Implantable Wireless Brain-Computer Interface Systems in Patients With Tetraplegia (LEAP)

August 20, 2026 updated by: BCIFlex Medical Technology Co., Ltd.

A Prospective, Multi-center Clinical Trial to Evaluate the Safety and Efficacy of Implantable Wireless Brain-Computer Interface Systems in Patients With Tetraplegia

Objectives of Study: This trial aims to evaluate the safety and efficacy of an implantable wireless brain-computer interface system in patients with tetraplegia resulting from spinal cord injury.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
34

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • 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 Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Locations

  • China
      • Beijing, China
        • Recruiting
        • Beijing Tiantan Hospital, Capital Medical University
        • Contact:

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

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Adult
  • Older Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age ≥18 years and ≤65 years, male or female;
  • Tetraplegia due to C2-C5 cervical spinal cord injury, diagnosed per 2019 revised ISNCSCI of ASIA, injury grade A to B;
  • Intact cognitive function, MoCA-BLIND score ≥19;
  • Elbow flexor muscle strength ≤ Grade 3 by ISNCSCI;
  • Neurological assessment confirms normal motor cortex function without significant organic or functional brain lesions;
  • Tetraplegia diagnosed for ≥12 months, stable clinical status ≥6 months after standard treatment;
  • Good compliance, voluntary participation; informed consent signed by subject or legal representative.

Exclusion Criteria:

  • Syringomyelia, severe neuralgia or spasticity limiting training participation;
  • Require tracheotomy, mechanical ventilation, nasogastric feeding to sustain vital functions;
  • High surgical risk: active systemic infection, coagulation disorders, antithrombotic therapy users;
  • Subjects implanted with CNS electrical stimulation medical devices;
  • Unstable medical conditions, severe mental/cognitive disorders confounding endpoint assessment;
  • Severe, unstable, uncontrolled complex regional pain syndrome;
  • Autoimmune-induced spinal cord dysfunction/injury;
  • History of stroke, multiple sclerosis, drug-resistant epilepsy, Alzheimer's Disease;
  • Peripheral neuropathy;
  • Pregnant/breastfeeding females, females planning pregnancy during trial;
  • Require MRI examinations during device implantation period;
  • Participated in other clinical trials within 1 month prior to enrollment;
  • Investigator judges participation unsafe, or subject unlikely to complete protocol follow-up.

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

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

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Implanted Brain-Computer Interface
Device: Implantable wireless brain-computer interface systems
Device: IWBCIS
Implantable wireless brain-computer interface systems

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Success rate of brain-controlled tasks
Time Frame: 2, 3, 6 months post-implant
2, 3, 6 months post-implant

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Digital Instrumental Activities of Daily Living (dIADL)
Time Frame: 2, 3, 6 months post-implant
2, 3, 6 months post-implant
Brain Control Fluency Index
Time Frame: 2, 3, 6 months post-implant
The Brain Control Fluency Index is defined as the mean Information Transfer Rate measured by the Web-Grid Task performed by the patients with implantable wireless Brain-Computer Interface System.
2, 3, 6 months post-implant
Patient Health Questionnaire-9 (PHQ-9)
Time Frame: Baseline, 2, 3, 6 months post-implant
Baseline, 2, 3, 6 months post-implant
Average Monthly Device Usage Duration
Time Frame: 6 months post-implant
6 months post-implant
WHO Quality of Life BREF
Time Frame: Baseline, 2, 3, 6 months post-implant
Baseline, 2, 3, 6 months post-implant
Hospital Anxiety and Depression Scale-Anxiety Subscale (HADS-A)
Time Frame: Baseline, 2, 3, 6 months post-implant
Baseline, 2, 3, 6 months post-implant
Psychosocial Impact of Assistive Devices Scale (PIADS)
Time Frame: 2, 3, 6 months post-implant
2, 3, 6 months post-implant
Subject Satisfaction with the Device
Time Frame: 2, 3, 6 months post-implant
Trial subject report questionnaire to measure the trial subject's satisfaction of using trial device.
2, 3, 6 months post-implant
Investigator Satisfaction with Device Operation
Time Frame: 2, 3, 6 months post-implant
Investigator report questionnaire to measure the investigator's satisfaction with device operation.
2, 3, 6 months post-implant
Device Reliability
Time Frame: up to 6 months post-implant
Device Reliability is measure by the Electrode Impedance of the Device
up to 6 months post-implant

Collaborators and Investigators

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

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
BCIFlex Medical Technology Co., Ltd.

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 (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
July 15, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
June 1, 2027

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
July 1, 2027

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
August 13, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 20, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 25, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
August 25, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 20, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
August 1, 2026

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • ZR202601

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

UNDECIDED

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

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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