Randomised controlled trial of brief cognitive therapy for posttraumatic stress disorder (PTSD)

ISRCTN ISRCTN30480505
DOI https://doi.org/10.1186/ISRCTN30480505
Secondary identifying numbers 069777
Submission date
12/10/2010
Registration date
22/10/2010
Last edited
04/05/2017
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Mental and Behavioural Disorders
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data
Record updated in last year

Plain English summary of protocol

Background and study aims:
Recent research indicates that posttraumatic stress disorder can be treated effectively. The study compares two forms of a psychological treatment for posttraumatic stress disorder named Cognitive Therapy for PTSD. There is already evidence that this treatment is effective, but we do not know what way of delivering the treatment is the most effective and most acceptable to patients.

Who can participate?
Adults suffering from posttraumatic stress disorder as a result of traumas in adulthood (e.g., assault, accidents, disaster) who can regularly attend treatment sessions either in South London or Oxford.

What does the study involve?
Participants will receive one of the two forms of psychological treatment for posttraumatic stress disorder that are being compared in the study. No drugs are involved in the treatment. Two thirds of the participants will start treatment right away. The remaining third will wait 3 months before starting treatment, and will then receive one of the forms of psychological treatment. The decision about which treatment participants receive and when they start treatment will be made by chance.
In the first three months of treatment, participants receive either up to 12 weekly sessions with a therapist or up to 6 sessions with a therapist and 6 home sessions where they work through the therapy materials at their own pace. In the following three months, they receive either up to 3 or up to 2 further sessions with the therapist. Before and after treatment (or waiting for treatment), participants complete a number of assessments to monitor their improvement. They are interviewed and asked to fill in a number of questionnaires before, midway through and after the first three months of treatment, and three months, six months, one year and two years later.

What are the possible benefits and risks of participating?
All participants will receive an effective psychological treatment. The treatment involves talking and writing about the participants' memories of their trauma, and participants may experience short-term distress when confronting their memories. The discussion of the traumatic experience will be handled with sensitivity. Previous results showed that the treatment is well tolerated.

Where is the study run from?
1. Centre for Anxiety Disorders and Trauma, South London and Maudsley NHS Foundation Trust, London in collaboration with the Institute of Psychiatry, King's College London (UK)
2. Oxford Centre for Anxiety Disorders and Trauma, University of Oxford (UK)

When is the study starting and how long is it expected to run for?
September 2010 to May 2016

Who is funding the study?
Wellcome Trust (UK)

Who is the main contact?
Jennifer Readings
jennifer.readings@kcl.ac.uk

Contact information

Prof Anke Ehlers
Scientific

Centre for Anxiety Disorders and Trauma
University of Oxford
The Old Rectory
Paradise Square
Oxford
OX1 1TW
United Kingdom

ORCiD logoORCID ID 0000-0002-8742-0192

Study information

Study designRandomised controlled trial
Primary study designInterventional
Secondary study designRandomised controlled trial
Study setting(s)Hospital
Study typeTreatment
Participant information sheet Not available in web format, please use the contact details to request a patient information sheet
Scientific titleA randomised controlled trial of brief self-study assisted and standard cognitive therapy for posttraumatic stress disorder
Study acronymCTPTSD
Study objectivesBrief self-study assisted cognitive therapy for posttraumatic stress disorder (PTSD) is effective.
Ethics approval(s)South East London Research Ethics Committee (REC) 4, 07/09/2010, ref: 10/H0807/38
Health condition(s) or problem(s) studiedPosttraumatic stress disorder
Intervention1. Brief self-study assisted cognitive therapy for PTSD: up to 12 weekly sessions over 13 weeks, plus up to 3 sessions over next 3 months, last follow-up 2 years after end of weekly sessions
2. Standard cognitive therapy for PTSD: up to 6 sessions over 13 weeks, plus up to 2 sessions over next 3 months, follow-up 2 years after 13 week assessment
3. Wait list: 13 weeks wait, then random allocation to either standard or brief CT
Intervention typeBehavioural
Primary outcome measureMeasured at initial assessment and 13, 26, 39, 65 and 117 weeks:
1. Clinician-Administered PTSD Scale (CAPS)
2. Posttraumatic Diagnostic Scale (PDS)
3. Percent meeting DSM-IV criteria for PTSD
Secondary outcome measuresMeasured at initial assessment and 13, 26, 39, 65 and 117 weeks:
1. Beck Depression Inventory
2. Beck Anxiety Inventory
3. Work and Social Adjustment Scale
4. Endicott Quality of Life Scale
5. Client Satisfaction Questionnaire
Overall study start date07/09/2010
Completion date30/05/2016

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants90
Key inclusion criteria1. Diagnostic and Statistical Manual of Mental Disorders, 4th Edition (DSM-IV) diagnosis of PTSD
2. Current PTSD is linked to 1 to 2 discrete traumas
3. PTSD is the main mental health problem requiring treatment
4. Willing to accept random allocation
5. Aged 18 years and above, either sex
Key exclusion criteria1. Current substance dependence
2. Immediate suicide risk
3. Borderline personality disorder requiring treatment in its own right
4. History of psychosis
5. No memory for the trauma
6. Unable to conduct the therapy in English
7. Serious ongoing threat (e.g. still living with perpetrator)
Date of first enrolment01/10/2010
Date of final enrolment01/07/2013

Locations

Countries of recruitment

  • England
  • United Kingdom

Study participating centre

Institute of Psychiatry
London
SE5 8AF
United Kingdom

Sponsor information

Institute of Psychiatry, Kings College London (UK)
University/education

c/o Jennifer Liebscher
Research and Development Office
In collaboration with Centre for Anxiety Disorders and Trauma
South London and Maudsley NHS Foundation Trust
Room W 1.08
De Crespigny Park
London
SE5 8AF
England
United Kingdom

Website http://www.iop.kcl.ac.uk/departments/?locator=26
ROR logo "ROR" https://ror.org/0220mzb33

Funders

Funder type

Charity

Wellcome Trust
Private sector organisation / International organizations
Location
United Kingdom

Results and Publications

Intention to publish date30/05/2017
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryData sharing statement to be made available at a later date
Publication and dissemination planPlanned publication in a high-impact peer reviewed journal
IPD sharing planThe current data sharing plans for the current study are unknown and will be made available at a later date

Editorial Notes

07/10/2016: The overall trial end date was changed from 31/10/2015 to 30/05/2016.