Cette page a été traduite automatiquement et l'exactitude de la traduction n'est pas garantie. Veuillez vous référer au version anglaise pour un texte source.

Spinal Cord Stimulation Combined With Motor Imagery Brain-Computer Interface for Chronic Post-Stroke Upper Limb Motor Dysfunction

30 juin 2026 mis à jour par: Zhejiang Provincial People's Hospital

A Prospective, Single-Center, Non-Randomized, Parallel-Controlled Study to Evaluate the Efficacy and Safety of Spinal Cord Stimulation Combined With Non-Invasive Motor Imagery Brain-Computer Interface Rehabilitation Training for Upper Limb Motor Dysfunction in Patients With Chronic Stroke

This clinical study aims to evaluate the efficacy and safety of spinal cord stimulation combined with non-invasive motor imagery brain-computer interface rehabilitation training in patients with upper limb motor dysfunction after chronic stroke. The study includes an experimental group receiving spinal cord stimulation combined with motor imagery brain-computer interface rehabilitation training and a control group receiving motor imagery brain-computer interface rehabilitation training alone. The primary outcome is upper limb motor function assessed by the Fugl-Meyer Assessment for Upper Extremity. Secondary outcomes include muscle tone, upper limb functional activity, activities of daily living, adverse events, serious adverse events, and exploratory neurophysiological and neuroimaging indicators.

Aperçu de l'étude

Statut

Pas encore de recrutement

Les conditions

Intervention / Traitement

Description détaillée

Upper limb motor dysfunction is a common and disabling sequela of stroke. Many patients enter a chronic phase more than 6 months after stroke onset, during which spontaneous recovery and conventional rehabilitation-related improvement often reach a plateau. Motor imagery brain-computer interface rehabilitation can decode motor intention from electroencephalographic signals and provide closed-loop feedback through external devices, thereby promoting cortical reorganization. However, in patients with impaired corticospinal pathways and insufficient residual motor execution capacity, the efficacy of motor imagery brain-computer interface training alone may be limited.

Spinal cord stimulation may facilitate spinal motor circuits, reduce abnormal muscle tone, and improve the excitability of residual descending motor pathways. Combining spinal cord stimulation with motor imagery brain-computer interface training may provide a synergistic central-peripheral neuromodulation strategy. The brain-computer interface decodes motor intention from the central nervous system, while spinal cord stimulation facilitates peripheral motor pathway execution, potentially enhancing motor recovery and neuroplasticity.

Participants will be assigned, according to patient preference and investigator assessment, to either the experimental group or the control group. The experimental group will undergo spinal cord stimulation implantation followed by individualized stimulation programming and standardized motor imagery brain-computer interface rehabilitation training. The control group will receive the same frequency and duration of motor imagery brain-computer interface rehabilitation training without spinal cord stimulation implantation. Clinical outcomes will be assessed at baseline, after 4 weeks of intervention, 2 months after intervention, and 3 months after intervention. Safety events will be recorded throughout the study. Exploratory assessments will include electroencephalography and neuroimaging to investigate potential mechanisms of neuroplasticity.

Type d'étude

Interventionnel

Inscription (Estimé)

66

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

  • Chine
    • Zhejiang
      • Hangzhou, Zhejiang, Chine, 310014
        • Zhejiang Provincial People's Hospital
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

Inclusion Criteria:

  • Age 18 to 75 years.
  • First-ever unilateral supratentorial stroke, either ischemic or hemorrhagic, confirmed by computed tomography or magnetic resonance imaging, resulting in hemiparesis, with disease duration longer than 6 months.
  • At least one active movement in the wrist or fingers of the affected upper limb, with muscle strength of grade 1 or higher.
  • Fugl-Meyer Assessment for Upper Extremity score between 10 and 40, indicating moderate upper limb motor impairment.
  • Change in Fugl-Meyer Assessment score less than 10% within the previous month, indicating a functional plateau.
  • Clear consciousness and basically normal cognitive function, with Mini-Mental State Examination score of 24 or higher.
  • Stable clinical condition and ability to understand and cooperate with simple instructions and rehabilitation training.
  • Written informed consent voluntarily signed by the participant or legal guardian.

Exclusion Criteria:

