Evidence map›Paper›PMID 28662715›Full record

Trial reportTrials2017

Cognitive Bias Modification for paranoia (CBM-pa): study protocol for a randomised controlled trial.

Jenny Yiend, Antonella Trotta, Christopher Meek, Ilvana Dzafic, Nora Baldus, Bryony Crane, Thomas Kabir, Daniel Stahl, Margaret Heslin, Sukhwinder Shergill and 2 more

Open access · goldAbstract readRandomized Controlled Trial
In one paragraph

Trial report in Trials, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.2field-weighted citation impact, top 13% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 26 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 2 countries.

Jenny YiendDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK. jenny.yiend@kcl.ac.uk.ORCID 0000-0002-1967-6292
Antonella TrottaDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Christopher MeekDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Ilvana DzaficQueensland Brain Institute, University of Queensland, Brisbane, QLD, Australia.
Nora BaldusDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Bryony CraneDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Thomas KabirThe McPin Foundation, London, UK.
Daniel StahlDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Margaret HeslinHealth Service and Population Research Department, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Sukhwinder ShergillDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Philip McGuireDepartment of Psychosis Studies, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
Emmanuelle PetersDepartment of Psychology, Institute of Psychiatry, Psychology and Neuroscience, King's College London, London, UK.
King's College London · GBMcPin Foundation · GBThe University of Queensland · AU

Funding

Department of Health PB-PG-0214-33007Medical Research Council G0901868Medical Research Council MR/N026063/1Wellcome Trust
6 · The paper itself

Abstract

backgroundPersecutory delusions are the most common type of delusions in psychosis and present in around 10-15% of the general population. Persecutory delusions are thought to be sustained by biased cognitive and emotional processes. Recent advances favour targeted interventions, focussing on specific symptoms or mechanisms. Our aim is to test the clinical feasibility of a novel psychological intervention, which manipulates biased interpretations toward more adaptive processing, in order to reduce paranoia in patients.

methodsThe 'Cognitive Bias Modification for paranoia' (CBM-pa) study is a feasibility, double-blind, randomised controlled trial (RCT) for 60 stabilised outpatients with persistent, distressing paranoid symptoms. Patients will be randomised at a 50:50 ratio, to computerised CBM-pa or a text-reading control intervention, receiving one 40-min session per week, for 6 weeks. CBM-pa involves participants reading stories on a computer screen, completing missing words and answering questions about each story in a way that encourages more helpful beliefs about themselves and others. Treatment as Usual will continue for patients in both groups. Patients will be assessed by a researcher blind to allocation, at baseline, each interim session, post treatment and 1- and 3-month follow-up post treatment. The primary outcome is the feasibility parameters (trial design, recruitment rate and acceptability) of the intervention. The secondary outcomes are clinical symptoms (including severity of paranoia) as assessed by a clinical psychologist, and 'on-line' measurement of interpretation bias and stress/distress. The trial is funded by the NHS National Institute for Health Research. DISCUSSION: This pilot study will test whether CBM-pa has the potential to be a cost-effective, accessible and flexible treatment. If the trial proves feasible and demonstrates preliminary evidence of efficacy, a fully powered RCT will be warranted.

trial registrationCurrent Controlled Trials ISRCTN: 90749868 . Retrospectively registered on 12 May 2016.

Indexed as

AdolescentAdultAgedClinical ProtocolsCognitive Behavioral TherapyCost-Benefit AnalysisDelusionsDouble-Blind MethodFeasibility StudiesFemaleHealth Care CostsHumansLondonMaleMiddle AgedParanoid DisordersCognitive Bias ModificationComputerised therapyInterpretation biasParanoiaPersecutory delusionsPsychosisRCT

Identifiers

PMID28662715
PMCPMC5492504
OpenAlexW2727262860

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.