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A Study of Wearable Device in Essential Tremor Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT05976074
Recruitment Status : Enrolling by invitation
First Posted : August 4, 2023
Last Update Posted : August 4, 2023
Information provided by (Responsible Party):
Bryan T. Klassen, M.D., Mayo Clinic

Brief Summary:
The purpose of this research is to observe the daily loss of benefit from DBS therapy by performing a standardized set of tasks throughout the day while wearing an Apple Watch to collect movement and other physiological data.

Condition or disease Intervention/treatment Phase
Essential Tremor Device: Apple Watch Other: BrainRISE app Not Applicable

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Study Type : Interventional  (Clinical Trial)
Estimated Enrollment : 50 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Prospective Feasibility Study Evaluating the Use of Wearable Devices to Quantify Tolerance to Deep Brain Stimulation in Essential Tremor Patients
Actual Study Start Date : July 7, 2023
Estimated Primary Completion Date : August 2024
Estimated Study Completion Date : August 2024

Resource links provided by the National Library of Medicine

Arm Intervention/treatment
Experimental: Wearable device for tremor assessment
Subjects already implanted with a deep brain stimulation (DBS) system for therapy for essential tremor wear an Apple Watch and complete tremor assessment tasks detailed through the BrainRISE app four times a day for two weeks.
Device: Apple Watch
The smartwatch will collect data including accelerometry, heart rate, activity, move time, exercise time, stand time, steps, walking and running distance, heart rate variability, respiratory rate, six-minute walk, and flights climbed. During sleep, the smartwatch will collect daily nighttime physiologic data such as time in bed, average sleep time, sleep efficiency, wake after sleep onset, nocturnal heart rate, and nocturnal respiratory rate.

Other: BrainRISE app
The app will play a prerecorded video, which will walk participants through tasks which include holding your arms in different postures, repeating different vowel sounds and phrases as prompted, and tracing different patterns on the phone screen. The tasks are video and audio recorded while being completed. Completing the tremor assessment tasks will take about 10 minutes.

Primary Outcome Measures :
  1. Acquire high-quality physiological signal characteristics from movement disorder patients. [ Time Frame: 12 Months ]
    Acquisition of high-quality physiological signals from 50 subjects with movement disorders over the course of two weeks and up to thirty subjects over one day with 90% compliance rate as determined by the number of study tasks completed by participants.

  2. Acquire high-quality physiological tremor signals from movement disorder patients. [ Time Frame: 12 Months ]
    Measured by wrist accelerometry, which tracks the acceleration of the patients' wrists and is reported in m/sec^2 on a scale where 1.0 = 9.8m/s^2.

Secondary Outcome Measures :
  1. Subject feedback [ Time Frame: 12 Months ]
    Subject comfort, compliance, and convenience during the data collection as determined by a post-study assessment asking patients to rate their experience on a scale of 1-5 from hardest and most inconvenient to easiest and least inconvenient.

Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

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Ages Eligible for Study:   18 Years and older   (Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Inclusion Criteria:

  • Patients with well-classified essential tremor, who are already receiving regular DBS therapy at Mayo Clinic for their movement disorder.
  • Ability to understand study procedures and to comply with them for the entire length of the study and use study devices as outlined in protocol.
  • Patient agrees to perform daily tasks in BrainRISE app and consents to the study collecting video and audio recordings during those tasks.
  • Proficient in the use of a smart phone.

Exclusion Criteria:

  • Cognitive or psychiatric condition rendering a patient unable to cooperate with data collection, or to manage and recharge smart watch and tablet computer devices.
  • Presence of open or healing wounds near monitoring sites (infection risk).
  • Inability or unwillingness of individual or legal guardian/representative to give written informed consent.

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT05976074

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United States, Minnesota
Mayo Clinic Minnesota
Rochester, Minnesota, United States, 55905
Sponsors and Collaborators
Mayo Clinic
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Principal Investigator: Bryan Klassen, MD Mayo Clinic
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Responsible Party: Bryan T. Klassen, M.D., Principal Investigator, Mayo Clinic Identifier: NCT05976074    
Other Study ID Numbers: 23-004705
First Posted: August 4, 2023    Key Record Dates
Last Update Posted: August 4, 2023
Last Verified: August 2023
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: Yes
Product Manufactured in and Exported from the U.S.: No
Keywords provided by Bryan T. Klassen, M.D., Mayo Clinic:
Deep Brain Stimulation Therapy
Additional relevant MeSH terms:
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Essential Tremor
Neurologic Manifestations
Nervous System Diseases
Movement Disorders
Central Nervous System Diseases