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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT04088578
Other study ID # STUDY19040394 (Aim 2)
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 22, 2019
Est. completion date November 9, 2021

Study information

Verified date October 2022
Source University of Pittsburgh
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

The goal of this study is to learn more about the connections between the brain, spinal cord, and muscles and how these connections can be strengthened after neurological injury.


Description:

To establish a link between the physiological mechanisms driving enhanced motor control in response to VNS, subjects will undergo progressive training on a visuomotor task that requires fine gradation of voluntary motor output to control a moving object through target boundaries. In separate groups, VNS or sham stimulation will be paired with movement when a minimal time-on-target (ToT) is achieved.


Recruitment information / eligibility

Status Completed
Enrollment 26
Est. completion date November 9, 2021
Est. primary completion date November 9, 2021
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 18 Years to 75 Years
Eligibility Inclusion Criteria: INDIVIDUALS WHO HAVE HAD A STROKE: 1. Diagnosis of first ever stroke 2. At least 6 months after stroke onset 3. Motor-evoked potentials in hand/arm muscles 4. Subjects must show an understanding of the study goals and have the ability to follow simple directions as judged by the investigators. ALL INDIVIDUALS: 5. Between the ages of 18 and 75 years old Exclusion Criteria: INDIVIDUALS WHO HAVE HAD A STROKE: 1. Hemispatial neglect, aphasia, or cognitive impairment that would impact testing and would interfere with the ability to follow simple instructions, as judged by the investigators ALL INDIVIDUALS: 2. Neurological disorder(s) influencing movement (besides stroke) 3. History of seizure or epilepsy 4. Metallic brain implants 5. Bodily implants such as cardioverter defibrillators, insulin pumps, ventriculoperitoneal shunts, cochlear implants, or pacemakers 6. Pregnant or expecting to become pregnant 7. Difficulty maintaining alertness and/or remaining still 8. Silicone or plastic allergy 9. History of vestibular disorders (eg, Vertigo, Meniere's Disease, etc.)

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Training
Controlling movement of an object on computer screen by adjusting muscle activity.
Vagus Nerve Stimulation
Recruits the auricular branch of the vagus nerve which activates brain structures that release chemicals mediating cortical plasticity.
Sham Stimulation
Sub-threshold stimulation that does not activate neural structures.

Locations

Country Name City State
United States University of Pittsburgh Pittsburgh Pennsylvania

Sponsors (1)

Lead Sponsor Collaborator
University of Pittsburgh

Country where clinical trial is conducted

United States, 

References & Publications (11)

Dawson J, Pierce D, Dixit A, Kimberley TJ, Robertson M, Tarver B, Hilmi O, McLean J, Forbes K, Kilgard MP, Rennaker RL, Cramer SC, Walters M, Engineer N. Safety, Feasibility, and Efficacy of Vagus Nerve Stimulation Paired With Upper-Limb Rehabilitation After Ischemic Stroke. Stroke. 2016 Jan;47(1):143-50. doi: 10.1161/STROKEAHA.115.010477. Epub 2015 Dec 8. — View Citation

Heidenreich PA, Trogdon JG, Khavjou OA, Butler J, Dracup K, Ezekowitz MD, Finkelstein EA, Hong Y, Johnston SC, Khera A, Lloyd-Jones DM, Nelson SA, Nichol G, Orenstein D, Wilson PW, Woo YJ; American Heart Association Advocacy Coordinating Committee; Stroke Council; Council on Cardiovascular Radiology and Intervention; Council on Clinical Cardiology; Council on Epidemiology and Prevention; Council on Arteriosclerosis; Thrombosis and Vascular Biology; Council on Cardiopulmonary; Critical Care; Perioperative and Resuscitation; Council on Cardiovascular Nursing; Council on the Kidney in Cardiovascular Disease; Council on Cardiovascular Surgery and Anesthesia, and Interdisciplinary Council on Quality of Care and Outcomes Research. Forecasting the future of cardiovascular disease in the United States: a policy statement from the American Heart Association. Circulation. 2011 Mar 1;123(8):933-44. doi: 10.1161/CIR.0b013e31820a55f5. Epub 2011 Jan 24. — View Citation

Khodaparast N, Hays SA, Sloan AM, Fayyaz T, Hulsey DR, Rennaker RL 2nd, Kilgard MP. Vagus nerve stimulation delivered during motor rehabilitation improves recovery in a rat model of stroke. Neurorehabil Neural Repair. 2014 Sep;28(7):698-706. doi: 10.1177/1545968314521006. Epub 2014 Feb 18. — View Citation

Khodaparast N, Hays SA, Sloan AM, Hulsey DR, Ruiz A, Pantoja M, Rennaker RL 2nd, Kilgard MP. Vagus nerve stimulation during rehabilitative training improves forelimb strength following ischemic stroke. Neurobiol Dis. 2013 Dec;60:80-8. doi: 10.1016/j.nbd.2013.08.002. Epub 2013 Aug 15. — View Citation

Kilgard MP, Rennaker RL, Alexander J, Dawson J. Vagus nerve stimulation paired with tactile training improved sensory function in a chronic stroke patient. NeuroRehabilitation. 2018;42(2):159-165. doi: 10.3233/NRE-172273. — View Citation

Kimberley TJ, Pierce D, Prudente CN, Francisco GE, Yozbatiran N, Smith P, Tarver B, Engineer ND, Alexander Dickie D, Kline DK, Wigginton JG, Cramer SC, Dawson J. Vagus Nerve Stimulation Paired With Upper Limb Rehabilitation After Chronic Stroke. Stroke. 2018 Nov;49(11):2789-2792. doi: 10.1161/STROKEAHA.118.022279. — View Citation

Langhorne P, Coupar F, Pollock A. Motor recovery after stroke: a systematic review. Lancet Neurol. 2009 Aug;8(8):741-54. doi: 10.1016/S1474-4422(09)70150-4. Review. — View Citation

Meyers EC, Solorzano BR, James J, Ganzer PD, Lai ES, Rennaker RL 2nd, Kilgard MP, Hays SA. Vagus Nerve Stimulation Enhances Stable Plasticity and Generalization of Stroke Recovery. Stroke. 2018 Mar;49(3):710-717. doi: 10.1161/STROKEAHA.117.019202. Epub 2018 Jan 25. — View Citation

Nakayama H, Jørgensen HS, Raaschou HO, Olsen TS. Recovery of upper extremity function in stroke patients: the Copenhagen Stroke Study. Arch Phys Med Rehabil. 1994 Apr;75(4):394-8. — View Citation

Pollock A, St George B, Fenton M, Firkins L. Top ten research priorities relating to life after stroke. Lancet Neurol. 2012 Mar;11(3):209. doi: 10.1016/S1474-4422(12)70029-7. — View Citation

Porter BA, Khodaparast N, Fayyaz T, Cheung RJ, Ahmed SS, Vrana WA, Rennaker RL 2nd, Kilgard MP. Repeatedly pairing vagus nerve stimulation with a movement reorganizes primary motor cortex. Cereb Cortex. 2012 Oct;22(10):2365-74. doi: 10.1093/cercor/bhr316. Epub 2011 Nov 10. — View Citation

* Note: There are 11 references in allClick here to view all references

Outcome

Type Measure Description Time frame Safety issue
Primary Change in time-on-target score. The score reflects the total time the object overlaps any part of targets, expressed as a percentage (0-100) of the total possible time. Thus, a score of 0 is the worst possible score, whereas, 100 is the best possible score. The primary endpoint is the change from baseline (ie, before training) in the time-on-target score. 3 weeks
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