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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04964635
Other study ID # RED 10356
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date October 26, 2021
Est. completion date August 31, 2022

Study information

Verified date November 2022
Source Bournemouth University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Functional Electrical Stimulation is an established technique in which small electrical impulses are used to cause a contraction in muscles and thereby enable movement, in people with neurological or musculoskeletal problems who are unable to undertake those movements themselves. People with spinal cord injuries of the neck at C5, C6 and C7 account for 35% of all spinal cord injuries. Despite this, there is only one commercial FES (Functional Electrical Stimulation) based orthosis currently available. Even that has limitations in that it as it has a single size rigid exoskeleton it does not fit all people who could benefit and also due to its rigidity it does not allow people with lower injuries to utilise any remaining tenodesis grip. As a result, it is not widely used within the spinal injured communities. Therefore what is required is a more flexible system that can benefit a larger number of people whilst still being affordable within the constraints of the NHS. A previous INSPIRE funded project, TETRAGRIP I demonstrated that a surface FES system controlled by an inertial sensor, measuring movement of the opposite shoulder, could meet this specification and was successfully tried on two people with tetraplegia. What is now required is a more detailed study in which the principle components of that system are incorporated into a practical device suitable for use at home without clinical supervision. It is therefore proposed to develop and build such a system and to conduct extended home based trials in three people with tetraplegia.


Recruitment information / eligibility

Status Completed
Enrollment 4
Est. completion date August 31, 2022
Est. primary completion date August 31, 2022
Accepts healthy volunteers No
Gender All
Age group 18 Years to 90 Years
Eligibility Inclusion Criteria: - Have a spinal cord injury that has resulted in tetraplegia affecting hand function. - Minimal spasticity of wrist muscle. - Able to do shoulder elevation. - Upper limb passive range of motion should be within normal limit. - Age group: 18 years and above. - Able to understand and comply with assessment procedures. - Able to give informed consent. - Able to produce a muscle contraction using electrical stimulation in sufficient muscles produce a functional grip. Exclusion Criteria: - Using a cardiac pacemaker, defibrillator or other sensitive implanted device. - Pregnant or planning to become pregnant over the course of the study. - A history of poorly controlled epilepsy. - If there is malignancy on the hand or arm. - If younger than 18 - Severe contracture of wrist and finger joints. - Painful shoulder. - Suffering from significant autonomic dysreflexia in response to FES.

Study Design


Related Conditions & MeSH terms


Intervention

Device:
TetraGrip II system
This main aim of this whole research project is to evaluate the performance of the TetraGrip II system in improving the upper limb functions in people with C4-C7 tetraplegia i.e. people who have damaged their spinal cord in the neck resulting in loss of function in all four limbs. The Tetragrip system uses a technique called Functional Electrical Stimulation (FES) in which small electrical impulses are used to activate paralysed muscles and hence provide movement. The stimulation is controlled by sensors which measure the movement of the other shoulder and enable the person to regain the use of their hand via stimulating electrodes placed on the skin over the relevant muscles. The feasibility of using this FES based system in restoring the upper arm functions will be evaluated by clinically trying the device on participants with C4-C7 tetraplegia.

Locations

Country Name City State
United Kingdom Salisbury District Hospital Salisbury Wiltshire

Sponsors (2)

Lead Sponsor Collaborator
Bournemouth University Salisbury NHS Foundation Trust

Country where clinical trial is conducted

United Kingdom, 

Outcome

Type Measure Description Time frame Safety issue
Other Two Point Discrimination Test Test to be completed both with and without the device At the start of the study
Other Two Point Discrimination Test Test to be completed both with and without the device At the end of the clinical phase (week 10)
Other Two Point Discrimination Test Test to be completed both with and without the device At the end of the home phase for participants taking the device home (week 18)
Primary Grasp Release Test (GRT) Test to be completed both with and without the device - exercise daily for 30 minutes, building up to 60 minutes over a four week period Start of study - 30 minutes building up to 60 minutes over a four week period
Primary Grasp Release Test (GRT) Test to be completed both with and without the device - exercise daily for 30 minutes, building up to 60 minutes over a four week period At the end of the clinical phase (week 10) - 30 minutes building up to 60 minutes over a four week period
Primary Grasp Release Test (GRT) Test to be completed both with and without the device - exercise daily for 30 minutes, building up to 60 minutes over a four week period At the end of the home phase for participants taking the device home (week 18) - 30 minutes building up to 60 minutes over a four week period
Secondary Measurement of palmar grip Test to be completed both with and without the device At the start of the study - 30 minutes
Secondary Measurement of pinch grip Test to be completed both with and without the device At the start of the study - 30 minutes
Secondary Measurement of palmar grip Test to be completed both with and without the device At the end of the clinical phase (week 10) - 30 minutes
Secondary Measurement of pinch grip Test to be completed both with and without the device At the end of the clinical phase (week 10) - 30 minutes
Secondary Measurement of palmar grip Test to be completed both with and without the device At the end of the home phase for participants taking the device home (week 18) - 30 minutes
Secondary Measurement of pinch grip Test to be completed both with and without the device At the end of the home phase for participants taking the device home (week 18) - 30 minutes
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