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Trial registered on ANZCTR
Registration number
ACTRN12608000210370
Ethics application status
Approved
Date submitted
10/04/2008
Date registered
18/04/2008
Date last updated
27/11/2019
Date data sharing statement initially provided
27/11/2019
Type of registration
Prospectively registered
Titles & IDs
Public title
Evaluating Acceptance and Commitment Therapy as a psychological treatment for schizophrenia
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Scientific title
Evaluating the efficacy of Acceptance and Commitment Therapy as a psychological treatment for schizophrenia
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Secondary ID [1]
299928
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Nil
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Universal Trial Number (UTN)
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Trial acronym
lifengage project
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Linked study record
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Health condition
Health condition(s) or problem(s) studied:
Schizophrenia
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Condition category
Condition code
Mental Health
3184
3184
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0
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Schizophrenia
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Intervention/exposure
Study type
Interventional
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Description of intervention(s) / exposure
Acceptance and Commitment Therapy
Manualised psychological treatment, invovling the use of questioning, metaphors, experiential exercises and homework tasks, designed to promote distancing from psychotic symptoms and orientation towards acting in line with personal values and goals.
8 x 50 min one-to-one sessions, held weekly to fortnightly
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Intervention code [1]
2776
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Treatment: Other
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Intervention code [2]
2777
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Behaviour
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Comparator / control treatment
Befriending
Manualised psychosocial intervention, involving talking about day-to-day events and topics of interest to the person, and avoiding discussion of psychotic symptoms or other areas of difficulty.
8 x 50 min one-to-one sessions, held weekly to fortnightly
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Control group
Active
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Outcomes
Primary outcome [1]
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Positive and Negative Syndrome Scale (PANSS)
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Assessment method [1]
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Timepoint [1]
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Pre-treatment
Post-treatment
6 months post-treatment
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Secondary outcome [1]
6857
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Psychotic Symptom Rating Scales (PSYRATS)
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Assessment method [1]
6857
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Timepoint [1]
6857
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Pre-treatment
Post-treatment
6 months post-treatment
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Secondary outcome [2]
6858
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Social Functioning Scale
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Assessment method [2]
6858
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Timepoint [2]
6858
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Pre-treatment
Post-treatment
6 months post-treatment
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Secondary outcome [3]
6859
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Psychiatric service utilisation (outpatient consultations and inpatient admissions)
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Assessment method [3]
6859
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Timepoint [3]
6859
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6 month period prior to treatment
6 month period post-treatment
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Eligibility
Key inclusion criteria
Diagnosis of schizophrenia or schizoaffective disorder (using Structured Clinical Interview for DSM-IV - SCID)
Current residual hallucinations of delusions (score 4 or greater on Positive and Negative Syndrome Scale items P1 or P3)
Residual symptoms present continuously for past six months
On antipsychotic medication with dose in therapeutic range for past six months
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Minimum age
18
Years
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Maximum age
65
Years
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Sex
Both males and females
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Can healthy volunteers participate?
No
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Key exclusion criteria
Neurological disorder affecting cognitive function
IQ less than 70
Insufficient spoken English for participation
Change in antipsychotic medication in last eight weeks or planned at time of intake
Currently receiving other formal psychological treatment
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Study design
Purpose of the study
Treatment
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Allocation to intervention
Randomised controlled trial
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Procedure for enrolling a subject and allocating the treatment (allocation concealment procedures)
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Methods used to generate the sequence in which subjects will be randomised (sequence generation)
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Masking / blinding
Blinded (masking used)
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Who is / are masked / blinded?
