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Clinical Trial NCT07223710 for Spinal Cord Injury is not yet recruiting. See the Trial Radar Card View and AI discovery tools for all the details. Or ask anything here.
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Improving Walking After Spinal Cord Injury Phase 1, Phase 2 20 Novel Treatment

Not yet recruiting
Clinical Trial NCT07223710 is designed to study Treatment for Spinal Cord Injury. This Phase 1 Phase 2 interventional study is not yet recruiting. Enrollment is planned to begin on 15 November 2025 until the study accrues 20 participants. Led by Shirley Ryan AbilityLab, this study is expected to complete by 30 July 2026. The latest data from ClinicalTrials.gov was last updated on 3 November 2025.
Brief Summary
Locomotor recovery is one of the most important goals of individuals with spinal cord injury (SCI). Ambulatory deficits severely impact daily functions resulting in lower quality of life for people living with paralysis due to SCI. Although studies have shown that locomotor training improves locomotor function in people with chronic SCI, the benefits remain limited. Our overall hypothesis is that we can engage additi...Show More
Detailed Description
Individuals with chronic incomplete SCI will be randomly assigned to a group that will receive 10 sessions of a startle stimulus (a very brief, loud sound) and electrical stimulation combined with locomotor training or 10 sessions of a non-startle stimulus (a very brief, soft sound) combined with locomotor training.
Official Title

Engaging Reticulospinal Inputs to Improve Walking Ability in Humans With Spinal Cord Injury

Conditions
Spinal Cord Injury
Other Study IDs
NCT ID Number
Start Date (Actual)
2025-11-15
Last Update Posted
2025-11-03
Completion Date (Estimated)
2026-07-30
Enrollment (Estimated)
20
Study Type
Interventional
PHASE
Phase 1
Phase 2
Status
Not yet recruiting
Keywords
auditory stimulation
peripheral stimulation
locomotion training
descending motor tracts
Primary Purpose
Treatment
Design Allocation
Randomized
Interventional Model
Parallel
Masking
Single
Arms / Interventions
Participant Group/ArmIntervention/Treatment
ExperimentalLocomotor training + PAS
This intervention uses repeated paired loud auditory and electrical stimulation of muscle afferents combined with locomotor training. Participants will exercise walking on a treadmill with body weight support as needed for 30 minutes a day at a moderate intensity. While walking, participants will receive brief loud auditory stimuli through headphones and short electrical pulses through of electrodes positioned on tw...Show More
Paired Associative Stimulation
This new intervention consists of locomotor training in combination with paired low-intensity electrical stimulation and stimulation of the reticulospinal tract through loud sounds. Participants will receive auditory stimulation (LAS, 110dB, 500Hz, 50ms) through headphones and electrical stimulation through a pair of electrodes with 2cm inter-electrode distance positioned on the motor point over the quadriceps and th...Show More
Locomotor Training
Participants will walk on a treadmill with body-weight support (ZeroG, Aretech) in the range 0-70% as needed to prevent excessive knee flexion during stance phase or toe dragging during swing phase (Finch et al. 1991). Each session will last approximately 60-min and the duration of the treadmill training will be timed to be 30 min. Subjects will be encouraged to walk at a self-selected speed at or above 0.1m/s. Speed...Show More
Sham ComparatorLocomotor training + SHAM
This sham intervention uses repeated paired soft auditory clicks and electrical stimulation of muscle afferents combined with locomotor training. Participants will exercise walking on a treadmill with body weight support as needed for 30 minutes a day at a moderate intensity. While walking, participants will receive brief auditory clicks through headphones and short electrical pulses through a pair of electrodes pos...Show More
Locomotor Training
Participants will walk on a treadmill with body-weight support (ZeroG, Aretech) in the range 0-70% as needed to prevent excessive knee flexion during stance phase or toe dragging during swing phase (Finch et al. 1991). Each session will last approximately 60-min and the duration of the treadmill training will be timed to be 30 min. Subjects will be encouraged to walk at a self-selected speed at or above 0.1m/s. Speed...Show More
Sham stimulation
Participants will receive brief low-intensity auditory clicks (80dB, 500Hz, 50ms) through headphones and electrical stimulation through a pair of electrodes with 2cm inter-electrode distance positioned on the motor point over the quadriceps and the tibialis anterior muscles bilaterally. The motor point will be identified as the position of the electrodes that elicits a small visible muscle twitch or muscle contractio...Show More
Primary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
10-meter walk test (10MWT)
This standardized test assesses walking speed in meters per second over a short duration.
baseline and day 12
Secondary Outcome Measures
Outcome MeasureMeasure DescriptionTime Frame
Motor Evoked Potentials conditioned with Startle (MEP-LAS)
Motor Evoked Potentials (MEPs) will be recorded from multiple leg muscles following transcranial magnetic stimulation over the leg representation of the primary motor cortex and electrical stimulation over the thoracic spine. Loud auditory Stimuli (LAS, 110dB, 500Hz, 50ms) will be delivered 50ms before magnetic stimulation to test for cortical effects of the intervention and 80ms before the electrical stimulation to test for subcortical effects of the intervention. Stimulation intensity will be adjusted to obtain unconditioned MEPs of \~50% of the maximum MEP for each muscle.
Baseline and day 12
Maximum Voluntary Contraction (MVC)
This will be measured on the electromyographic signal recorded during maximal isometric contractions. Participants will perform three maximal contractions against resistance into knee flexion and extension, dorsiflexion, and plantarflexion. Electromyographic activity will be monitored using surface electrodes placed on the belly of the quadriceps femoris, hamstrings, tibialis anterior, and soleus muscles bilaterally. The MVC will be quantified as the maximum value of the average over 1s of activity in each of the repetitions.
Baseline and day 12
Maximal motor response (M-max)
M-max will be elicited in the quadriceps femoris, tibialis anterior, soleus and foot muscles by applying percutaneous electrical stimulation over the femoral, common peroneal and the tibial and the medial plantar nerve, respectively using 200μs rectangular electrical stimulus. The intensity of stimulation will be increased progressively until M-max is reached.
Baseline and day 12
StartReact response
Participants will be asked to observe a light-emitting diode (LED) located \~1 m in front of the participants' head and will be wearing headphones. When the LED will illuminate (20 ms), individuals will be asked to perform an isometric knee flexion/extension and/or ankle dorsi/plantarflexion as fast as possible. Reaction times will be evaluated following a visual cue either alone (20 trials) or paired with a non-startling (80dB, 500Hz, 50ms, 20 trials) or a startling (110dB, 500Hz, 50ms, 20 trials) auditory cue. Stimuli will be delivered every 5s in a randomized order. Target muscles will be quadriceps femoris, hamstrings, tibialis anterior, and soleus muscles of the weaker leg. The StartReact response will be computed as the difference between the reaction times during a non-startling and startling auditory cue
Baseline and day 12
Spasticity
We will use the Modified Ashworth scale (six-point ordinal scale, 0-4) to measure resistance encountered during manual passive muscle stretching.
Baseline and day 12
SCI-QOL
Is a battery of questionnaires evaluating the quality of life. Will be used to measure the participant-related following aspects: (a) Ambulation: This questionnaire will ask the participant about their ability to do thing like walk, run and jump. (b) Basic Mobility: This questionnaire will ask the participant about their ability to perform their daily routine. (c) Fine Motor: This questionnaire will ask the participant about their ability to pick up small objects. (d) Manual and Power Wheelchair Mobility: This questionnaire ask the participant about their ability using a wheelchair. (e) Self-Care: This questionnaire will ask the participant about their ability to do activities of daily living such as getting dressed, bathing, and eating.
Baseline and day 12
Participation Assistant
Eligibility Criteria

