NCT07224256 · Neuralink Corp
VOICE: An Early Feasibility Study of a Precise Robotically Implanted Brain-Computer Interface for Communication Restoration
What this study is about
The VOICE Study is an early feasibility study to evaluate the initial clinical safety and effectiveness of the N1 and R1 Systems device design concept in providing an ability to communicate. The Neuralink N1 Implant is intended to provide the ability to communicate to individuals with severe and irreversible speech production impairment.
View original scientific description
The VOICE Study is an early feasibility study to evaluate the initial clinical safety and efficacy of the N1 and R1 Systems device design concept in providing an ability to communicate. The Neuralink N1 Implant is intended to provide the ability to communicate to individuals with severe and irreversible speech production impairment. It is indicated for adults with neurological conditions of the central speech pathways who have impaired upper limb function. The N1 Implant is a skull-mounted, wireless, rechargeable implant connected to electrode threads that are implanted in the brain by the R1 Robot, a robotic electrode thread inserter.
Who can participate
This study lists these criteria on ClinicalTrials.gov. A study coordinator reviews eligibility during screening — this page does not determine whether you qualify.
Inclusion criteria
- Adults with diagnosis of ALS, PLS, stroke, or Spinal Cord Injury who have severe speech impairment and impaired upper limb function.
- Life expectancy ≥ 12 months.
- Ability to communicate in English
- Presence of a stable caregiver
Exclusion criteria
- Moderate to high risk for serious perioperative adverse events
- Morbid obesity (Body Mass Index \> 40)
- History of poorly controlled seizures or epilepsy
- History of poorly controlled diabetes
- Requires magnetic resonance imaging (MRI) for any ongoing medical conditions
- Acquired or hereditary immunosuppression
- Psychiatric or psychological disorder
- Brain MRI demonstrating hemorrhage, tumor, distorted or adverse anatomy.
- Any condition which, in the opinion of the Investigator, would compromise your ability to safely participate in the study or undergo the implantation procedure
Where
- Dallas, Texas
Frequently asked questions
What is a clinical trial?
A clinical trial is a research study that tests new medical treatments, drugs, devices, or procedures to determine their safety and effectiveness. Trials are carefully designed and monitored to protect participants while advancing medical knowledge.
Is it safe to participate?
Clinical trials follow strict safety guidelines and ethical standards. Trials must be reviewed and approved, and participants are closely monitored by medical professionals throughout the study. You can withdraw at any time if you choose.
Will I be compensated?
Many clinical trials offer compensation for your time, travel expenses, and inconvenience. The specific compensation varies by study and will be discussed during the screening process. All study-related medical care is typically provided at no cost to participants.
Will I receive a placebo instead of treatment?
When effective treatment exists, participants typically receive either the standard treatment plus the study intervention, or the standard treatment plus placebo. You would not be denied effective care. Placebos are primarily used when no proven treatment is available, or in addition to standard care. Your trial consent form will clearly explain what treatments you may receive.
Can I leave a trial if I change my mind?
Absolutely. Participation in clinical trials is completely voluntary. You have the right to withdraw from the study at any time, for any reason, without penalty or loss of benefits to which you are otherwise entitled.
How long does a clinical trial last?
Trial duration varies widely depending on the study design and purpose. Some trials last just a few weeks, while others may continue for months or years. The study coordinator will provide specific timeline information during your screening call.
Data: ClinicalTrials.gov · synced Nov 4, 2025 · Source of record for eligibility and locations