NCT03883217

Brief Summary

The purpose of this research study is to test the safety, tolerability, and the effect of vibration (delivered by an experimental device called PDVibe2) on freezing of gait (FOG) in persons with Parkinson's disease (PD). The PDVibe2 was developed by Resonate Forward, LLC (RF). This PDVibe2 was designed to administer vibration therapy to the wearer to improve gait and balance in persons with PD while wearing the device.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
12

participants targeted

Target at below P25 for not_applicable parkinson-disease

Timeline
Completed

Started Jun 2021

Shorter than P25 for not_applicable parkinson-disease

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

March 18, 2019

Completed
2 days until next milestone

First Posted

Study publicly available on registry

March 20, 2019

Completed
2.3 years until next milestone

Study Start

First participant enrolled

June 29, 2021

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 11, 2022

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

January 11, 2022

Completed
4.2 years until next milestone

Results Posted

Study results publicly available

March 16, 2026

Completed
Last Updated

March 16, 2026

Status Verified

March 1, 2026

Enrollment Period

7 months

First QC Date

March 18, 2019

Results QC Date

November 18, 2024

Last Update Submit

March 12, 2026

Conditions

Keywords

GaitBalance

Outcome Measures

Primary Outcomes (2)

  • Functional Ambulation Profile (FAP) Score

    The Functional Ambulation Profile (FAP) score is the gold standard for spatiotemporal gait parameter analysis. For this study, it will be mean calculated by participants walking on the Zeno walkway, which will measure the patient's physical measurements, step length, step time and degree of symmetry., dynamic base of support and the use of ambulatory aids are factored into the score. The Zeno instrumented walkway (PKMAS) is a 20-foot computerized walkway containing sensor pads. A full FAP (Functional Ambulation Profile) score is calculated by deducting points from a maximum score of 100 and the minimum is a 0, with points being subtracted based on deviations from normal gait patterns observed during a self-selected velocity walking trial; essentially, a higher score (closer to 100) indicates closer to normal gait function while a lower score (closer to 0) represents greater gait impairments. No subscales. This is reported as the mean of the two scores for each session aggregated.

    Throughout study completion, from 9 to 34 days.

  • Movement Disorder Society Unified Parkinson Disease Rating Scale (MDS-UPDRS)

    The "Movement Disorder Society Unified Parkinson Disease Rating Scale" (MDS-UPDRS),will be used to assess the total burden of motor Parkinson Disease (PD) symptoms and impact on activities of daily living. There are four sections to this scale and all sections use a scale of 0-4 ratings: 0 (normal), 1 (slight), 2 (mild), 3 (moderate), and 4 (severe)lower scores are better and indicate less disability. Part II: 13 items about Activities of Daily Living, score range 0-52. Part III: 18 items PD motor signs, score range is 0-72, Each item has 0-4 ratings: 0 (normal), 1 (slight), 2 (mild), 3 (moderate), and 4 (severe). Part IV: 6 items, assesses dyskinesia (excessive motion) and motor fluctuations (medication is working or not), range is 0-24. Parts II-IV total scores. This is reported as the mean of the scores for each session aggregated. The smaller the overall number (closer to 0), the less disability and the greater the number (closer to 148) the greater the disability.

    Throughout study completion, from 9 to 34 days.

Secondary Outcomes (4)

  • Timed Up and Go (TUG) Test

    Throughout study completion, between 9 to 34 days.

  • Berg Balance Scale (BBS)

    Throughout study completion, between 9 to 34 days.

  • New Freezing of Gait Questionnaire (nFOG-Q)

    Throughout study completion, between 9 to 34 days.

  • Fall Efficacy Scale - International

    Throughout study completion, between 9 to 34 days

Study Arms (2)

Vibration first then no vibration

EXPERIMENTAL

A session with PDVibe2 vibration turned on first, followed by (after a 2 week washout period) a session with PDVibe2 vibration turned off. The two arms both get a session with the PDVibe2 vibration turned on and turned off, but the order is reversed depending on the arm.

