ClinicalTrials.gg
CompletedNCT01704833CBTpUpdated Dec 4, 2018

Cognitive Behavioral Therapy for Paranoia in Schizophrenia

An interventional study of Paranoia-Focused Cognitive Behavioral Therapy (PFCBT) in Paranoid Delusions, sponsored by Weill Medical College of Cornell University. Completed at 1 site in United States. Open to participants aged 18 Years to 65 Years. Per ClinicalTrials.gov, last updated 2018-12-04.

Sponsored by Weill Medical College of Cornell University · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
24
Allocation
Randomized
Ages
18 Years to 65 Years
Sex
All
01

Study summary

The main objective of this study is to determine the preliminary efficacy of Paranoia-Focused Cognitive Behavioral Therapy (PFCBT) relative to standard care in the treatment of persecutory delusions in patients diagnosed with schizophrenia or schizoaffective Disorder.

Read the detailed description

Paranoia-Focused Cognitive Behavioral Therapy (PFCBT) is a manualized intervention that combines group and individual modalities to reduce paranoia-biased information-processing and social avoidance, and to increase insight and reality testing capacity.

This is a randomized controlled clinical trial. Twenty four adults ages 18-65 with the primary DSM-IV Schizophrenia and Schizoaffective disorder and drug-refractory persecutory delusions will be recruited from outpatient clinics in New York City Metropolitan area. Participants will be randomly assigned to either experimental or control group. The experimental group will receive PFCBT in addition to standard care and the control group will receive standard care alone. PFCBT will include participation in one group session and one individual therapy session weekly over the 15 weeks. The preliminary efficacy of the intervention will be evaluated using standardized measures by blind evaluators conducted at baseline, post-treatment, and at 6-months post-termination follow-up.

02

Conditions studied

  • Paranoid Delusions

Keywords

  • Psychosis
  • Paranoia
  • Cognitive Behavioral Therapy
  • Delusions
  • Group Therapy
03

In context

Psychotic Disorders

1,587 studies on the registry are indexed under Psychotic Disorders; 281 are open to participants now.

This study's enrollment of 24 is below the median of 65 across 1,320 interventional studies indexed under Psychotic Disorders.

Browse Psychotic Disorders studies →

Lead sponsor

Weill Medical College of Cornell University is the lead sponsor of 892 studies on the registry; 165 are open to participants now.

Of its 123 completed or terminated interventional studies of FDA-regulated products, 94 (76%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Age 18 to 65 years
  • Met DSM IV diagnostic criteria for schizophrenia or schizoaffective disorder, confirmed by the Clinical Structural Diagnostic Interview (SCID, First et al, 1997) -Reported persistent and distressing paranoid delusion(s);
  • A minimum severity score of 4 point Persecution subscale on The Positive and Negative Syndrome Scale (PANSS)
  • Had an adequate trial (6 months or more) and were stabilized on antipsychotic medications (no change in psychiatric medication prescribed in the last month

Exclusion criteria

Exclusion Criteria:

-Substance misuse or medical disorder identified as the primary cause of delusions

05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Outcomes assessor)
Enrollment
24 participants (actual)

Study arms

  • Experimental
    Cognitive Behavioral Therapy

    This group receives 15 weeks of Paranoia-Focused Cognitive Behavioral Therapy (PFCBT) in addition to standard care.

    Behavioral: Paranoia-Focused Cognitive Behavioral Therapy (PFCBT)

  • No intervention
    Treatment as Usual

    This group receives standard care only.

Interventions

  • BehavioralParanoia-Focused Cognitive Behavioral Therapy (PFCBT)

    The PFCBT is a 15-week Program that includes weekly group and individual sessions.

06

What researchers measure

Primary outcomes

  1. Change from Baseline in Persecution Severity at week 16 and at week 42.

    Measured by the Persecution sub-scale on Positive and Negative Syndrome Scale (PANSS).

    Time frame: Measured at baseline, at week 16, and at week 42.

Secondary outcomes

  1. Change from Baseline in Attributional Style at week 16.

    Internal Personal and Situational Attributions Questionnaire.Measures attributional style (a tendency to attribute cause for negative events to situational or personal causes).

    Time frame: Measured at baseline and at week 16.

  2. Change from Baseline in a Tendency to Jump to Conclusions at week 16.

    Measured by the BEADS Task. Measures a tendency to jump to conclusions when making a judgment.

    Time frame: Measured at baseline and at week 16.

  3. Change from Baseline in Cognitive Insight at week 16.

    Beck Cognitive Insight Scale. Measures cognitive insight.

    Time frame: Measured at baseline and at week 16.

  4. Change from Baseline in Dimensions of Paranoid Delusions

    Psychotic Symptom Rating Scales (PSYRATS), Delusions. Measure dimensions of delusions.

    Time frame: Measured at baseline, at week 16 and at week 42.

Other outcomes

  1. The Working Alliance Inventory (WAI)

    Used to assess the participants' perceived alliance to the therapist.

    Time frame: Measured at week 16 (post CBT).

  2. The Empathy Scale (ES)

    Measures participants' perceptions of the therapist's warmth, genuineness, and empathy.

    Time frame: Measured at week 16 (post CBT).

  3. Group Cohesiveness Scale (GCS)

    Measures group cohesiveness.

    Time frame: Measured at week 16 (post CBT).

  4. Changes from Baseline in Brain Circuitry at week 42.

    'Linguistic threat' fMRI paradigm is used to monitor brain circuitry changes associated with PFCBT.

    Time frame: Measured at baseline and at week 42.

07

Study locations

1 site
  • Weill Cornell Medical College
    New York, New York 10065, United States
08

Timeline

Tracking since Sep 25, 2026
Not marked actual or estimatedDates not marked actual or estimated

The record gives a start of Sep 2006, a primary completion of Sep 2009 and a completion of Jun 2017. It does not say whether these dates are actual or estimated.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 27, 2012
First posted
Oct 11, 2012
Start
Sep 2006
Primary completionActual
Sep 2009
CompletionActual
Jun 2017
Last update
Dec 4, 2018
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Dec 4, 2018, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT01704833
Collaborators
National Alliance for Research on Schizophrenia and Depression
Responsible party
Sponsor
First posted
Oct 11, 2012
Start date
Sep 2006
Primary completion
Sep 2009
Completion
Jun 2017
Last update
Dec 4, 2018

Study contacts

Yulia Landa, Psy D.
principal investigator · Weill Medical College of Cornell University

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Dec 2018. You cannot join it, but the record below documents what was studied.

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