- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT04221659
Effects of Neuromodulation on Brain Electric Activity of Parkinson's Disease Patients
Effects of Neuromodulation on Brain Electric Activity of Parkinson's Disease Patients: Randomized Controlled Trial
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Study Type
Enrollment (Anticipated)
Phase
- Not Applicable
Contacts and Locations
Study Contact
- Name: Thaísa Carvalho
- Phone Number: +55 83 987772488
- Email: dcthaisa@gmail.com
Study Locations
-
-
PB
-
João Pessoa, PB, Brazil
- Recruiting
- Suellen Marinho Andrade
-
-
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Diagnosis of idiopathic PD, issued by a neurologist specializing in movement disorders;
- Disease staging between I and III, according to the modified Hoehn and Yahr scale;
- Regular antiparkinsonian pharmacological treatment;
- Score higher than 24 or 18 (for participants with low education) in the Mini -Mental State Examination
Healthy Subjects inclusion criteria:
- Ages: 40 - 75 years
- Sex: All
- Subjects who do not have self-report of neurodegenerative disorders
Exclusion Criteria:
- Diagnosis of atypical parkinsonism;
- Neurological comorbidities;
- History of epilepsy, neurosurgery (including metal clip implantation) and pacemaker implantation;
- DBS implantation - deep brain stimulation;
- Patients missing two consecutive protocol sessions.
Healthy Subjects exclusion criteria:
- History of epilepsy;
- Metallic implants in the head;
- Clinical evidence of brain injury.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: TREATMENT
- Allocation: RANDOMIZED
- Interventional Model: PARALLEL
- Masking: QUADRUPLE
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
EXPERIMENTAL: tDCS over M1 and DLPFC
Anodic transcranial direct current stimulation (tDCS) over right primary motor cortex (M1) and left dorsolateral prefrontal cortex (DLPFC).
Duration: 20 minutes; Intensity: 2mA.
|
Participants will receive 16 sessions of Transcranial Direct Current Stimulation (tDCS) for 20 minutes each at 2 mA intensity, on alternate days (3 times a week).
The current will be delivered via saline-embedded sponge surface electrodes using a battery-powered neurostimulator (TCT-Research, Trans Cranial Technologies, Hong Kong).
A small active specific electrode (5x5 cm) will be used to prevent coverage of adjacent areas, resulting in a current density of 0.08 mA / cm².
The cathode, reference electrode (5x7cm), will be positioned in the occipital region.
These parameters are within the safe limits established in previous human studies.
|
EXPERIMENTAL: tDCS over M1 and FPA
Anodic transcranial direct current stimulation (tDCS) over right primary motor cortex (M1) and left frontal polar area (FPA).
Duration: 20 minutes; Intensity: 2mA.
|
Participants will receive 16 sessions of Transcranial Direct Current Stimulation (tDCS) for 20 minutes each at 2 mA intensity, on alternate days (3 times a week).
The current will be delivered via saline-embedded sponge surface electrodes using a battery-powered neurostimulator (TCT-Research, Trans Cranial Technologies, Hong Kong).
A small active specific electrode (5x5 cm) will be used to prevent coverage of adjacent areas, resulting in a current density of 0.08 mA / cm².
The cathode, reference electrode (5x7cm), will be positioned in the occipital region.
These parameters are within the safe limits established in previous human studies.
|
ACTIVE_COMPARATOR: tDCS over M1
Anodic transcranial direct current stimulation (tDCS) over right primary motor cortex (M1).
Duration: 20 minutes; Intensity: 2mA.
|
Participants will receive 16 sessions of Transcranial Direct Current Stimulation (tDCS) for 20 minutes each at 2 mA intensity, on alternate days (3 times a week).
The current will be delivered via saline-embedded sponge surface electrodes using a battery-powered neurostimulator (TCT-Research, Trans Cranial Technologies, Hong Kong).
A small active specific electrode (5x5 cm) will be used to prevent coverage of adjacent areas, resulting in a current density of 0.08 mA / cm².
The cathode, reference electrode (5x7cm), will be positioned in the occipital region.
These parameters are within the safe limits established in previous human studies.
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in EEG microstates
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
For the analysis of the EEG microstates the following temporal parameters will be considered: the average duration of each microstate; its frequency of occurrence; the fraction of the total recording time covered by each; the overall variation explained by each microstate and the probabilities of transition from one microstate to another. The brain electrical activity will be acquired through the BrainVision actiCHamp equipment using 32 Ag / AgCl electrodes that will be fixed according to the International 10-20 System, keeping the impedance below 10kΩ in silent condition and in eyes open states. and eyes closed. The output of the amplifier data will be directed to a computer with BrainVision Pycoder software to record the obtained records and the data will be processed using the BrainVision Analyzer. |
Baseline, after 6 weeks, and after 10 weeks
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Spectral analysis of EEG frequencies
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
Analyze the average of the spectra in the different frequency bands and identify their predominant cortical regions. The brain electrical activity will be acquired through the BrainVision actiCHamp equipment using 32 Ag / AgCl electrodes that will be fixed according to the International 10-20 System, keeping the impedance below 10kΩ in silent condition and in eyes open states. and eyes closed. The output of the amplifier data will be directed to a computer with BrainVision Pycoder software to record the obtained records and the data will be processed using the BrainVision Analyzer. |
Baseline, after 6 weeks, and after 10 weeks
|
Motor aspects of daily life
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
The Unified Parkinson's Disease Assessment Scale - Part II (MDS-UPDRS) will be used to assess the motor experiences of daily life.
|
Baseline, after 6 weeks, and after 10 weeks
|
Stroop test
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
A modified version of the Stroop Test will be used, the Victoria Stroop Test (VST), which uses three conditions: name the color 24 points, 24 neutral words and 24 colorful words printed in incongruous colors.
|
Baseline, after 6 weeks, and after 10 weeks
|
Dual Task
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
Participants will perform single and double task conditions with Timed Up and Go (TUG).
First, only TUG (TUGS) is performed, a single attention task in which the participant will be instructed to get up from a chair, walk at a normal and safe pace for three meters, rotate 180 degrees, come back and sit down.
Then the TUG will be performed simultaneously performing the cognitive task of generating a word list starting with a specific letter, speaking out loud (TUGC), and performing the TUG with the motor task of carrying a glass of water ( TUGM).
|
Baseline, after 6 weeks, and after 10 weeks
|
Verbal Fluency Test
Time Frame: Baseline, after 6 weeks, and after 10 weeks
|
The FAS is a verbal fluency test, in which participants must name as many unique words as possible starting with the letters F, A and S in separate tests, and each condition has a time limit of 60 seconds.
|
Baseline, after 6 weeks, and after 10 weeks
|
Collaborators and Investigators
Sponsor
Study record dates
Study Major Dates
Study Start (ACTUAL)
Primary Completion (ANTICIPATED)
Study Completion (ANTICIPATED)
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
- EEGPark
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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