Device: Vibration SessionDevice: No vibration session

No vibration first then vibration

EXPERIMENTAL

A session with PDVibe2 vibration turned off first, followed by (after a 2 week washout period) a session with PDVibe2 vibration turned on. The two arms both get a session with the PDVibe2 vibration turned on and turned off, but the order is reversed depending on the arm.

Device: Vibration SessionDevice: No vibration session

Interventions

The PDVibe2 is owned by Resonate Forward, LLC and will be loaned to Virginia Commonwealth University (VCU) for this project. The device is non-invasive, lightweight, untethered, contains a rechargeable battery, and is worn on both feet and ankles. PDVibe2 delivers vibration when activated by an easy to access switch on the device or by remote. The internal circuitry has been miniaturized, is encased in a small box, and is attached to the ankle using a soft flexible band.

Also known as: VibeForward (PDVibe2)
No vibration first then vibrationVibration first then no vibration

The PDVibe2 is owned by Resonate Forward, LLC and will be loaned to Virginia Commonwealth University (VCU) for this project. The device is non-invasive, lightweight, untethered, contains a rechargeable battery, and is worn on both feet and ankles. During this session, PDVibe2 delivers no vibration but is still worn. The internal circuitry has been miniaturized, is encased in a small box, and is attached to the ankle using a soft flexible band.

Also known as: VibeForward (PDVibe2)
No vibration first then vibrationVibration first then no vibration

Eligibility Criteria

Age21 Years - 95 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • age 21 years or older
  • PD diagnosed by a movement disorder specialist for 3 months or longer prior to recruitment
  • PD medication regimen is stable over the last 3 months with no changes
  • Hoehn \& Yahr stage 2 (N = 13)
  • able to walk independently or with a simple assistive device (e.g., cane, walker)
  • observed by the research team to have PD related gait disturbance such as FOG, shortened or irregular stride lengths, irregular step cadence, slowed speed while on their regular treatment regimen.

You may not qualify if:

  • diagnosed with a known Parkinson plus syndrome
  • were previously exposed to vibration treatment for gait and balance
  • presence of dementia (Montreal Cognitive Assessment \< 21)
  • additional disorders (not related to PD)impairing gait, stance, balance or coordination (e.g. stroke, leg amputations, or multiple sclerosis)
  • history of implantable cardiac device or any other implanted electronic device except a deep brain stimulator (DBS)
  • use of braces/orthotics that assist with walking
  • are currently in physical therapy (PT) treatment for balance or gait
  • peripheral neuropathy by exam
  • any condition that, in the opinion of the PIs, would compromise participant safety, data integrity, or data interpretation.
  • Children under the age of 18
  • Prisoners
  • Women who are pregnant or may become pregnant during the course of this study since the safety of this device for an unborn child is unknown.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Virginia Commonwealth University

Richmond, Virginia, 23298, United States

Location

MeSH Terms

Conditions

Parkinson Disease

Condition Hierarchy (Ancestors)

Parkinsonian DisordersBasal Ganglia DiseasesBrain DiseasesCentral Nervous System DiseasesNervous System DiseasesMovement DisordersSynucleinopathiesNeurodegenerative Diseases

Results Point of Contact

Title
Ingrid Pretzer-Aboff
Organization
Virginia Commonwealth University

Study Officials

  • Ingrid Pretzer-Aboff, PhD, RN

    Virginia Commonwealth University

    PRINCIPAL INVESTIGATOR
  • Leslie Cloud, MD

    Virginia Commonwealth University Health System

    PRINCIPAL INVESTIGATOR

Publication Agreements

PI is Sponsor Employee
Yes

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
TRIPLE
Who Masked
PARTICIPANT, INVESTIGATOR, OUTCOMES ASSESSOR
Purpose
SUPPORTIVE CARE
Intervention Model
CROSSOVER
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

March 18, 2019

First Posted

March 20, 2019

Study Start

June 29, 2021

Primary Completion

January 11, 2022

Study Completion

January 11, 2022

Last Updated

March 16, 2026

Results First Posted

March 16, 2026

Record last verified: 2026-03

Data Sharing

IPD Sharing
Will not share

Locations