Myomo e100 NeuroRobotic System Home Safety Study


Phase 1 Results N/A

Trial Description

Up to 25 subjects will use the Myomoe100 in the home setting under the distant supervision of an occupational therapist. We will look to see if they can perform functional activities safely without adverse events.

Detailed Description

Hypothesis Subjects can safely use the Myomo e100 NeuroRobotic System in the home.
Primary Outcome Measures:
1. Safety:
1. Safety of the device will be measured by the number of unanticipated or significant device related adverse events reported over a three week period of time. Minor known risks anticipated from device use are mild muscle soreness and fatigue. These will not be considered adverse events.
Secondary objectives & outcome measures:
A series of secondary outcome measures will be taken for the reasons listed below:
• ROM in the affected arm will be taken at the elbow, specifically elbow extension and flexion
- MMT will be taken for the bicep and tricep muscles
- The Chedoke Arm and Hand Activity Inventory (CAHAI) will be administered at the start and end of the study scale to measure changes in functional recovery of the arm and hand. 4 This is a valid, clinically relevant, responsive functional assessment of the recovering paretic upper limb and uses bilateral, real-life items. Successful changes in this test will be defined as a predetermined minimum increase in scores. This inventory will provide two types of information: 1st baseline measures of the severity of the individual's impairment and functional levels. This will help identify which groups of stroke patients are best suited for this product in the home
- Additionally, since the subjects will be practicing specific tasks on the Chedoke via repetitive task practice it is anticipated that there may be a change in the Chedoke scores at the end of four weeks.
- Motor Activity Log, a semi-structured interview for hemiparetic stroke patients will be administered at the study start and end, as well as weekly by the therapist during the weekly visits to assess the use of their paretic arm and hand (amount of use [AOU]) and quality of movement [QOM]) during activities of daily living. It is anticipated that the subject will use the device more each week as the subject is more acquainted with the device and as tasks become easier. 5
- Data will also be captured to determine if subjects are able to be trained to successfully don, doff, and operate the device via passing a competency exam.
- Pain in the shoulder, arm, and hand areas will be assessed on a VAS (0-10) weekly at the therapist visit. It is not anticipated that there will be an increase in arm pain beyond normal muscle soreness related to increase utilization of muscle fibers after several months of inactivity.6
- Skin areas on the affected arm will be examined by the therapist at the weekly visit and noted for redness or skin breakdown.
Subject Population:
Goal: 6 (completers) subjects
(Goal 15 enrolled to accommodate drop outs and those who may not pass the competency exam)
Study Intervention:
Initial training:
Subjects will come to the clinic over a period of 5 days, for up to three, 2 hour sessions each to perform all pre tests, learn how to properly don, operate the device, and to safely perform a series of home activities. The teaching therapist will determine the appropriate device settings for the subject.
During the first session the subject will:
1. Review and sign the informed consent form 2. Perform all pre and post tests under the supervision of a therapist 3. Receive an introduction to the device that will include fitting, basic operation and safety related items to operating the device (i.e.) and simple flexion and extension tasks.
4. The subject will be given a user manual and MAL. He/she will be asked to fill out the MAL so the therapist can get an idea of what the person can do on a daily basis. The subject will be asked to be familiar with the user manual. The subject will return in 2 days.
During the second training session the subject and therapist will:
1. Review donning and doffing the brace 2. Review turning the device on and off 3. Review safety and the user manual 4. Take a device competency test to ensure the subject is aware of all safety precautions and basic device operation. If they fail they will be allowed to come back to Myomo for up to 4 additional visit in order to provide an opportunity to pass the competency. .
5. Next the therapist will program the device specifically to the subject's level of competency. The subject will be given specific device settings based on their ability to perform the tasks in table 1 which the therapist feels is the most appropriate for the patient. The goal of the setting is to provide the subject with assistance with the activities.
6. The subject will be instructed in how to fill out the home user log. 7. The subject will be provided with the therapist's direct number if any questions related to operation arise.
