BCI-Assisted SCS-EXS for Gait Optimization

Summary

The goal of this clinical trial is to evaluate the safety and technical feasibility of a novel brain-machine interface (BCI)-assisted spinal cord stimulation (SCS) and exoskeleton (EXS) system in patients with spinal cord injury (SCI). The primary aim is to determine whether the BCI-SCS-EXS system can safely and effectively improve lower limb motor function and quality of life in individuals with chronic SCI.

Participant Population:

Adults aged 14-65 years (sex/gender not limited). Patients with chronic SCI (≥6 months post-injury) classified as ASIA A, B, or C.

Individuals with stable health status, MMSE ≥22, and secondary education or above.

Primary Questions:

1. Is the BCI-SCS-EXS system safe and technically feasible for SCI rehabilitation?
2. Does the system improve lower limb motor function and quality of life in SCI patients?

Interventions:

Participants will undergo the following procedures:

Phase I (Implantation):

BCI implantation: ECoG electrodes placed over the motor cortex to decode lower limb movement intent.

SCS electrode implantation: 5-6-5 paddle electrodes at T11-L2 for targeted spinal cord stimulation.

Phase II (System Calibration):

BCI-SCS synchronization: Calibration of decoded motor intent to trigger SCS parameters.

SCS-EXO synchronization: Integration of SCS pulses with exoskeleton-assisted gait training.

Phase III (Rehabilitation):

Daily BCI-SCS-EXS training sessions (60 minutes, 5 times/week for 1 year). Adaptive adjustments to stimulation parameters and exoskeleton support based on performance.

Remote monitoring of device performance and emergency intervention for technical issues.

Outcome Measures:

Primary: Safety (adverse events, device performance, synchronization metrics). Secondary: Efficacy (motor function, neurophysiological function, quality of life).

Ethics and Safety:

Informed consent will be obtained from all participants. Adverse events will be monitored and reported according to CTCAE 5.0 guidelines.

Participant confidentiality will be strictly maintained. This study will provide foundational evidence for the safety and feasibility of the BCI-SCS-EXO system, paving the way for future randomized controlled trials in SCI rehabilitation.

Conditions

• Spinal Cord Injuries (SCI)
• Spinal Cord Injury, Chronic
• Spinal Cord Injury
• Spinal Cord Injury Cervical
• Spinal Cord Injury Thoracic
• Spinal Cord Injury (Quadraplegia)
• Motor Impairment
• Motor Deficits
• Gait Training
• Gait Impairment

Interventions

DEVICE

BCI-SCS-EXS

Participants will undergo a BCI-SCS-EXS intervention designed to enhance neurorehabilitation for spinal cord injury (SCI). The intervention includes: 1. BCI Implantation: High-density ECoG electrodes placed over the motor cortex to decode lower limb movement intent. 2. SCS Electrode Implantation: 5-6-5 paddle electrodes implanted at T11-L2 to deliver targeted spinal cord stimulation. 3. System Calibration: BCI-SCS synchronization to trigger stimulation parameters based on decoded motor intent. SCS-EXS integration to provide synchronized gait assistance. 4. Rehabilitation Training: Daily training sessions (60 minutes, 5 times/week for 1 year) combining BCI-SCS-EXS. 5. Follow-Up: Safety and efficacy assessments at 1, 2, 3, 6, and 12 months post-intervention. This intervention aims to promote neuroplasticity and functional recovery through brain-controlled spinal activation and synchronized exoskeleton assistance.

Sponsors & Collaborators

• Beijing Xinzhida Neural Technology Co., Ltd

  collaborator UNKNOWN

• Beijing Pins Medical Co., Ltd

  collaborator INDUSTRY

• Hangzhou RoboCT Technology Development Co.,Ltd

  collaborator UNKNOWN

• Xuanwu Hospital, Beijing

  lead OTHER

Study Design

Allocation

NA

Purpose

TREATMENT

Masking

NONE

Model

SINGLE_GROUP

Eligibility

Min Age

14 Years

Max Age

65 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2025-04-23

Primary Completion

2026-05-01

Completion

2027-04-30

Countries

• China

Study Locations