Multi-functional Neuroprosthetic System for Restoration of Motor Function in Spinal Cord Injury
NCT ID: NCT02329652
Last Updated: 2025-12-19
Study Results
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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RECRUITING
NA
30 participants
INTERVENTIONAL
2014-12-01
2031-12-31
Brief Summary
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Funding Sources:
FDA OOPD NIH NINDS
Detailed Description
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In clinical feasibility studies with spinal cord injured subjects, our clinical research teams have demonstrated the control of bilateral hand function, bed mobility, postural control, restoration of an effective cough, and bladder control using chronically implanted neuroprostheses. Outcomes from each clinical study demonstrate that each system provides increased functional independence to the individual. Initially, only a single type of implanted system was implemented in any one individual, resulting in restoration of a single bodily function. Thus, it has been necessary for subjects to choose between available functions and select only one, despite the fact that each subject had multiple disabilities. In the past few years, we have progressed to implementing a few subjects with more than one system, such as providing both hand function and trunk stability. However, the fundamental limitation of the current approach has been technological; i.e. each implanted system is completely independent (both technically and programmatically), requiring separate technology to be developed for each function, and these systems are implemented by separate teams in separate surgical procedures. Thus, to this point, it has not been possible to address each individual's comprehensive needs and tailor an overall approach that maximizes their functional gains.
The proposed approach depends on the availability of a foundational platform technology that is capable of meeting our broad specifications. We have now achieved this milestone under separate funding, creating a revolutionary new implantable neuroprosthetic technology that is fully capable of providing the necessary technological base for our proposed research. This system, the Networked Neuroprosthetic System (NNPS), is a modular, scalable, and configurable network of fully implanted, networked modules capable of meeting or exceeding the needs of all of these neuroprosthetic applications. The NNPS provides a foundation which enables efficient technical refinements that optimize implementation of the system for each targeted application. The NNPS technology is currently operational and is undergoing fabrication and testing in preparation for final pre-clinical studies and human implantation.
Conditions
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Keywords
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Study Design
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NA
SINGLE_GROUP
TREATMENT
NONE
Study Groups
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Intervention - implant neuroprosthesis
Receives implanted networked neuroprosthetic system for hand, arm, and trunk function. Undergoes functional training and assessment.
Networked Neuroprosthetic System for Grasp and Trunk
Receive implanted networked neuroprosthesis
Interventions
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Networked Neuroprosthetic System for Grasp and Trunk
Receive implanted networked neuroprosthesis
Eligibility Criteria
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Inclusion Criteria
* Biceps/brachialis/brachioradialis strength of 2/5 or higher on Manual Muscle Test
* Peripheral nerve innervation to upper extremity and trunk muscles, including a grade 3/5 or higher stimulated strength (Manual Muscle Test) in at least two of the following muscles in one arm: adductor pollicis, abductor pollicis brevis, flexor pollicis longus, extensor pollicis longus, extensor digitorum communis, flexor digitorum superficialis, flexor digitorum profundus, pronator quadratus, extensor carpi ulnaris, extensor carpi radialis brevis, extensor radialis longus, flexor carpi ulnaris, flexor carpi radialis, first dorsal interosseous; and in at least two of the following muscles: left/right gluteus maximus, left/right erector spinae, left/right quadratus lumborum,
* Age \> 16 years
* Medically stable - cleared for surgery
* Able and willing to take part in study
Exclusion Criteria
* Other neurological conditions (multiple sclerosis, diabetes with peripheral nerve involvement)
* History of coagulopathy, HIV, severe cardiopulmonary disease, severe bradycardia, severe autonomic dysreflexia, or chronic obstructive pulmonary disease.
* Active untreated infection such as decubitus ulcer, urinary tract infection, pneumonia
* Presence of other active implantable medical devices with unknown or untested interaction with the NNP implant
* Active implantable medical device (AIMD) such as a pacemaker or defibrillator, with the exception of the implanted stimulator-telemeter (IST) or implanted receiver stimulator (IRS) systems developed by the Cleveland Functional Electrical Stimulation Center
* Unhealed fractures that prevent functional use of arm or trunk
* Less than six months post-injury (neuroprosthesis implantation delayed until criteria met)
* Extensive upper extremity denervation (fewer than two stimulatable hand muscles and two stimulatable trunk muscles)
* Involvement in other ongoing clinical studies that exclude concurrent until criteria met)
* Disorder or condition that require MRI monitoring
* Mechanical ventilator dependency
* Progressive SCI In subjects who are undergoing bilateral implantation, subjects should not have a history of autonomic dysreflexia, hypertension, diabetes or any condition which requires frequent blood pressure monitoring or frequent venipuncture.
* Adverse interaction between system components and typical electromagnetic (EM) sources in subject's home and work environments, including wheelchair or other active implantable devices.
17 Years
ALL
No
Sponsors
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National Institute of Neurological Disorders and Stroke (NINDS)
NIH
Case Western Reserve University
OTHER
Congressionally Directed Medical Research Programs
FED
FDA Orphan Products Division
UNKNOWN
Anne Bryden
OTHER
Responsible Party
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Anne Bryden
Principal Investigator
Locations
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MetroHealth Medical Center
Cleveland, Ohio, United States
Countries
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Facility Contacts
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Anne L Byrden, Ph.D.
Role: primary
References
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Ho CH, Triolo RJ, Elias AL, Kilgore KL, DiMarco AF, Bogie K, Vette AH, Audu ML, Kobetic R, Chang SR, Chan KM, Dukelow S, Bourbeau DJ, Brose SW, Gustafson KJ, Kiss ZH, Mushahwar VK. Functional electrical stimulation and spinal cord injury. Phys Med Rehabil Clin N Am. 2014 Aug;25(3):631-54, ix. doi: 10.1016/j.pmr.2014.05.001.
Peckham PH, Kilgore KL. Challenges and opportunities in restoring function after paralysis. IEEE Trans Biomed Eng. 2013 Mar;60(3):602-9. doi: 10.1109/TBME.2013.2245128. Epub 2013 Mar 7.
Makowski N, Campean A, Lambrecht J, Buckett J, Coburn J, Hart R, Miller M, Montague F, Crish T, Fu M, Kilgore K, Peckham PH, Smith B. Design and Testing of Stimulation and Myoelectric Recording Modules in an Implanted Distributed Neuroprosthetic System. IEEE Trans Biomed Circuits Syst. 2021 Apr;15(2):281-293. doi: 10.1109/TBCAS.2021.3066838. Epub 2021 May 25.
Kilgore KL, Hoyen HA, Bryden AM, Hart RL, Keith MW, Peckham PH. An implanted upper-extremity neuroprosthesis using myoelectric control. J Hand Surg Am. 2008 Apr;33(4):539-50. doi: 10.1016/j.jhsa.2008.01.007.
Related Links
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Cleveland Functional Electrical Stimulation Center
Other Identifiers
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OPD #5409
Identifier Type: OTHER_GRANT
Identifier Source: secondary_id
CDMRP-SC090230
Identifier Type: OTHER
Identifier Source: secondary_id
NNP-UE+T
Identifier Type: -
Identifier Source: org_study_id