Clinical trial Recruiting at 1 site Interventional Ages 22 to 75

Robotic implantation of a precise brain‑computer interface to restore communication

Official title: VOICE: An Early Feasibility Study of a Precise Robotically Implanted Brain-Computer Interface for Communication Restoration

Run by Neuralink Corp · NCT07224256 · Data updated 2026-11-12

This project tests whether a robotically implanted Neuralink N1 brain implant can help adults with severe, irreversible speech loss from ALS, spinal cord injury, or stroke communicate again.

Quick facts

Study typeInterventional
Ages22 Years to 75 Years
SexAll
Enrollment6 (estimated)
SponsorNeuralink Corp
Industry-sponsored
Locations1 site (Dallas, Texas)
StatusRecruiting
StartedOctober 3, 2025
Main results expectedOctober 2028
Study endsOctober 2031
Registry record updatedNovember 10, 2026
Trial IDNCT07224256 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adults with ALS, PLS, cervical spinal cord injury, stroke, or similar central speech‑pathway conditions who have severe speech impairment, impaired upper limb function, English proficiency, a stable caregiver, life expectancy of at least 12 months, and suitable MRI anatomy and surgical risk are ideal candidates.

Probably not a fit

People with high perioperative risk, morbid obesity (BMI > 40), uncontrolled seizures or diabetes, immunosuppression, psychiatric conditions, need for ongoing MRIs, or brain anatomy unsuitable for electrode placement are unlikely to benefit or be eligible.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

VOICE is an early feasibility effort to test the initial clinical safety and ability of the Neuralink N1 implant, placed by the R1 robotic inserter, to restore communication. The N1 is a skull‑mounted, wireless, rechargeable device connected to thin electrode threads that are inserted into brain speech areas by the R1 robot. Adults with central speech‑pathway neurological conditions who have severe speech production impairment and impaired upper limb function are eligible after screening, MRI review, and surgical risk assessment. The study includes surgical implantation at a single center followed by regular follow‑up to monitor safety and measure any communication gains.

Why it matters

Potential benefit: If successful, the device could restore a usable method of communication for people with severe, irreversible speech loss.

How similar studies have gone: Prior intracortical brain‑computer interface work has shown proof‑of‑concept for enabling limited communication in paralysis and ALS, but this precise robotically implanted N1/R1 approach is novel and early in human testing.

Who can join: the full rules

Show full inclusion / exclusion criteria
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 it's running

  • The University of Texas Southwestern Medical Center
    Dallas, Texas, United States
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.