RecruitingNot ApplicableNCT06939660

BCI-Assisted SCS-EXS for Gait Optimization

Spatiotemporal Spinal Cord Stimulation Based on Implantable Brain-machine Interfaces and Exoskeletons for Spinal Cord Injury (BASEGO)

Sponsor

Xuanwu Hospital, Beijing

Enrollment

3 participants

Start Date

Apr 23, 2025

Study Type

INTERVENTIONAL

Conditions

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

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.

Eligibility

Min Age: 14 YearsMax Age: 65 Years

Plain Language Summary

Simplified for easier understanding

This Chinese study is testing the safety and feasibility of a novel three-part system for people with chronic spinal cord injury (SCI): a brain-computer interface (BCI) that reads movement intentions from the brain's motor cortex, spinal cord stimulation (SCS) electrodes implanted in the spine, and a wearable exoskeleton — all working together to help patients walk again. This is an early feasibility study designed to determine whether the integrated system is safe and can be reliably used for rehabilitation. People aged 14 to 65 with chronic SCI (at least 6 months post-injury) classified as ASIA A, B, or C who have stable health, intact cognitive function, and no improvement with prior rehabilitation are eligible — those with severe heart conditions, active infections, pacemakers, or other implanted electrical devices are not eligible. Participation involves brain and spinal electrode implant surgeries, followed by a 1-year daily rehabilitation training program using the combined BCI-stimulation-exoskeleton system. This summary was prepared with AI assistance to help patients understand the study in plain language.

This summary was AI-generated to explain the trial in plain language. It is not medical advice. Always discuss eligibility with your doctor before enrolling in a clinical trial.

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Interventions

DEVICEBCI-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.