- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT07495917
Tetris-intervensjon etter subliminal reaktivering for påtrengende minner
En Tetris-intervensjon etter subliminal reaktivering for å redusere påtrengende minner hos traumeutsatte individer: en randomisert kontrollert studie
Posttraumatisk stresslidelse (PTSD) kjennetegnes ved tilbakevendende, påtrengende minner om traumatiske hendelser som forårsaker betydelig ubehag og funksjonell svekkelse. Selv om traumefokuserte behandlinger er effektive, krever de vanligvis bevisst gjenopplevelse av traumatiske erfaringer, noe som kan være ubehagelig og kan føre til behandlingsunngåelse eller frafall.
I tidligere eksperimentelle studier utført med friske deltakere, viste vi at ubevisst reaktivering av traumarelaterte signaler, etterfulgt etter en kort forsinkelse som tilsvarer minne-rekonsolideringsvinduet – av en visuell-romlig interferensoppgave (Tetris-spilling), reduserte hyppigheten og den emosjonelle intensiteten av påtrengende minner. Disse funnene tyder på at minnerepresentasjoner kan være modifiserbare under rekonsolidering uten å kreve bevisst tilbakekalling.
Basert på dette arbeidet, har denne randomiserte kontrollerte studien (RCT) som mål å evaluere den kliniske effektiviteten og tolerabiliteten til denne rekonsolideringsbaserte intervensjonen hos traumeeksponerte personer som opplever fem eller flere påtrengende minner per uke.
Studieoversikt
Status
Detaljert beskrivelse
Studietype
Registrering (Antatt)
Fase
- Ikke aktuelt
Kontakter og plasseringer
Studiekontakt
- Navn: Zhu Zijian
- Telefonnummer: +86 13572494696
- E-post: zhuzijian0203@snnu.edu.cn
Studiesteder
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Shaanxi
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Xi'an, Shaanxi, Kina, 710062
- Rekruttering
- School of Psychology, Shaanxi Normal University
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
- Voksen
Tar imot friske frivillige
Beskrivelse
Inklusjonskriterier:
- Oppfylle DSM-5 PTSD kriterium A (f.eks., eksponering for faktisk eller truet død). Ha opplevd ett eller flere traumatiske hendelser.
- Opplevd fem eller flere påtrengende minner i basisuken.
- Ha internettilgang og tilgang til en personlig datamaskin.
- Være villig til å gi samtykke og være i stand til å fullføre studieprosedyrer og bli kontaktet av studieteamet.
Eksklusjonskriterier:
- Ha færre enn fem påtrengende minner i basisuken.
- En nåværende diagnose av schizofreni, tvangslidelse (OCD), en alvorlig personlighetsforstyrrelse som vurderes å forstyrre behandlingsetterlevelse, eller akutte selvmordstanker/atferd.
- Ha alvorlig substansavhengighet.
Studieplan
Hvordan er studiet utformet?
Designdetaljer
- Primært formål: Behandling
- Tildeling: Randomisert
- Intervensjonsmodell: Parallell tildeling
- Masking: Dobbelt
Våpen og intervensjoner
Deltakergruppe / Arm |
Intervensjon / Behandling |
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Eksperimentell: 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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Sham-komparator: 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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En datastyrt visuell-romlig oppgave (Tetris) med mentale rotasjonsinstruksjoner.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Number of trauma-related intrusive memories
Tidsramme: 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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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
|---|---|---|
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Number of trauma-related intrusive memories
Tidsramme: 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)
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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)
Tidsramme: 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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Andre resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Antall traumerelaterte påtrengende minner
Tidsramme: 2 måneder etter den siste intervensjonen (alle armer)
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Antall traumerelaterte påtrengende minner vurdert via et enkelt spørsmål.
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2 måneder etter den siste intervensjonen (alle armer)
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Changes to health
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbeidspartnere og etterforskere
Sponsor
Studierekorddatoer
Studer hoveddatoer
Studiestart (Faktiske)
Primær fullføring (Antatt)
Studiet fullført (Antatt)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- XAJWKY-2025062
Plan for individuelle deltakerdata (IPD)
Planlegger du å dele individuelle deltakerdata (IPD)?
IPD-deling Støtteinformasjonstype
- STUDY_PROTOCOL
- SEVJE
- ANALYTIC_CODE
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