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Study Comparing Patients Taking Olanzapine and Patients Taking Aripiprazole on Learning of Vocational Skills

5. april 2013 opdateret af: Dawn Velligan, The University of Texas Health Science Center at San Antonio

Do Patients Taking Aripiprazole Learn More in Vocational Skills Training Than Patients Taking Olanzapine?

STUDY PURPOSE: To study whether patients who have schizophrenia or schizoaffective disorder and are randomly assigned to switch to aripiprazole prior to participation in a brief vocational skills training (VST) will have improved cognitive functioning and learn more in VST than those randomly assigned to stay on olanzapine. There is evidence that VST is important in improving role functioning for schizophrenia patients, however, cognitive impairments limit the ability of some patients to benefit from skills training approaches. Patients switched from olanzapine to aripiprazole improve in terms of verbal learning and verbal learning has been shown to be a strong predictor of community outcome. It is unclear whether the cognitive benefits of switching to aripiprazole extend to improve learning of vocational skills.

Studieoversigt

Status

Afsluttet

Betingelser

Intervention / Behandling

Detaljeret beskrivelse

Many schizophrenia outpatients have cognitive deficits and poor vocational functioning. There is evidence from randomized controlled trials that vocational skills training is important in improving vocational role functioning for schizophrenia patients. However, it has become clear that cognitive impairments limit the ability of patients to benefit from skills training approaches. Recent research demonstrates that patients switched from olanzapine to aripiprazole improve in terms of verbal learning. Verbal learning has been found to be a strong predictor of multiple domains of community outcome. It is unclear whether the cognitive benefits of switching to aripiprazole extend to improve learning of vocational skills. This study examines whether aripiprazole can improve the ability to benefit from expensive rehabilitation programs focused on skill-building. Specifically, the study examines whether patients who switch from olanzapine to aripiprazole learn more and benefit more from a brief vocational skills program than patients who remain on olanzapine. Specific aims are as follows: (1) we hypothesize that patients on aripiprazole will demonstrate better scores on tests of cognitive functioning following twelve weeks of medication treatment than patients on olanzapine and (2) we hypothesize that patients on aripiprazole will have significantly higher scores on vocational performance following a brief (2-day) vocational training and assessment session than those on olanzapine. Furthermore, we hypothesize that these gains will be maintained following one week of non-exposure to the trained vocational tasks.

Undersøgelsestype

Interventionel

Tilmelding (Faktiske)

43

Fase

  • Ikke anvendelig

Kontakter og lokationer

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

Studiesteder

    • Texas
      • San Antonio, Texas, Forenede Stater, 78229
        • The University of Texas Health Science Center at San Antonio

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 52 år (Voksen)

Tager imod sunde frivillige

Ja

Køn, der er berettiget til at studere

Alle

Beskrivelse

Inclusion Criteria:

  • DSM-IV diagnosis of schizophrenia or schizoaffective disorder
  • Between ages of 18 and 52
  • On olanzapine for a minimum of 3 months prior to participation
  • Outpatient status for at least 3 months
  • Vision and hearing intact or corrected to extent that will allow participation in vocational training and cognitive testing
  • Score in impaired range on at least one test from a cognitive battery designed to be sensitive to impairments in schizophrenia
  • Ability to participate in the informed consent process, as evidenced by an assessment of the capacity to give consent for research developed by the Maryland Psychiatric Research Center (DeRenzo et al., 1998).

Exclusion Criteria:

  • History of head injury, mental retardation or neurological disorder
  • Below a 4th grade reading level (32) according to the WRAT-3
  • Taking multiple atypical antipsychotics
  • Taking any decanoate antipsychotic
  • Hospitalization in last 3 months
  • Employment
  • Alcohol or drug abuse that interferes with functioning or medication compliance

Studieplan

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

Hvordan er undersøgelsen tilrettelagt?

Design detaljer

  • Tildeling: Randomiseret
  • Interventionel model: Parallel tildeling
  • Maskning: Ingen (Åben etiket)

Hvad måler undersøgelsen?

Primære resultatmål

Resultatmål
Toilet Tank Assembly Task at 13 and 14 weeks
Card Sorting Task at baseline, 13 and 14 weeks

Sekundære resultatmål

Resultatmål
Brief Psychiatric Rating Scale at baseline and 13 week
Negative Symptom Assessment at baseline and 13 week
Global Assessment of Functioning Scale at baseline and 13 week
Social and Occupational Functioning Scale at baseline and 13 week
Work portion of Test of Adaptive Behaviors in Schizophrenia at baseline and 13 week
STAN neurocognitive tests at baseline and 13 week
Trails A at baseline and 13 week
Trails Aa at baseline and 13 week
Trails B at baseline and 13 week

Samarbejdspartnere og efterforskere

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

Sponsor

Samarbejdspartnere

Efterforskere

  • Ledende efterforsker: Dawn I Velligan, Ph.D., University of Texas Health Science Center in San Antonio
  • Studieleder: Mary D. Woolsey, M.S., The University of Texas Health Science Center at San Antonio

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. januar 2004

Primær færdiggørelse (Faktiske)

1. juni 2007

Studieafslutning (Faktiske)

1. juni 2007

Datoer for studieregistrering

Først indsendt

13. september 2005

Først indsendt, der opfyldte QC-kriterier

13. september 2005

Først opslået (Skøn)

22. september 2005

Opdateringer af undersøgelsesjournaler

Sidste opdatering sendt (Skøn)

8. april 2013

Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier

5. april 2013

Sidst verificeret

1. april 2013

Mere information

Begreber relateret til denne undersøgelse

Andre undersøgelses-id-numre

  • 023-0013-300

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 .