Improving Ambulatory Community Access After Paralysis

NCT ID: NCT01570816

Last Updated: 2018-03-14

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

UNKNOWN

Clinical Phase

PHASE1

Total Enrollment

6 participants

Study Classification

INTERVENTIONAL

Study Start Date

2012-04-30

Study Completion Date

2021-07-31

Brief Summary

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The purpose of this research study is to evaluate the effectiveness of functional electrical stimulation (FES) provided by an implanted pulse generator (IPG) in correcting hip, knee and ankle function to improve walking in people with partial paralysis.

Detailed Description

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In a surgical procedure electrodes are inserted into muscles of the lower extremities to correct hip, knee and ankle function. The electrode leads are connected to an implanted pulse generator located in the abdomen. After a typical post-operative period of two to five days, the recipient will be discharged home for two to six weeks of moderate activity. Following a 6 week period of laboratory exercise and training, functional use of the neuroprosthesis will begin at home and in the community with follow-up evaluations at 1, 3, 6 and 12 months. Laboratory assessments include walking speed and distance, physiologic cost, muscle strength, measure of spasticity, and gait analysis with and without stimulation. A number of self-reporting instruments are administered to capture individual's participation, quality of life and various aspects of perceived community ambulation.

Conditions

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Stroke Partial Paralysis Spinal Cord Injury Tetraplegia Quadriplegia

Study Design

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Allocation Method

NA

Intervention Model

SINGLE_GROUP

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Experimental

Volunteers are evaluated for appropriateness for inclusion in the study on an intent-to-treat basis. Qualifying candidates all receive the implanted neuroprosthesis and participate in post-operative training and follow-up procedures

Group Type EXPERIMENTAL

IRS-8 (8 channel implanted receiver stimulator)

Intervention Type DEVICE

Surgical implantation of an 8 channel pulse generator to stimulate paralyzed muscles of the lower extremities

Interventions

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IRS-8 (8 channel implanted receiver stimulator)

Surgical implantation of an 8 channel pulse generator to stimulate paralyzed muscles of the lower extremities

Intervention Type DEVICE

Other Intervention Names

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Implanted pulse generator for ambulation Implanted FES system for lower extremities Implated FES system for ambulation FES system for walking Implanted neuroprosthesis for gait correction Gait correction in partial paralysis

Eligibility Criteria

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Inclusion Criteria

* problems walking because of paralysis for more than 6 months
* weak hip flexors and extensors or excessive tone
* weak ankle dorsiflexors (muscles bringing the foot up)
* weak plantar flexors (ankle muscles for push-off)
* foot drop that is causing "dragging" or "catching" toes during walking
* swinging the leg sideways or hiking the hip to clear affected leg during stepping
* endurance to walk at least 10 ft with minimal assistance
* hip extension range to neutral
* hip flexion range greater or equal to 90 degrees
* ankle range to neutral
* sufficient upper extremity function to use a walking aid
* muscles respond to electrical stimulation

Exclusion Criteria

* cardiac arrythmias
* demand pacemaker
* pregnancy
* Parkinson's disease
* traumatic brain injury
* autoimmune deficiency
* uncontrolled diabetes
* significant edema of the affected limb
* active pressure ulcers or open wounds
* sepsis or an active infection
* severe osteoporosis
* uncontrolled seizures
* moderate depression
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Louis Stokes VA Medical Center

FED

Sponsor Role lead

Responsible Party

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Rudi Kobetic

Biomedical Engineer

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Rudi Kobetic, MSBE

Role: PRINCIPAL_INVESTIGATOR

Louis Stokes Cleveland Dept. of Veterans Affairs Medical Center

Locations

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Louis Stokes Cleveland Dept. of Veterans Affairs Medical Center

Cleveland, Ohio, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Lisa M Lombardo, MPT

Role: CONTACT

216-791-3800 ext. 4909

Facility Contacts

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Lisa M Lombardo, MPT

Role: primary

216-791-3800 ext. 4909

References

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Bailey SN, Hardin EC, Kobetic R, Boggs LM, Pinault G, Triolo RJ. Neurotherapeutic and neuroprosthetic effects of implanted functional electrical stimulation for ambulation after incomplete spinal cord injury. J Rehabil Res Dev. 2010;47(1):7-16. doi: 10.1682/jrrd.2009.03.0034.

Reference Type BACKGROUND
PMID: 20437323 (View on PubMed)

Hardin E, Kobetic R, Murray L, Corado-Ahmed M, Pinault G, Sakai J, Bailey SN, Ho C, Triolo RJ. Walking after incomplete spinal cord injury using an implanted FES system: a case report. J Rehabil Res Dev. 2007;44(3):333-46. doi: 10.1682/jrrd.2007.03.0333.

Reference Type BACKGROUND
PMID: 18247230 (View on PubMed)

Triolo RJ, Bailey SN, Foglyano KM, Kobetic R, Lombardo LM, Miller ME, Pinault G. Long-Term Performance and User Satisfaction With Implanted Neuroprostheses for Upright Mobility After Paraplegia: 2- to 14-Year Follow-Up. Arch Phys Med Rehabil. 2018 Feb;99(2):289-298. doi: 10.1016/j.apmr.2017.08.470. Epub 2017 Sep 9.

Reference Type DERIVED
PMID: 28899825 (View on PubMed)

Related Links

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http://fescenter.org

Cleveland FES center website

Other Identifiers

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1I01RX000528-01A2

Identifier Type: NIH

Identifier Source: secondary_id

View Link

12004-H02

Identifier Type: -

Identifier Source: org_study_id

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