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CompletedNCT01237860L300PlusUpdated Nov 16, 2011

Evaluation of the Safety and Performance of the NESS L300 Plus System

A Phase 3 interventional study of NESS L300 Plus System in Foot Drop, Thigh Muscles Weakness (Hamstrings or Quadriceps) and Upper Motor Neuron Injury or Disease, sponsored by Bioness Inc. Completed at 1 site in Israel. Open to participants aged 18 Years to 80 Years. Per ClinicalTrials.gov, last updated 2011-11-16.

Sponsored by Bioness Inc · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
45
Allocation
Non-randomized
Ages
18 Years to 80 Years
Sex
All
01

Study summary

The study is designed to evaluate the safety and efficacy of using the L300 Plus as a neuroprosthesis device for walking in patients following an UMN injury or disease. The clinical study is proposed to determine the anticipated adverse event rate and treatment outcomes at the conclusion of the study.

Read the detailed description

This is a prospective, one-center, single group, repeated measures, non inferiority study. Forty-five (45) subjects suffering from foot drop and thigh muscles weakness due to upper motor neuron injury or disease will be evaluated for this study. Each subject will be in the study for six weeks. Clinical benefits will be measured through an assessment of the gait performance. In particular it will test the hypothesis that the NESS L300 Plus System which involves foot drop correction with thigh muscles activation, may achieve walking enhancements not inferior to those gained from using a system that only corrects foot drop (i.e. NESS L300).

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Conditions studied

  • Foot Drop
  • Thigh Muscles Weakness (Hamstrings or Quadriceps)
  • Upper Motor Neuron Injury or Disease

Keywords

  • Foot drop
  • Thigh muscle weakness
  • Upper Motor Neuron injury or disease
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In context

Muscle Weakness

601 studies on the registry are indexed under Muscle Weakness; 99 are open to participants now.

This study's planned enrollment of 45 is close to the median of 46 across 444 interventional studies indexed under Muscle Weakness.

Browse Muscle Weakness studies →

Lead sponsor

Bioness Inc is the lead sponsor of 8 studies on the registry; none are open to participants now.

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

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Who can participate

Ages eligible
18 Years to 80 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Upper motor neuron lesion
  • Thigh muscle weakness - hamstrings or quadriceps strength of less than 4/5 according to manual muscle testing
  • Foot drop - toe drag during walking
  • Lower limb spasticity - 0-4 according to the modified Ashworth scale
  • Responsible mental state, able to follow multiple step directions
  • Between 18 and 80 years old
  • Available for participation in the study
  • Able to understand and sign the informed consent form
  • Able to walk independently or with an assistance device (e.g. cane, walker etc.) / spot guarding for at least 10 meters
  • Sufficient response to electrical stimulation (visible muscle contractions in a seated or prone position of each designated muscle separately)

Exclusion criteria

Exclusion Criteria:

  • Subjects with a demand-type cardiac pacemaker, defibrillator or any electrical or metallic implant
  • Cancerous lesion of lower limb, present or suspected
  • Medical condition that prevents participation or would likely lead to inability to comply with the protocol [e.g.: congestive heart failure, patient receiving chemotherapy, uncontrolled epilepsy, etc]
  • Severe cognitive impairment (MMSE\<21)
  • Severe neglect (Star cancellation test\<30)
  • Skin lesion at the site of the stimulation electrodes
  • Change in bone-joint structures of the lower limb, such as contractures or deformations; fracture or dislocation, which would be adversely affected by motion from the stimulation
  • Pregnancy
  • Diagnosis of major depression or psychotic disorder
  • Participation in another investigation that may directly or indirectly affect the study results
  • Unable to tolerate electrical stimulation
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Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
Single (Outcomes assessor)
Enrollment
45 participants (estimated)

Interventions

  • DeviceNESS L300 Plus System

    The patients will receive the device for daily use of six (6) weeks.

    Also known as: NESS L300, L300, L300 Plus

06

What researchers measure

Primary outcomes

  1. Occurence of anticipated and unanticipated adverse events

    The occurence of anticipated and unanticipated events will be documented at each scheduled evaluation. In addition, subjects will be instructed to report adverse events 24 hours per day during the study period.

    Time frame: Throughout the 6 weeks of the study

  2. Subject feedback regarding the safety of using the device

    Patient feedback regarding the safety of using the device as reported during the study sessions and the completion of a satisfaction questionnaire will also be used to assess the system's safety.

    Time frame: Week 6

Secondary outcomes

  1. Temporal Gait Parameters of the 2 Minute Walk Test

    This outcome measure includes the following: gait velocity, gait asymmetry, single limb support (percentage of the singe stance phase).

    Time frame: Week 1 and Week 6

  2. 10 Meter Obstacle Course Walking Velocity

    To imitate daily life situations, average gait speed will be also determine by measuring the time to walk 10m over an obstacle course, using the protocol in the Emory Functional Ambulation Profile.

    Time frame: Week 1 and Week 6

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Study locations

1 site
  • Reuth Medical Center
    Tel-Aviv, Israel
08

References and documents

Publications

  • Bonita R, Solomon N, Broad JB. Prevalence of stroke and stroke-related disability. Estimates from the Auckland stroke studies. Stroke. 1997 Oct;28(10):1898-902. doi: 10.1161/01.str.28.10.1898. PubMed 9341692 ↗
  • Robbins SM, Houghton PE, Woodbury MG, Brown JL. The therapeutic effect of functional and transcutaneous electric stimulation on improving gait speed in stroke patients: a meta-analysis. Arch Phys Med Rehabil. 2006 Jun;87(6):853-9. doi: 10.1016/j.apmr.2006.02.026. PubMed 16731222 ↗
  • Glanz M, Klawansky S, Stason W, Berkey C, Chalmers TC. Functional electrostimulation in poststroke rehabilitation: a meta-analysis of the randomized controlled trials. Arch Phys Med Rehabil. 1996 Jun;77(6):549-53. doi: 10.1016/s0003-9993(96)90293-2. PubMed 8831470 ↗
  • Yan T, Hui-Chan CW, Li LS. Functional electrical stimulation improves motor recovery of the lower extremity and walking ability of subjects with first acute stroke: a randomized placebo-controlled trial. Stroke. 2005 Jan;36(1):80-5. doi: 10.1161/01.STR.0000149623.24906.63. Epub 2004 Nov 29. PubMed 15569875 ↗
  • Hausdorff JM, Ring H. Effects of a new radio frequency-controlled neuroprosthesis on gait symmetry and rhythmicity in patients with chronic hemiparesis. Am J Phys Med Rehabil. 2008 Jan;87(1):4-13. doi: 10.1097/PHM.0b013e31815e6680. PubMed 18158427 ↗
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Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Nov 16, 2011, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
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Registry details

Key details

Study ID
NCT01237860
Lead sponsor
Bioness Inc
Collaborators
Bioness Neuromodulation
Responsible party
Sponsor
First posted
Nov 10, 2010
Start date
Sep 2010
Primary completion
Jan 2011
Completion
Jan 2011
Last update
Nov 16, 2011

Study contacts

Jean-Jacques Vatine, MD
principal investigator · Reuth Rehabilitation Hospital

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Nov 2011. You cannot join it, but the record below documents what was studied.

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