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Efficacy and Circuit Mechanisms of Noninvasive Brain-Computer Interface Therapy for Upper-Extremity Motor Function in Patients With Ischemic Stroke (BRACING)

6. november 2026 oppdatert av: Xuanwu Hospital, Beijing

This prospective, single-center, single-arm exploratory clinicaltrial will enroll participants with upper-extremity dysfunction after chronicischemic stroke. A total of 38 participants are planned. All enrolled participants will receive noninvasive brain-computer interface (BCI)-controlled exoskeleton training for 4 weeks, once daily, 5 days per week. Upper-extremity motor function will be assessed using the Fugl-Meyer Assessment for the Upper Extremity (FMA-UE), the Action Research Arm Test (ARAT), and other measures. The study aims to: (1) preliminarily evaluate the efficacy of noninvasive BCI-controlled exoskeleton training in promoting upper-extremity motor recovery after chronic ischemic stroke; and (2)use multimodal neuroimaging and electrophysiological techniques to clarify the regulatory role of the reward-motor circuit in BCI-induced motor learning and functional recovery, and to explore key neural biomarkers and predictive models associated with treatment response.

Studieoversikt

Status

Har ikke rekruttert ennå

Forhold

Intervensjon / Behandling

Studietype

Intervensjonell

Registrering (Antatt)

38

Fase

  • Ikke aktuelt

Kontakter og plasseringer

Denne delen inneholder kontaktinformasjon for de som utfører studien, og informasjon om hvor denne studien blir utført.

Studiekontakt

Studiesteder

  • Kina
    • Beijing Municipality
      • Beijing, Beijing Municipality, Kina, 100037
        • Xuanwu Hospital Capital Medical University
        • Ta kontakt med:

Deltakelseskriterier

Forskere ser etter personer som passer til en bestemt beskrivelse, kalt kvalifikasjonskriterier. Noen eksempler på disse kriteriene er en persons generelle helsetilstand eller tidligere behandlinger.

Kvalifikasjonskriterier

Alder som er kvalifisert for studier

18 år til 75 år (Voksen, Eldre voksen)

Tar imot friske frivillige

Nei

Kjønn som er kvalifisert for studier

Alle

Beskrivelse

Inclusion Criteria:

  • First-ever unilateral supratentorial ischemic stroke.
  • Stroke onset at least 1 year previously, with stable neurological function duringthe preceding 3 months(increase in total NIHSS score≤2 points).
  • Age ≥18 and≤75 years.
  • Any sex.
  • Unilatera FMA-UE score of 10-45.
  • Able to understand simple motor instructions and complete a motor-imagery task; no clinically significant cognitive impairment, defined as MoCA>20 or MMSE>24
  • Sitting balance grade I-II,with the ability to maintain a seated position formore than 15 minutes.
  • Sufficient comprehension and communication ability, willingness to participate,and signed informed consent.

Exclusion Criteria:

  • Previous stroke, ischemic or hemorrhagic.
  • Bilateral,cerebellar, or brainstem lesions.
  • Severe upper-extremity spasticity(Modifed Ashworth Scale score≥3).
  • Unhealed fracture, osteoporosis, joint dislocation, or another condition affecting joint movement.
  • Severe depression(Beck Depression Inventory score≥17).
  • Marked hemispatial neglect or severe visuospatial impaiment.
  • Any MRl contraindication.
  • Current participation in another clinical trial.
  • Other important comorbidities,such as traumatic brain injury, ankylosing spondylitis, malignant tumor, neurodegenerative disease, epilepsy, multiplesclerosis, severe infection, unstable angina, or severe arrhythmia.
  • Pregnancy or breast feeding, or inability to use appropriate contraception during the trial.

Studieplan

Denne delen gir detaljer om studieplanen, inkludert hvordan studien er utformet og hva studien måler.

Hvordan er studiet utformet?

Designdetaljer

  • Primært formål: Behandling
  • Tildeling: N/A
  • Intervensjonsmodell: Enkeltgruppeoppdrag
  • Masking: Ingen (Open Label)

Våpen og intervensjoner

Deltakergruppe / Arm
Intervensjon / Behandling
Eksperimentell: BCI-induced Group

Patients with upper-extremity dysfunction after ischemic stroke.
Enhet: BCI system together with the active-passive exoskeleton training system

All eligible patients with upper-extremity dysfunction after chronic ischemic stroke will receive the study treatment once daily, 5 days per week, for 4 weeks.

The intervention uses the BCI system together with the active passive exoskeleton training system. The clinical management platform will be used for participant enrollment, assessment, treatment planning, and data archiving.

