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StrokePhase 1/2NCT03292159

Transcutaneous Vagus Nerve Stimulation for Motor Recovery After Stroke

A Phase 1/2 study testing Active RAVANS concurrent with arm motor training and Inactive RAVANS concurrent with arm motor training in people with Stroke and Upper Extremity Paresis, run by Massachusetts General Hospital at 1 site in United States.

Terminated

Stopped early. The study ended before it was planned to and will not resume.

Official record
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Trial summary

This study will evaluate the safety and effectiveness of Respiratory-gated Auricular Vagal Afferent Nerve Stimulation (RAVANS) for improving motor recovery after stroke. Subacute stroke patients will receive RAVANS or sham stimulation concurrent with arm motor training during 10 intervention sessions occurring daily… Read more about this study

Who is it for?
Ages 18 years and older
Conditions the study is for
Stroke, Upper Extremity Paresis
What is being tested?
Active RAVANS concurrent with arm motor training and Inactive RAVANS concurrent with arm motor training
Type of treatment
Medical device
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
6 participants
Where
1 siteUnited States
Study dates
17 May 2018to 20 Nov 2018
Phase
Phase 1/2
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 years and older
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Supratentorial ischemic or hemorrhagic stroke incurred 4-30 days prior;
  • Contralesional UL motor impairment defined by NIHSS item 5 score 1 or 2 (scale 0-4);
  • Age ≥ 18;
  • Able to provide written informed consent.

Who cannot join

  • Implanted electronic device (e.g., pacemaker, neurostimulator);
  • Pregnancy;
  • Major psychiatric or medical condition that could interfere with study participation;
  • Medical condition affecting left ear that could interfere with delivering RAVANS (e.g., wound, infection, malignancy, hypoesthesia);
  • Significant pre-existing disability of stroke-affected UL in activities of daily living due to prior stroke or other medical cause defined by Stroke Impact Scale item 7 (SIS-hand) mean score < 4 (scale: 0-5);
  • History of seizure during year before stroke or > 1 post-stroke seizure;
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  • Significant cognitive or language impairment that would interfere with informed consent or study participation;
  • Severe dysphagia;
  • Bradycardia defined as resting heart rate < 50 bpm;
  • Nonsustained ventricular tachycardia;
  • Cardiac conduction disorder (i.e., bundle branch block, heart block, long Q-T syndrome);
  • History of asystole;
  • History of recurrent vaso-vagal syncope;
  • Hypotension defined as blood pressure < 90/60 mmHg.

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Spaulding Rehabilitation Hospital

    Boston, Massachusetts, 02129

Other trials in United States

About this study

Official title: Safety and Effectiveness of Transcutaneous Vagus Nerve Stimulation Therapy to Improve Motor Recovery After Stroke

This study will evaluate the safety and effectiveness of Respiratory-gated Auricular Vagal Afferent Nerve Stimulation (RAVANS) for improving motor recovery after stroke. Subacute stroke patients will receive RAVANS or sham stimulation concurrent with arm motor training during 10 intervention sessions occurring daily for 30 minutes over 2 weeks. The safety and improvements in arm motor function after the intervention will be compared in patients receiving RAVANS to those receiving sham stimulation.

Read the detailed description

This study will evaluate the safety, feasibility and effectiveness of Respiratory-gated Auricular Vagal Afferent Nerve Stimulation (RAVANS) for improving motor recovery after stroke. Subacute stroke patients will be randomized to RAVANS or sham stimulation groups. Patients will receive RAVANS or sham stimulation concurrent with arm motor training during 10 sessions occurring daily for 30 minutes over 2 weeks. Safety will be compared in patients receiving RAVANS to those receiving sham stimulation. Feasibility will be evaluated by recruitment into the study and retention of enrolled patients. Changes in arm motor function will be compared between RAVANS and sham stimulation groups from baseline to immediately after the intervention period and to function at 3-months after stroke.

Being tested
Active RAVANS concurrent with arm motor training, Inactive RAVANS concurrent with arm motor training
Keywords
stroke, vagus nerve stimulation, upper extremity paresis
Medical subject headings
Stroke, Paresis

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Active RAVANS concurrent with arm motor trainingDevice

    Patient receives non-painful, sensory-level stimulation to the skin of left outer ear, where nerve endings of the auricular branch of the vagus nerve reside, while participating in arm motor training

  • Inactive RAVANS concurrent with arm motor trainingDevice

    Patient does not receive stimulation delivered to the skin of left outer ear while participating in arm motor training

Study groups in NCT03292159
Study groupRoleWhat they receive
RAVANSExperimentalNot described
Receives: Device: Active RAVANS concurrent with arm motor training
Sham stimulationSham comparatorNot described
Receives: Device: Inactive RAVANS concurrent with arm motor training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Upper extremity motor impairment

    Change in upper extremity subtest of Fugl Meyer Assessment (FMA-UE) score

    Measured: Baseline to just after 10 intervention sessions, and baseline to 3 months post-stroke

Secondary outcomes (4)
  1. Upper extremity motor function

    Change in Action Research Arm Test (ARAT) score

    Measured: Baseline to just after 10 intervention sessions, and baseline to 3 months post-stroke

  2. Grip force control

    Change in accuracy, variability and temporal structure of performance on a grip force control task

    Measured: Baseline to just after 10 intervention sessions, and baseline to 3 months post-stroke

  3. Upper extremity disability

    Change in hand subtest of Stroke Impact Scale (SIS-hand) score

    Measured: Baseline to 3 months post-stroke

  4. Mood state, anxiety and depression

    Change in Hospital Anxiety and Depression Scale (HADS) scores

    Measured: Baseline to 3 months post-stroke

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted25 Sep 2017
  2. Study start17 May 2018
  3. Primary completion20 Nov 2018
  4. Study completion20 Nov 2018

Why it stopped: funding not continued

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 1/2
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Triple blind
Who is masked
Participant, Investigator, Outcomes assessor
Enrolment
6 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT03292159
Sponsor's protocol ID
2017P000129
Status last verified
Sep 2021
First submitted
20 Sep 2017
Last updated
21 Sep 2021
Results posted
No
FDA-regulated drug
No
FDA-regulated device
No

Questions about this trial

What is this clinical trial studying?

A Phase 1/2 study testing Active RAVANS concurrent with arm motor training and Inactive RAVANS concurrent with arm motor training in people with Stroke and Upper Extremity Paresis, run by Massachusetts General Hospital at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 14 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: stopped early, as of the sponsor's last update on 21 Sep 2021. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this combined phase mean?

Phase 1 studies test a treatment in a small group of people for the first time or in a new way, mainly to check safety and find the right dose.

Phase 2 studies give the treatment to a larger group to see whether it has the intended effect and to keep checking safety.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was stopped early (reason given: funding not continued). Results are not available in the source record.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Upper extremity motor impairment (time frame: Baseline to just after 10 intervention sessions, and baseline to 3 months post-stroke). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 21 Sep 2021.

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