ISRCTN ISRCTN14598016
DOI https://doi.org/10.1186/ISRCTN14598016
Sponsor Newcastle University
Funders Inspire Foundation, Rugby Football Union Injured Players Foundation
Submission date
16/04/2026
Registration date
16/04/2026
Last edited
16/04/2026
Recruitment status
Not yet recruiting
Overall study status
Ongoing
Condition category
Nervous System Diseases
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims
After a spinal cord injury, many people experience weakness or loss of movement in their hands. This happens because the injury damages the pathways that carry signals from the brain to the muscles. Although some of these pathways may survive the injury, they are often too weak to control movement effectively.

We have developed a new approach designed to strengthen these surviving pathways. It works by pairing a precisely timed hand movement with an electrical stimulus delivered to a nerve in the wrist. When the movement and the stimulation happen at exactly the right time together, the brain and spinal cord are encouraged to strengthen their connections — a process similar to how we learn new skills. We have already shown this works in healthy volunteers. This study aims to find out whether the same approach can improve hand function in people living with spinal cord injury.

Who can participate?
Adults aged 18 or over who have had a cervical spinal cord injury for at least one year which resulted in hand weakness. Participants must be able to make a well-timed hand movement in response to a visual cue. People cannot participate if they have an implanted device (e.g. pacemaker), ongoing cord compression or a spinal cord disease, a history of seizures or head injuries, uncontrolled medical problems (e.g. heart disease) or an aversion to loud sounds.

What does the study involve?
Participants will attend three laboratory visits at their agreed rehabilitation gym or Newcastle University Medical School, each separated by six weeks. At each visit, a range of assessments will be completed to measure hand strength, dexterity, and the strength of nerve connections between the brain and the hand. These assessments include standard clinical tests, grip strength measurements, and non-invasive brain stimulation techniques.

Between visits, participants will use a small portable device at home for six weeks. The device connects to a mobile phone app, which takes the form of a simple game. To play the game, participants make a hand movement in response to a visual cue on their phone screen. Each time the movement is made, the device delivers a small electrical stimulus to a nerve in the wrist. This stimulus is not painful, though participants may feel a mild tingling sensation. The aim is to complete around 20 minutes of the game each day.

Participants will be randomly allocated (computer randomisation) to one of two groups. One group will use the device in the first six weeks of the study, and the other group will use it in the second six weeks. This means all participants receive the intervention, just at different times.

To help with motivation, participants can choose to provide contact details of a family member or friend. If the game has not been completed by an agreed time each day, an automatic reminder message will be sent to that person. Participants can opt out of this at any time.

What are the possible benefits and risks of participating?
Participants may experience improvements in hand strength or function as a result of taking part, although this cannot be guaranteed. The electrical nerve stimulation used in this study is the same type routinely used in medical diagnosis and is entirely safe. Some participants may experience mild, short-lived skin irritation from the adhesive electrodes. The brain stimulation techniques used during laboratory visits are also widely used in research and clinical settings and are considered low risk.

Where is the study run from?
The study is run from the Biosciences Institute at Newcastle University, Newcastle upon Tyne, UK. In person visits will take place either in Newcastle University Medical School, or in either the Bristol or Gatwick Neurokinex rehabilitation gyms. Participants will use the device at home between visits.

When is the study starting and how long is it expected to run for?
The study is expected to start in April 2026 and run until January 2027. Each participant will be involved for 12 weeks in total.

Who is funding the study?
The study is funded by the INSPIRE Foundation and the Rugby Football Union Injured Players Foundation.

Who is the main contact?
For more information about the study, please contact: Lillian Clements at the Biosciences Institute, Newcastle University
Email: lillian.clements@newcastle.ac.uk

Contact information

Miss Lillian Clements
Scientific, Public

Newcastle University Medical School, Framlington Place
Newcastle Upon Tyne
NE2 4HH
United Kingdom

ORCiD logoORCID ID 0009-0008-5292-2230
Phone +44 7951202024
Email lillian.clements@newcastle.ac.uk
Prof Stuart Baker
Principal investigator

Newcastle University Medical School, Framlington Place
Newcastle Upon Tyne
NE2 4HH
United Kingdom

ORCiD logoORCID ID 0000-0001-8118-4048
Phone +44 (0)191 208 8206
Email stuart.baker@newcastle.ac.uk

