follow-up (1 month)
|
modified Attention Allocation Index (mAAI) in Timed-up and go test
Time Frame: Follow-up (1 month)
|
modified Attention Allocation Index (mAAI)=motor dual task effect(mDTE)-cognitive dual task effect (cogDTE)
|
Follow-up (1 month)
|
Single-leg stance test
Time Frame: Follow-up (1 month)
|
Follow-up (1 month)
|
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Gait parameters
Time Frame: Immediate post-intervention
|
Symmetric temporospatial parameters, Normal cadence, Decreased & intolerable walking velocity, Normal step length differential, Normal step length on both sides, Normal stride length on both sides, Normal swing phase & stance phase on both sides, Normal single support time & double support time on both sides, Slightly widened base of support on both sides, Increased foot angle on right side
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Immediate post-intervention
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Stroop test
Time Frame: Immediate post-intervention
|
The Stroop test evaluates attention, executive function, processing speed, and cognitive flexibility regarding an individual's ability to inhibit the habitual response.
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Immediate post-intervention
|
Trail making test
Time Frame: Immediate post-intervention
|
The trail-making test is a neuropsychological measure that assesses psychomotor speed, attention, sequencing, mental flexibility, and visual scanning.
|
Immediate post-intervention
|
New freezing of gait questionnaire (NFoGQ)
Time Frame: Immediate post-intervention
|
NFoGQ consists of 6 items.
Total score ranges from 0 to 24. the higher scores, the more negative results.
|
Immediate post-intervention
|
Geriatric depression scale (GDS)-short form
Time Frame: Immediate post-intervention
|
The GDS Short Form contains 15 items.
The higher the score, the more negative the result.
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Immediate post-intervention
|
Gait parameters
Time Frame: Follow-up (1 month)
|
Symmetric temporospatial parameters, Normal cadence, Decreased & intolerable walking velocity, Normal step length differential, Normal step length on both sides, Normal stride length on both sides, Normal swing phase & stance phase on both sides, Normal single support time & double support time on both sides, Slightly widened base of support on both sides, Increased foot angle on right side
|
Follow-up (1 month)
|
Stroop test
Time Frame: Follow-up (1 month)
|
The Stroop test evaluates attention, executive function, processing speed, and cognitive flexibility regarding an individual's ability to inhibit the habitual response.
|
Follow-up (1 month)
|
Trail making test
Time Frame: Follow-up (1 month)
|
The trail-making test is a neuropsychological measure that assesses psychomotor speed, attention, sequencing, mental flexibility, and visual scanning.
|
Follow-up (1 month)
|
New freezing of gait questionnaire (NFoGQ)
Time Frame: Follow-up (1 month)
|
NFoGQ consists of 6 items.
Total score ranges from 0 to 24. the higher scores, the more negative results.
|
Follow-up (1 month)
|
Geriatric depression scale (GDS)-short form
Time Frame: Follow-up (1 month)
|
The GDS Short Form contains 15 items.
The higher the score, the more negative the result.
|
Follow-up (1 month)
|
Collaborators and Investigators
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
Additional Relevant MeSH Terms
Other Study ID Numbers
- PD-tDCS-RCT
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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