MedPath

Tackling Anxiety-related Freezing of Gait in People With Parkinson's Disease

Not Applicable
Recruiting
Conditions
Freezing of Gait
Interventions
Other: Psychological intervention
Registration Number
NCT06302309
Lead Sponsor
Radboud University Medical Center
Brief Summary

The purpose of this study is to investigate whether personalized strategies that target anxiety and stress surrounding freezing of gait can alleviate freezing of gait in people with Parkinson's Disease.

Detailed Description

Rationale:

Freezing of Gait (FOG) is a common and disabling symptom in people with Parkinson's Disease (PD), characterized by paroxysmal episodes where there is an inability to step effectively, despite attempting to do so. Treatment consists of complementary pharmacological and non-pharmacological treatment options which unfortunately only partially alleviate FOG. Anxiety has been found to contribute to the occurrence and exacerbation of FOG, which often manifests itself in situations where people with FOG anticipate not being in control of their movements. People with FOG are often aware of the feelings and situations that elicit FOG episodes, but they rarely actively employ strategies targeting their mental state to improve FOG. With the exception of general interventions including mindfulness, yoga and meditation, tailored strategies to ameliorate anxiety-related FOG have never been evaluated in a systematic manner.

Objective:

In this project we aim to evaluate whether a non-pharmacological and tailored intervention targeting anxiety- and stress-related FOG in people with PD is effective to reduce the impact of anxiety and stress on FOG. Specifically, we aim to study: (1) the effect of four sessions of a 'managing the mental state' intervention in people with disabling and anxiety-related FOG; and (2) the key determinants of the effectiveness of the intervention to reduce the impact of anxiety and stress on FOG.

Study design:

This study is a randomized controlled trial (RCT). The intervention group will receive the intervention immediately after randomization while a (waitlist) control group receives the same intervention thereafter.

Study population:

Forty people with PD that experience daily FOG (as objectified with the new-freezing of gait questionnaire) will be included, that is related to anxiety (positive answer to the question: Does FOG occur or get worse when you are anxious or stressed?).

Intervention:

The intervention consists of four sessions of a 'managing the mental state' intervention, of which the first and second session will take place in the home-setting of the patient; the two remaining sessions will take place remotely. The sessions include psychoeducation on what anxiety is and how stress and anxiety can influence FOG, identifying how people are allocating attention and engage in specific thought-processes (e.g. worrisome thoughts) during walking, and educating patients about 'managing the mental state' compensation strategies that involve ways to reduce anxiety or stress and will be specifically tailored to the individual patient.

Main study parameters/endpoints:

The primary outcome involves the percentage of time frozen during a home-based gait trajectory with self-selected FOG 'hotspots'. Secondary outcomes involve the subjective impact of anxiety and stress on FOG, as measured with a Visual Analogue Scale and the perceived levels of anxiety.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
40
Inclusion Criteria

Men/women of age > 18 years with idiopathic Parkinson's disease, as diagnosed by the UK Brain Bank Criteria;

  • Presence of daily FOG (as objectified with the new-freezing of gait questionnaire), that is related to anxiety (positive answer to the question: Does FOG occur -or get worse when you are anxious or stressed?);
  • Using a stable dose of PD medication and stability of DBS settings (if applicable) during the trial. Adjustments of PD medication and DBS settings during the trial are allowed if deemed clinically necessary.
  • Written informed consent.
Exclusion Criteria
  • Any comorbidity (i.e. neurological, orthopedic) that significantly impacts gait.

    • Severe cognitive impairment hampering the ability to comply to the study protocol.

Study & Design

Study Type
INTERVENTIONAL
Study Design
CROSSOVER
Arm && Interventions
GroupInterventionDescription
WaitlistPsychological interventionThe control group will enter a waiting period of 4 weeks and receive the same 4-week intervention thereafter.
InterventionPsychological interventionThe intervention group will receive 4 sessions of the 'managing the mental state' intervention immediately after randomization.
Primary Outcome Measures
NameTimeMethod
% time frozen during a personalized gait trajectoryBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The primary outcome measure involves the percentage of time frozen during a personalized walking trajectory that includes self-selected FOG 'hotspots' in the home setting. This gait trajectory will be exactly the same during the baseline and consecutive measurements, and will be performed at comfortable gait speed. The gait trajectory will be video-taped by the assessor and performed three times during each visit.

Secondary Outcome Measures
NameTimeMethod
Heart Rate VariabilityBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

Heart rate variability (HRV) will be measured to determine whether the gait measures induce physiological stress and to examine if the intervention leads to a reduction in physiological stress. For this purpose, we will collect 3-lead electrocardiogram signals for heart rate monitoring prior to and during the gait measures

Gait-Specific Attention ProfileBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Gait-specific attentional profile (G-SAP) provides measurements of multiple psychological factors that influence gait performance. The G-SAP will be administered in order to determine whether psychological factors that are implicated in gait performance (e.g., conscious processing of movement, fall-related ruminations) are changed in response to the intervention

New Freezing of Gait QuestionnaireBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The New-Freezing of Gait Questionnaire (N-FOGQ) assesses the subjective severity of Freezing of Gait.

The Parkinson Anxiety Scale (PAS)Baseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Parkinson Anxiety Scale (PAS) \[9\] is a questionnaire that has been specifically developed for measuring anxiety in people with PD.

he Updated Perceived Control over Falling Scale (UP-COF)Baseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Updated Perceived Control over Falling Scale (UP-COF) is a 4-item scale that will be administered to assess whether the intervention improves participants' perceived control over the risk of falling.

The Parkinson's Disease QuestionnaireBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Parkinson's Disease Questionnaire (PDQ-39) will be administered to measure quality of life.

subjective impact of anxiety and stress on FOG, as measured with a Visual Analogue ScaleBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

subjective impact of anxiety and stress on FOG, as measured with a Visual Analogue Scale

The Rosenberg self-esteem scoreBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Rosenberg self-esteem score will be administered in order to assess self-esteem.

Perceived Stress ScaleBaseline, week after the intervention has ended (5 weeks from baseline) and 10 week follow-up (15 weeks from baseline)

The Perceived Stress Scale will be administered in order to determine whether the intervention leads to a decrease in perceived levels of stress.

Trial Locations

Locations (1)

Department of Rehabilitation Radboudumc

🇳🇱

Nijmegen, Gelderland, Netherlands

© Copyright 2025. All Rights Reserved by MedPath