The people assessing the outcomes
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Intervention assignment
Parallel
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Other design features
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Phase
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Type of endpoint/s
Efficacy
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Statistical methods / analysis
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Recruitment
Recruitment status
Completed
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Date of first participant enrolment
Anticipated
1/06/2008
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Actual
1/10/2008
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Date of last participant enrolment
Anticipated
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Actual
31/10/2011
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Date of last data collection
Anticipated
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Actual
30/11/2012
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Sample size
Target
106
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Accrual to date
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Final
96
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Recruitment in Australia
Recruitment state(s)
VIC
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Funding & Sponsors
Funding source category [1]
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Government body
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Name [1]
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National Health and Medical Research Council
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Address [1]
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Level 5
20 Allara Street
Canberra ACT 2601
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Country [1]
3286
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Australia
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Primary sponsor type
University
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Name
La Trobe University
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Address
Bundoora Campus
Victoria 3086
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Country
Australia
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Secondary sponsor category [1]
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None
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Name [1]
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n/a
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Address [1]
2941
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n/a
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Country [1]
2941
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Australia
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Ethics approval
Ethics application status
Approved
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Ethics committee name [1]
5272
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Melbourne Health MHREC
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Ethics committee address [1]
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Royal Melbourne Hospital Grattan Street Parkville Victoria 3050
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Ethics committee country [1]
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Australia
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Date submitted for ethics approval [1]
5272
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Approval date [1]
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01/01/2008
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Ethics approval number [1]
5272
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MHREC 2007.39
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Summary
Brief summary
Study examining how effective a psychological therapy called acceptance and commitment therapy is for people with persisting symptoms of severe mental illnesses such as schizophrenia.
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Trial website
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Trial related presentations / publications
Shawyer, F., Thomas, N., Morris, E.M.J., & Farhall, J. (2013). Theory of voices. In E.M.J. Morris, L.C. Johns & J.E. Oliver (Eds.), Acceptance and commitment therapy and mindfulness for psychosis (pp. 12-32). Chichester, England: Wiley-Blackwell. doi:10.1002/9781118499184.ch2 Farhall, J., Shawyer, F., Thomas, N., & Morris, E.M.J. (2013). Clinical assessment and assessment measures. In E.M.J. Morris, L.C. Johns & J.E. Oliver (Eds.), Acceptance and commitment therapy and mindfulness for psychosis (pp. 47-63). Chichester, England: Wiley-Blackwell. doi:10.1002/9781118499184.ch4 Thomas, N., Morris, E.M.J., Shawyer, F., & Farhall, J. (2013). Acceptance and commitment therapy for voices. In E.M.J. Morris, L.C. Johns & J.E. Oliver (Eds.), Acceptance and commitment therapy and mindfulness for psychosis (pp. 95-111). Chichester, England: Wiley-Blackwell. doi:10.1002/9781118499184.ch7 Thomas, N., Shawyer, F., Castle, D., Copolov, D., Hayes, S., & Farhall, J. (2014). A randomised controlled trial of acceptance and commitment therapy (ACT) for psychosis: Study protocol. BMC Psychiatry, 14, e198. doi:10.1186/1471-244X-14-198 Shawyer, F., Farhall, J., Thomas, N., Hayes, S. C., Gallop, B., Copolov, D., & Castle, D. (2017). A randomised controlled trial of acceptance and commitment therapy for psychosis. British Journal of Psychiatry, 210, 140-148. doi:10.1192/bjp.bp.116.182865
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Public notes
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Contacts
Principal investigator
Name
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Dr John Farhall
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Address
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School of Psychological Science
La Trobe University
Bundoora
VIC 3086
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Country
28517
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Australia
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Phone
28517
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+61 3 9479 1626
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Fax
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Email
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[email protected]
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Contact person for public queries
Name
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Dr Neil Thomas
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Address
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School of Psychological Science
La Trobe University
Bundoora
Victoria 3086
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Country
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Australia
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Phone
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03 9479 5045
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Fax
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Email
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[email protected]
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Contact person for scientific queries
Name
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Dr John Farhall
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Address
2602
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School of Psychological Science
La Trobe University
Bundoora
Victoria 3086
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Country
2602
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Australia
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Phone
2602
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03 9479 1626
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Fax
2602
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Email
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[email protected]
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Data sharing statement
Will individual participant data (IPD) for this trial be available (including data dictionaries)?
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No/undecided IPD sharing reason/comment
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What supporting documents are/will be available?
No Supporting Document Provided
Results publications and other study-related documents
Documents added manually
No documents have been uploaded by study researchers.
Documents added automatically
Source
Title
Year of Publication
DOI
Embase
A randomised controlled trial of acceptance and commitment therapy (ACT) for psychosis: study protocol.
2014
https://dx.doi.org/10.1186/1471-244X-14-198
Embase
Acceptance and commitment therapy for psychosis: Randomised controlled trial.
2017
https://dx.doi.org/10.1192/bjp.bp.116.182865
N.B. These documents automatically identified may not have been verified by the study sponsor.
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