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Paired Vagus Nerve Stimulation (VNS) With Rehabilitation for Upper Limb Function Improvement After Stroke

This study has been completed.
ClinicalTrials.gov Identifier:
First Posted: August 20, 2012
Last Update Posted: October 17, 2016
The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.
Information provided by (Responsible Party):
MicroTransponder Inc.
Patients (UK only) at least 6 months post stroke, with upper limb deficits, may enroll. Patients will be randomized to one of two groups - a group implanted with a device that allows pairing VNS with rehabilitation and a group that only receives rehabilitation (no implant). Patients have two baseline evaluations, one evaluation after implant but before initiation of treatment, and then six weeks of rehabilitation or rehabilitation + VNS, followed by post acute therapy evaluations at 1, 7, and 30 days after the 6-weeks of treatment. The intent is to assess safety and provide preliminary effectiveness information for VNS for upper limb functional improvement after stroke. Implanted patients may receive longer-term treatment and follow-up after the acute study.

Condition Intervention
Stroke Device: Vivistim System Other: Rehab Only

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: A Proof-of-Concept Pilot Study Assessing Vagus Nerve Stimulation (VNS) Paired With Rehabilitation for Improved Upper Limb Function After Stroke (MicroTransponder's Vivistim System)

Resource links provided by NLM:

Further study details as provided by MicroTransponder Inc.:

Primary Outcome Measures:
  • Safety [ Time Frame: 6-weeks ]
    Assessment of adverse events and serious adverse events.

Enrollment: 21
Study Start Date: February 2013
Study Completion Date: December 2014
Primary Completion Date: August 2014 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
Experimental: VNS
VNS (vagus nerve stimulation) paired with rehabilitation as provided by the Vivistim System.
Device: Vivistim System
The Vivistim System provides vagus nerve stimulation (VNS) with rehabilitation movements.
Other Name: VNS, vagus nerve stimulation, paired VNS
Active Comparator: Rehab Only
Rehabilitation only (no implant, no VNS)
Other: Rehab Only
Rehabilitation without device implant and VNS


Information from the National Library of Medicine

Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the contacts provided below. For general information, Learn About Clinical Studies.

Ages Eligible for Study:   18 Years to 80 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No

Major Inclusion Criteria:

  1. History of unilateral supratentorial ischemic stroke that occurred at least 6 months prior
  2. Age > 18 years and < 80 years
  3. Right or left sided weakness of upper extremity

Major Exclusion Criteria:

  1. Hemorrhagic stroke
  2. Any deficits in language or attention that interferes with reasonable study participation
  3. Presence of significant apraxia
  4. Profound Sensory loss
  5. Active major neurological or psychiatric diagnosis that would likely interfere with study protocol including alcohol or drug abuse
  Contacts and Locations
Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT01669161

United Kingdom
U. Glasgow / Western Infirmary
Glasgow, Scotland, United Kingdom
Sponsors and Collaborators
MicroTransponder Inc.
Principal Investigator: Jesse Dawson, MD U. Glasgow
  More Information

Additional Information:
Responsible Party: MicroTransponder Inc.
ClinicalTrials.gov Identifier: NCT01669161     History of Changes
Other Study ID Numbers: Mt-St-01
First Submitted: August 15, 2012
First Posted: August 20, 2012
Last Update Posted: October 17, 2016
Last Verified: October 2016
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: No

Keywords provided by MicroTransponder Inc.:

Additional relevant MeSH terms:
Cerebrovascular Disorders
Brain Diseases
Central Nervous System Diseases
Nervous System Diseases
Vascular Diseases
Cardiovascular Diseases