NCT03592173

Brief Summary

The purpose of this study is to determine if spinal excitability is increased with a Spinal Associative Stimulation (SAS) protocol, and to determine the functional consequences of this technique on motor recovery.

Trial Health

55
Monitor

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Trial has exceeded expected completion date
Enrollment
30

participants targeted

Target at P25-P50 for phase_2

Timeline
Completed

Started Jul 2013

Longer than P75 for phase_2

Geographic Reach
1 country

1 active site

Status
active not recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2013

Completed
4.9 years until next milestone

First Submitted

Initial submission to the registry

May 16, 2018

Completed
2 months until next milestone

First Posted

Study publicly available on registry

July 19, 2018

Completed
7.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2025

Completed
3 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 1, 2025

Completed
Last Updated

August 6, 2024

Status Verified

August 1, 2024

Enrollment Period

12.2 years

First QC Date

May 16, 2018

Last Update Submit

August 5, 2024

Conditions

Outcome Measures

Primary Outcomes (1)

  • Change in H-Reflex Threshold

    Assessment of muscle reaction after stimulation of sensory fibers

    Baseline compared with immediately after intervention

Secondary Outcomes (6)

  • Lower Extremity Motor Score (LEMS)

    Baseline, immediately after intervention

  • Walking Index for Spinal Cord Injury (WISCI II)

    Baseline, immediately after intervention

  • 10 Meter Walk Test

    Baseline, immediately after intervention

  • Spinal Cord Independence Measure, Version 3 (SCIM III)

    Baseline, immediately after intervention

  • Muscle Force

    Baseline, immediately after intervention

  • +1 more secondary outcomes

Study Arms (3)

SAS20

EXPERIMENTAL

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).

Diagnostic Test: Paired TMS & Peripheral Nerve Stimulation

SAS0

ACTIVE COMPARATOR

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).

Diagnostic Test: Paired TMS & Peripheral Nerve Stimulation

SAS50

ACTIVE COMPARATOR

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).

Diagnostic Test: Paired TMS & Peripheral Nerve Stimulation

Interventions

Method of assessing neurophysiology and activity of the spinal cord

SAS0SAS20SAS50

Eligibility Criteria

Age18 Years - 80 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • 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).

You may not qualify if:

  • 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.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Burke Medical Research Institute

White Plains, New York, 10605, United States

Location

Related Publications (14)

  • 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.

    PMID: 17167918BACKGROUND
  • 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.

    PMID: 1385090BACKGROUND
  • 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.

    PMID: 10762496BACKGROUND
  • 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.

    PMID: 18286318BACKGROUND
  • 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.

    PMID: 9219881BACKGROUND
  • 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.

    PMID: 18421450BACKGROUND
  • 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.

    PMID: 10080378BACKGROUND
  • 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.

    PMID: 18434014BACKGROUND
  • 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.

    PMID: 1479394BACKGROUND
  • 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.

    PMID: 18330548BACKGROUND
  • 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.

    PMID: 12205201BACKGROUND
  • 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.

    PMID: 11459686BACKGROUND
  • 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.

    PMID: 7529691BACKGROUND
  • 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.

    PMID: 17702814BACKGROUND

MeSH Terms

Conditions

Spinal Cord Injuries

Condition Hierarchy (Ancestors)

Spinal Cord DiseasesCentral Nervous System DiseasesNervous System DiseasesTrauma, Nervous SystemWounds and Injuries

Study Officials

  • Kathleen Friel, PhD

    Burke Medical Research Institute

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
phase 2
Allocation
RANDOMIZED
Masking
NONE
Purpose
TREATMENT
Intervention Model
CROSSOVER
Model Details: Thirty chronic SCI participants will given the SAS intervention and a control intervention in a randomized cross-over study, with at least one week between interventions. Each patient will be required to attend the Burke Medical Research Institute on three occasions. We will use a within-subjects design, to test changes in neurophysiologic and voluntary measures after intervention with respect to baseline.
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Laboratory Director

Study Record Dates

First Submitted

May 16, 2018

First Posted

July 19, 2018

Study Start

July 1, 2013

Primary Completion

September 1, 2025

Study Completion

December 1, 2025

Last Updated

August 6, 2024

Record last verified: 2024-08

Data Sharing

IPD Sharing
Will not share

There is no plan to make individual participant data available to other researchers at this time.

Locations