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Cognitive Remediation in Schizophrenia

4. december 2014 opdateret af: Gary Donohoe, University of Dublin, Trinity College

Cognitive Remediation in Schizophrenia: Effects on Brain Structure, Brain Function and Social Outcome.

The aim of this project is to undertake a randomized placebo controlled trial of cognitive remediation therapy (CRT) that focuses on working memory training in a sample of community based patients with chronic schizophrenia or other psychoses.

Cognitive deficits are a problem for many people with schizophrenia. This study will use computerized cognitive remediation training (which the participant can carry out at home) over a period of a few months.

Studieoversigt

Status

Ukendt

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

The aim of this project is to undertake a randomized placebo controlled trial of cognitive remediation therapy (CRT) that focuses on working memory training in a sample of community based patients with schizophrenia. Pre and Post neuropsychological assessment and Magnetic Resonance Imagery (MRI) will be used to determine the effects of CR training on

  1. Neuropsychological performance
  2. Brain Structure using voxel-based morphometry (VBM)
  3. Brain function using functional MRI (fMRI)
  4. Social and occupational functioning

The cognitive remediation intervention is a computerised programme whose training level is dynamically varied to suit participants individual ability level. Motivation to learn and generalization to real world function are a particular focus of the intervention and are supported with ongoing therapist interaction in addition to personal training.

Undersøgelsestype

Interventionel

Tilmelding (Forventet)

80

Fase

  • Ikke anvendelig

Kontakter og lokationer

Dette afsnit indeholder kontaktoplysninger for dem, der udfører undersøgelsen, og oplysninger om, hvor denne undersøgelse udføres.

Studiesteder

  • Irland
      • Dublin, Irland, 8
        • Rekruttering
        • Department of Psychiatry, Trinity Centre for Health Sciences, St James Hospital, James St.
        • Kontakt:
          • April H Hargreaves, PhD
          • Telefonnummer: 35318962624
          • E-mail: hargrea@tcd.ie
        • Kontakt:
        • Ledende efterforsker:
          • Gary J Donohue, DClin Psych PhD

Deltagelseskriterier

Forskere leder efter personer, der passer til en bestemt beskrivelse, kaldet berettigelseskriterier. Nogle eksempler på disse kriterier er en persons generelle helbredstilstand eller tidligere behandlinger.

Berettigelseskriterier

Aldre berettiget til at studere

18 år til 60 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • Schizophrenia
  • History of Psychosis
  • Subjective difficulties with memory or concentration
  • Aged 18-60 Years

Exclusion Criteria:

  • History of head injury resulting in loss of consciousness
  • Substance misuse in the last 3 months

Studieplan

Dette afsnit indeholder detaljer om studieplanen, herunder hvordan undersøgelsen er designet, og hvad undersøgelsen måler.

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Primært formål: Behandling
  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Tredobbelt

Våben og indgreb

Deltagergruppe / Arm
Intervention / Behandling
Eksperimentel: Cognitive Remediation Therapy
Participants will undertake approximately 30 minutes of computerized CRT training for 8 weeks, 5 days per week. They will meet a therapist once per week to discuss any difficulties, help motivation.
Andet: Cognitive Remediation Therapy
Computerised training undertaken for approximately 30 minutes per day, 5 days per week for 8 weeks
Andre navne:
  • CRT
Placebo komparator: Placebo Comparator
Participants will meet therapist once per week but will not undertake the Computerized Cognitive remediation training.
Andet: Placebo comparator
Participant meets the therapist once per week but does not carry out the CRT intervention. (Participants are subsequently offered the chance to carry out the CRT intervention post study if they so wish).
Andre navne:
  • Ingen indgriben

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change from baseline neuropsychological performance
Tidsramme: Directly following study treatment period
A battery of neuropsychological tests will be used at baseline and the same tests used directly after the intervention to measure changes in attention and memory. Tests include Wechsler Adult intelligence scale-III, Wechsler Memory Scale-III, Stroop test, Wisconsin card sorting task and measures of spatial working memory.
Directly following study treatment period

Sekundære resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Change from baseline neuropsychological performance at 3 to 6 months post intervention
Tidsramme: 3 to 6 months post study treatment period
A battery of neuropsychological tests will be used at baseline and the same tests used at 3 months post intervention to measure changes in attention and memory. Tests include Wechsler Adult intelligence scale-III, Wechsler Memory Scale-III, Stroop test, Wisconsin card sorting task and measures of spatial working memory.
3 to 6 months post study treatment period
Changes from baseline in brain activation during working memory testing
Tidsramme: Directly post study treatment period
Changes from baseline in brain activation during working memory testing will be measured using fMRI
Directly post study treatment period
Change from baseline in grey matter volume
Tidsramme: Directly following study treatment period
Changes in grey matter volume from baseline will be measured at 3 months post intervention using voxel based morphometry.
Directly following study treatment period

Andre resultatmål

Resultatmål
Foranstaltningsbeskrivelse
Tidsramme
Changes in social and occupational functioning
Tidsramme: Directly following study treatment period
Social and occupational function will be measured at baseline and the same tests used directly following intervention. Standardised measures will be used including ILS (Independent Living Scales) and the UCSD performance skills assessment brief version(UPSA-B)
Directly following study treatment period
Change from baseline in social and occupational functioning 3 to 6 months post intervention
Tidsramme: 3 to 6 months post study treatment period
Social and occupational function will be measured at baseline and the same tests used directly following intervention. Standardised measures will be used including ILS (Independent Living Scales) and the UCSD performance skills assessment brief version(UPSA-B)
3 to 6 months post study treatment period

Samarbejdspartnere og efterforskere

Det er her, du vil finde personer og organisationer, der er involveret i denne undersøgelse.

Sponsor

University of Dublin, Trinity College

Samarbejdspartnere

Health Research Board, Ireland

Efterforskere

  • Ledende efterforsker: Gary J Donoghoe, DClin Psych PhD, Trinity College Dublin, Ireland

Datoer for undersøgelser

Disse datoer sporer fremskridtene for indsendelser af undersøgelsesrekord og resumeresultater til ClinicalTrials.gov. Studieregistreringer og rapporterede resultater gennemgås af National Library of Medicine (NLM) for at sikre, at de opfylder specifikke kvalitetskontrolstandarder, før de offentliggøres på den offentlige hjemmeside.

Studer store datoer

Studiestart

1. maj 2013

Primær færdiggørelse (Forventet)

1. juni 2015

Studieafslutning (Forventet)

1. oktober 2015

Datoer for studieregistrering

Først indsendt

2. juli 2013

Først indsendt, der opfyldte QC-kriterier

15. juli 2013

Først opslået (Skøn)

19. juli 2013

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

5. december 2014

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

4. december 2014

Sidst verificeret

1. december 2014

Mere information

Begreber relateret til denne undersøgelse

Nøgleord

Yderligere relevante MeSH-vilkår

Andre undersøgelses-id-numre

  • CRT001

Disse oplysninger blev hentet direkte fra webstedet clinicaltrials.gov uden ændringer. Hvis du har nogen anmodninger om at ændre, fjerne eller opdatere dine undersøgelsesoplysninger, bedes du kontakte register@clinicaltrials.gov. Så snart en ændring er implementeret på clinicaltrials.gov, vil denne også blive opdateret automatisk på vores hjemmeside .

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