ClinicalTrials.gg
Active, not recruitingNCT04798378Updated Apr 9, 2025

NuroSleeve Powered Brace & Stimulation System to Restore Arm Function

An interventional study of Neurosleeve in Neurologic Diseases, Hemiparesis and Quadriplegia, sponsored by Thomas Jefferson University. Active, not recruiting at 2 sites in United States. Open to participants aged 4 Years and older, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-04-09.

Sponsored by Thomas Jefferson University · Not applicable, Interventional, and Supportive care

From the registry’s dates

  • Primary completion was expected by Dec 2025, 11 months ago, but the record still lists the study as active, not recruiting.
  • Registered 10 months after the study started (first participant enrolled Apr 2020, registered Mar 2021).
Phase
Not applicable
Study type
Interventional
Enrollment
20
Allocation
Not applicable
Ages
4 Years and older
Sex
All
01

Study summary

The purpose of this study is to investigate if a person with weakness or paralysis in one or both arms, can use the NuroSleeve combined powered arm brace (orthosis) and muscle stimulation system to help restore movement in one arm sufficient to perform daily activities. This study could lead to the development of a product that could allow people with arm weakness or arm paralysis to use the NuroSleeve and similar devices to improve arm health and independent function.

Read the detailed description

People can develop arm weakness due to stroke and other neurological conditions. Portable powered braces and functional electrical stimulation can help restore functional arm movement in these individuals. Powered braces and muscle stimulation may be triggered by detecting movement or electrical activity of proximal muscles that the person still can control. The overall objective of this study is to establish that children and adults with chronic, stable neurological motor impairment can achieve voluntary control over the NuroSleeve upper extremity orthosis and functional electrical stimulation system, and that they can use this voluntary control to perform functionally beneficial tasks to enhance independence, mental and physical health. While myoelectric prostheses have been studied for decades in children with limb loss, it is necessary to gather pilot data on the use of orthoses with optional electrical stimulation in people with intact yet paralyzed limbs. These adults and children have persistent motor deficits even after intensive physical and occupational therapy. The NuroSleeve and similar devices could help all people who have arm weakness.

02

Conditions studied

  • Neurologic Diseases
  • Hemiparesis
  • Quadriplegia
  • Muscular Dystrophies
  • Arthrogryposis
  • Spinal Cord Injuries
  • Charcot-Marie-Tooth
  • Stroke
  • Weakness of Extremities as Sequela of Stroke
  • Weakness Due to Upper Motor Neuron Dysfunction
  • Amyotrophic Lateral Sclerosis
  • Spinal Muscular Atrophy
  • Arm Paralysis
  • Cerebral Palsy

Keywords

  • Arm weakness, paralysis
  • orthosis
  • functional electrical stimulation
  • brace
03

In context

Nervous System Diseases

757 studies on the registry are indexed under Nervous System Diseases; 218 are open to participants now.

This study's planned enrollment of 20 is below the median of 55 across 495 interventional studies indexed under Nervous System Diseases.

Browse Nervous System Diseases studies →

Lead sponsor

Thomas Jefferson University is the lead sponsor of 393 studies on the registry; 70 are open to participants now.

Of its 45 completed or terminated interventional studies of FDA-regulated products, 21 (47%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
4 Years and older
Sexes eligible
All
Accepts healthy volunteers
Yes

Eligibility criteria

Inclusion Criteria:• Must be 4 years or older

  • Must have weakness in one or both arms such that flexion or extension of the wrist, elbow or shoulder are 3/5 or less on the Manual Muscle Testing Scale
  • The etiology of weakness is due to a neurological disease or injury or orthopedic condition that occurred 6 or more months ago
  • Participant is willing to comply with trial instructions
  • Adult participant is able to provide prior to enrollment in the study, and for children, child is able to provide assent and designated caregiver (parent or guardian) is able to provide informed consent
  • The participant is fluent in English and, if the participant were a child, at least one parent/guardian were fluent in English
  • Medically stable and living at home in the community.
  • No joint contracture, spasticity or other limitations to range of motion in the affected lower limb(s) precluding the operation of a wearable, powered orthotic device on the arm
  • Sufficient sitting balance to sit in a chair
  • No condition (e.g., severe arthritis, central pain) that would interfere with movement of the legs, ability to understand verbal commands and cooperate with test procedures.
  • No condition that would pose a risk to the application of electrical current to the body (e.g., skin conditions or skin breakdown)

Exclusion Criteria:• Visual impairment such that following visually-guided instructions would be challenging even with ordinary corrective lenses

