- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05286736
Neuroplasticity in Parkinson's Disease
March 25, 2024 updated by: University of Minnesota
Plasticity of Motor Systems in Early Stage Parkinson's Disease
The purpose of this project is to increase our understanding of the early state and temporal evolution of neuroplastic changes in the cortex and subthalamic nucleus (STN) of people with PD, and the relationship of these changes to the emergence and expression of PD motor and non-motor signs.
Neurophysiological biomarkers derived from this work may be important for the early detection and prediction of progression of disease.
They can also provide the means to assess the efficacy of interventions designed to prevent or slow disease progression.
Study Overview
Status
Recruiting
Conditions
Intervention / Treatment
Detailed Description
This project will use neuroimaging (7T MRI: structural, diffusion and rest-state functional MRI), from Dr. Noam Harel's protocol IRB# STUDY00008096, and non-invasive brain stimulation (TMS: PAS.
SAI) techniques to quantify structural and functional changes in brain function.
The TMS experiment will use a Magstim Bistimn 2002 transcranial magnetic stimulation (TMS) unit and standard figure-of-eight coil (70 mm diameter) to deliver stimulation on the surface of the scalp.
Stimulation will be delivered using either a single pulse or with a paired-pulse protocol (two stimuli, through the same TMS coil at inter-stimulus intervals of 50 or 80 ms).
All surface EMG signals will be pre-amplified within the sensor and sent wirelessly via blue-tooth connection to a Delsys data collection system.
Quantitative assessments of motor function (gait, gait initiation, reactive balance, bradykinesia, repetitive alternating movements, rigidity, stop-signal reaction time), and neuropsychological function will used to assess behavioral status at baseline and 30-36 months later.
Study Type
Observational
Enrollment (Estimated)
50
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: Colum MacKinnon, PhD
- Phone Number: 612-625-5993
- Email: cmackinn@umn.edu
Study Contact Backup
- Name: Joshua De Kam
- Phone Number: 612-626-8052
- Email: jadekam@umn.edu
Study Locations
-
-
Minnesota
-
Minneapolis, Minnesota, United States, 55455
- Recruiting
- University of Minnesota
-
Contact:
- Joshua De Kam
- Phone Number: 612-626-8052
- Email: jadekam@umn.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
21 years to 75 years (Adult, Older Adult)
Accepts Healthy Volunteers
Yes
Sampling Method
Probability Sample
Study Population
Adults diagnosed with Parkinson's Disease (early diagnosis, currently untreated) and age- and sex-matched healthy controls
Description
Inclusion Criteria:
Participants with PD
- Diagnosis of idiopathic PD, as determined by a movement disorders neurologist in accordance with the PD Society Brain Bank diagnostic criteria
- Not receiving levodopa or dopamine agonist to treat PD (at baseline)
- Able to ambulate independently without the use of an assistive device (e.g. cane) for 50 meters Healthy Controls
- Age- (+/- 3 years) and sex-matched to participants with PD
- Able to ambulate independently without the use of an assistive device (e.g. cane) for 50 meters
Exclusion Criteria:
- Dementia diagnosis and/or a University of California Brief Assessment of Capacity to Consent (UBACC) score and MacCAT-CR score indicating impaired capacity to consent
- History of musculoskeletal disorders that significant affect movement of lower or upper limbs as determined at the time of enrollment
- History of bipolar disorder, post-traumatic stress disorder or major depressive disorder
- Other significant neurological disorders that may affect participation or performance in the study
- Implanted DBS or other neurosurgeries to treat PD
- Pregnancy
Additional exclusion criteria for TMS experiments (note that individuals who are excluded from the TMS experiment still have the opportunity to participate in the other data collection sessions):
- History of seizures, epilepsy, stroke, multiple sclerosis, or traumatic brain injury
- Intracranial metallic or magnetic devices (e.g. cochlear implant, deep brain stimulator)
- Pacemaker or any implanted device
- History of surgery on blood vessels, brain, or heart
- Unexplained, recurring headaches or concussion within the last six months
- Severe hearing impairment
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
- Observational Models: Case-Control
- Time Perspectives: Prospective
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
Early (untreated) Parkinson's Disease
Diagnosis of idiopathic PD, as determined by a movement disorders neurologist in accordance with the PD Society Brain Bank diagnostic criteria.
|
This project will use neuroimaging (7T MRI: structural, diffusion and rest-state functional MRI) and non-invasive brain stimulation (TMS: PAS.
