- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07560904
Non-invasive Stimulation of Deep Brain Structures to Modulate Working Memory (DEEPBRAIN)
A study investigating the effects of non-invasive electrical stimulation of deep brain structures on working memory, attention, and executive functions involved in everyday activities. Currently, there is no effective treatment for impairments in these functions. The study will evaluate the effects of non-invasive electrical stimulation in both healthy older adults and individuals with mild impairment of these functions.
The study combines magnetic resonance imaging (MRI) with non-invasive brain stimulation targeting deep brain structures. Its aim is to improve understanding of the neural mechanisms underlying these cognitive functions and their impairments, as well as to explore the mechanisms of non-invasive brain stimulation for potential future therapeutic applications.
Descripción general del estudio
Estado
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Monika Pupíková
- Número de teléfono: +420549498818
- Correo electrónico: monika.pupikova@ceitec.muni.cz
Ubicaciones de estudio
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Brno, Chequia, 612 00
- Reclutamiento
- CEITEC Masaryk University
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Contacto:
- Monika Pupíková
- Número de teléfono: +420549498818
- Correo electrónico: monika.pupikova@ceitec.muni.cz
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Contacto:
- Correo electrónico: pupikovam@gmail.com
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Sub-Investigador:
- Monika Pupíková
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- normal cognitive performance as assessed by a cognitive screening for healthy subjects
- possible or probable MCI-LB or with PD-MCI, collectively called MCI-LBD, described as: presence of PD , and level II criteria for MCI (i.e. based on comprehensive neuropsychological examination), or the level II criteria for MCI , and at least two of four core DLB features including parkinsonism, visual hallucinations, attention/cognitive function fluctuation, and REM sleep behavioral disorder, or at least 1 core clinical feature and 1 indicative biomarker (probable MCI-LB).
Exclusion Criteria:
- Psychiatric disorders including major depression, major vascular lesions, or other brain pathologies that might present with cognitive decline.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Ciencia básica
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación cruzada
- Enmascaramiento: Triple
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Experimental: 20 Hz striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with a low-frequency offset (20 Hz), creating an interference hotspot targeting the deep brain structure (deep-tES).
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Striatum will be targeted by using at least two pairs of high-frequency tES with a low-frequency (20 Hz) offset, creating an interference hotspot targeting the deep brain structure (deep-tES).
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Experimental: 60 Hz striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with a low-frequency offset (60 Hz), creating an interference hotspot targeting the deep brain structure (deep-tES).
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Striatum will be targeted by using at least two pairs of high-frequency tES with a low-frequency (60 Hz) offset, creating an interference hotspot targeting the deep brain structure (deep-tES).
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Comparador falso: Sham striatal stimulation
Striatum will be targeted by using two pairs of high-frequency tES with no low-frequency offset.
The stimulation will be applied only shortly and turned off after ramp-up and ramp-down period.
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A high-frequency tES without low-frequency offset.
It will consist of two oscillatory high-frequency currents without any frequency shifts, which induces similar skin sensations as deep-tES and will be applied just for a ramp-up/ramp-down phases at the beginning of the stimulation and afterwards will be switched off.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Periodo de tiempo |
|---|---|
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The neural underpinning of NIBS-induced changes quantified by task-fMRI activations
Periodo de tiempo: During intervention ( approximately 10 minutes)
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During intervention ( approximately 10 minutes)
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The neural underpinning of NIBS-induced changes quantified by network-based analytical approaches.
Periodo de tiempo: During intervention ( approximately 10 minutes)
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During intervention ( approximately 10 minutes)
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Working memory performance - Reaction times
Periodo de tiempo: During intervention (approx 10 minutes)
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Reaction times of an N-back task between the real and sham stimulation condition in a cross-over design.
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During intervention (approx 10 minutes)
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Working memory parformance - Accuracy
Periodo de tiempo: During intervention ( approximately 10 minutes)
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Accuracy (measured as D-prime) of an N-back task between the real and sham stimulation condition in a cross-over design.
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During intervention ( approximately 10 minutes)
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Colaboradores e Investigadores
Patrocinador
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Actual)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
- NW25-04-00142
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Información sobre medicamentos y dispositivos, documentos del estudio
Estudia un producto farmacéutico regulado por la FDA de EE. UU.
Estudia un producto de dispositivo regulado por la FDA de EE. UU.
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