NCT04756388

Brief Summary

Executive Function Training is a cognitive training approach that specifically trains executive functioning for people with schizophrenia-spectrum disorders. The current study compares full executive function training to computerized training alone and to strategy monitoring alone.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
90

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Feb 2021

Longer than P75 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

February 1, 2021

Completed
10 days until next milestone

First Submitted

Initial submission to the registry

February 11, 2021

Completed
5 days until next milestone

First Posted

Study publicly available on registry

February 16, 2021

Completed
4.1 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 19, 2025

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

March 19, 2025

Completed
Last Updated

July 29, 2025

Status Verified

July 1, 2025

Enrollment Period

4.1 years

First QC Date

February 11, 2021

Last Update Submit

July 24, 2025

Conditions

Keywords

psychosisschizophreniacognitive remediationexecutive functioningstrategy monitoringcomputerized practicecognitive training

Outcome Measures

Primary Outcomes (1)

  • Specific Levels of Functioning Scale

    The SLOF is a behavioral questionnaire assessing community functioning. It includes 43 items, grouped into six subscales: Physical functioning; Personal care skills; Interpersonal relationships; Social acceptability; Activities of community living; and Work skills. Each of the 43 questions in the above subscales is rated on a 5-point Likert scale (1 = poorest function, 5 = best function) with anchors describing the frequency of the behavior and/or patient's level of independence. The higher the total score, the better the overall functioning of the individual. Scores range from 43 - 215.

    Change from Baseline to 12-Week Follow-up

Secondary Outcomes (12)

  • Cambridge Neuropsychological Test Automated Battery (CANTAB)

    Change from Baseline to 12-Week Follow-up

  • Wide Range Achievement Test (WRAT)

    Change from Baseline to 12-Week Follow-up

  • Questionnaire About the Process of Recovery (QPR)

    Change from Baseline to 12-Week Follow-up

  • Brief Psychiatric Rating Scale (BPRS)

    Change from Baseline to 12-Week Follow-up

  • Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-Q)

    Change from Baseline to 12-Week Follow-up

  • +7 more secondary outcomes

Study Arms (3)

Executive Training

ACTIVE COMPARATOR

The Executive Training (ET) condition will consist of the ET intervention that Dr. Best previously developed and evaluated. ET sessions consist of 50% of the session practicing computerized cognitive training exercises, and 50% of the session developing cognitive strategies to use in the computerized exercises. Participants are encouraged to complete 40 minutes of computerized training per day, and complete strategy worksheets, at home between sessions. All interventions will be delivered virtually in the participant's home and group sessions will be conducted using the online platform Zoom.

Other: Strategy DevelopmentOther: Computerized Cognitive Training

Strategy Development only

EXPERIMENTAL

In Strategy Development only participants will engage in cognitive strategy discussions to develop new executive function strategies that can be used in daily life. Between sessions, participants will be encouraged to practice their cognitive strategies in their daily life and track their strategies using the strategy worksheet. There will be no computerized cognitive training in this condition. All interventions will be delivered virtually in the participant's home and group sessions will be conducted using the online platform Zoom.

Other: Strategy Development

Computerized Cognitive Training only

EXPERIMENTAL

In Computerized Cognitive Training only participants will spend the entire one-hour session practicing computerized training exercises. Between sessions participants will be encouraged to practice the computerized exercises at home for 40 minutes per day. There will be no strategy development in this condition. All interventions will be delivered virtually in the participant's home and group sessions will be conducted using the online platform Zoom.

Other: Computerized Cognitive Training

Interventions

Participants engage in cognitive strategy discussions to develop new executive function strategies that can be used in daily life, and track their strategies between sessions. No computerized cognitive training.

Executive TrainingStrategy Development only

Participants practice computerized training exercises targeting executive functioning skills, and complete computerized exercises between sessions.

