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

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

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07224256
Enrollment
6
Registered
2025-11-04
Start date
2025-10-03
Completion date
2031-10-31
Last updated
2025-11-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Amyotrophic Lateral Sclerosis, Cervical Spinal Cord Injury, Quadriplegia, Quadriplegia/Tetraplegia, Stroke, Tetraplegia/Tetraparesis, Tetraplegic; Paralysis

Keywords

stroke, spinal cord injury, SCI, ALS, brain computer interface, BCI, PLS, voice, speech, dysarthria, neuralink

Brief summary

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.

Interventions

The N1 Implant is a type of implantable brain-computer interface

DEVICER1 Robot

The R1 Robot is a robotic electrode thread inserter that implants the N1 Implant.

Sponsors

Neuralink Corp
Lead SponsorINDUSTRY

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
22 Years to 75 Years
Healthy volunteers
No

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

Design outcomes

Primary

MeasureTime frameDescription
Device-Related Adverse Events (AE)12 months post-implantThe proportion of subjects with device-related adverse events (AEs) at the 12-month follow-up visit.
Procedure-Related Adverse Events (AE)12 months post-implantThe proportion of subjects with procedure-related adverse events (AEs) at the 12-month follow-up visit.

Secondary

MeasureTime frameDescription
Long-term Device-Related Adverse Events (AE)Up to 48 months post-implantThe proportion of subjects with device-related adverse events (AEs) up to the 48-month long-term follow-up visit.
Long-term Procedure-Related Adverse Events (AE)Up to 48 months post-implantThe proportion of subjects with procedure-related adverse events (AEs) up to the 48-month follow-up visit.
Preliminary efficacy of the R1 RobotDuring surgical implantation procedurePreliminary efficacy of the R1 Robot will be evaluated by measuring the following percent of electrodes inserted (reported as electrodes inserted / total electrodes).
Preliminary efficacy of the N1 ImplantUp to 48 months post-implantPreliminary efficacy of the N1 Implant will be evaluated by measuring the following BCI performance for speech, quantified by measuring the monthly maximum correct word per minute (CWPM).

Countries

United States

Contacts

Primary ContactNeuralink Clinical Team
voice-study@neuralink.com+1 (650) 250-0520

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026