- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03592173
Non-Invasive Stimulation for Improving Motor Function
Non-Invasive Stimulation for Improving Motor Function in Spinal Cord Injury
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Recovery of motor function continues to be a problem following Spinal Cord Injury. Non-invasive brain stimulation techniques, targeting cortical areas, have been shown to enhance the excitability in the human motor cortex, and these changes in the motor cortex may be of significance for the rehabilitation of brain injured patients. However, little is known about the adaptational changes in the excitability/plasticity of spinal neural circuits in spinal cord injury patients.
The purpose of this study is to investigate the excitability of cortical and spinal inhibitory and excitatory mechanisms before and following a period of repetitive and synchronized dual peripheral nerve and brain stimulation. Repetitive, paired brain and peripheral nerve stimulation as a neuromodulatory tool, paired associative stimulation (PAS), has been well described. In this technique, stimuli are timed such that afferent and efferent volleys interact at the level of the cortex, that lead to a temporary enhancement of Motor Evoked Potential (MEP) amplitude in target muscles, and when applied repeatedly, lead to a sustained effect, outlasting the intervention period. This repetitive technique has been done in healthy subjects and patients with neurological diseases. By modifying the time between paired stimuli, the investigators will generate afferent/efferent interactions in the spinal cord.
The working hypothesis of this study is that the acute facilitation of the H-reflex during Paired TMS and peripheral nerve stimulation, may be harnessed to modulate spinal excitability (sustained increase in the MEP amplitude). That is, the investigators will test if similar to PAS, a change in excitability outlasting the stimulation/intervention period may occur with afferent/efferent interactions, although at the level of the spinal cord rather than the cortex, and be useful to strengthen residual pathways after damage to the spinal cord.
Study Type
Enrollment (Anticipated)
Phase
- Phase 2
Contacts and Locations
Study Contact
- Name: Mar Cortes, MD
- Phone Number: 9143683181
- Email: mac2083@med.cornell.edu
Study Contact Backup
- Name: Zoe Tsagaris, MS
- Phone Number: 9145972153
- Email: kzt3001@med.cornell.edu
Study Locations
-
-
New York
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White Plains, New York, United States, 10605
- Recruiting
- Burke Medical Research Institute
-
Contact:
- Kathleen Friel, PhD
- Phone Number: 914-368-3116
- Email: braininjuryclinic@med.cornell.edu
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Spinal cord injury subjects with chronic lesions (> 6 months after the injury)
- Motor incomplete lesion, measured by the American Spinal cord Injury Association (ASIA) Impairment Scale (AIS)
- Traumatic cause of lesion; d) Some degree of motor function in the ankle flexor and extensors (Low extremity Motor Score - LEMS≥3).
Exclusion Criteria:
- Motor and sensory complete lesion (AIS A); LEMS < 3;
- Non-traumatic cause of lesion
- Medically unstable condition
- Other concurrent neurological illness
- Presence of a potential TMS risk factor (detailed below)
Potential TMS risk factor:
- Damaged skin at the site of stimulation
- Presence of an electrically, magnetically or mechanically activated implant
- An intracerebral vascular clip, or any other electrically sensitive support system
- Metal in any part of the body, including metal injury to the eye
- A history of medication-resistant epilepsy in the family
- Past history of seizures or unexplained spells of loss of consciousness.
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: SAS20
The paired stimulation (SAS) will be comprised of patient adjusted subthreshold TMS (80% of resting motor threshold over optimal site for soleus muscle), delivered 20ms prior to a peripheral nerve stimulus in the popliteal fossa and will be repeated at 0.1 Hz for 15 minutes (90 stimuli pairs).
|
Method of assessing neurophysiology and activity of the spinal cord
|
Active Comparator: SAS0
The paired stimulation (SAS) will be comprised of patient adjusted subthreshold TMS (80% of resting motor threshold over optimal site for soleus muscle), delivered 0ms prior to a peripheral nerve stimulus in the popliteal fossa and will be repeated at 0.1 Hz for 15 minutes (90 stimuli pairs).
|
Method of assessing neurophysiology and activity of the spinal cord
|
Active Comparator: SAS50
The paired stimulation (SAS) will be comprised of patient adjusted subthreshold TMS (80% of resting motor threshold over optimal site for soleus muscle), delivered 50ms prior to a peripheral nerve stimulus in the popliteal fossa and will be repeated at 0.1 Hz for 15 minutes (90 stimuli pairs).
|
Method of assessing neurophysiology and activity of the spinal cord
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Change in H-Reflex Threshold
Time Frame: Baseline compared with immediately after intervention
|
Assessment of muscle reaction after stimulation of sensory fibers
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Baseline compared with immediately after intervention
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Lower Extremity Motor Score (LEMS)
Time Frame: Baseline, immediately after intervention
|
Assessment of lower extremity strength in key muscles; maximal score of 50 with 20 or less indicating participant likely has limited ambulation.
|
Baseline, immediately after intervention
|
Walking Index for Spinal Cord Injury (WISCI II)
Time Frame: Baseline, immediately after intervention
|
This is a functional capacity scale that rank orders ambulation in people with spinal cord injury, by evaluating the amount of physical assistance, braces or devices required to walk 10 meters.
Rank scores range from 0-20.
