CClinicalTrials.gg
TerminatedNCT01498991AMESUpdated May 24, 2019Results posted

Spinal Cord Injury Leg Rehabilitation

A Phase 1/2 interventional study of AMES Treatment in Spinal Cord Injury, Paraplegia and Quadriplegia, sponsored by Oregon Health and Science University. Terminated at 2 sites in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2019-05-24.

Sponsored by Oregon Health and Science University · Phase 1/2, Interventional, and Treatment

Phase
Phase 1/2
Study type
Interventional
Enrollment
2
Allocation
Not applicable
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The purpose of this study is to determine if individuals with incomplete spinal cord injury (SCI) who remain unable to walk normally 1 year after their SCIs are able to sense and move the affected legs better after 10-13 weeks of treatment with a new robotic therapy device.

The hypothesis is that using the AMES device on the legs of chronic subjects with incomplete SCI will result in improved strength, sensation in the legs, and improved functional gait in the treated limbs.

Read the detailed description

Traumatic spinal cord injury (SCI) affects over 200,000 people in the USA, with several thousand new injuries each year. Most recovery, following SCI, occurs in the six months following surgery. Further recovery after 12 months is unusual.

In this study 10 subjects, more than 1 year post injury, will be enrolled to test the safety and efficacy of a new type of robotic therapy device known as the AMES device. The aim of this Phase I/II study is to investigate the use of assisted movement and enhanced sensation (AMES) technology in the rehabilitation of the legs of participants with incomplete SCI.

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Conditions studied

  • Spinal Cord Injury
  • Paraplegia
  • Quadriplegia
  • Tetraplegia

Keywords

  • Incomplete Spinal Cord Injury
  • Rehabilitation
  • AMES device
  • Lower Extremity
  • Gait
  • Paraplegia
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In context

Spinal Cord Injuries

1,950 studies on the registry are indexed under Spinal Cord Injuries; 507 are open to participants now.

This study's enrollment of 2 is below the median of 24 across 1,567 interventional studies indexed under Spinal Cord Injuries.

Browse Spinal Cord Injuries studies →

Lead sponsor

Oregon Health and Science University is the lead sponsor of 676 studies on the registry; 136 are open to participants now.

Of its 49 completed or terminated interventional studies of FDA-regulated products, 36 (73%) have results posted.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Paraplegia or tetraplegia due to SCI
  • At least 1 year post incomplete Spinal Cord Injury
  • Can tolerate sitting upright for at least one hour
  • Capable of weight-bearing and taking a step with or without an assistive device
  • On the ASIA sensory function (light touch), a score of at least 1 at the L4 and L5 level
  • Primary ASIA Motor Criterion (PAMC) a total score of 4-12 for hip extensors, knee extensors, ankle dorsiflexors and ankle plantarflexors, with a minimum score of 1 for each of these muscles in the qualifying leg

Exclusion criteria

Exclusion Criteria:

  • Fracture of the treated limb resulting in loss of range of motion
  • Concomitant TBI or stroke (Patients who sustained mild head injury during the trauma with no evidence of structural abnormalities on brain images will qualify for the study), or other neurological injury or disease
  • DVT of the treated extremity
  • Peripheral nerve injury of the treated extremity
  • Osteo- or rheumatoid-arthritis limiting range of motion
  • Contractures equal to or greater than 50% of the normal ROM
  • Skin condition not tolerant of device or sitting upright
  • Progressive neurodegenerative disorder
  • Botox treatment of the treated extremity in the prior 5 month
  • Chronic ITB therapy
  • Uncontrolled seizure disorder
  • Uncontrolled high blood pressure/angina
  • Pain in affected limb or exercise intolerance
  • Participation in another therapy or activity-based program
  • Combined score on ASIA motor function for knee extensors, ankle dorsiflexors and ankle plantarflexors outside the range of 3-9
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Study design

Phase
Phase 1 / Phase 2
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
2 participants (actual)

Study arms

  • Experimental
    AMES Treatment

    The subject will receive 30 treatment sessions, conducted 3-4 times per week on the AMES device. Each session will consist of testing followed by 40 minutes of treatment time (20 minutes per each leg) using the AMES device.

