ECoG Direct Brain Interface for Individuals With Upper Limb Paralysis

October 18, 2016 updated by: Jennifer Collinger, PhD, University of Pittsburgh

Acute Electrocorticography (ECoG) Direct Brain Interface for Individuals With Upper Limb Paralysis

The purpose of this research study is to demonstrate that individuals with upper limb paralysis due to spinal cord injury, brachial plexus injury, amyotrophic lateral sclerosis and brain stem stroke can successfully achieve direct brain control of assistive devices using an electrocorticography (ECoG)-based brain computer interface system.

Study Overview

Detailed Description

Brain-computer interface (BCI) technology aims to establish a direct link for transmitting information between the brain and external devices, offering a natural and rich control signal for prosthetic hands or functional electrical stimulators (FES) to re-animate paralyzed hands. This study focuses on an ECoG-based BCI system. ECoG measures brain activity using electrodes implanted on the surface of the brain. Each participant will undergo testing of the ECoG direct brain interface for up to 29 days. Participants will learn to control computer cursors, virtual reality environments, and assistive devices such as hand orthoses and functional electrical stimulators using neural activity recorded with the ECoG sensor.

Study Type

Interventional

Enrollment (Actual)

6

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

    • Pennsylvania
      • Pittsburgh, Pennsylvania, United States, 15213
        • University of Pittsburgh

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years to 70 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Limited or no ability to use both hands due to cervical spinal cord injury, brachial plexus injury, brainstem stroke, muscular dystrophy, or amyotrophic lateral sclerosis (ALS) or other motor neuron diseases
  • At least 1 year post-injury
  • Live within 1 hour of the University of Pittsburgh or willing to stay in Pittsburgh while the ECoG electrode is implanted (up to 29 days)
  • Additional inclusion criteria must also be reviewed

Exclusion Criteria:

  • Certain implanted devices
  • Presence of other serious disease or disorder that could affect ability to participate in this study
  • Additional exclusion criteria must also be reviewed

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Allocation: N/A
  • Interventional Model: Single Group Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Direct Brain Interface Users
All participants enrolled in the study will undergo "Implantation of ECoG sensors on the brain surface" to record neural activity. There is no control group. There are no other arms.
One ECoG sensor will be implanted over the motor cortex of study participants
Other Names:
  • neuroprosthetic
  • brain-computer interface

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Able to Successfully Control of a Variety of External Devices Using Neural Data Recorded With ECoG
Time Frame: Up to 29 days of device implantation
Participants will attempt to control devices such as computer cursors, virtual reality environments and assistive devices such as hand orthoses or surface functional electrical stimulators using their brain activity recorded through ECoG.
Up to 29 days of device implantation

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Number of Participants Able to Achieve Direct Brain Control of Assistive Devices Using an Electrocorticography (ECoG)-Based Brain-computer Interface System
Time Frame: Up to 29 days of device implantation
Participants will be asked to perform, attempt, or imagine performing motor tasks while their brain activity is recorded in order to observe the changes in neural activity during each task.
Up to 29 days of device implantation

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

May 1, 2011

Primary Completion (Actual)

April 1, 2015

Study Completion (Actual)

April 1, 2015

Study Registration Dates

First Submitted

July 11, 2011

First Submitted That Met QC Criteria

July 11, 2011

First Posted (Estimate)

July 13, 2011

Study Record Updates

Last Update Posted (Estimate)

December 12, 2016

Last Update Submitted That Met QC Criteria

October 18, 2016

Last Verified

October 1, 2016

More Information

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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