MEP Up-conditioning for Spinal Cord Injury

This study is looking at a new training method called "MEP Up-conditioning" for people with chronic spinal cord injury (SCI) that affects their neck (cervical SCI). The training involves non-invasive brain stimulation and feedback to help strengthen the connection between the brain, spinal cord, and wrist extensor muscles. Researchers want to see if this training can improve how well you can move your arm and hand. They will also use brain and spine MRI scans before and after the training to understand how spinal damage and brain function relate to movement and how people respond to the training. You might be able to join if you are an adult, had a spinal cord injury at or above C6 more than 6 months ago, and have some weakness in your wrist extension.

Study design
This is an interventional study with a planned enrollment of 11 participants. The study is not specified as randomized, blinded, or a particular phase.
What's involved
You would participate in a 10-week training protocol. This includes sessions where electrodes are placed on your arm to measure muscle responses and you receive non-invasive brain stimulation. Brain and spine MRI scans will be collected before and after the training.
Compensation
Not stated in the trial record.
Follow-up
The primary endpoint measures are taken as an average of the last 6 conditioning sessions (over weeks 8-10), indicating follow-up throughout the 10-week training period.

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NCT06989905

MEP Up-conditioning to Target Corticospinal Plasticity

Recruiting
EARLY_PHASE1Ages 18+InterventionalTreatment
Medical University of South Carolina
~11 participants
Updated 2026-03-30 on ClinicalTrials.gov
What's tested:Up-conditioning of the wrist extensor motor evoked potential

At a glance

Recruiting sites
1 of 1 listed site is recruiting right now
RecruitingSuspended, closed, or not yet open
What they're measuring
Extensor Carpi Radialis (ECR) Motor Evoked Potential (MEP) amplitude
Measured over Reported as an average of the 6 baseline sessions (over weeks 1-2) and average of the last 6 conditioning sessions (over weeks 8-10)
Spinal Cord Injury
Tetraplegia/Tetraparesis
1 sites across 1 states
South Carolina1
  • Allison Lewis, DPT, PhD · PRINCIPAL_INVESTIGATOR · Medical University of South Carolina

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Eligibility criteria

Inclusion

Adult (≥18 yrs old)
A history of injury to spinal cord at or above C6
\>6 months post SCI
Weak wrist extension at least unilaterally
Expectation that current medication will be maintained without change for at least 3 months. Stable use of anti-spasticity medication (e.g., baclofen, diazepam, tizanidine) is accepted.

Exclusion

Motoneuron injury
Medically unstable condition
Cognitive impairment
A history of epileptic seizures
Metal implants in the cranium
Implanted biomedical device in or above the chest (e.g., a cardiac pacemaker, cochlear implant)
Extensive use of functional electrical stimulation to the arm on a daily basis
Pregnancy (due to changes in posture and potential medical instability)
Contraindications to MRI
No measurable MEP elicited in the ECR
Unable to produce any voluntary ECR EMG activity
  • Extensor Carpi Radialis (ECR) Motor Evoked Potential (MEP) amplitudeReported as an average of the 6 baseline sessions (over weeks 1-2) and average of the last 6 conditioning sessions (over weeks 8-10)

    Size of MEP elicited at the fixed stimulus intensity (e.g., \~ 10-15% maximum stimulator output) of transcranial magnetic stimulation (TMS) above motor threshold) (in %M wave maximum amplitude)