The third through sixth visit will be utilized if the subject requires further instruction and review.
Initial assessments:
On the first training session, the treating therapist will adminster commonly utilized, non invasive, therapeutic outcome measures. These measures will include but are not limited to: the subject's range of motion( elbow flexion and extension), manual muscle strength in the bicep and tricep, functional measures such as: Chedoke Arm and Hand Activity Inventory (CAHAI), the Motor Activity Log (MAL) and affected arm pain assessment using the Visual Ananlog Scale.(VAS)
Assigned treatment tasks:
During 15 sessions, over a period of three weeks, the subjects will then be asked to perform tasks at home with the device on. The subjects will be asked to perform these tasks at home for approximately one hour each session. The frequency of sessions will be: 5 times per week..
After a brief stretching and warm up period, each subject will be asked to perform muscular re-education and ROM activities. A sample of possible activities put together by a panel of expert therapists can be found in table 1.
Table 1.
# Task Device mode to be used Number of Sets/Reps
1. Bend and straighten the elbow while seated (bicep/tricep mode) 3sets/10 reps
2. Straighten the elbow and hold 10 seconds while seated (tricep mode) 3 sets/10 reps
3. Wall Push Ups/Seated or standing (tricep mode) 3 sets/10 reps
4. Bicep curls with a rolling pin (bicep mode) 3 sets/10 reps
5. Pick up a box from various heights (bicep mode) 3 sets/10 reps
6. Place container on table (focus on straightening the arm) (tricep mode) 3 stes/10 reps
7. Steady oneself on a counter top while standing x 20 seconds (tricep mode) 3 sets/10 reps
8. Carry an object in hand from place to place (bicep mode) 3 sets/10 reps
9. Toss a ball (overhand or underhand) (bicep mode/tricep mode) 3 sets/10 reps
10. Pick up tooth-brush and brush teeth (bicep mode) 3 sets/10 reps
11. Pick up glass (bicep mode) 3 sets/10 reps
The therapist will provide the patient with a work sheet that lists the exercises chosen from the list above, the mode and settings for the device and the number of sets and reps that should be performed.
Then, after each session the subject will be asked to complete a simple log that tracks compliance.
If any type of injury occurs when using the device it will be reported by the subject immediately to the therapist or PI via phone. The incident will be thoroughly documented using guidelines set in place by the New England IRB.
Weekly therapist visit The patient will return to the research laboratory once a week at Myomo,Inc. The therapist will then review the home use journal with the subject and confirm if no adverse events were reported that none occurred.
Final study visit:
The last study visit will include post evaluation report. The research therapist will take ROM, MMT measurements, administer the MAL,the CAHAI and the VAS for pain. Finally, a simple questionnaire about the ease of use of the device and satisfaction with use. Any adverse events since the last visit will be recorded.
Physician visit:
Any patient who reports upper limb pain, rash, joint swelling, skin changes or skin injury or any other condition associated with use of the device will be directly referred to their treating physician by the PI or study therapist via phone and a follow up letter.
Adverse Event:
An Adverse Event is defined as any injury sustained by the subject during the study visits. Examples of occurrences that would be considered Adverse Events include but are not limited to:
- Bruising of arm soft tissue
- Spasms
- Shoulder pain
All Adverse Events must be noted in the CRF by marking the Adverse Event check box and then providing a detailed description of the Adverse Event in the notes section of the form. In addition to the standard information captured in the CRF, the notes on the Adverse Event should include information about the specific activity (functional, exercise, or otherwise) that the subject was engaged with at the time of the event, as well any relevant circumstances surrounding the event. Any adverse event must be reviewed by the entire study staff. The adverse event must be reported to the NEIRB in a timely manner and not more than 72 hours after the event.
Serious adverse events must be reported to the NEIRB as soon as possible, but not more than 24 hours after the event.



  • Myomo e100 Device
    Other Names: myomo e100; neurorobotic system
    Intervention Desc: use of the myomo e100 in home
    ARM 1: Kind: Experimental
    Label: 1
    Description: observational

Trial Design

  • Masking: Open Label
  • Purpose: Supportive Care
  • Endpoint: Safety Study
  • Intervention: Single Group Assignment


Type Measure Time Frame Safety Issue
Primary No reported adverse events 3 weeks of home use Yes