- ICH GCP
- Registro de ensayos clínicos de EE. UU.
- Ensayo clínico NCT07495917
Intervención con Tetris tras la Reactivación Subliminal para Recuerdos Intrusivos
Una Intervención con Tetris Tras la Reactivación Subliminal para Reducir los Recuerdos Intrusivos en Individuos Expuestos a Trauma: un Ensayo Controlado Aleatorizado
El Trastorno de Estrés Postraumático (TEPT) se caracteriza por recuerdos recurrentes e intrusivos de eventos traumáticos que causan un malestar significativo y un deterioro funcional. Aunque los tratamientos centrados en el trauma son eficaces, suelen requerir la evocación deliberada de experiencias traumáticas, lo que puede ser angustiante y puede contribuir a la evitación del tratamiento o al abandono.
En estudios experimentales anteriores realizados con participantes sanos, demostramos que la reactivación inconsciente de señales relacionadas con el trauma, seguida, tras un breve retraso correspondiente a la ventana de reconsolidación de la memoria, de una tarea de interferencia visoespacial (juego de Tetris), redujo la frecuencia y la intensidad emocional de los recuerdos intrusivos. Estos hallazgos sugieren que las representaciones de la memoria pueden ser modificables durante la reconsolidación sin requerir un recuerdo consciente.
Basándonos en este trabajo, el presente ensayo controlado aleatorizado (ECA) tiene como objetivo evaluar la eficacia clínica y la tolerabilidad de esta intervención basada en la reconsolidación en individuos expuestos a trauma que experimentan cinco o más recuerdos intrusivos por semana.
Descripción general del estudio
Estado
Descripción detallada
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: Zhu Zijian
- Número de teléfono: +86 13572494696
- Correo electrónico: zhuzijian0203@snnu.edu.cn
Ubicaciones de estudio
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Shaanxi
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Xi'an, Shaanxi, Porcelana, 710062
- Reclutamiento
- School of Psychology, Shaanxi Normal University
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Descripción
Criterios de inclusión:
- Cumplir con el Criterio A de TEPT del DSM-5 (por ejemplo, exposición a muerte real o amenazada). Haber experimentado uno o más eventos traumáticos.
- Haber experimentado cinco o más recuerdos intrusivos durante la semana basal.
- Tener acceso a internet y tener acceso a una computadora personal.
- Estar dispuesto a dar su consentimiento y ser capaz de completar los procedimientos del estudio y ser contactado por el equipo de estudio.
Criterios de exclusión:
- Tener menos de cinco recuerdos intrusivos durante la semana basal.
- Un diagnóstico actual de esquizofrenia, trastorno obsesivo-compulsivo (TOC), un trastorno de personalidad grave que se considere que interfiere con la adherencia al tratamiento, o comportamiento suicida agudo.
- Tener una dependencia grave de sustancias.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
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Experimental: Unconscious Reactivation
Participants in this experimental arm will undergo subliminal (unconscious) reactivation of trauma-related memories.
Trauma-related cues are presented below the threshold of conscious awareness.
Following reactivation, participants complete a 10-minute music-listening task, after which they perform a computerized visuospatial interference task (Tetris) with mental rotation instructions.
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In each intervention session, participants are exposed subliminally to trauma-related cues.
Participants then complete a 10-minute music-listening task during the post-reactivation interval, followed by a computerized visuospatial interference task (Tetris) with mental rotation instructions.
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Comparador falso: No Reactivation Control
Participants in this control arm will not undergo trauma memory reactivation.
They will proceed directly to a computerized visuospatial task (Tetris) with mental rotation instructions.
This condition serves as a comparator for evaluating the effects of the experimental intervention while controlling for the nonspecific effects associated with engagement in the visuospatial task.
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Una tarea visuoespacial informatizada (Tetris) con instrucciones de rotación mental.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Number of trauma-related intrusive memories
Periodo de tiempo: Day 30 - 36(all arms) controlling for baseline week
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Number of trauma-related intrusive memories assessed via a daily diary.
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Day 30 - 36(all arms) controlling for baseline week
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Number of trauma-related intrusive memories
Periodo de tiempo: Day 12 - 18 (all arms) controlling for baseline week
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Number of trauma-related intrusive memories assessed via a daily diary.
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Day 12 - 18 (all arms) controlling for baseline week
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Clinician-Administered PTSD Scale for DSM-5 (CAPS-5)
Periodo de tiempo: Baseline (day 0) and day 37 (all arms)
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Change in PTSD symptom severity as measured by the Clinician-Administered PTSD Scale for DSM-5 (CAPS-5).
The CAPS-5 is a structured clinical interview assessing DSM-5 PTSD symptoms.
Each of the 20 PTSD symptom items is rated on a severity scale from 0 to 4. The total symptom severity score is calculated by summing the severity ratings for the 20 PTSD symptom items, yielding a total score range from 0 to 80. Higher scores indicate greater PTSD symptom severity.
PTSD diagnostic status is determined according to DSM-5 symptom cluster criteria and is not based solely on the total severity score.
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Baseline (day 0) and day 37 (all arms)
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Intrusive memory ratings
Periodo de tiempo: Baseline(day 0), Day 18, day 36, 2 months after the last intervention(all arms)
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This 7-item questionnaire assesses a number of intrusive memory characteristics.
