Safety and Efficacy of Epidural Spinal Cord Stimulation for Restoring Walking in Spinal Cord Injury
试验速览
- 阶段
- 不适用
- 状态
- 招募中
- 发起方
- 入组人数
- 12
- 试验地点
- 1
- 主要终点
- Adverse Events (AEs)
研究概览
简要总结
The goal of this clinical trial is to evaluate the safety and effectiveness of Epidural Electrical Stimulation (EES) combined with rehabilitation training for the reconstruction of walking in patients with chronic spinal cord injury (SCI) classified as AIS B-D. The main questions it aims to answer are:
Does the intervention of EES combined with rehabilitation significantly improve walking capacity? Is the combined intervention a safe approach for this patient population? Researchers will compare participants' functional assessments before EES implantation and at 2, 4, 7, 10, and 13 months post-implantation to evaluate the longitudinal effects. The primary assessments include the Walking Index for Spinal Cord Injury II (WISCI II), the Spinal Cord Independence Measure (SCIM III), and the adverse event. Secondary outcome measures encompass the International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI), the Functional Independence Measure (FIM), the Modified Ashworth Scale (MAS), the Penn Spasm Frequency Scale, the 10-Meter Walk Test (10mWT), the 6-Minute Walk Test (6minWT), and pain Visual Analogue Scale (VAS) scores. Neurophysiological and imaging evaluations, including electromyography (EMG), motor evoked potentials (MEPs), somatosensory evoked potentials (SEPs), and positron emission tomography-computed tomography (PET-CT), will be conducted preoperatively and at 6 months postoperatively to explore the mechanisms of neuroplasticity.
Participants will:
Undergo surgical implantation of an EES device. Receive personalized EES parameter programming combined with rehabilitation training (≥2 hours daily) post-operatively.
Complete a series of standardized functional and clinical outcome assessments at scheduled follow-up intervals.
Undergo scheduled neurophysiological and metabolic imaging studies. Report any adverse events throughout the study duration.
研究设计
- 研究类型
- Interventional
- 分配方式
- Na
- 干预模型
- Single Group
- 主要目的
- Treatment
- 盲法
- None
入排标准
- 年龄范围
- 16 Years 至 70 Years(Child, Adult, Older Adult)
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Age between 16 and 70 years.
- •Diagnosed with traumatic spinal cord injury for ≥ 6 months and ≤ 60 months.
- •American Spinal Injury Association Impairment Scale (AIS) grade B-D.
- •Spinal cord injury level above T10;
- •Walking Index for Spinal Cord Injury II (WISCI II) score ≤
- •Completion of a standard conventional rehabilitation program prior to enrollment.
- •Preserved upper limb function sufficient for self-propelling a manual wheelchair.
- •Sitting balance grade ≥
- •Ability to elicit clear electromyographic responses in lower limb muscles (e.g., rectus femoris, biceps femoris, gastrocnemius, tibialis anterior) upon transcutaneous electrical spinal cord stimulation at the T12-L1 vertebral levels.
- •Willingness to voluntarily participate, and commitment to compliance with all necessary postoperative rehabilitation, assessments, and follow-up visits.
排除标准
- •History of myocardial infarction or stroke within the past 6 months.
- •Diagnosis of psychiatric disorders with active suicidal ideation or risk.
- •Current pregnancy or planned pregnancy during the study period.
- •Bleeding tendency or coagulopathy (prothrombin time ≥18 seconds).
- •History of alcohol or substance abuse or dependence.
- •Intellectual disability, cognitive impairment, or personality disorders.
- •Other chronic medical conditions that may interfere with rehabilitation (e.g., unhealed severe fractures, hepatic or renal failure, severe anemia, etc.).
- •Implantation of cardiac pacemakers, cardioverters, or defibrillators.
- •Any other condition deemed inappropriate for participation by the investigators.
研究组 & 干预措施
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: Epidural spinal cord stimulation (Procedure)
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: Rehabilitation Therapy (Procedure)
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: positron emission tomography-computed tomography (PET-CT) (Radiation)
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: Somatosensory Evoked Potentials (SEPs) (Procedure)
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: Motor Evoked Potentials (MEPs) (Procedure)
Epidural spinal cord stimulation + Standard Rehabilitation
Participants receive the epidural spnial cord stimulation combined with individualized standard rehabilitation therapy for 12 months.
干预措施: Diffusion Tensor Imaging (DTI) (Radiation)
结局指标
主要结局
Adverse Events (AEs)
时间窗: Entire study period from implantation to the 13-month postoperative follow-up.
The incidence, severity, and relationship to the intervention of all AEs . All AEs will be defined, recorded, and graded according to the International Council for Harmonisation Good Clinical Practice guidelines. Serious adverse events will be reported specifically based on established criteria. This assessment will comprehensively cover all safety concerns related to the surgical procedure (epidural stimulator implantation), the electrical stimulation itself (across various parameter sets).
WISCI II (Walking Index for Spinal Cord Injury II)
时间窗: baseline, and 2, 4, 7, 13 monthes after surgery.
The WISCI II evaluates walking ability in spinal cord injury patients. It has 21 levels (0-20), with scores based on mobility aids and assistance needed. A score of 0 means no walking; 20 indicates independent walking without aids.
Spinal Cord Independence Measure III (SCIM III)
时间窗: baseline, and 2, 4, 7, 13 months after surgery
SCIM III is a disease-specific, validated assessment tool designed to evaluate the functional independence of individuals with spinal cord injury in performing essential activities of daily living, self-care, mobility, and respiration/management. It is tailored to reflect the unique challenges and priorities of the SCI population. The SCIM III consists of 19 items across three subscales: Self-care subscale (0-20 points): Includes feeding, grooming, bathing, and dressing. Respiration and sphincter management subscale (0-40 points): Covers respiration, bladder management, and bowel management. Mobility subscale (0-40 points): Assesses mobility in room and toilet, indoors and outdoors mobility, and stair management. The total score ranges from 0 to 100 points, with higher scores indicating greater functional independence.
次要结局
- International Standards for Neurological Classification of Spinal Cord Injury (ISNCSCI)(baseline, and 2, 4, 7, 13 monthes after surgery)
- Functional Independence Measure (FIM)(baseline, and 2, 4, 7, 13 months after surgery)
- The 10-Meter Walk Test (10m-WT)(baseline, and 2, 4, 7, 10, 13 monthes after surgery)
- The 6-Minute Walk Test (6min-WT)(baseline, and 2, 4, 7, 10, 13 monthes after surgery)
- Modified Ashworth Scale (MAS)(baseline, and 2, 4, 7, 13 monthes after surgery)
- Penn(baseline, and 2, 4, 7, 13 months after surgery)
- Visual Analog Scale (VAS) Pain Score(baseline, and 2, 4, 7, 13 monthes after surgery)
研究者
Junming Zhu
Chief Physician
Second Affiliated Hospital, School of Medicine, Zhejiang University