    Device: AMES Treatment

Interventions

  • DeviceAMES Treatment

    The AMES device rotates the ankle over a range of 30 degrees while vibrators stimulate the tendons attached to muscles that move the leg. Each participant will receive treatment of both lower extremities. Treatment of the 2 legs will be scheduled to run in the same session. The subject's task is to assist the motion of the device. The AMES treatment device couples assisted movement and tendon vibration (enhanced sensation) in 30 treatments which will each run approximately 40 minutes (20 minutes on the right leg and 20 minutes on the left leg).

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What researchers measure

Primary outcomes

  1. Gait Velocity

    Measured by the GAITRite system

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

Secondary outcomes

  1. Vibration Threshold Test

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

  2. Modified Ashworth Scale

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

  3. Timed 10-Meter Walk Test

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

  4. Gait Assessment Including Step Length and Cadence

    Measured by the GAITRite system

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

  5. Ankle Active Motion Test

    The participants will perform an active range-of-motion (ROM) task each time they are treated with the AMES device, in which they move the affected joint to several target joint angles, guided by visual feedback on a display screen on the AMES device.

    Time frame: Prior to each treatment session, on average 3 times a week

  6. Ankle Strength

    The AMES device will test the affected ankle in each direction for maximum strength of voluntary contraction .

    Time frame: Prior to each treatment session, on average 3 times a week

  7. ASIA Motor and Sensory Scores for L2-S1

    Time frame: Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

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Results

Posted May 24, 2019
Limitations and caveats
The study was not funded and, therefore, enrollment was terminated and the data were not analyzed.

Participant flow

Participant flow — Overall Study
MilestoneAMES Treatment
Started2
Completed2
Not completed0

Outcome measures

PrimaryGait Velocity

Measured by the GAITRite system

Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

SecondaryVibration Threshold Test
Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

SecondaryModified Ashworth Scale
Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

SecondaryTimed 10-Meter Walk Test
Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

SecondaryGait Assessment Including Step Length and Cadence

Measured by the GAITRite system

Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

SecondaryAnkle Active Motion Test

The participants will perform an active range-of-motion (ROM) task each time they are treated with the AMES device, in which they move the affected joint to several target joint angles, guided by visual feedback on a display screen on the AMES device.

Time frame:
Prior to each treatment session, on average 3 times a week

No measurements were reported for this outcome.

SecondaryAnkle Strength

The AMES device will test the affected ankle in each direction for maximum strength of voluntary contraction .

Time frame:
Prior to each treatment session, on average 3 times a week

No measurements were reported for this outcome.

SecondaryASIA Motor and Sensory Scores for L2-S1
Time frame:
Baseline (pre-treatment), Post-Treatment change from Baseline ( average 13 weeks), 3 months following completion of treatments (average 26 weeks from Baseline).

No measurements were reported for this outcome.

Adverse events

Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
AMES Treatment—0/2 (0%)0/2 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)AMES Treatment
Mean30 ± 1.5
Sex: Female, Male
Sex: Female, Male(Participants)AMES Treatment
Female1
Male1
Race (NIH/OMB)
Race (NIH/OMB)(Participants)AMES Treatment
American Indian or Alaska Native0
Asian1
Native Hawaiian or Other Pacific Islander0
Black or African American0
White1
More than one race0
Unknown or Not Reported0
Region of Enrollment
Region of Enrollment(participants)AMES Treatment
United States2
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Study locations

2 sites
  • Shepherd Center, Crawford Research Center
    Atlanta, Georgia 30309, United States
  • Oregon Health and Science University
    Portland, Oregon 97239, United States
09

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on May 24, 2019, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT01498991
Lead sponsor
Oregon Health and Science University
Collaborators
Shepherd Center, Atlanta GA, National Institute of Neurological Disorders and Stroke (NINDS)
Responsible party
Paul J. Cordo (Study Principal Investigator, Oregon Health and Science University) — Principal investigator
First posted
Dec 26, 2011
Start date
Nov 2011
Primary completion
Nov 2016
Completion
Nov 2016
Results posted
May 24, 2019
Last update
May 24, 2019

Study contacts

Paul J Cordo, PhD
study director · Oregon Health and Science University
Andrew Nemecek, MD
principal investigator · Oregon Health and Science University
Deborah Backus, PT, PhD
principal investigator · Shepherd Center, Atlanta GA

Oversight

Data monitoring committee
Yes
View the source record on ClinicalTrials.gov ↗

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This study is terminated, as verified in May 2019. You cannot join it, but the record below documents what was studied.

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