NCT04752449

Brief Summary

Participants with schizophrenia-spectrum disorders who are experiencing active symptoms of psychosis will randomized to either receive 6 months of individual cognitive behavioural therapy for psychosis or to receive treatment as usual. Participants will be assessed at baseline, 6 months, and 12 months.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
70

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
7 days until next milestone

First Submitted

Initial submission to the registry

February 8, 2021

Completed
4 days until next milestone

First Posted

Study publicly available on registry

February 12, 2021

Completed
3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

January 26, 2024

Completed
12 months until next milestone

Study Completion

Last participant's last visit for all outcomes

January 10, 2025

Completed
Last Updated

July 29, 2025

Status Verified

July 1, 2024

Enrollment Period

3 years

First QC Date

February 8, 2021

Last Update Submit

July 24, 2025

Conditions

Keywords

cbtpsychosisschizophreniacbtpcognitive behavioural therapypsychotherapyvirtual

Outcome Measures

Primary Outcomes (1)

  • Positive and Negative Syndrome Scale (PANSS) Total Score

    The PANSS is a 30-item semi-structured interview assessing positive, negative symptoms and general psychopathology. Each item is scored on a 7-point scale (1 = absent, 2 = minimal, 3 = mild, 4 = moderate, 5 = moderate severe, 6 = severe, 7 = extreme). The lowest score would be a 30 and the highest score would be 210. A higher score would indicate increased symptomology.

    Change from Baseline to Follow-up (6 months post treatment)

Secondary Outcomes (13)

  • Personal and Social Performance Scale (PSP)

    Change from Baseline to Follow-up (6 months post treatment)

  • The Psychotic Symptom Rating Scales (PSYRATS)

    Change from Baseline to Follow-up (6 months post treatment)

  • Calgary Depression Scale for Schizophrenia (CDSS)

    Change from Baseline to Follow-up (6 months post treatment)

  • The Questionnaire About the Process of Recovery (QPR)

    Change from Baseline to Follow-up (6 months post treatment)

  • Beliefs About Paranoia Scale (BAPS)

    Change from Baseline to Follow-up (6 months post treatment)

  • +8 more secondary outcomes

Study Arms (2)

Virtual Cognitive Behavioural Therapy for Psychosis

EXPERIMENTAL

CBT will be delivered according to an established manual that the PI has previously used successfully for in-person treatment. Treatment will consist of individual sessions with a psychologist employed by the University of Toronto for 1-hour per week for 6-months, or by one of the listed clinical graduate students under his supervision. All treatment will be delivered virtually in the participant's home using the online platform Zoom which is PHIPA/PIPEDA compliant. If participants do not have the technology required for virtual sessions, then a tablet will be loaned to them for the duration of treatment. This treatment will be delivered in addition to usual care and no changes to usual care will be required.

Behavioral: Virtual Cognitive Behavioural Therapy for Psychosis

Treatment as Usual

NO INTERVENTION

Participants continue with their regular standard of care without the addition of virtual Cognitive Behavioural Therapy for Psychosis.

Interventions

CBT will be delivered according to an established manual that the PI has previously used successfully for in-person treatment. Treatment will consist of individual sessions with a psychologist employed by the University of Toronto for 1-hour per week for 6-months, or by one of the listed clinical graduate students under his supervision. All treatment will be delivered virtually in the participant's home using the online platform Zoom which is PHIPA/PIPEDA compliant. If participants do not have the technology required for virtual sessions, then a tablet will be loaned to them for the duration of treatment. This treatment will be delivered in addition to usual care and no changes to usual care will be required.

Also known as: CBT, CBTp
Virtual Cognitive Behavioural Therapy for Psychosis

Eligibility Criteria

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

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of Toronto Scarborough

Scarborough Village, Ontario, M1C 1A4, Canada

Location

Related Publications (28)

  • 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
  • Chadwick P. Person-based cognitive therapy for distressing psychosis. (Wiley & Sons Ltd., 2006).

    BACKGROUND
  • Kingdon DG, Turkington D. Cognitive Therapy of Schizophrenia. The Guilford Press, 2005.

    BACKGROUND
  • Morrison AP, Renton JC, Dunn H, Williams S, Bentall RP. Cognitive Therapy for Psychosis: A Formulation-Based Approach. Routledge, 2004

    BACKGROUND
  • van der Gaag M, Valmaggia LR, Smit F. The effects of individually tailored formulation-based cognitive behavioural therapy in auditory hallucinations and delusions: a meta-analysis. Schizophr Res. 2014 Jun;156(1):30-7. doi: 10.1016/j.schres.2014.03.016. Epub 2014 Apr 14.

    PMID: 24731619BACKGROUND
  • Burns AM, Erickson DH, Brenner CA. Cognitive-behavioral therapy for medication-resistant psychosis: a meta-analytic review. Psychiatr Serv. 2014 Jul;65(7):874-80. doi: 10.1176/appi.ps.201300213.

    PMID: 24686725BACKGROUND
  • Velthorst E, Koeter M, van der Gaag M, Nieman DH, Fett AK, Smit F, Staring AB, Meijer C, de Haan L. Adapted cognitive-behavioural therapy required for targeting negative symptoms in schizophrenia: meta-analysis and meta-regression. Psychol Med. 2015 Feb;45(3):453-65. doi: 10.1017/S0033291714001147. Epub 2014 May 22.

