BCI With 40Hz Stimulation in Alzheimer's Disease
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
Studienübersicht
Status
Status
Bedingungen
Bedingungen
Intervention / Behandlung
Intervention / Behandlung
Studientyp
Studientyp
Einschreibung (Geschätzt)
Einschreibung
Phase
Phase
- Unzutreffend
Kontakte und Standorte
Studienkontakt
Studienkontakt
- Name: Chao Gao
- Telefonnummer: +8618217590273
- E-Mail: anshangaochao@163.com
Studieren Sie die Kontaktsicherung
- Name: Binyin Li, MD,Ph.D
- Telefonnummer: +8613681884221
- E-Mail: libinyin@126.com
Studienorte
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Shanghai Municipality
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Shanghai, Shanghai Municipality, China, 2000025
- Rekrutierung
- Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine
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Kontakt:
- Chao Gao
- E-Mail: anshangaochao@163.com
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Kontakt:
- Chao Gao, MD, Ph.D
- Telefonnummer: +8618217590273
- E-Mail: anshangaochao@163.com
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Hauptermittler:
- Jun Liu, MD, Ph.D
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Unterermittler:
- Binyin Li, MD, Ph.D
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Teilnahmekriterien
Zulassungskriterien
Zulassungskriterien
Studienberechtigtes Alter
- Erwachsene
- Älterer Erwachsener
Akzeptiert gesunde Freiwillige
Beschreibung
Inclusion Criteria:
- Diagnosis of Alzheimer's disease according to the NIA-AA 2018 diagnostic criteria.
- Age between 50 and 80 years, inclusive.
- Positive Aβ-PET scan result.
- Has a stable caregiver who can assist with daily stimulation intervention.
- Chronic medical conditions stable for at least 30 days.
- Adequate vision and hearing to perform testing (at minimum, ability to perceive light and communicate in daily conversation).
- Good mobility (able to walk independently or with assistive devices).
- Willing and able to provide voluntary signed informed consent.
Exclusion Criteria:
- History of epilepsy or seizure disorder.
- Inability to undergo MRI or presence of significant abnormalities on MRI screening.
- Geriatric Depression Scale (GDS) score > 6.
- Current suicidal ideation or suicide attempt within the past 6 months.
- 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.).
- Psychiatric disorders.
- Severe cardiac disease, chronic liver/kidney/respiratory disease, or uncontrolled diabetes mellitus or thyroid disease.
- History of drug or alcohol abuse within the past 12 months.
- Current exposure to anti-Aβ antibody immunotherapies.
- Current use of memantine within 30 days prior to intervention.
- Life expectancy < 24 months.
Studienplan
Wie ist die Studie aufgebaut?
Designdetails
- Hauptzweck: Behandlung
- Zuteilung: Zufällig
- Interventionsmodell: Parallele Zuordnung
- Maskierung: Verdreifachen
Anzahl der Arme
Waffen und Interventionen
Teilnehmergruppe / ArmTeilnehmergruppe / Arm |
Intervention / BehandlungIntervention / Behandlung |
|---|---|
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Experimental: 40Hz Stimulation Group
Fixed 40Hz combined audio-visual stimulation, 60 minutes per day, once daily, for 6 consecutive months.
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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.
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Experimental: 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.
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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.
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Schein-Komparator: 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.
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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.
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Was misst die Studie?
Primäre Ergebnismessungen
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Change in Montreal Cognitive Assessment - Basic (MoCA-B) Score
Zeitfenster: Baseline (pre-treatment) and 6 months (end of treatment)
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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.
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Baseline (pre-treatment) and 6 months (end of treatment)
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Sekundäre Ergebnismessungen
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
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Change in Auditory Verbal Learning Test (AVLT) Score
Zeitfenster: Baseline, 3 months, and 6 months
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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.
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Baseline, 3 months, and 6 months
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Change in Shape Trails Test (STT-A and STT-B) Score
Zeitfenster: Baseline, 3 months, and 6 months
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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.
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Baseline, 3 months, and 6 months
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Change in Digit Span Test (DST) Score
Zeitfenster: Baseline, 3 months, and 6 months
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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.
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Baseline, 3 months, and 6 months
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Change in Structural MRI Parameters
Zeitfenster: Baseline and 6 months
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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.
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Baseline and 6 months
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Change in Functional MRI (fMRI) Parameters
Zeitfenster: Baseline and 6 months
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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.
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Baseline and 6 months
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Change in Peripheral Blood Alzheimer's Disease Biomarkers
Zeitfenster: Baseline and 6 months
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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).
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Baseline and 6 months
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Change in Aβ-PET Standardized Uptake Value Ratio (SUVR)
Zeitfenster: Baseline and 6 months
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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.
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Baseline and 6 months
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Change in tau-PET Standardized Uptake Value Ratio (SUVR)
Zeitfenster: Baseline and 6 months
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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.
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Baseline and 6 months
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Incidence of Serious Adverse Events (SAEs)
Zeitfenster: Baseline through 6 months (entire study period)
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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.
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Baseline through 6 months (entire study period)
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Incidence of Adverse Events (AEs)
Zeitfenster: Baseline through 6 months (entire study period)
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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.
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Baseline through 6 months (entire study period)
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Mitarbeiter und Ermittler
Sponsor
Sponsor
Studienaufzeichnungsdaten
Haupttermine studieren
Studienbeginn (Tatsächlich)
Studienbeginn
Primärer Abschluss (Geschätzt)
Primärer Abschluss
Studienabschluss (Geschätzt)
Studienabschluss
Studienanmeldedaten
Zuerst eingereicht
Zuerst eingereicht
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
Zuerst gepostet (Tatsächlich)
Zuerst gepostet
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
Letztes Update gepostet
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
Zuletzt verifiziert
Zuletzt verifiziert
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Schlüsselwörter
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
Andere Studien-ID-Nummern
- 2026222
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Studiert ein von der US-amerikanischen FDA reguliertes Arzneimittelprodukt
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