- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03074812
Exploring Mechanisms for Neuropsychiatric Symptoms of Parkinson Disease Using Transcranial Direct Current Stimulation
March 20, 2024 updated by: Johns Hopkins University
This study evaluates the effect of transcranial direct current stimulation (tDCS) on non-motor symptoms of Parkinson's disease, including depression and cognitive symptoms.
Participants are randomized to receive active or sham tDCS for 30 minutes over 10 treatment sessions.
Study Overview
Status
Recruiting
Intervention / Treatment
Study Type
Interventional
Enrollment (Estimated)
80
Phase
- Not Applicable
Contacts and Locations
This section provides the contact details for those conducting the study, and information on where this study is being conducted.
Study Contact
- Name: Yousef Salimpour, Ph.D.
- Phone Number: 410-502-2666
- Email: ysalimp1@jhmi.edu
Study Contact Backup
- Name: Kelly Mills, M.D.
- Phone Number: 4 410-502-0133
- Email: kmills16@jhmi.edu
Study Locations
-
-
Maryland
-
Baltimore, Maryland, United States, 21287
- Recruiting
- Johns Hopkins Hospital / Johns Hopkins University
-
Contact:
- Yousef Salimpour, Ph.D.
- Phone Number: 410-502-2666
- Email: ysalimp1@jhmi.edu
-
Contact:
- Kelly Mills, M.D.
- Phone Number: 4 410-502-0133
- Email: kmills16@jhmi.edu
-
-
Participation Criteria
Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.
Eligibility Criteria
Ages Eligible for Study
18 years to 95 years (Adult, Older Adult)
Accepts Healthy Volunteers
No
Description
Inclusion Criteria:
- Abel to provide written informed consent is obtained in the English language
- Age 18 to 95 years old
- Movement Disorder Society Clinical Diagnostic Criteria for probable idiopathic Parkinson disease
- Report disabling depressive or neuropsychiatric symptoms prior to study entry
- Capacity to understand the nature of the study;
Exclusion Criteria:
- Known structural brain disease such as a neoplasm, abscess etc.
- Pre-existing skull / scalp defects that would impede standardized electrode placement
- Current electronic or metal implants
- Diagnosis of Bipolar Disorder, Post-Traumatic Stress Disorder, a Psychotic Disorder or any other non-unipolar depressive disorder as a principal diagnosis in the 6 months prior to screening;
- Concurrent treatment with medication which may affect tDCS (benzodiazepines, anticonvulsants, dextromethorphan and pseudoephedrine)
- Endorse active suicidal ideation at enrollment or during any study visit, or have attempted suicide in the six months prior to screening;
- History of substance abuse or dependence in the 2 months prior to screening;
- Considered to be at significant risk of committing homicide;
- Unstable medical condition;
- Score less than 22 on the Montreal Cognitive Assessment (MoCA)
- Women of childbearing potential who are pregnant or are considering becoming pregnant during the length of the study;
- There has been a change in their depression or psychotherapy treatment regimen in the 2 weeks preceding screening;
Study Plan
This section provides details of the study plan, including how the study is designed and what the study is measuring.
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Parallel Assignment
- Masking: Double
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Sham Comparator: Sham tDCS
Sham transcranial direct current stimulation where current will be reduced to zero after standardized ramp up to 2 mA
|
Transcranial direct current stimulation (tDCS) is a commonly used non-invasive form of brain stimulation for studying motor functions in health and disease [36].
It involves the attachment of surface electrodes to the scalp through which very small electric currents (1 or 2mA) are applied via a current regulated device.
The currents do not produce any sensation.
The applied current affects excitability of underlying neural tissue.
Other Names:
|
Experimental: Active tDCS
Transcranial direct current stimulation according to protocol maintained for 30 minutes after ramping up to 2 mA
|
Transcranial direct current stimulation (tDCS) is a commonly used non-invasive form of brain stimulation for studying motor functions in health and disease [36].
It involves the attachment of surface electrodes to the scalp through which very small electric currents (1 or 2mA) are applied via a current regulated device.
The currents do not produce any sensation.
The applied current affects excitability of underlying neural tissue.
Other Names:
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Number of Participants Demonstrating improvements on Objective Rating Scales of Depression via structured interview
Time Frame: 1 months
|
Primary outcome measure will be the number of participants who demonstrate remission of depressive symptoms OR improvement of 50% (i.e.
response) on the Montgomery-Asberg Scale of Depression (MADRS)
|
1 months
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Apathy Scores as measure by a self-report scale (the Apathy Scale)
Time Frame: 1 months
|
The dimensional degree of change in Apathy symptoms as assessed via the Apathy Scale, a subjective self-report tool of apathetic symptoms
|
1 months
|
Subjective Depression Severity rated via self-report on depression inventory
Time Frame: 1 months
|
Subjective severity of depression as measured via self-reported Beck Depression Inventory - II
|
1 months
|
Subjective reactive to pleasure (i.e. improvement of anhedonia) as rated via self-report
Time Frame: 1 month
|
Monitoring degree of change of hedonic-tone scores via the Snaith-Hamilton Pleasure Scale (SHAPS)
|
1 month
|
Subjective improvement of Anxiety Symptoms via Rating Scale
Time Frame: 1 month
|
The change in Parkinson Anxiety Scale (PAS) score per person and across sham v. experimental groups.
|
1 month
|
Performance on abbreviated cognitive battery
Time Frame: 1 month
|
Objective improvement on measures of attention, verbal fluency, working memory and recall by various bedside cognitive tests
|
1 month
|
Improvement of Parkinsonian Motor Symptoms
Time Frame: 1 month
|
Number of participants between arms and individual improvement of Movement Disorders Society Unified Parkinson Disease Rating Scale Part 3 (MDS-UPDRS Pt3) Score.
|
1 month
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
Investigators
- Principal Investigator: Kelly Mills, M.D., Johns Hopkins University
Study record dates
These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.
Study Major Dates
Study Start
February 1, 2016
Primary Completion (Estimated)
March 31, 2025
Study Completion (Estimated)
March 31, 2026
Study Registration Dates
First Submitted
March 2, 2016
First Submitted That Met QC Criteria
March 3, 2017
First Posted (Actual)
March 9, 2017
Study Record Updates
Last Update Posted (Actual)
March 21, 2024
Last Update Submitted That Met QC Criteria
March 20, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- IRB00087957
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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