The Effect of Compensation Strategies on Gait Impairment in Parkinson's Disease
UNITE-PD
Unravelling the Neural Mechanisms Underlying Compensation Strategies for Gait Impairments in Parkinson's Disease: a Transnational, Multimodal Approach
1 other identifier
interventional
384
1 country
1
Brief Summary
Gait disturbances are disabling and common in Parkinson's disease (PD). Patients use many different, and typically self-developed, strategies to compensate for their walking abnormalities. There is a wide variety of compensatory strategies, of which external and internal cueing are the most commonly known. External cueing refers to externally produced predictive stimuli such as a metronome, whereas internal cueing refers to a movement reference generated internally, such as counting while walking. The efficacy of external and internal cueing varies dramatically across patients, and some patients can even be identified as 'non-responders' to a particular cue. Consequently, a one-size-fits-all approach simply does not suffice, which increases the need for better understanding of the key mechanisms behind these compensation strategies. Furthermore, it is still unknown how the efficacy of compensation strategies changes longitudinally. The goal of the UNITE-PD project is to address these questions. The investigators aim to investigate whether the efficacy of internal and external cueing changes over time, and whether it is differentially affected in responders and non-responders. In order to work towards a more personalized treatment for patients with PD, the investigators also aim to identify potential patient characteristics that can mediate the actual use of compensation strategies in daily life. The multicenter UNITE-PD project is divided in a joint package and individual site-specific packages. All partners will investigate the neural working mechanisms of compensation strategies in PD from different angles in the site-specific packages. The joint package focusses on the long-term effect of the compensation strategies and the potential patient characteristics that can influence the efficacy of the compensation strategies. In this project, the investigators will define responders and non-responders to external and/or internal cueing. With the use of extensive clinimetrics, the aim is to identify patient characteristics that might influence the efficacy. With the use of a custom made cueing app (which will be applied during a follow up period of six months), the long-term effect of cueing in the responders can be investigated. Together, all centers aim to include a total of 384 participants (Netherlands N = 104, Belgium N =90, Israel N = 75, Italy N = 115). Importantly, this sample size is not based on the joint workpackage described here, but on the numbers needed for the individual site-specific work packages.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable parkinson-disease
Started Dec 2023
Typical duration for not_applicable parkinson-disease
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
November 16, 2023
CompletedFirst Posted
Study publicly available on registry
November 21, 2023
CompletedStudy Start
First participant enrolled
December 1, 2023
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 1, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 1, 2026
July 25, 2025
March 1, 2025
3 years
November 16, 2023
July 22, 2025
Conditions
Keywords
Outcome Measures
Primary Outcomes (1)
Gait Variability
Gait variability defined as the coefficient of variation of stride time. We will compare gait variability between the baseline condition, and the cueing conditions.
Six months
Secondary Outcomes (1)
Gait speed
Six months
Study Arms (2)
Responders
EXPERIMENTALNon-responders
NO INTERVENTIONInterventions
All participants that are included come to the movement lab for the baseline measurement. The baseline measurement consists out of extensive clinimetrics (for example MDS-UPDRS) to identify patient characteristics. With the use of an objective gait assessment, the effectiveness of both internal and external cueing is determined. This will divide the participants in three groups; responders, non-responders and in between. Participants who clearly respond to either internal or external cueing (determined as the responders) are asked to apply the working form of cueing in daily life during the six-month follow-up. During this period the participants will use a mobile application that can provide them with a rhythmic auditory stimulus and records the use of this application. After 6 months, both the responders and non-responders are asked to return to the lab for the follow up measurement in which the baseline measurement is repeated to evaluate the effect of long-term cueing.
Eligibility Criteria
You may qualify if:
- Men and women of age \> 18 years with idiopathic Parkinson's disease;
- Written informed consent.
You may not qualify if:
- Daily usage of compensation strategies for the past month;
- Presence of deep brain stimulation (DBS);
- Presence of severe co-morbidity limiting ambulation (e.g. stroke, orthopaedic problems);
- Inability to walk unaided (with the exception of a customary cane);
- Inability to walk for \> 3 minutes consecutively;
- Severe auditory impairments, hampering perception of auditory cues;
- Severe cognitive impairment (MMSE \< 21)
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Radboud University Medical Centerlead
- KU Leuvencollaborator
- Tel-Aviv Sourasky Medical Centercollaborator
- Fondazione IRCCS Policlinico San Matteo di Paviacollaborator
Study Sites (1)
Radboudumc
Nijmegen, Netherlands
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- NON RANDOMIZED
- Masking
- NONE
- Purpose
- BASIC SCIENCE
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- SPONSOR
Study Record Dates
First Submitted
November 16, 2023
First Posted
November 21, 2023
Study Start
December 1, 2023
Primary Completion (Estimated)
December 1, 2026
Study Completion (Estimated)
December 1, 2026
Last Updated
July 25, 2025
Record last verified: 2025-03