These characteristics include: frequency (7-point categorical response from 'never' to 'many times a day'); distress (0=not at all to 10=extremely); disruption to concentration (0=not at all to 10=extremely); interference with what you were doing (how much (0=not at all to 10=extremely) and for how long (6-point categorical response from '<1min' to '>60mins')); impact on work functioning (0=not at all to 10=extremely); impact on functioning in other areas of life (0=not at all to 10=extremely).
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Baseline(day 0), Day 18, day 36, 2 months after the last intervention(all arms)
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Post-Intervention Questionnaire
Periodo de tiempo: Day1, 2, 10, 11, 19, 20, 28, 29 (all arms)
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A 2-item questionnaire assessed participants' immediate subjective experience after each intervention session: distress experienced during the procedure (0=not at all to 10=very); acceptability of the intervention task (0=not at all to 10=very).
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Day1, 2, 10, 11, 19, 20, 28, 29 (all arms)
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PTSD Checklist for DSM-5 (PCL-5)
Periodo de tiempo: Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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This 20-item measure assesses symptoms of PTSD over the last month.
Each of the 20 items is rated on a 5-point Likert scale ranging from 0 (Not at all) to 4 (Extremely).
The total score ranges from 0 to 80.
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Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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Impact of Event Scale-Revised (IES-R)
Periodo de tiempo: Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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This 22-item self-report measure subjective distress caused by traumatic events during the past seven days.
It assesses three domains of post-traumatic stress: intrusion, avoidance, and hyperarousal.
Each of the 22 items is rated on a 5-point scale according to symptom severity: 0 (Not at all) to 4 (Extremely).
The total score is calculated by summing the scores of all 22 items, yielding a total score range from 0 to 88.
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Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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Beck Depression Inventory-II (BDI-II)
Periodo de tiempo: Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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The Beck Depression Inventory-II (BDI-II) is a 21-item self-report instrument used to assess the existence and severity of depressive symptoms, covering emotional (e.g., sadness, hopelessness), cognitive (e.g., self-reproach, worthlessness), somatic (e.g., fatigue, appetite loss), and behavioral (e.g., loss of interest, social withdrawal) dimensions.
Each of the 21 items consists of four statements describing increasing levels of severity, rated on a 4-point scale ranging from 0 (not present) to 3 (severe).
The total score is calculated by summing the scores of all 21 items, with a total score range from 0 to 63.
Higher scores indicate more severe depressive symptoms.
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Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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State-Trait Anxiety Inventory-State version (STAI-S)
Periodo de tiempo: Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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The State Anxiety subscale of the State-Trait Anxiety Inventory (STAI-Form Y-I, S-AI) comprises items 1 to 20 of the inventory.
Half of the items describe negative emotions and the other half describe positive emotions.
It is designed to evaluate immediate or recent situational experiences of fear, tension, worry, and nervousness, making it particularly useful for assessing state anxiety under stressful conditions.
Each of the 20 items is rated on a 4-point scale: 1 (not at all), 2 (somewhat), 3 (moderately so), and 4 (very much so).
The total score is calculated by summing the 20 items, yielding a total score range from 20 to 80. Higher scores reflect a greater severity of the subject's current state anxiety symptoms.
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Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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Work and Social Adjustment Scale (WSAS)
Periodo de tiempo: Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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The WSAS is a 5-item self-report scale designed to measure the degree of functional impairment in day-to-day activities (work, home management, social leisure, private leisure, and close relationships).
Each of the 5 items is rated on a 9-point scale ranging from 0 (Not at all impaired) to 8 (Very severely impaired).
The total score is calculated by summing the scores of all 5 items, yielding a total score range from 0 to 40.
Lower scores indicate better functioning, while higher scores indicate greater functional impairment.
Clinical thresholds are: below 10 (subclinical), 10 to 20 (significant functional impairment), and above 20 (moderately severe or worse psychopathology).
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Baseline(day 0), day19, day37, 2 months after the last intervention(all arms)
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Otras medidas de resultado
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
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Número de recuerdos intrusivos relacionados con el trauma
Periodo de tiempo: 2 meses después de la última intervención (todos los brazos)
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Número de recuerdos intrusivos relacionados con trauma evaluados mediante un único ítem.
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2 meses después de la última intervención (todos los brazos)
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Changes to health
Periodo de tiempo: Day37 and 2 months after the last intervention(all arms)
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This 4-item questionnaire assesses the number of any new traumatic events, new treatments received and the occurrence of adverse events since the last assessment.
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Day37 and 2 months after the last intervention(all arms)
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Feedback questionnaire
Periodo de tiempo: Day29 (all arms)
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A 5-item questionnaire (0=not at all to 10=very) assessed participants' subjective experience of the intervention: ease of use; perceived helpfulness; willingness to use the intervention if intrusive memories recur in the future; willingness to recommend the intervention to others with similar intrusive memories; whether they perceived the task as related to their condition during the experiment.
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Day29 (all arms)
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Subliminal Perception Check
Periodo de tiempo: Day1, 2, 10, 11, 19, 20, 28, 29 (the Unconscious Reactivation group only)
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Administered only to the unconscious cue group; following each intervention, participants are asked whether they perceived any image via a single-item binary choice (Yes/No).
If the response is "Yes," an open-ended verbal description is required.
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Day1, 2, 10, 11, 19, 20, 28, 29 (the Unconscious Reactivation group only)
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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
- XAJWKY-2025062
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Tipo de información de apoyo para compartir IPD
- PROTOCOLO DE ESTUDIO
- SAVIA
- CÓDIGO_ANALÍTICO
Información sobre medicamentos y dispositivos, documentos del estudio
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