BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia (BrainGate2)
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ClinicalTrials.gov Identifier: NCT00912041 |
Recruitment Status :
Recruiting
First Posted : June 3, 2009
Last Update Posted : January 10, 2023
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Condition or disease | Intervention/treatment | Phase |
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Tetraplegia Spinal Cord Injuries Amyotrophic Lateral Sclerosis Brain Stem Infarctions Locked in Syndrome Muscular Dystrophy | Device: Placement of the BrainGate2 sensor(s) into the motor-related cortex | Not Applicable |
Study Type : | Interventional (Clinical Trial) |
Estimated Enrollment : | 15 participants |
Allocation: | N/A |
Intervention Model: | Single Group Assignment |
Masking: | None (Open Label) |
Primary Purpose: | Other |
Official Title: | BrainGate2: Feasibility Study of an Intracortical Neural Interface System for Persons With Tetraplegia |
Study Start Date : | May 2009 |
Estimated Primary Completion Date : | September 2038 |
Estimated Study Completion Date : | December 2038 |

Arm | Intervention/treatment |
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BrainGate
BrainGate Neural Interface System
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Device: Placement of the BrainGate2 sensor(s) into the motor-related cortex
Up to four 4x4 mm BrainGate2 sensor(s) are placed into the motor-related cortex (including speech-related areas of cortex), connected to one or two percutaneous pedestals. Neural recordings are made at least weekly for a year or more.
Other Names:
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- The primary endpoint of this Study is to determine the safety of the BrainGate2 Neural Interface System. [ Time Frame: One year post-implant evaluation period ]
- To investigate the feasibility of BrainGate2 and to establish the parameters for a larger clinical study, such as appropriate neural decoding algorithms, sample size, indices of measurement, success criteria, and endpoints. [ Time Frame: Course of the study ]

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Ages Eligible for Study: | 18 Years to 80 Years (Adult, Older Adult) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Clinical diagnosis of spinal cord injury, brainstem stroke, muscular dystrophy, amyotrophic lateral sclerosis or other motor neuron disorders
- Complete or incomplete tetraplegia (quadriplegia)
- Must live within a three-hour drive of the Study site
- (There are additional inclusion criteria)
Exclusion Criteria:
- Visual impairment such that extended viewing of a computer monitor would be difficult even with ordinary corrective lenses
- Chronic oral or intravenous steroids or immunosuppressive therapy
- Other serious disease or disorder that could seriously affect ability to participate in the study
- (There are additional exclusion criteria)

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): NCT00912041
Contact: Leigh R Hochberg, M.D., Ph.D. | 617-724-9247 | clinicaltrials@braingate.org |
United States, California | |
University of California, Davis | Recruiting |
Sacramento, California, United States, 95817 | |
Contact: David M Brandman, MD, PhD 916-703-5010 braingate@ucdavis.edu | |
Principal Investigator: David M Brandman, MD, PhD | |
Stanford University School of Medicine | Recruiting |
Stanford, California, United States, 94305 | |
Contact: Jaimie Henderson, M.D. 650-723-5574 henderj@stanford.edu | |
Principal Investigator: Jaimie Henderson, M.D. | |
United States, Georgia | |
Emory University School of Medicine | Recruiting |
Atlanta, Georgia, United States, 30322 | |
Contact: Yvan Bamps, Ph.D. 404-778-7673 braingate@emory.edu | |
Principal Investigator: Nicholas Au Yong, M.D., Ph.D. | |
United States, Massachusetts | |
Massachusetts General Hospital | Recruiting |
Boston, Massachusetts, United States, 02114 | |
Contact: Leigh R Hochberg, MD, PhD 617-742-9247 lhochberg@mgh.harvard.edu | |
Principal Investigator: Leigh R Hochberg, M.D., Ph.D. | |
Sub-Investigator: Sydney S Cash, M.D., Ph.D. | |
Sub-Investigator: Ziv Williams, M.D., Ph.D. | |
United States, Rhode Island | |
Providence VA Medical Center | Recruiting |
Providence, Rhode Island, United States, 02908 | |
Contact: Stephen Mernoff, M.D. stephen.mernoff@va.gov | |
Principal Investigator: Stephen Mernoff, M.D. | |
Sub-Investigator: Leigh R Hochberg, M.D., Ph.D. |
Principal Investigator: | Leigh R Hochberg, M.D., Ph.D. | Massachusetts General Hospital |
Publications of Results:
Other Publications:
Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):
Responsible Party: | Leigh R. Hochberg, MD, PhD., Sponsor-Investigator, Massachusetts General Hospital |
ClinicalTrials.gov Identifier: | NCT00912041 |
Other Study ID Numbers: |
MGH-BG2-TP-001 R01DC009899 ( U.S. NIH Grant/Contract ) UH2NS095548 ( U.S. NIH Grant/Contract ) A2295-R ( Other Grant/Funding Number: U.S. Department of Veterans Affairs ) U01NS123101 ( U.S. NIH Grant/Contract ) R01DC014034 ( U.S. NIH Grant/Contract ) U01DC017844 ( U.S. NIH Grant/Contract ) |
First Posted: | June 3, 2009 Key Record Dates |
Last Update Posted: | January 10, 2023 |
Last Verified: | December 2022 |
Brain computer interface Assistive device Environmental control |
Communication device quadriplegia tetraplegia |
Muscular Dystrophies Spinal Cord Injuries Motor Neuron Disease Amyotrophic Lateral Sclerosis Quadriplegia Locked-In Syndrome Brain Stem Infarctions Pathologic Processes Infarction Ischemia Necrosis Spinal Cord Diseases Central Nervous System Diseases Nervous System Diseases Trauma, Nervous System |
Wounds and Injuries Neurodegenerative Diseases Neuromuscular Diseases TDP-43 Proteinopathies Proteostasis Deficiencies Metabolic Diseases Muscular Disorders, Atrophic Muscular Diseases Musculoskeletal Diseases Genetic Diseases, Inborn Paralysis Neurologic Manifestations Brain Infarction Brain Ischemia Cerebrovascular Disorders |