ISRCTN ISRCTN79584912
DOI https://doi.org/10.1186/ISRCTN79584912
Secondary identifying numbers NL36649.091.11
Submission date
22/12/2011
Registration date
27/02/2012
Last edited
19/02/2019
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

Plain English summary of protocol

Background and study aims
People who suffer from psychosis very often also have other disorders at the same time, such as anxiety, depression or post-traumatic stress disorder (PTSD). Patients with psychosis and PTSD often ask for treatment of PTSD, but clinicians are reluctant to do so as they fear a worsening of symptoms, although there is no proof of this in the scientific literature. There are a number of small studies that show successful reduction of symptoms and no unwanted effects such suicidal ideation and gestures, worsening of symptoms, hospital admissions, crises contacts with the mental health services and so on. This study is treating PTSD in people with a lifetime psychotic disorder to find out if symptoms will reduce and no accidents will happen. It will compare two forms of therapy that have proven to be effective in the treatment of PTSD.

Who can participate?
Adults who have a lifetime psychotic disorder and PTSD and are registered in one of the 13 participating institutions.

What does the study involve?
Patients will be randomly allocated to one of three conditions: prolonged exposure (PE), eye movement desensitisation and reprocessing (EMDR), or waiting list. Prolonged exposure is a proven effective treatment for PTSD. The patient will have a maximum of eight 90-minute sessions. In the session people are asked to think, imagine and relive the most terrifying traumatic event. Recordings of the sessions have to be listened at home on a daily schedule. The experience is that anxiety will wane over time. When anxiety disappears another traumatic event is selected and the procedure is repeated. EMDR is also a proven effective treatment for PTSD. The patient is asked to relive the traumatic event and select the most horrible picture and describe what makes this event still so horrible. This is formulated in a negative cognition and a goal positive cognition is formulated as well. Then the patient is asked to imagine the most horrible picture and then look at the fingertips of the therapist, who waives the fingers back and forth. The patient’s eyes moves from left to right in a quite high pace. When anxiety disappears another traumatic event is selected and the procedure is repeated. The waiting list group has to wait for 6 months and then has the therapy of choice. All groups are assessed at the beginning, after two months at the end of treatment, and after 6 months. The PE and EMDR groups have a last assessment at 12 months. Patients who hallucinate are also assessed for two times during six days at the beginning and end of treatment with the PSYMATE. This is a device that looks like a mobile phone and rings ten times a day. The participant then has to answer some questions on the place he/she is, the company, the thoughts, the feelings, and his/her behaviour.

What are the possible benefits and risks of participating?
Not provided at time of registration.

Where is the study run from?
The study is a multi-site study in 13 mental health services in the Netherlands. These are GGz Noord-Holland-Noord in Almaar and surroundings, Arkin in Amsterdam, GGz Duin en Bollenstreek (Leiden and surroundigs), Lentis (province of Groningen), Yulius (Dordrecht and surroundings), Altrecht (Utrecht and surrounidngs), Parnassia Psychiatric Institute (The Hague and Zoetermeer), Bavo-Europoort (Rotterdam), Pro Persona (Nijmegen and surroundings), GGz Eindhoven (Eindhoven and surroundings), GGz Oost Brabant (Boxmeer and Oss and surroundings), GGz Drenthe (province of Drenthe), GGNet (Apeldoorn, Doetinchem, Zutphen and surroundings).

When is study starting and how long is it expected to run for?
The study started in September 2011 and is expected to run for about three years. For the PE and EMDR patients the study will take 12 months: a 2-month treatment intervention with 6-month and 12-month follow-up assessments. The waiting list group will have a waiting period of 6 months and then a 2-month treatment phase.

Who is funding the study?
The study is funded by the Stichting tot Steun VCVGZ.

Who is the main contact?
Prof. dr. Mark van der Gaag
m.vander.gaag@vu.nl

Contact information

Prof Mark van der Gaag
Scientific

Prinsegracht 63
The Hague
2512 EX
Netherlands

Phone +31 (0)645 780 463
Email m.vander.gaag@vu.nl

Study information

Study designRandomized 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 below to request a patient information sheet
Scientific titleThe effect of treatment of posttraumatic stress disorder in people with a lifetime psychotic disorder: a multi-site randomized controlled trial
Study acronymT-TIP
Study objectivesAre Eye Movement Desensitization and Reprocessing (EMDR) and Prolonged Exposure (PE) effective in treating posttraumatic stress disorder compared to waiting list in people with lifetime psychotic disorders?
Ethics approval(s)METiGG Ethics Comittee [Medisch-ethische Toetsingscommissie Instellingen Geestelijke Gezondheidszorg], 17/10/2011, ref: NL36649.097.11
Health condition(s) or problem(s) studiedPsychosis and post-traumatic stress disorder/ psychiatry and psychology
InterventionIn all three arms treatment as usual will be provided for the psychotic disorder for which the person sought help. In the experimental arms there will be a maximum of 8 sessions (over two months) of either prolonged exposure or EMDR with a trained CBT therapist aimed at reducing PTSD symptoms. Treatment duration is two months, patients will be followed-up at 6 months and 12 months.
Intervention typeOther
Primary outcome measure1. Clinician Administered PTSD Scale (CAPS) diagnosis and severity
2. PTSD Symptom Scale Self-Report (PSS-SR) severity
Secondary outcome measures1. Influence on psychosis (PANSS 8-item Remission Tool, GPTS and DRS in case of delusions, AHRS and AVH-BAS in case of auditory hallucinations)
2. Depression (BDI-II)
3. Social functioning (PSP)
4. Adverse events (TTIP Adverse Events Questionnaire)
5. Quality of life and cost-effectiveness (EQ5D, TIC-P)
Overall study start date01/11/2011
Completion date01/11/2013

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
SexBoth
Target number of participants240
Key inclusion criteria1. Lifetime psychotic disorder as assessed by MINI
2. PTSD as assessed by CAPS
3. Outpatient
4. Age 18 to 65 years
Key exclusion criteria1. IQ under 70
2. No competence of the Dutch language
3. Not willing or able to travel to treatment location
Date of first enrolment01/11/2011
Date of final enrolment01/11/2013

Locations

Countries of recruitment

  • Netherlands

Study participating centre

Prinsegracht 63
The Hague
2512 EX
Netherlands

Sponsor information

Stichting tot Steun VCVGZ (Netherlands)
Research organisation

c/o Dr Fam Meuwese
PO Box 9219
Arnhem
6800 HZ
Netherlands

Website http://www.stichtingtotsteunvcvgz.nl
ROR logo "ROR" https://ror.org/05yh1h167

Funders

Funder type

Research organisation

Foundation for Support VCVGZ [Stichting tot Steun VCVGZ] (Netherlands)

No information available

Results and Publications

Intention to publish date
Individual participant data (IPD) Intention to shareNo
IPD sharing plan summaryNot provided at time of registration
Publication and dissemination planNot provided at time of registration
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Protocol article protocol 23/05/2013 Yes No
Results article results 01/03/2015 Yes No
Results article results 01/05/2016 Yes No
Results article results 01/08/2016 Yes No
Results article results 06/09/2016 Yes No
Results article results 01/10/2016 Yes No
Results article results 01/10/2016 Yes No
Results article results 01/03/2018 Yes No
Results article results 21/01/2019 Yes No

Editorial Notes

19/02/2019: Publication references added.
28/07/2016: Publication reference added.