A higher score is indicative of more independent ambulation.
|
Baseline, immediately after intervention
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10 Meter Walk Test
Time Frame: Baseline, immediately after intervention
|
Measure of gait speed
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Baseline, immediately after intervention
|
Spinal Cord Independence Measure, Version 3 (SCIM III)
Time Frame: Baseline, immediately after intervention
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A disability rating scale developed to specifically address the ability of SCI patients to perform basic activities of daily living independently (including self-care, mobility, respiration and sphincter management)
|
Baseline, immediately after intervention
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Muscle Force
Time Frame: Baseline, immediately after intervention
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Amount of force recorded during maximal voluntary isometric contraction of a grip movement, recorded with a grip strength measurement device.
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Baseline, immediately after intervention
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Anklebot
Time Frame: Baseline, immediately after intervention
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Lower extremity robotic device that provides kinematic evaluation data
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Baseline, immediately after intervention
|
Collaborators and Investigators
Sponsor
Collaborators
Investigators
- Study Director: Kathleen Friel, PhD, Burke Medical Research Institute
Publications and helpful links
General Publications
- Pascual-Leone A. Disrupting the brain to guide plasticity and improve behavior. Prog Brain Res. 2006;157:315-329. doi: 10.1016/s0079-6123(06)57019-0.
- Deletis V, Schild JH, Beric A, Dimitrijevic MR. Facilitation of motor evoked potentials by somatosensory afferent stimulation. Electroencephalogr Clin Neurophysiol. 1992 Oct;85(5):302-10. doi: 10.1016/0168-5597(92)90106-l.
- Hiersemenzel LP, Curt A, Dietz V. From spinal shock to spasticity: neuronal adaptations to a spinal cord injury. Neurology. 2000 Apr 25;54(8):1574-82. doi: 10.1212/wnl.54.8.1574.
- Kumru H, Vidal J, Kofler M, Benito J, Garcia A, Valls-Sole J. Exaggerated auditory startle responses in patients with spinal cord injury. J Neurol. 2008 May;255(5):703-9. doi: 10.1007/s00415-008-0780-3. Epub 2008 Feb 21.
- Rothwell JC. Techniques and mechanisms of action of transcranial stimulation of the human motor cortex. J Neurosci Methods. 1997 Jun 27;74(2):113-22. doi: 10.1016/s0165-0270(97)02242-5.
- Kofler M, Valls-Sole J, Fuhr P, Schindler C, Zaccaria BR, Saltuari L. Sensory modulation of voluntary and TMS-induced activation in hand muscles. Exp Brain Res. 2008 Jul;188(3):399-409. doi: 10.1007/s00221-008-1372-2. Epub 2008 Apr 18.
- Pascual-Leone A, Tarazona F, Keenan J, Tormos JM, Hamilton R, Catala MD. Transcranial magnetic stimulation and neuroplasticity. Neuropsychologia. 1999 Feb;37(2):207-17. doi: 10.1016/s0028-3932(98)00095-5.
- Serranova T, Valls-Sole J, Munoz E, Genis D, Jech R, Seeman P. Abnormal corticospinal tract modulation of the soleus H reflex in patients with pure spastic paraparesis. Neurosci Lett. 2008 May 23;437(1):15-9. doi: 10.1016/j.neulet.2008.03.068. Epub 2008 Mar 28.
- Boorman G, Becker WJ, Morrice BL, Lee RG. Modulation of the soleus H-reflex during pedalling in normal humans and in patients with spinal spasticity. J Neurol Neurosurg Psychiatry. 1992 Dec;55(12):1150-6. doi: 10.1136/jnnp.55.12.1150.
- Poon DE, Roy FD, Gorassini MA, Stein RB. Interaction of paired cortical and peripheral nerve stimulation on human motor neurons. Exp Brain Res. 2008 Jun;188(1):13-21. doi: 10.1007/s00221-008-1334-8. Epub 2008 Mar 11.
- Stefan K, Kunesch E, Benecke R, Cohen LG, Classen J. Mechanisms of enhancement of human motor cortex excitability induced by interventional paired associative stimulation. J Physiol. 2002 Sep 1;543(Pt 2):699-708. doi: 10.1113/jphysiol.2002.023317.
- Ridding MC, McKay DR, Thompson PD, Miles TS. Changes in corticomotor representations induced by prolonged peripheral nerve stimulation in humans. Clin Neurophysiol. 2001 Aug;112(8):1461-9. doi: 10.1016/s1388-2457(01)00592-2.
- Valls-Sole J, Alvarez R, Tolosa ES. Responses of the soleus muscle to transcranial magnetic stimulation. Electroencephalogr Clin Neurophysiol. 1994 Dec;93(6):421-7. doi: 10.1016/0168-5597(94)90148-1.
- Hoffken O, Veit M, Knossalla F, Lissek S, Bliem B, Ragert P, Dinse HR, Tegenthoff M. Sustained increase of somatosensory cortex excitability by tactile coactivation studied by paired median nerve stimulation in humans correlates with perceptual gain. J Physiol. 2007 Oct 15;584(Pt 2):463-71. doi: 10.1113/jphysiol.2007.140079. Epub 2007 Aug 16.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
- BRC391
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
IPD Plan Description
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
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