SAI) techniques to quantify structural and functional changes in brain function.
Quantitative assessments of motor function (gait, gait initiation, reactive balance, bradykinesia, repetitive alternating movements, rigidity, stop-signal reaction time), and neuropsychological function
|
Healthy Controls
Age- and sex-matched healthy controls.
|
This project will use neuroimaging (7T MRI: structural, diffusion and rest-state functional MRI) and non-invasive brain stimulation (TMS: PAS.
SAI) techniques to quantify structural and functional changes in brain function.
Quantitative assessments of motor function (gait, gait initiation, reactive balance, bradykinesia, repetitive alternating movements, rigidity, stop-signal reaction time), and neuropsychological function
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in volume of Subthalamic Nucleus
Time Frame: Baseline, 30-36 months
|
The volume of the subthalamic nucleus is assessed using MRI and reported in millimeters cubed (mm^3).
|
Baseline, 30-36 months
|
Change in fractional Anisotropy of Subthalamic Nucleus
Time Frame: Baseline, 30-36 months
|
Fractional anisotropy, measured using MRI, is a unit-less value between zero and one that describes the degree of anisotropy of water diffusion in a specified brain area.
Higher values indicate a greater degree of anisotropy, while a score of zero indicates isotropic diffusion.
|
Baseline, 30-36 months
|
Change in cortico-STN Connectivity
Time Frame: Baseline, 30-36 months
|
Cortico-Subthalamic nucleus connectivity is measured using MRI and reported as a z score (unitless).
|
Baseline, 30-36 months
|
Change in paired Associative Stimulation-Motor Evoked Potential (PAS-MEP)
Time Frame: Baseline, 30-36 months
|
Motor evoked potential is measured as the amplitude of change in target muscle electrical activity following transcranial magnetic stimulation (TMS) and reported in units of millivolts (mV).
|
Baseline, 30-36 months
|
Change in Mattis Dementia Rating Scale 2 (DRS-2)
Time Frame: Baseline, 30-36 months
|
The DRS-2 consists of 24 items, rated on a scale from 0 to 6. Item scores are combined into five subscales: attention (8 items), initiation/perseveration (11 items), construction (6 items), conceptualization ( 6 items), and memory (5 items).
These five subscale scores are summed to calculate a total score ranging from from 0 to 144 points, with lower scores indicating worse performance due to dementia.
|
Baseline, 30-36 months
|
Change in Rey Complex Figure and Matrix Reasoning of the Wechsler Adult Intelligence Scale - IV
Time Frame: Baseline, 30-36 months
|
Baseline, 30-36 months
|
|
Change in Stroop Color Word Test
Time Frame: Baseline, 30-36 months
|
Baseline, 30-36 months
|
|
Change in Wisconsin Card Sorting Test
Time Frame: Baseline, 30-36 months
|
Baseline, 30-36 months
|
|
Change in Delis-Kaplan Executive Function System (D-KEFS) Verbal Fluency Subtest
Time Frame: Baseline, 30-36 months
|
Baseline, 30-36 months
|
|
Change in Brief Visuospatial Memory Test - Revised (BVMT-R)
Time Frame: Baseline, 30-36 months
|
Baseline, 30-36 months
|
Collaborators and Investigators
This is where you will find people and organizations involved with this study.
Sponsor
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 (Actual)
March 1, 2021
Primary Completion (Estimated)
July 9, 2025
Study Completion (Estimated)
November 9, 2028
Study Registration Dates
First Submitted
February 17, 2022
First Submitted That Met QC Criteria
March 17, 2022
First Posted (Actual)
March 18, 2022
Study Record Updates
Last Update Posted (Actual)
March 26, 2024
Last Update Submitted That Met QC Criteria
March 25, 2024
Last Verified
March 1, 2024
More Information
Terms related to this study
Keywords
Additional Relevant MeSH Terms
Other Study ID Numbers
- NEUR-2019-28388
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
No
Studies a U.S. FDA-regulated device product
Yes
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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