Study information

Primary study designInterventional
AllocationRandomized controlled trial
MaskingOpen (masking not used)
ControlActive
AssignmentCrossover
PurposeDevice feasibility, Treatment
Scientific titleStrengthening residual motor pathways in individuals with spinal cord injury
Study objectives 1. To demonstrate that the movement-paired nerve stimulation protocol strengthens descending motor pathways in individuals with cervical spinal cord injury.
2. To determine whether the protocol can be effectively delivered in a home setting using a portable device.
3. To determine whether the protocol leads to measurable improvements in hand function in people with spinal cord injury.
Ethics approval(s)

Approved 17/03/2026, FMS Ethics Committee (Newcastle University Medical School, Framlington Place, Newcastle Upon Tyne, NE2 4HH, United Kingdom; +44 (0)191 208 6000; fmsethics@newcastle.ac.uk), ref: 71057

Health condition(s) or problem(s) studiedIndividuals who have had a cervical spinal cord injury which resulted in hand weakness
InterventionThis study uses a randomised crossover design. Participants are allocated to one of two groups via randomisation (computer randomisation). Both groups receive the same intervention but in different orders across the 12-week study period.

Group A receives the intervention device after visit 1. They use the device for at least 20 minutes daily for six weeks, returning it at visit 2. The six weeks following device return serve as the control period, with visit 3 occurring at week 12.

Group B receives no intervention between visit 1 and visit 2 (control period). They receive the intervention device after visit 2, using it daily for six weeks before returning it at visit 3.

Intervention: Participants perform a precisely timed hand movement in response to a visual cue presented via a mobile phone game. At the moment of movement, a brief electrical stimulus is delivered to a peripheral nerve via adhesive electrodes connected to a custom Bluetooth device. Participants complete approximately 300 paired stimulations per day throughout the six-week intervention period in their home environment.

Total duration: 12 weeks per participant, comprising one six-week intervention period and one six-week control period. Participants attend three laboratory visits at weeks 0, 6 and 12.
Intervention typeDevice
PhasePhase I/II
Drug / device / biological / vaccine name(s)MoveMend Stimulator
Primary outcome measure(s)
  1. Upper limb motor function measured using GRASSP (Graded Redefined Assessment of Strength, Sensibility, and Prehension) at Weeks 0, 6, and 12
  2. Corticospinal excitability measured using Motor evoked potentials (MEPs) elicited by transcranial magnetic stimulation (TMS) at Weeks 0, 6, and 12
Key secondary outcome measure(s)
  1. Self-reported upper limb capability measured using Capabilities of Upper Extremity Questionnaire (CUE) at Weeks 0, 6, and 12
  2. Gross manual dexterity measured using Box and Block Test at Weeks 0, 6, and 12
  3. Grasp strength measured using Dynamometer during precision and power grip at Weeks 0, 6, and 12
  4. Independence of finger movement measured using Custom built device using force sensors at Weeks 0, 6, and 12
  5. Reticulospinal drive to voluntary movement measured using StartReact test at Weeks 0, 6, and 12
  6. Cortical inhibition and excitation measured using Paired-pulse TMS and TMS combined with peripheral nerve stimulation at Weeks 0, 6, and 12
Completion date22/01/2027

Eligibility

Participant type(s)
Age groupMixed
Lower age limit18 Years
Upper age limit100 Years
SexAll
Target sample size at registration30
Key inclusion criteria1. >1 year post injury
2. Have a cervical spinal cord injury (C2-C7) resulting in hand weakness
3. Able to make a well-timed hand movement
Key exclusion criteria1. Uncontrolled medical problems including pulmonary, cardiovascular or orthopaedic disease
2. Psychosis or altered cognitive status which would affect consent
3. History of head injury or stroke
4. Fitted with cardiac pacemaker (a contraindication for TMS)
5. Metal plate in skull (a contraindication for TMS)
6. History of seizures (a contraindication for TMS)
7. Pregnant females
8. Ongoing cord compression or a syrinx in the spinal cord or spinal cord disease such as spinal stenosis, spina bifida or herniated cervical disk
9. An aversion to loud sounds
Date of first enrolment04/05/2026
Date of final enrolment01/12/2026

Locations

Countries of recruitment

  • United Kingdom
  • England

Study participating centre

Newcastle University
Newcastle University Medical School, Framlington Place
Newcastle Upon Tyne
NE2 4HH
England

Results and Publications

Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot expected to be made available
IPD sharing plan

Editorial Notes

16/04/2026: Trial's existence confirmed by Newcastle University.