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BCI With 40Hz Stimulation in Alzheimer's Disease

2 giugno 2026 aggiornato da: liu jun, Ruijin Hospital

EEG-Based Non-Invasive Brain-Computer Interface Combined With 40Hz Audio-Visual Stimulation for Cognitive Function in Patients With Alzheimer's Disease: A Randomized Double-Blind Controlled Study

This study aims to evaluate the efficacy and safety of non-invasive brain-computer interface (BCI) neuromodulation technique combined with 40Hz audio-visual stimulation on cognitive function in patients with Alzheimer's disease (AD). This is a single-center, randomized, double-blind, sham-controlled trial. A total of 90 participants with Aβ-PET positive AD diagnosed according to NIA-AA criteria will be enrolled and randomly assigned to three groups in a 1:1:1 ratio: (1) 40Hz stimulation group (fixed 40Hz audio-visual stimulation, 60 minutes daily for 6 months), (2) individualized stimulation group (closed-loop BCI with real-time EEG feedback to adjust stimulation parameters, 60 minutes daily for 6 months), and (3) sham stimulation group (inactive stimulation, same duration). The primary outcome is the change in MoCA-B score from baseline to 6 months. Secondary outcomes include changes in cognitive domain-specific assessments (AVLT, STT, DST), multimodal brain imaging, EEG parameters, peripheral blood AD biomarkers, safety, tolerability, and comparison of efficacy between open-loop and closed-loop stimulation.

Panoramica dello studio

Stato

Reclutamento

Condizioni

Intervento / Trattamento

Tipo di studio

Interventistico

Iscrizione (Stimato)

90

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

  • Nome: Binyin Li, MD，Ph.D
  • Numero di telefono: +8613681884221
  • Email: libinyin@126.com

Luoghi di studio

  • Cina
    • Shanghai Municipality
      • Shanghai, Shanghai Municipality, Cina, 2000025
        • Reclutamento
        • Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
        • Contatto:
        • Contatto:
        • Investigatore principale:
          • Jun Liu, MD, Ph.D
        • Sub-investigatore:
          • Binyin Li, MD, Ph.D

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

No

Descrizione

Inclusion Criteria:

  1. Diagnosis of Alzheimer's disease according to the NIA-AA 2018 diagnostic criteria.
  2. Age between 50 and 80 years, inclusive.
  3. Positive Aβ-PET scan result.
  4. Has a stable caregiver who can assist with daily stimulation intervention.
  5. Chronic medical conditions stable for at least 30 days.
  6. Adequate vision and hearing to perform testing (at minimum, ability to perceive light and communicate in daily conversation).
  7. Good mobility (able to walk independently or with assistive devices).
  8. Willing and able to provide voluntary signed informed consent.

Exclusion Criteria:

  1. History of epilepsy or seizure disorder.
  2. Inability to undergo MRI or presence of significant abnormalities on MRI screening.
  3. Geriatric Depression Scale (GDS) score > 6.
  4. Current suicidal ideation or suicide attempt within the past 6 months.
  5. Other major neurological disorders, including but not limited to: dementia with Lewy bodies, frontotemporal dementia, Huntington's disease, Creutzfeldt-Jakob disease, Down syndrome, or mixed dementia; other neurodegenerative diseases (Parkinson's disease, amyotrophic lateral sclerosis, multiple sclerosis, etc.); history of severe brain infection (meningitis/encephalitis) or multiple concussions; metabolic/systemic diseases causing cognitive impairment (syphilis, vitamin B12 or folate deficiency, etc.).
  6. Psychiatric disorders.
  7. Severe cardiac disease, chronic liver/kidney/respiratory disease, or uncontrolled diabetes mellitus or thyroid disease.
  8. History of drug or alcohol abuse within the past 12 months.
  9. Current exposure to anti-Aβ antibody immunotherapies.
  10. Current use of memantine within 30 days prior to intervention.
  11. Life expectancy < 24 months.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Triplicare

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: 40Hz Stimulation Group
Fixed 40Hz combined audio-visual stimulation, 60 minutes per day, once daily, for 6 consecutive months.
Dispositivo: 40Hz Stimulation Group
Participants receive fixed 40Hz combined audio-visual stimulation (visual + auditory) for 60 minutes per day, once daily, for 6 consecutive months. The stimulation parameters are fixed and do not adjust based on EEG feedback.
Sperimentale: Individualized Stimulation Group
40Hz combined audio-visual stimulation with EEG-based closed-loop feedback adjustment, 60 minutes per day, once daily, for 6 consecutive months.
Dispositivo: Individualized Stimulation Group
Participants receive 40Hz combined audio-visual stimulation (visual + auditory) for 60 minutes per day, once daily, for 6 consecutive months. In addition, the device performs EEG acquisition and closed-loop feedback adjustment based on preset algorithms. This allows individualized, closed-loop neuromodulation.
Comparatore fittizio: Sham Stimulation Group
Identical appearance and operation as the active device, but without effective individualized audio-visual stimulation. Only low-intensity, randomized flashes and audio cues are delivered.
Dispositivo: Sham Stimulation Group
Participants receive sham stimulation using a device identical in appearance and weight to the active device. The sham device does not output effective individualized audio-visual stimulation; only low-intensity, randomized flashes and audio cues are delivered.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Montreal Cognitive Assessment - Basic (MoCA-B) Score
Lasso di tempo: Baseline (pre-treatment) and 6 months (end of treatment)
The primary outcome is the change in MoCA-B score from baseline to 6 months. The MoCA-B is a validated cognitive screening tool for assessing global cognitive function. The score ranges from 0 to 30, with higher scores indicating better cognitive function. The change score (ΔMoCA-B) will be calculated as the 6-month score minus the baseline score. Assessments will be performed by trained neuropsychologists who are blinded to group assignment.
Baseline (pre-treatment) and 6 months (end of treatment)

