Tremor Retrainer Software Application for Functional Tremor

Not Applicable

Recruiting

• Conditions: Functional Movement Disorder; Functional Neurological Symptom Disorder; Functional Neurological Disorder
• Interventions: Device: Tremor Retrainer Smartphone Application

• Registration Number: NCT06257069
• Lead Sponsor: University of Virginia

Brief Summary

The purpose of this clinical trial is to learn about the Tremor Retrainer smartphone application and Simplified Functional Movement Disorder Rating Scale in patients with functional tremor. The main questions the study aims to answer are:

1. Is the Tremor Retrainer application usable for patients and are there signs that it can help functional tremor?

2. Can a televideo administration of the Simplified Functional Movement Disorder Rating Scale give enough information to use this scale via televideo in future studies?

Detailed Description

Following a one-week observation period, 20 subjects will complete the one-week four hour Tremor Retrainer smartphone protocol.

The study will consist of 4 in-person visits over 3-4 months and one televideo visit the same day as study visit 1.

For Objective 1, the investigators will evaluate mHealth Application Usability Questionnaire scores after subjects complete Tremor Retrainer protocol and compare Simplified Functional Movement Disorder Rating Scale (S-FMDRS) scores before (study visit 2) and after (study visits 3 and 4) intervention between groups.

For Objective 2, the investigators will evaluate which components can be scored after televideo administration of S-FMDRS and measure correlation between randomly-ordered sequential in-person and televideo S-FMDRS administration.

For Objective 3, the investigators will measure change and variability in S-FMDRS between study visit 1 and 2. S-FMDRS scoring will be completed via video review by a movement disorder neurologist blinded to timing of visit relative to treatment.

Study Timeline

• Study Start: 2024-01-17
• Study First Submitted: 2024-02-05
• Study First Submitted QC: 2024-02-05
• Study First Posted: 2024-02-13
• Status Verified: 2024-04
• Last Update Submitted: 2024-04-08
• Last Update Posted: 2024-04-10
• Primary Completion: 2025-10-31
• Study Completion: 2026-01-17

Recruitment & Eligibility

• Status: RECRUITING
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

1. Age 10 years and older, any gender, any race
2. Functional tremor as defined by Espay and Lang25, diagnosed by a movement disorders neurologist, involving at least 1 arm and ongoing at time of enrollment.
3. Access to internet and a laptop or tablet with a videocamera.
4. Informed consent obtained and signed
5. Subject understands study procedures and is able to comply with study procedures for duration of study

Exclusion Criteria

1. Parkinson's disease, essential tremor, or other disorders causing involuntary movements in addition to functional tremor
2. Cognitive impairment with previously diagnosed intellectual disability (IQ<70) or dementia
3. Hearing impairment not addressed by hearing aids
4. Prior enrollment in clinical trial involving the Tremor Retrainer application

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: SINGLE_GROUP

Arm && Interventions

Group	Intervention	Description
Intervention Arm	Tremor Retrainer Smartphone Application	All subjects will receive intervention with Tremor Retrainer smartphone application

Primary Outcome Measures

Name	Time	Method
mHealth Application Usability Questionnaire	Study visit 3	Usability Questionnaire. Score range: 21-147 with higher scores indicating better usability
Simplified Functional Movement Disorder Rating Scale	Study visits 1-4	Videorecorded severity scale. Score range: 0-54 with higher scores indicating greater severity (worse movements)

Trial Locations

Locations (1)

University of Virginia; 🇺🇸 Charlottesville, Virginia, United States