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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Miss Kirsty McKendrick
+44 (0)114 222 4308
kirsty.mckendrick@sheffield.ac.uk


More information about this study, what is involved and how to take part can be found on the study website.

Study Location:

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Be Part of Research - Trial Details - A trial investigating the effectiveness of vagus nerve stimulation during rehabilitation therapy in patients with a weak arm following a stroke

A trial investigating the effectiveness of vagus nerve stimulation during rehabilitation therapy in patients with a weak arm following a stroke

Medical Conditions

Stroke


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


Over 15 million people suffer a stroke worldwide annually. One third are left with arm weakness causing difficulties with daily activities. Whilst rehabilitation therapy does help after stroke, the benefits are modest. In a recent trial, stimulating the vagus nerve (VN) while the participant moved their weak arm resulted in better arm recovery compared with therapy alone. However, the stimulator was surgically implanted, and the VNS was triggered by a therapist in hospital. In this study the VN will be stimulated in a non-invasive way at home. The VN will be stimulated through the skin via an earpiece using a TVNS device. This study aims to determine whether transcutaneous vagus nerve stimulation (TVNS) paired with rehabilitation therapy of the affected arm after stroke improves motor function in participants with arm weakness following a stroke. In a sub-study, the researchers will also assess if TVNS produces changes in the brain via fMRI and, in some cases, PET scans.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

01 Oct 2023 31 Jul 2025

Participants will be randomly allocated to receive either sham TVNS (very low stimulation) or active TVNS. Some participants will also be asked to wear the TVNS device whilst undertaking activities of daily living. Participants will wear the TVNS device when completing the self-delivered rehabilitation therapy for 1 hour per day, 5 days per week for 12 weeks. The rehabilitation therapy plan will be tailored to each participant, completed at home, and includes repetitive tasks such as turning cards, moving objects, opening, and closing bottles. Participants will be followed up at a face-to-face appointment at 3 and 6 months after starting treatment. The follow-up appointments enable outcome assessments of the intervention.


Patients aged 18 years and over who have arm weakness following a stroke between 6 months to 10 years ago and are no longer undergoing active rehabilitation therapy

You can take part if:



You may not be able to take part if:


1. Has significant other impairment of upper limb, e.g., frozen shoulder2. Has severe spasticity (Modified Ashworth score of ≥3)3. Has health conditions that prevent engagement with rehabilitation therapy, e.g., advanced dementia4. Has severe aphasia and either: a) informed consent unlikely based on consent support tool, b) engagement with RTT difficult, or c) inability to communicate adverse events from TVNS5. Currently participating in another stroke rehabilitation trial6. Pregnant or trying to get pregnant7. On a pacemaker or another implantable electrical device8. Has a cochlear implant or other similar device9. Currently receiving therapy or treatment to improve arm function and would not be willing to stop for the duration of the trial10. Has previously experienced a haemorrhagic stroke

For all participants entering the mechanistic sub-study only:1. Contraindications to Magnetic Resonance Imaging (MRI) (e.g., metal implant)2. Has previously experienced or is likely to suffer severe anxiety or claustrophobia in relation to MR imaging examination

Additional criteria for PET-MRI:1. Contraindications to Positron Emission Tomography (PET) (e.g., has a known allergy to FDG PET tracer)2. Has unstable diabetes

A full screening assessment will be conducted when the participant attends for the MRI to ensure the safety of the participant.


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Royal Hallamshire Hospital
    Glossop Road
    Sheffield
    S10 2JF
  • John Radcliffe Hospital
    Headley Way Headington
    Oxford
    OX3 9DU
  • Sunderland Royal Hospital
    Kayll Road
    Sunderland
    SR4 7TP
  • Royal Bournemouth General Hospital
    Castle Lane East
    Bournemouth
    BH7 7DW
  • Doncaster Royal Infirmary
    Armthorpe Road
    Doncaster
    DN2 5LT
  • University Hospital Llandough
    Penlan Road Llandough
    Penarth
    CF64 2XX
  • St Lukes Hospital
    Little Horton Lane
    Bradford
    BD5 0NA
  • Pulross Community Centre
    47a Pulross Road Stockwell
    London
    SW9 8AE
  • Brownley Green Health Centre
    171 Brownley Road Wythenshawe
    Manchester
    M22 9UH
  • Northenden Health Centre
    489 Palatine Road Northenden
    Manchester
    M22 4DH
  • Melbourne Centre Surgery
    Swithland House 352 London Road
    Leicester
    LE2 2PL
  • Montagu Hospital
    Adwick Road
    Mexborough
    S64 0AZ
  • Bodmin Hospital
    Boundary Road
    Bodmin
    PL31 2QT
  • Heart of Hounslow Centre for Health
    92 Bath Road
    Hounslow
    TW3 3EL
  • St Mary's Hospital
    Green Hill Road
    Leeds
    LS12 3QE
  • Aintree Hospital
    Therapies Department Lower Lane
    Fazakerley
    L9 7AL
  • Moseley Hall Hospital
    Alcester Road Moseley
    Birmingham
    B13 8JL
  • West Pottergate Medical Practice
    Earlham Road
    Norwich
    NR2 4BX
  • Royal London Hospital
    HASU (Hyper Acute Stroke Unit) Ward 11C Research Office Whitechapel Road Whitechapel
    London
    E1 1FR
  • Yeatman Hospital
    Hospital Lane
    Sherborne
    DT9 3JU
  • King’s College Hospital
    Stroke Research Office Academic Neuroscience Centre Ruskin Wing Denmark Hill
    London
    SE5 9RS
  • South Petherton Community Hospital
    Bernard Way
    South Petherton
    TA13 5EF

By taking part in this study, participants will be directly helping to inform the future evidence base of interventions for people with arm weakness after stroke. Participants will be given a tailored 12-week rehabilitation therapy programme to do at home and a TVNS device to use for the duration. This may be of benefit to some participants who may not be receiving any other therapy for their arm weakness. The TVNS device is usually well tolerated but previous studies have found some side effects. These are mild skin irritation (in 15% of cases), headaches (less than 5% of cases), dizziness, sore throat and nausea (all in less than 2% of cases). The nerve that is stimulated in this study can affect the heart rhythm but there has been lots of research using this device in humans with no concerns about the safety of the participants. Some participants may find participation in the trial time-consuming as it will require attendance at a minimum of three face-to-face appointments, in addition to the 12-week treatment period completed at home.

Miss Kirsty McKendrick
+44 (0)114 222 4308
kirsty.mckendrick@sheffield.ac.uk



More information about this study, what is involved and how to take part can be found on the study website.


The study is sponsored by Sheffield Teaching Hospitals NHS Foundation Trust and funded by National Institute for Health and Care Research; NIHR Evaluation, Trials and Studies Co-ordinating Centre (NETSCC); Grant Codes: NIHR133169.




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Read full details for Trial ID: ISRCTN20221867

Or CPMS 53862

Last updated 07 March 2025

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