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change in Auditory Verbal Learning Test (AVLT) Score
Lasso di tempo: Baseline, 3 months, and 6 months
The AVLT is a validated neuropsychological test assessing verbal learning and memory function. The test evaluates immediate recall, delayed recall, and recognition. Higher scores indicate better verbal memory performance. Assessments will be performed by trained neuropsychologists blinded to group assignment.
Baseline, 3 months, and 6 months
Change in Shape Trails Test (STT-A and STT-B) Score
Lasso di tempo: Baseline, 3 months, and 6 months
The STT is a validated neuropsychological test assessing executive function, attention, and psychomotor speed. STT-A primarily measures processing speed, while STT-B measures executive function and task-switching ability. Lower completion time indicates better performance. Assessments will be performed by trained neuropsychologists blinded to group assignment.
Baseline, 3 months, and 6 months
Change in Digit Span Test (DST) Score
Lasso di tempo: Baseline, 3 months, and 6 months
The DST is a validated neuropsychological test assessing working memory and attention. The test includes forward digit span (attention) and backward digit span (working memory). Higher scores indicate better working memory performance. Assessments will be performed by trained neuropsychologists blinded to group assignment.
Baseline, 3 months, and 6 months
Change in Structural MRI Parameters
Lasso di tempo: Baseline and 6 months
Changes in structural brain imaging parameters will be assessed using 3T MRI, including gray matter volume, cortical thickness, and hippocampal volume. These parameters will be used to evaluate the neuroprotective effects of the intervention. Imaging data will be analyzed by neuroradiologists blinded to group assignment.
Baseline and 6 months
Change in Functional MRI (fMRI) Parameters
Lasso di tempo: Baseline and 6 months
Changes in functional brain connectivity will be assessed using resting-state fMRI. Key parameters include functional connectivity within the default mode network (DMN) and gamma-band related networks. Imaging data will be analyzed by neuroradiologists blinded to group assignment.
Baseline and 6 months
Change in Peripheral Blood Alzheimer's Disease Biomarkers
Lasso di tempo: Baseline and 6 months
Changes in peripheral blood biomarkers associated with Alzheimer's disease pathology will be assessed. Biomarkers include: (1) amyloid beta 42 (Aβ42); (2) amyloid beta 40 (Aβ40) and the Aβ42/Aβ40 ratio; (3) phosphorylated tau (p-Tau181 or p-Tau217); (4) total tau (t-Tau); (5) neurofilament light chain (NfL).
Baseline and 6 months
Change in Aβ-PET Standardized Uptake Value Ratio (SUVR)
Lasso di tempo: Baseline and 6 months
Changes in brain amyloid beta burden will be assessed using Aβ-PET imaging. The primary measure is the standardized uptake value ratio (SUVR) in predefined regions of interest (including frontal, temporal, parietal, and occipital cortices, as well as the precuneus and cingulate). Higher SUVR indicates greater amyloid burden. Imaging data will be analyzed by nuclear medicine physicians blinded to group assignment.
Baseline and 6 months
Change in tau-PET Standardized Uptake Value Ratio (SUVR)
Lasso di tempo: Baseline and 6 months
Changes in brain tau pathology will be assessed using tau-PET imaging. The primary measure is the standardized uptake value ratio (SUVR) in predefined regions of interest (including medial temporal lobe, temporal cortex, parietal cortex, and other Braak stage regions). Higher SUVR indicates greater tau burden. Imaging data will be analyzed by nuclear medicine physicians blinded to group assignment.
Baseline and 6 months
Incidence of Serious Adverse Events (SAEs)
Lasso di tempo: Baseline through 6 months (entire study period)
The incidence, severity, and causality of all serious adverse events (SAEs) will be assessed throughout the study period. SAEs include: death, life-threatening events, persistent or significant disability or incapacity, hospitalization or prolonged hospitalization, fetal distress, fetal death, congenital anomalies or birth defects, and any other important medical events that may jeopardize the patient or require intervention to prevent one of the above outcomes.
Baseline through 6 months (entire study period)
Incidence of Adverse Events (AEs)
Lasso di tempo: Baseline through 6 months (entire study period)
The incidence, severity, and causality of all adverse events (AEs) will be assessed throughout the study period. AEs include but are not limited to: transient dizziness, visual fatigue, headache, nausea, attention fluctuation, drowsiness, eye dryness, tinnitus, irritability, anxiety, and any other unexpected events. Severity will be graded as mild, moderate, or severe. Relationship to the intervention will be classified as: definitely related, possibly related, potentially related, possibly unrelated, or definitely unrelated.
Baseline through 6 months (entire study period)

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Ruijin Hospital

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Effettivo)

1 maggio 2026

Completamento primario (Stimato)

31 ottobre 2027

Completamento dello studio (Stimato)

31 ottobre 2027

Date di iscrizione allo studio

Primo inviato

25 maggio 2026

Primo inviato che soddisfa i criteri di controllo qualità

25 maggio 2026

Primo Inserito (Effettivo)

1 giugno 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

3 giugno 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

2 giugno 2026

Ultimo verificato

1 giugno 2026

Maggiori informazioni

Termini relativi a questo studio

Parole chiave

Termini MeSH pertinenti aggiuntivi

Altri numeri di identificazione dello studio

  • 2026222

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

INDECISO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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