  • Other neurological diseases that may cause motor dysfunction, such as Parkinson's disease, multiple sclerosis, or spinal cord injury.
  • Severe visual or auditory impairment that prevents cooperation with visual or auditory feedback instructions of the brain-computer interface system.
  • Contraindications to spinal cord stimulation surgery, such as severe coagulation dysfunction, infection at the puncture site, severe spinal deformity, or spinal canal stenosis.
  • History of epilepsy, intracranial metal implants, cardiac pacemaker, or other contraindications to magnetic resonance imaging.
  • Previous neuromodulation surgery for hemiparesis, such as spinal cord stimulation or deep brain stimulation.
  • Pregnancy or lactation.
  • Any other condition judged by the investigator to make the participant unsuitable for this study.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Non randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: Spinal Cord Stimulation Combined With Motor Imagery Brain-Computer Interface Training
Participants in this group will undergo spinal cord stimulation implantation followed by individualized stimulation programming. After stabilization of stimulation parameters, participants will receive standardized motor imagery brain-computer interface rehabilitation training for 4 weeks, 5 sessions per week.
Dispositif: Spinal Cord Stimulation
Spinal cord stimulation will be delivered through epidural electrodes implanted at cervical spinal cord levels, typically C3-C7 for upper limb dysfunction. Stimulation parameters will be individually optimized within clinically safe and device-permitted ranges, including frequency, pulse width, amplitude, electrode configuration, and stimulation mode.
Dispositif: Motor Imagery Brain-Computer Interface Rehabilitation Training
Motor imagery brain-computer interface training will use a 64-channel medical-grade electroencephalography cap to acquire scalp EEG signals. Participants will perform motor imagery tasks involving the affected upper limb, such as grasping, elbow extension, or wrist lifting. Sensorimotor rhythm features, especially mu rhythm and beta rhythm event-related desynchronization, will be extracted in real time. When significant event-related desynchronization is detected, the system will trigger external feedback, such as a soft robotic glove or functional electrical stimulation, to assist the affected limb in completing the target movement.
Comparateur actif: Motor Imagery Brain-Computer Interface Rehabilitation Training
Participants in this group will receive the same frequency and duration of standardized motor imagery brain-computer interface rehabilitation training as the experimental group, for 4 weeks, 5 sessions per week. Training equipment, motor imagery tasks, and feedback methods will be consistent with those used in the experimental group.
Dispositif: Motor Imagery Brain-Computer Interface Rehabilitation Training
Motor imagery brain-computer interface training will use a 64-channel medical-grade electroencephalography cap to acquire scalp EEG signals. Participants will perform motor imagery tasks involving the affected upper limb, such as grasping, elbow extension, or wrist lifting. Sensorimotor rhythm features, especially mu rhythm and beta rhythm event-related desynchronization, will be extracted in real time. When significant event-related desynchronization is detected, the system will trigger external feedback, such as a soft robotic glove or functional electrical stimulation, to assist the affected limb in completing the target movement.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Change in Fugl-Meyer Assessment for Upper Extremity Score
Délai: Baseline, Week 4, Week 8, and Week 12
The Fugl-Meyer Assessment for Upper Extremity will be used to evaluate motor function recovery of the affected upper limb.
Baseline, Week 4, Week 8, and Week 12

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
Change in Modified Ashworth Scale Score
Délai: Baseline, Week 4, Week 8, and Week 12
The Modified Ashworth Scale will be used to assess muscle tone and spasticity of the affected upper limb.
Baseline, Week 4, Week 8, and Week 12
Change in Action Research Arm Test Score
Délai: Baseline, Week 4, Week 8, and Week 12
The Action Research Arm Test will be used to assess functional activity of the affected upper limb, including grasp, grip, pinch, and gross movement.
Baseline, Week 4, Week 8, and Week 12
Change in Modified Barthel Index Score
Délai: Baseline, Week 4, Week 8, and Week 12
The Modified Barthel Index will be used to assess activities of daily living.
Baseline, Week 4, Week 8, and Week 12
Incidence of Adverse Events and Serious Adverse Events
Délai: From enrollment to Week 12
All adverse events and serious adverse events will be recorded and assessed throughout the study. Spinal cord stimulation-related adverse events may include intraoperative or postoperative bleeding, infection, cerebrospinal fluid leakage, electrode migration or fracture, implant rejection, postoperative pain, and neurological injury. Motor imagery brain-computer interface-related adverse events may include dizziness, visual fatigue, skin allergy related to electrode gel, training-related fatigue, and other discomfort.
From enrollment to Week 12

Autres mesures de résultats

Mesure des résultats
Description de la mesure
Délai
Change in Electroencephalographic Indicators
Délai: Baseline, Week 4, and Week 12
Resting-state and motor imagery task-state 64-channel electroencephalography will be collected to analyze event-related desynchronization/synchronization, phase-lag-index-based functional connectivity, and graph-theoretical topological properties.
Baseline, Week 4, and Week 12
Change in Functional Magnetic Resonance Imaging and Diffusion Tensor Imaging Indicators
Délai: Baseline and Week 12
Resting-state functional magnetic resonance imaging and diffusion tensor imaging will be performed to assess changes in functional connectivity of the default mode network and sensorimotor network, as well as fractional anisotropy and mean diffusivity of major white matter tracts, including the corticospinal tract.
Baseline and Week 12

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Parrainer

Zhejiang Provincial People's Hospital

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Estimé)

1 septembre 2026

Achèvement primaire (Estimé)

1 février 2028

Achèvement de l'étude (Estimé)

1 mai 2028

Dates d'inscription aux études

Première soumission

30 juin 2026

Première soumission répondant aux critères de contrôle qualité

30 juin 2026

Première publication (Réel)

7 juillet 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

7 juillet 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

30 juin 2026

Dernière vérification

1 juin 2026

Plus d'information

Termes liés à cette étude

Mots clés

Termes MeSH pertinents supplémentaires

Autres numéros d'identification d'étude

  • KY2026089

Plan pour les données individuelles des participants (IPD)

Prévoyez-vous de partager les données individuelles des participants (DPI) ?

NON

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

Ces informations ont été extraites directement du site Web clinicaltrials.gov sans aucune modification. Si vous avez des demandes de modification, de suppression ou de mise à jour des détails de votre étude, veuillez contacter register@clinicaltrials.gov. Dès qu'un changement est mis en œuvre sur clinicaltrials.gov, il sera également mis à jour automatiquement sur notre site Web .

S'abonner