Computerized Cognitive Training onlyExecutive Training

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • clinical diagnosis of schizophrenia, schizoaffective disorder or any other psychotic disorder (based on DSM-V)
  • years of age
  • know how to use a computer
  • not abusing drugs or alcohol
  • can read and speak English.

You may not qualify if:

  • enrolled in a cognitive training program in the last 6 months
  • neurological disease or neurological damage
  • medical illnesses that can change neurocognitive function
  • medical history of head injury with loss of consciousness
  • physical handicaps

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Toronto Scarborough

Toronto, Ontario, M1C 1A4, Canada

Location

Related Publications (21)

  • Wu EQ, Birnbaum HG, Shi L, Ball DE, Kessler RC, Moulis M, Aggarwal J. The economic burden of schizophrenia in the United States in 2002. J Clin Psychiatry. 2005 Sep;66(9):1122-9. doi: 10.4088/jcp.v66n0906.

    PMID: 16187769BACKGROUND
  • Palmer BA, Pankratz VS, Bostwick JM. The lifetime risk of suicide in schizophrenia: a reexamination. Arch Gen Psychiatry. 2005 Mar;62(3):247-53. doi: 10.1001/archpsyc.62.3.247.

    PMID: 15753237BACKGROUND
  • Eack SM, Newhill CE. Psychiatric symptoms and quality of life in schizophrenia: a meta-analysis. Schizophr Bull. 2007 Sep;33(5):1225-37. doi: 10.1093/schbul/sbl071. Epub 2007 Jan 4.

    PMID: 17204532BACKGROUND
  • Swartz MS, Perkins DO, Stroup TS, Davis SM, Capuano G, Rosenheck RA, Reimherr F, McGee MF, Keefe RS, McEvoy JP, Hsiao JK, Lieberman JA; CATIE Investigators. Effects of antipsychotic medications on psychosocial functioning in patients with chronic schizophrenia: findings from the NIMH CATIE study. Am J Psychiatry. 2007 Mar;164(3):428-36. doi: 10.1176/ajp.2007.164.3.428.

    PMID: 17329467BACKGROUND
  • Eack SM, Hogarty GE, Cho RY, Prasad KM, Greenwald DP, Hogarty SS, Keshavan MS. Neuroprotective effects of cognitive enhancement therapy against gray matter loss in early schizophrenia: results from a 2-year randomized controlled trial. Arch Gen Psychiatry. 2010 Jul;67(7):674-82. doi: 10.1001/archgenpsychiatry.2010.63. Epub 2010 May 3.

    PMID: 20439824BACKGROUND
  • Subramaniam K, Luks TL, Fisher M, Simpson GV, Nagarajan S, Vinogradov S. Computerized cognitive training restores neural activity within the reality monitoring network in schizophrenia. Neuron. 2012 Feb 23;73(4):842-53. doi: 10.1016/j.neuron.2011.12.024.

    PMID: 22365555BACKGROUND
  • Best MW, Milanovic M, Iftene F, Bowie CR. A Randomized Controlled Trial of Executive Functioning Training Compared With Perceptual Training for Schizophrenia Spectrum Disorders: Effects on Neurophysiology, Neurocognition, and Functioning. Am J Psychiatry. 2019 Apr 1;176(4):297-306. doi: 10.1176/appi.ajp.2018.18070849. Epub 2019 Mar 8.

    PMID: 30845819BACKGROUND
  • Best MW, Gale D, Tran T, Haque MK, Bowie CR. Brief executive function training for individuals with severe mental illness: Effects on EEG synchronization and executive functioning. Schizophr Res. 2019 Jan;203:32-40. doi: 10.1016/j.schres.2017.08.052. Epub 2017 Sep 19.

    PMID: 28931460BACKGROUND
  • Wykes T, Spaulding WD. Thinking about the future cognitive remediation therapy--what works and could we do better? Schizophr Bull. 2011 Sep;37 Suppl 2(Suppl 2):S80-90. doi: 10.1093/schbul/sbr064.