Eligible Ages
Adult, Older Adult
Minimum Age
18 Years
Eligible Sexes
All
  • History of traumatic or non-traumatic SCI ≥ 6 months
  • International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI) level at and above T10.
  • American Spinal Injury Association AIS Grade C, or D
  • Weakness in ankle dorsiflexors (LEMS<=3) with the ability to perform a small voluntary ankle dorsiflexion (as detected by presence of voluntary EMG activity in the tibialis anterior) with at least one leg.
  • Ability to tolerate standing position.
  • Ability to walk at a minimum speed of 0.1 mile/hour on a treadmill with less than 70% body weight support.
  • Requires use of assistive devices (KAFO, AFO, cane, walker) or body weight support for ambulation.
  • Ability to complete the 10-Meter Walk Test.

  • Preceding uncontrolled medical conditions including pulmonary, cardiovascular or orthopedic disease that interfere with physical performance.
  • Intolerance to physical activity.
  • Severe cognitive impairment that precludes the ability to participate in any of the study procedures or give verbal consent.
  • Any illness or condition that based on the research team's assessment, will compromise with the patient's ability to comply with the protocol, patient safety, or the validity of the data collected during the study.
  • History of stroke resulting in sensory motor deficits.
  • Pregnant women.
  • Participation in a high-intensity locomotor training program in the last 6 months.
  • Inability to detect somatosensory evoked potentials
  • Metal implant in the head
  • History of epilepsy
Shirley Ryan AbilityLab logoShirley Ryan AbilityLab
Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD) logoEunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)
Study Responsible Party
Dalia DeSantis, Principal Investigator, Research Scientist, Shirley Ryan AbilityLab
Study Central Contact
Contact: Dalia De Santis, 312-238-7895, [email protected]
1 Study Locations in 1 Countries

Illinois

Shirley Ryan AbilityLab, Chicago, Illinois, 60611, United States
Dalia De Santis, Contact, 312-238-7895, [email protected]
Dalia De Santis, PhD, Principal Investigator
Monica Perez, PT, PhD, Sub-Investigator