  • Orthopedic conditions of either arm that would affect performance on study
  • Untreated psychiatric or neurologic disturbances that would affect motivation and trial participation
  • Excessive pain in one or both of the arms (> 5 on a 10-point visual analog scale)
  • Excessive spasticity at one or both arms, as defined as a score of > 2 on the Modified Ashworth Spasticity Scale
  • Advice from any of the participant's health providers that upper extremity powered orthotics or electrical stimulation were
  • Presence of an implanted medical device in the body (such as cardiac pacemaker, implanted defibrillator, metallic device)
  • Metal implants or exposed metal in the weak or paralyzed arm
  • Lack of access to internet or wireless coverage to enable telemedicine-guided sessions
  • Any history of seizure or epilepsy (only an exclusion criterion for those seeking to undergo optional transcranial magnetic stimulation)
  • Currently taking the medication bupropion (only an exclusion criterion for those seeking to undergo optional transcranial magnetic stimulation)
  • Any history of prior neurosurgical procedure (only an exclusion criterion for those seeking to undergo optional transcranial magnetic stimulation)
  • Known or suspected skull defect (only an exclusion criterion for those seeking to undergo optional transcranial magnetic stimulation)
  • Any history of alcohol or other substance use
  • Other conditions or circumstances that, in the opinion of the investigators, would preclude safe and/or effective participation, including severe skin conditions, and/or other sequelae that may be contraindicated for using a powered orthotic or using electrical stimulation, as well as personal circumstances
Terms in these criteria, in plain language(2)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

Contraindication

A reason a treatment, test or procedure should not be given to a particular person, such as an allergy, another illness or a medicine they take.

05

Study design

Phase
Not applicable
Primary purpose
Supportive care
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants (estimated)

Study arms

  • Experimental
    Treatment Arm

    Participants will received a customized NuroSleeve and undergo 8 weeks of occupational therapy using the NuroSleeve (135 minutes per week for 8 weeks: this can be done as 45 minutes three times per week, 68 minute sessions twice per week, or one 135 minute once per week).

    Device: Neurosleeve

Interventions

  • DeviceNeurosleeve

    Myoelectric devices for restoration of independent arm function

06

What researchers measure

Primary outcomes

  1. Change in Canadian Occupational Performance Measure score at 8 weeks

    The Canadian Occupational Performance Measure (COPM) is an individualized measure designed for use by occupational therapists to detect self-perceived change in occupational performance problems over time. From Law et al., 2000.

    Time frame: 8 weeks

Secondary outcomes

  1. Change from Baseline Action Research Arm Test (ARAT) score at 8 weeks

    The Action Research Arm Test (ARAT) measures specific changes in the arm function in people who sustained cerebral damage resulting in arm weakness. The ARAT consists of 19 items grouped into four subscales: grasp, grip, pinch and gross movements. Each sub scale has items ordered according to ascending difficulty: 0- can not perform any part of the test, 1- performs the test partialy, 2- completes the test, but takes abnormally long time, 3- performs the test normally. The sum of all subscales are added to compute the total score. The total score ranges between 0 to 57. The higher score is considered to be better outcome. From: Yozbatiran et al. A standardized approach to performing the action research arm test. Neurorehabil. Neural Repair, 2008.

    Time frame: 8 Weeks

Other outcomes

  1. Change from Baseline Motricity Index score at 8 weeks

    The Motricity Index measures strength in the arms and legs after stroke. The weighted score is based on the ordinal 6 point scale of Medical Research Council to measure maximal isometric muscle strength. From: Collin and Wade. Assessing motor impairment after stroke: A pilot reliability study. J. Neurol. Neurosurg. Psychiatry, 1990.

    Time frame: 8 weeks

  2. Change in ABILHAND-Kids questionnaire score at 8 weeks (for participants aged < 18)

    The ABILHAND-Kids questionnaire was developed as a measure of manual ability and explores the most representative inventory of manual activities. The 21 items of ABILHAND-Kids defined a valid and reliable manual ability scale.

    Time frame: 8 weeks

  3. Change in Box and Blocks score at 8 weeks

    The experimented counts how many uniformly sized cubes that can be moved from one half of an opened wooden box, over a partition to the other half of the opened box the participant can move in one minute, This measure reflects dexterity, grasp strength, ability to release, and speed of movement and will be performed while the participant is using the NuroSleeve. From Mathiowetz et al, 1985.

    Time frame: 8 weeks

07

Study locations

2 sites
08

References and documents

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Started Apr 2020 (actual). Primary completion is estimated for Dec 2025, 68 months after the start.

Of 167 non-industry interventional studies with no phase under Nervous System Diseases, half reached primary completion within 28 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 57. This study's planned 68 months is above that.

Counting every sponsor, half of 193 studies reached it within 30 months; a quarter within 11 and three quarters within 57.

Nervous System Diseases covers many different conditions, not one, so the studies compared here vary widely. Read these figures as a rough guide.

How these figures are worked out, and which studies are left out of them.

Registered
Mar 10, 2021
First posted
Mar 15, 2021
StartActual
Apr 16, 2020
Primary completionEst.
Dec 2025
CompletionEst.
Dec 2026
Last update
Apr 9, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 9, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT04798378
Responsible party
Mijail Demian Serruya (Assistant Professor, Thomas Jefferson University) — Principal investigator
First posted
Mar 15, 2021
Start date
Apr 16, 2020
Primary completion
Dec 2025 (estimated)
Completion
Dec 2026 (estimated)
Last update
Apr 9, 2025

Oversight

FDA-regulated drug
No
FDA-regulated device
Yes
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is active, not recruiting, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

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