Hva måler studien?

Primære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
The difference between the FMA-UE score at the end of treatment and the baseline FMA-UE score
Tidsramme: Day 90 after training.

The FMA-UE total score ranges from 0 to 66, with higher scores indicating better upper-extremity motor function.
Day 90 after training.

Sekundære resultatmål

Resultatmål
Tiltaksbeskrivelse
Tidsramme
The difference between the Action Research Arm Test (ARAT) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Action Research Arm Test (ARAT) total score ranges from 0 to 57, with higher scores indicating better upper-extremity functional ability.
Day 90 after training.
The difference between the Motor Status Scale (MSS) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Motor Status Scale (MSS) total score ranges from 0 to 82, with higher scores indicating better upper-extremity motor function.
Day 90 after training.
The difference between the Stroke-Specific Quality of Life Scale (SS-QOL) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Stroke-Specific Quality of Life Scale (SS-QOL) total score ranges from 49 to 245, with higher scores indicating better stroke-specific quality of life.
Day 90 after training.
The difference between Stroke Rehabilitation Motivation Scale, 7-item version (SRMS-7) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Stroke Rehabilitation Motivation Scale, 7-item version (SRMS-7), total score ranges from 7 to 35, with higher scores indicating greater rehabilitation motivation.
Day 90 after training.
The difference between Apathy Evaluation Scale-Selfrated (AES-S) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Apathy Evaluation Scale-Self-rated (AES-S) total score ranges from 18 to 72, with higher scores indicating greater apathy and a worse outcome.
Day 90 after training.
The difference between Temporal Experience of Pleasure Scale (TEPS) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Temporal Experience of Pleasure Scale (TEPS) total score ranges from 18 to 108, with higher scores indicating greater pleasure and less anhedonia.
Day 90 after training.
The difference between Hamilton Anxiety Rating Scale (HAMA) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The Hamilton Anxiety Rating Scale (HAMA) total score ranges from 0 to 56, with higher scores indicating greater anxiety severity and a worse outcome.
Day 90 after training.
The difference between Hamilton Depression Rating Scale (HAMD) at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

The 17-item Hamilton Depression Rating Scale (HAMD-17) total score ranges from 0 to 52, with higher score.
Day 90 after training.
The difference between fMRI/sMRI measures of structural and functional brain changes at the end of treatment and the baseline.
Tidsramme: Day 90 after training.

EEG and fNIRS measures depend on the prespecified electrophysiological or hemodynamic metric.
Day 90 after training.
The difference between EEG and functional near-infrared spectroscopy (fNIRS) measures at the end of treatment and the baseline, including decoding accuracy, cortical activation, and brain-network topology
Tidsramme: Day 90 after training.

EEG and fNIRS measures depend on the prespecified electrophysiological or hemodynamic metric.
Day 90 after training.

Andre resultatmål

Resultatmål
Tidsramme
Incidence of Adverse events
Tidsramme: From baseline through the Day 90 follow-up visit.
From baseline through the Day 90 follow-up visit.

Samarbeidspartnere og etterforskere

Det er her du vil finne personer og organisasjoner som er involvert i denne studien.

Sponsor

Xuanwu Hospital, Beijing

Studierekorddatoer

Disse datoene sporer fremdriften for innsending av studieposter og sammendragsresultater til ClinicalTrials.gov. Studieposter og rapporterte resultater gjennomgås av National Library of Medicine (NLM) for å sikre at de oppfyller spesifikke kvalitetskontrollstandarder før de legges ut på det offentlige nettstedet.

Studer hoveddatoer

Studiestart (Antatt)

31. oktober 2026

Primær fullføring (Antatt)

31. oktober 2027

Studiet fullført (Antatt)

31. oktober 2028

Datoer for studieregistrering

Først innsendt

21. oktober 2026

Først innsendt som oppfylte QC-kriteriene

6. november 2026

Først lagt ut (Faktiske)

9. november 2026

Oppdateringer av studieposter

Sist oppdatering lagt ut (Faktiske)

9. november 2026

Siste oppdatering sendt inn som oppfylte QC-kriteriene

6. november 2026

Sist bekreftet

1. oktober 2026

Mer informasjon

Begreper knyttet til denne studien

Nøkkelord

Ytterligere relevante MeSH-vilkår

Andre studie-ID-numre

  • BCI-Stroke

Plan for individuelle deltakerdata (IPD)

Planlegger du å dele individuelle deltakerdata (IPD)?

NEI

IPD-planbeskrivelse

The Steering Committee will consider on a case-by-case basis requests for data sharing.

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Nei

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