    PMID: 21860051BACKGROUND
  • Best MW, Bowie CR. A review of cognitive remediation approaches for schizophrenia: from top-down to bottom-up, brain training to psychotherapy. Expert Rev Neurother. 2017 Jul;17(7):713-723. doi: 10.1080/14737175.2017.1331128. Epub 2017 May 24.

    PMID: 28511562BACKGROUND
  • Ruse SA, Harvey PD, Davis VG, Atkins AS, Fox KH, Keefe RS. Virtual Reality Functional Capacity Assessment In Schizophrenia: Preliminary Data Regarding Feasibility and Correlations with Cognitive and Functional Capacity Performance. Schizophr Res Cogn. 2014 Mar;1(1):e21-e26. doi: 10.1016/j.scog.2014.01.004.

    PMID: 25083416BACKGROUND
  • Neil ST, Kilbride M, Pitt L, Nothard S, Welford M, Sellwood W, Morrison AP. The questionnaire about the process of recovery (QPR): A measurement tool developed in collaboration with service users. Psychosis. 2009; 1(2): 145-155.

    BACKGROUND
  • Faustman WO, Overall JE. (1999). Brief Psychiatric Rating Scale. In M. E. Maruish (Ed.), The use of psychological testing for treatment planning and outcomes assessment (p. 791-830). Lawrence Erlbaum Associates Publishers.

    BACKGROUND
  • Endicott J, Nee J, Harrison W, Blumenthal R. Quality of Life Enjoyment and Satisfaction Questionnaire: a new measure. Psychopharmacol Bull. 1993;29(2):321-6.

    PMID: 8290681BACKGROUND
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    BACKGROUND
  • Fowler D, Freeman D, Smith B, Kuipers E, Bebbington P, Bashforth H, Coker S, Hodgekins J, Gracie A, Dunn G, Garety P. The Brief Core Schema Scales (BCSS): psychometric properties and associations with paranoia and grandiosity in non-clinical and psychosis samples. Psychol Med. 2006 Jun;36(6):749-59. doi: 10.1017/S0033291706007355. Epub 2006 Mar 27.

    PMID: 16563204BACKGROUND
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    BACKGROUND
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    PMID: 7126941BACKGROUND
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    PMID: 7131245BACKGROUND
  • van der Gaag M, Schutz C, Ten Napel A, Landa Y, Delespaul P, Bak M, Tschacher W, de Hert M. Development of the Davos assessment of cognitive biases scale (DACOBS). Schizophr Res. 2013 Mar;144(1-3):63-71. doi: 10.1016/j.schres.2012.12.010. Epub 2013 Jan 15.

    PMID: 23332365BACKGROUND
  • Llerena K, Park SG, McCarthy JM, Couture SM, Bennett ME, Blanchard JJ. The Motivation and Pleasure Scale-Self-Report (MAP-SR): reliability and validity of a self-report measure of negative symptoms. Compr Psychiatry. 2013 Jul;54(5):568-74. doi: 10.1016/j.comppsych.2012.12.001. Epub 2013 Jan 22.

    PMID: 23351831BACKGROUND

Related Links

MeSH Terms

Conditions

Psychotic DisordersSchizophrenia

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental Disorders

Study Officials

  • Michael Best, PhD

    University of Toronto

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
Participants will be informed that they will be randomized to one of three types of cognitive training, however, will have no idea what the conditions or the hypotheses. Outcome assessors will be blind to condition.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants will be randomized to receive Computerized Cognitive Training only, Strategy Development only, or both (Executive Functioning Training; ET).
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

February 11, 2021

First Posted

February 16, 2021

Study Start

February 1, 2021

Primary Completion

March 19, 2025

Study Completion

March 19, 2025

Last Updated

July 29, 2025

Record last verified: 2025-07

Data Sharing

IPD Sharing
Will not share

Locations