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SchizophreniaNCT00995553

Remediation of Working Memory in Schizophrenia

A study testing Cognitive Remediation and Computer Skills in people with Schizophrenia and Schizoaffective Disorder, run by VA Office of Research and Development at 1 site in United States.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The primary aim of the study is to test the efficacy of a novel cognitive remediation intervention that targets working memory-related functions. To accomplish this goal, 80 volunteer patients with schizophrenia will be enrolled and randomized to either a cognitive remediation condition that targets working memory or… Read more about this study

Who is it for?
Ages 18 to 60 years
Conditions the study is for
Schizophrenia, Schizoaffective Disorder
What is being tested?
Cognitive Remediation and Computer Skills
Could I receive a placebo?
Yes, some participants may receive a placebo
How many people
86 participants
Where
1 siteUnited States
Study dates
Jan 2010to Dec 2015
Phase
Interventional
Are there results?
Yes, posted in the registrySummary in the doctors' view

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 60 years
  • All sexes
  • No healthy volunteers
  • Adult

Who may be able to join

  • Veterans with a DSM-IV diagnosis of schizophrenia or schizoaffective disorder
  • No hospitalizations in the previous 4 weeks
  • No antipsychotic medication changes in the previous 4 weeks
  • Age 18-60
  • Does not meet DSM-IV criteria for substance dependence in the previous 6 months or substance abuse in the previous month

Who cannot join

  • History of clinically significant head injury or neurological disease
  • Poor comprehension of the English language
  • History of diagnosis of mental retardation or pervasive developmental disorder
  • Unable to give informed consent

Trial locations and contacts

1 site in 1 country.

United States1 site
  • Minneapolis VA Health Care System, Minneapolis, MN

    Minneapolis, Minnesota, 55417

Other trials in United States

About this study

The primary aim of the study is to test the efficacy of a novel cognitive remediation intervention that targets working memory-related functions. To accomplish this goal, 80 volunteer patients with schizophrenia will be enrolled and randomized to either a cognitive remediation condition that targets working memory or a computer skills training intervention that teaches computer applications. In both conditions participants will receive computer training three times a week for 4 months. The investigators hypothesize that patients who receive the cognitive remediation intervention will demonstrate significantly greater change on neuropsychological measures of working memory and executive abilities than patients who receive the computer skills course. In addition, the investigators hypothesize that the intervention-induced cognitive change will be associated with concurrent improvements in functional capacity and psychosocial functioning in the community. A second study goal is to examine the stability of the intervention-induced changes in cognition. Cognition and psychosocial functioning will be reassessed 4 and 8 months after treatment termination to examine the stability of treatment effects and to assess whether a less intense maintenance training (once a week sessions) provides any additional benefit to participants. Lastly, this study will examine in an exploratory manner whether there are individual differences in treatment response. The Val158Met polymorphism of the COMT gene has been found to be associated with working memory and prefrontal dysfunction in schizophrenia. The study will test whether the COMT polymorphism is predictive of response to cognitive remediation.

Being tested
Cognitive Remediation, Computer Skills
Medical subject headings
Schizophrenia, Psychotic Disorders

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Cognitive RemediationBehavioural

    This is an adaptive, computer-based cognitive training intervention. Participants will complete 3 1-hour cognitive training sessions focused on attention and working memory processes weekly for 4 months.

  • Computer SkillsBehavioural

    This is a computer-based course in which participants will be taught how to use Microsoft Office applications and typing skills. Participants will attend a 1-hour course three times a week four 4-months.

Study groups in NCT00995553
Study groupRoleWhat they receive
Cognitive RemediationExperimentalA 48-session working memory focused cognitive remediation program is conducted. Training tasks have been selected from 3 software programs, PSS CogRehab, BrainTrain, and custom made N-back tasks.
Receives: Behavioral: Cognitive Remediation
Computer SkillsPlacebo comparatorThis is a 48-session, time matched comparison group in which participants practice keyboarding skills and the fundamentals of Microsoft Office Word, Powerpoint, and Excel programs.
Receives: Behavioral: Computer Skills

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Cognitive Assessment - MATRICS Consensus Cognitive Battery

    The Working Memory and Attention indexes of the MATRICS Consensus Cognitive Battery was used to assess near generalization of training with untrained tasks that were conceptually similar to training tasks. Each scale provide an age and gender corrected T-score. Thus, scores can range from 0-100, with a higher score indicating better performance.

    Measured: Post-intervention, within 2 weeks of completion of the 4 month intervention

Secondary outcomes (1)
  1. Functional Capacity - University of California, San Diego Performance-Based Skills Assessment

    The UPSA is a measure of the ability to apply cognitive skills to functional tasks. The total score from this scale was used. Scores may range from 0 - 100, with higher scores being better.

    Measured: Post-intervention, within 2 weeks of completion of the 4 month intervention

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted15 Oct 2009 (estimated)
  2. Study startJan 2010
  3. Primary completionApr 2015
  4. Study completionDec 2015

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Participant, Outcomes assessor
Enrolment
86 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00995553
Sponsor's protocol ID
D6981-R
Other IDs
1I01RX000180-01
Status last verified
Apr 2016
First submitted
14 Oct 2009
Last updated
25 Apr 2016
Data monitoring committee
No

Publications

  • Ramsay IS, Nienow TM, Marggraf MP, MacDonald AW. Neuroplastic changes in patients with schizophrenia undergoing cognitive remediation: triple-blind trial. Br J Psychiatry. 2017 Mar;210(3):216-222. doi: 10.1192/bjp.bp.115.171496. Epub 2017 Feb 2.

    PubMed 28153927

Questions about this trial

What is this clinical trial studying?

A study testing Cognitive Remediation and Computer Skills in people with Schizophrenia and Schizoaffective Disorder, run by VA Office of Research and Development at 1 site in United States.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 25 Apr 2016. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United States. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. Some participants in this study may receive a placebo. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

Yes. Results are posted in the registry (first posted 25 Apr 2016). A summary is in the For doctors view, and the full results are on ClinicalTrials.gov.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Cognitive Assessment - MATRICS Consensus Cognitive Battery (time frame: Post-intervention, within 2 weeks of completion of the 4 month intervention). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT00995553, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 25 Apr 2016.

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