    PMID: 24993642BACKGROUND
  • Psychosis and schizophrenia in adults: prevention and management. London: National Institute for Health and Care Excellence (NICE); 2014 Mar. Available from http://www.ncbi.nlm.nih.gov/books/NBK555203/

    PMID: 32207892BACKGROUND
  • Norman R, Lecomte T, Addington D, Anderson E. Canadian Treatment Guidelines on Psychosocial Treatment of Schizophrenia in Adults. Can J Psychiatry. 2017 Sep;62(9):617-623. doi: 10.1177/0706743717719894. Epub 2017 Jul 13.

    PMID: 28703017BACKGROUND
  • Grant PM, Huh GA, Perivoliotis D, Stolar NM, Beck AT. Randomized trial to evaluate the efficacy of cognitive therapy for low-functioning patients with schizophrenia. Arch Gen Psychiatry. 2012 Feb;69(2):121-7. doi: 10.1001/archgenpsychiatry.2011.129. Epub 2011 Oct 3.

    PMID: 21969420BACKGROUND
  • Morrison AP, Law H, Carter L, Sellers R, Emsley R, Pyle M, French P, Shiers D, Yung AR, Murphy EK, Holden N, Steele A, Bowe SE, Palmier-Claus J, Brooks V, Byrne R, Davies L, Haddad PM. Antipsychotic drugs versus cognitive behavioural therapy versus a combination of both in people with psychosis: a randomised controlled pilot and feasibility study. Lancet Psychiatry. 2018 May;5(5):411-423. doi: 10.1016/S2215-0366(18)30096-8. Epub 2018 Apr 5.

    PMID: 29605187BACKGROUND
  • Best MW, CIHR Knowledge Synthesis: Examining the Efficacy of Psychosocial Interventions for Schizophrenia-Spectrum disorders delivered through virtual care. 2020.

    BACKGROUND
  • Morrison AP, Renton JC, Dunn H, Williams S, Bentall RP. Cognitive therapy for psychosis: A formulation-based approach. Routledge, 2004.

    BACKGROUND
  • Kay SR, Fiszbein A, Opler LA. The positive and negative syndrome scale (PANSS) for schizophrenia. Schizophr Bull. 1987;13(2):261-76. doi: 10.1093/schbul/13.2.261.

    PMID: 3616518BACKGROUND
  • Nasrallah H, Morosini P, Gagnon DD. Reliability, validity and ability to detect change of the Personal and Social Performance scale in patients with stable schizophrenia. Psychiatry Res. 2008 Nov 30;161(2):213-24. doi: 10.1016/j.psychres.2007.11.012. Epub 2008 Oct 11.

    PMID: 18848731BACKGROUND
  • Haddock G, McCarron J, Tarrier N, Faragher EB. Scales to measure dimensions of hallucinations and delusions: the psychotic symptom rating scales (PSYRATS). Psychol Med. 1999 Jul;29(4):879-89. doi: 10.1017/s0033291799008661.

    PMID: 10473315BACKGROUND
  • Addington D, Addington J, Maticka-Tyndale E. Assessing depression in schizophrenia: the Calgary Depression Scale. Br J Psychiatry Suppl. 1993 Dec;(22):39-44.

    PMID: 8110442BACKGROUND
  • Beck AT, Weissman F. Dysfunctional Attitudes Scale (DAS). 1987.

    BACKGROUND
  • 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
  • Bernstein DP, Fink L, Handelsman L, Foote J. Childhood trauma questionnaire. Assessment of family violence: A handbook for researchers and practitioners. 1998.

    BACKGROUND
  • Horvath AO, Greenberg LS. Development and validation of the Working Alliance Inventory. Journal of Counselling Psychology. 1989; 36(2): 223.

    BACKGROUND
  • Ross RM, McKay R, Coltheart M, Langdon R. Jumping to Conclusions About the Beads Task? A Meta-analysis of Delusional Ideation and Data-Gathering. Schizophr Bull. 2015 Sep;41(5):1183-91. doi: 10.1093/schbul/sbu187. Epub 2015 Jan 22.

    PMID: 25616503BACKGROUND
  • Diehl C, Yin S, Markell H, Gallop R, Gibbons MBC, Crits-Christoph P. The Measurement of Cognitive Schemas: Validation of the Psychological Distance Scaling Task in a Community Mental Health Sample. Int J Cogn Ther. 2017;10(1):17-33. doi: 10.1521/ijct_2016_09_18.

    PMID: 29250215BACKGROUND
  • 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

MeSH Terms

Conditions

Psychotic DisordersSchizophreniaColor Vision Defects

Condition Hierarchy (Ancestors)

Schizophrenia Spectrum and Other Psychotic DisordersMental DisordersVision DisordersSensation DisordersNeurologic ManifestationsNervous System DiseasesCone DystrophyEye Diseases, HereditaryEye DiseasesSigns and SymptomsPathological Conditions, Signs and Symptoms

Study Officials

  • Michael W Best, PhD

    University of Toronto

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
Participants will be informed after their first assessment whether they were randomized to CBTp or TAU. Those in TAU are offered CBTp at the end of the study period. Assessors remain blind throughout the study and therefore do not partake in the treatment intervention. Due to the nature of the study, the treatment providers cannot be blinded as those they treat have clearly been randomized to the CBTp condition. The investigator is not blind to any of the randomization outcomes.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Participants will be randomized to receive either Virtual Cognitive Behavioural Therapy or to Treatment as Usual. All participants who receive Treatment as Usual will be offered CBT at the end of the study period.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

February 8, 2021

First Posted

February 12, 2021

Study Start

February 1, 2021

Primary Completion

January 26, 2024

Study Completion

January 10, 2025

Last Updated

July 29, 2025

Record last verified: 2024-07

Data Sharing

IPD Sharing
Will not share

Locations