Predictors of Motor Progression in Parkinson's Disease

June 4, 2019 updated by: University of Minnesota

Predictors of Progression to Freezing of Gait in Parkinson's Disease

Treatment resistant motor features, such as postural instability and freezing of gait are common in people with Parkinson's disease and major contributors to morbidity and mortality. This project will use sleep studies, quantitative motor assessments and magnetic resonance imaging to examine the relationship between abnormally increased muscle activity during rapid eye movement sleep and the development and progression of treatment-resistant postural instability and gait disturbances. Specifically, the investigators will test the hypothesis that anticipatory postural adjustments (weight and pressure shifts) during gait initiation are significantly reduced in people with Parkinson's disease who have abnormally elevated muscle activity during rapid eye movement (REM) sleep compared to individuals will Parkinson's disease whose REM sleep muscle activity is normal. In addition, the investigators will test the hypothesis that the level of RSWA at baseline is predictive of measures of motor decline (postural stability and gait) and alterations in the structure and function of locomotor brainstem networks. Since sleep disorders can emerge years before a diagnosis of Parkinson's disease, establishment of a link between sleep and treatment-resistant posture and gait disorders will help identify individuals at risk of developing these disabling motor features of disease.

Study Overview

Study Type

Observational

Enrollment (Actual)

72

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Minnesota
      • Minneapolis, Minnesota, United States, 55455
        • University of Minnesota

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

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Parkinson's Disease

Description

Inclusion Criteria:

  1. Diagnosis of idiopathic Parkinson's Disease (PD).
  2. Age 21-75 years
  3. Able to ambulate independently without the use of an assistive device (e.g. cane)

Exclusion Criteria:

  1. History of Dementia
  2. History of musculoskeletal disorders that adversely affects walking and/or balance
  3. Other significant neurological disorders
  4. Implanted deep brain stimulator(s) (DBS) or other neurosurgeries to treat PD
  5. MRI exclusion for 7 tesla scans: presence of any metallic clips or implantable medical devices
  6. Pregnant women

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: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Parkinson's Disease participants
People with early Parkinson's disease with mild-to-moderate severity of disease.
Participants will be asked to visit the University for 3 baseline visits which include a screening visit & sleep study, movement tests and magnetic resonance imaging (MRI) scans. Three years later the participant will be asked to repeat the same visits.
Control participants
Volunteers who are age (+/- 3 years) and sex matched to the participants with Parkinson's disease
Participants will be asked to visit the University for 3 baseline visits which include a screening visit & sleep study, movement tests and magnetic resonance imaging (MRI) scans. Three years later the participant will be asked to repeat the same visits.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Magnitude of the center of pressure shift during gait initiation.
Time Frame: Measured at baseline (time 0).
The magnitude of the center of pressure shift during gait initiation is calculated as the displacement of the center of pressure signal from quiet standing (baseline) to the peak lateral and posterior excursion during the anticipatory postural adjustment phase of gait initiation.
Measured at baseline (time 0).
Correlation between measures of REM sleep without atonia (RSWA) at baseline and change in the magnitude of the center of pressure shift during gait initiation over the course of 3 years.
Time Frame: Change in magnitude over the course of 3 years
A linear correlation analysis will be conducted between measures of RSWA at baseline versus the change in shift of the center of pressure during gait initiation between baseline and year 3.
Change in magnitude over the course of 3 years

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

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)

October 1, 2015

Primary Completion (Actual)

May 31, 2019

Study Completion (Actual)

May 31, 2019

Study Registration Dates

First Submitted

April 27, 2016

First Submitted That Met QC Criteria

May 9, 2016

First Posted (Estimate)

May 11, 2016

Study Record Updates

Last Update Posted (Actual)

June 5, 2019

Last Update Submitted That Met QC Criteria

June 4, 2019

Last Verified

June 1, 2019

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

Undecided

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

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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