Mind over paralysis: Brain-Controlled implant aims to move arms again
NCT ID NCT05665998
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early study tests a device that reads brain signals and stimulates the spinal cord to help people with cervical spinal cord injury move their arms and hands. Three participants will have electrodes implanted in their brain and over their spinal cord. The goal is to see if the system is safe and can restore some upper limb function.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- ARC-BSI Cervical system (implantable brain and spinal cord stimulator)
- What this could lead to
- If it works, this could point toward a way for people with tetraplegia to regain some arm and hand function using their own brain signals.
- What could go wrong
- This is a very early safety trial with only 3 participants, so results may not apply widely. The implant surgery carries risks like infection or device failure, and the system may not produce meaningful movement.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 3 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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May 2023
- Expected to finish
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Dec 2026
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 75 years
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
* Must provide Informed Consent as documented by signature (Appendix Informed Consent Form), * Must be at least 18 years old and no older than 75 years old at the time of enrolment, * Must be suffering from non-progressive traumatic cervical spinal cord injury, * Must be graded A, B, C, or D in the American Spinal Injury Association (ASIA) Impairment Scale (AIS) classification, * Must have completed primary standard of care rehabilitation, * Must be severely impaired in his upper limb function as determined by the investigator, * Must have sustained the injury at least 6 months before signing the consent form, * Must be able to understand and interact with the study team in French or English, * Must agree to comply in good faith with all conditions of the study and to attend all scheduled appointments, * Must use safe contraception for women of childbearing capacity, * Must not be pregnant nor breast feeding, * Must not have history of severe autonomic dysreflexia, * Must not have brain damage, * Must not have history of epilepsy, * Must not have spinal stenosis, * Must not have gastrointestinal ulcers in the last five years, * Must not have any psychological disorder, * Must not have the intention to become pregnant during the course of the study, * Must not be known or suspected of drug or alcohol abuse, * Must not have participated in another clinical study using drugs or medical devices within the 30 days preceding and during the present study, * Must not have previously been injected with stem cells in the spinal cord, * Must not be the investigator himself, his/her family members, employees or other dependent persons, * Must not have any unstable or significant medical condition that is likely to interfere with study procedures or likely to confound study endpoint evaluations as determined by the Investigator, * Must not have any hematological disorders with increased risk for surgical intervention, * Must not require ventilator support, * Must not suffer from spinal cord injury from other etiology than traumatic (ischemic, tumoral, autoimmune, etc), * Must not be subject to spasms that limit the ability of the subject to participate in the study training as determined by the investigator, * Must not display spinal stenosis or post traumatic damage at location of implantation, * Must not require the use of an intrathecal baclofen pump, * Must not be implanted with a device such as pacemakers or defibrillators, * Must not have any indication that would require an MRI, * Must not suffer from congenital nor acquired upper limb abnormalities (affection of joints or bones).
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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CHUV
RECRUITINGLausanne, Canton of Vaud, 1011, Switzerland
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a tailored surgical approach improve outcomes for spinal stenosis?