Brain Machine Interface (BMI) in Subjects Living With Quadriplegia (BMI)
|The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details.|
|ClinicalTrials.gov Identifier: NCT02564419|
Recruitment Status : Active, not recruiting
First Posted : September 30, 2015
Last Update Posted : October 3, 2019
In this study, investigators will show proof-of-concept that brain signals can be used in real-time, closed-loop mode to trigger stimulation for hand function. Subjects will undergo surgery to implant a unilateral subdural strip electrode (Resume II, Model 3587A) over the motor cortex. These electrodes implanted in the brain will enable bioelectrical data recording (sensing) from the brain to the implanted Activa PC+S. The cortical sensing data will be
- either processed in the Activa PC+S; or
- off-loaded via the Nexus D communication device (Medtronic) to a computer.
|Condition or disease||Intervention/treatment||Phase|
|Spinal Cord Injury||Device: Medtronic Activa PC+S||Not Applicable|
Medical device manufacturer Medtronic has developed a fully-implantable, bi-directional neuroprosthetic that is built upon existing deep brain stimulation (DBS) technology and has the ability to perform electrocorticogram recording and deliver functional electrical stimulation. This device is an incremental improvement to an existing Premarket Approved (PMA) deep brain stimulation (DBS) device the Activa PC. The incremental improvement enables sensing and algorithmic capabilities while maintaining full functionality for therapy delivery without appreciable loss of device longevity .
Our investigator initiated feasibility trial seeks to test the Activa PC+S as a therapeutic system to restore movement to paralyzed muscles. Our mission is to develop and demonstrate in humans innovative direct neural interface technology that restores motor function, rehabilitates, and improves the quality of life of individuals with SCI. Investigators seek to enable testing that will lead to innovative neuroprosthetic therapies that improve recovery by retraining the nervous system, reduce secondary conditions, and create a better life for persons with SCI and other conditions that impair physical or cognitive function. This project will increase the understanding and tempo of research into the modes of functionality of a fully implantable system from the following perspectives: neurosurgery, biomedical engineering, rehabilitation, and therapeutics. A major strength of our approach is that it incrementally tests sub-components of the system through a systematic buildup of functionality towards control of upper extremity function.
|Study Type :||Interventional (Clinical Trial)|
|Actual Enrollment :||1 participants|
|Intervention Model:||Single Group Assignment|
|Masking:||None (Open Label)|
|Primary Purpose:||Health Services Research|
|Official Title:||Early Feasibility Study of a Medtronic Activa PC+S System for Persons Living With Spinal Cord Injury|
|Actual Study Start Date :||November 2015|
|Estimated Primary Completion Date :||December 1, 2020|
|Estimated Study Completion Date :||December 1, 2020|
Experimental: Medtronic Activa PC+S
Objective of this pilot phase early feasibility study is to assess the safety and feasibility of Medtronic Activa PC+S implant (device) by;
These are important first steps towards creating and designing a device that can enhance or assist in performing activities of daily living (ADL) in the life of these subjects. Attachment 15.3
Device: Medtronic Activa PC+S
Upon consent, the good candidates will undergo surgical screening that includes a full neurological workup and baseline functional assessment. Subjects that demonstrate feasibility for control will undergo surgery for unilateral implantation of the Activa PC+S as well as the implantation of unilateral subdural strip electrodes (Resume II, model 3587A) over the motor cortex. After 24 hour observation in the hospital, subjects will participate in 24 distinct sessions or visits of testing over a 3-6 month period. During these visits, the sensing, decoding of the implanted device (Activa PC+S) as well as the external stimulation components (Bioness H200) and parameters will be tested and benchmarked. Subjects will participate for 24 sessions and continue to participate in the study until the end of life of the device, at which point the subject may elect to undergo an explant at that time.
- Composite Outcome Measures Including: Neurological exams, questionnaires, functional hand testing, Adverse events [ Time Frame: 24 months ]Participants will undergo the following assessments: AIS motor and sensory score; SF-36 and Health Assessment Questionnaire (HAQ); muscle force test; range of motion; SCIM III; JTT hand function test; pinch grip strength.
To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT02564419
|United States, Florida|
|University of Miami School of Medicine/Miami Project to Cure Paralysis|
|Miami, Florida, United States, 33136|
|Principal Investigator:||Jonathan R Jagid, MD||University of Miami|