Gait Disorders in Parkinson's Disease

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

WITHDRAWN

Clinical Phase

EARLY_PHASE1

Study Classification

INTERVENTIONAL

Study Start Date

2018-01-24

Study Completion Date

2018-11-13

Brief Summary

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Background:

Parkinson s disease (PD) is a neurologic disorder that causes slowness, tremor, rigidity, and imbalance. Gait impairment is also common. There are 2 substudies: (1) Physiology of Freezing and Gait; (2) Vibratory Cueing. Healthy participants can join only Substudy 1.

Objective:

To study gait disorders in PD. Also, to test the effect of specific interventions for gait in people with PD.

Eligibility:

People ages 18 and older who:

Have PD with bilateral symptoms but can walk without a cane or walker

Are healthy

Design:

Participants will be screened in Protocols 93-N-0202 and 01-N-0206.

Both substudies include a physical exam and medical history.

Substudy 1:

Participants will have one 6-hour visit. They must wear a tank tops and shorts with tennis shoes during the visit. They will perform gait tasks. Markers placed on the skin will record movements. They will have an EEG: They will wear an electrode cap to record brain waves. They will wear special glasses to record eye movements. Participants with PD will hold their morning dose of PD drugs. They can choose to be admitted to the hospital the previous evening. Otherwise someone else or a taxi must bring them to the visit. They will first perform the study tasks off their drugs. Then they will take their drugs and repeat them.

Substudy 2:

Participants will have one 3-hour visit. A small vibratory device will be attached to their ankle. Reflective markers placed on the skin will record movements while they walk:

Without the device

With the device, but the vibrator off

With the device, with the vibrator on

With a magnet attached to the ankle

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Detailed Description

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The objective of this protocol is to study the physiology of gait disorders in Parkinson s disease as well as to test the effect of non-invasive interventions on gait function in patients with Parkinson s disease. To this end, this protocol will consist of two sub studies:

1. Sub Study 1: Physiology of Freezing of Gait in Parkinson Disease (abbrev: Physiology of FOG)

1. Objective: To explore temporospatial gait parameters and joint kinematic patterns in patients with Parkinson disease and freezing of gait. In addition, tracking of eye movements and EEG patterns will also be studied in patients with Parkinson disease and freezing of gait.
2. Study Population: 15 PD patients with freezing of gait, 15 patients without freezing of gait, 15 age and gender matched healthy volunteers
3. Design: Prospective Exploratory study
4. Outcome Measures: Phase variability and coherence of oscillating axial and appendicular components of gait in patients with PD and freezing of gait, visual gaze fixations and saccades during freezing or freezing-like events and when approaching a variable width doorway, EEG patterns during an episode of freezing of gait or freeze-like event. The study will also aim to look at the difference in the phenomenon of FOG in OFF and ON states.
2. Sub Study 2: Effects of Rhythmic Vibratory Cueing to Improve Step Parameters in Parkinson Disease (abbrev. Vibratory Cueing)

1. Objective: To study changes in gait variables of patients with PD by providing rhythmic vibratory stimuli at the ankle on one limb at preset parameters.
2. Study population: 15 patients diagnosed as having Parkinson s Disease, Hoehn and Yahr stage 2-3.
3. Design: Prospective interventional hypothesis testing study. We will evaluate the effects of rhythmic vibratory cueing on gait variables in PD. The effects of vibratory cueing will be tested compared to baseline gait variables and with the use of a magnet (which will be the open label placebo intervention to account to some extent, for the open label design).

Conditions

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Parkinson's Disease

Study Design

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Intervention Model

PARALLEL

Primary Study Purpose

SUPPORTIVE_CARE

Blinding Strategy

NONE

Study Groups

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PD patients no

PD patients without freezing of gait

Group Type EXPERIMENTAL

Mobile Gait Trainer

Intervention Type DEVICE

standard rolling walker that has a battery operated sensor attached to the side, designed to detect footsteps

Healthy

HV using Mobile Gait Trainer

Group Type PLACEBO_COMPARATOR

Mobile Gait Trainer

Intervention Type DEVICE

standard rolling walker that has a battery operated sensor attached to the side, designed to detect footsteps

PD patients

pd patients using vibratory cueing device

Group Type EXPERIMENTAL

vibratory cueing device

Intervention Type DEVICE

ankle brace with vibrator that provides electric stimulus

PD patients 1

PD patients with freezing of gait

Group Type EXPERIMENTAL

vibratory cueing device

Intervention Type DEVICE

ankle brace with vibrator that provides electric stimulus

Healthy Volunteers

Age and gender matched healthy volunteers.

Group Type EXPERIMENTAL

Mobile Gait Trainer

Intervention Type DEVICE

standard rolling walker that has a battery operated sensor attached to the side, designed to detect footsteps

Interventions

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vibratory cueing device

ankle brace with vibrator that provides electric stimulus

Intervention Type DEVICE

Mobile Gait Trainer

standard rolling walker that has a battery operated sensor attached to the side, designed to detect footsteps

Intervention Type DEVICE

Eligibility Criteria

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Inclusion Criteria

* Age 18 years or older
* Able to provide informed consent
* Clinical diagnosis of Parkinson disease by U.K. Parkinson Society Brain Bank Criteria
* Patients must be stage II -III on the Hoehn and Yahr scale

Exclusion Criteria

* MoCA\<25 within the last 6 months
* Uncontrolled medical condition requiring immediate treatment that would make a walking trial unsafe for the subject.
* Peripheral neuropathy that severely limits gait
* Current or recent orthopedic disorder that severely limits gait
* Current uncontrolled depression or major depressive episode
* Gait disorders other than PD.
* Cannot walk safely without corrective lenses and without support.
* Unable to abstain from PD medications overnight for at least 12 hours before testing
* History of deep brain stimulation surgery
* Subjects who are NINDS employees
* In addition to the preceding criteria, healthy volunteers must also have a normal neurological examination performed within the last year. Healthy volunteers will be healthy subjects without any major medical and neurological or psychiatric disorders established by history and physical/neurological examination. They will also have no gait disorders from any medical or surgical problems as per clinical assessment.

Minimum Eligible Age

18 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

Yes