Who benefits from time-limited schema group therapy for outpatients with personality problems?

ISRCTN ISRCTN17262253
DOI https://doi.org/10.1186/ISRCTN17262253
Submission date
07/09/2017
Registration date
20/09/2017
Last edited
19/07/2024
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
Patients with personality disorders or long lasting Axis-I disorders (e.g. anxiety disorders, depression) often have specific ways of perceiving themselves and others. Events (in the past), temperament, biological make-up, environment of upbringing makes people who they are and how they respond. People develop pitfalls and in most cases patients with personality problems and long lasting Axis-I disorders suffer more than healthy people from their pitfalls. Most often these patients have had several treatments already, but still experience problems where they seek treatment for. Schema therapy is an evidence based psychotherapy which specifically aims at changing/reducing the pitfalls. In this therapy, patients become more aware of their pitfalls and how these interfere with their psychological wellbeing and functioning in daily life with other people. They learn to make more healthy choices and to understand more and act upon their healthy needs. As this therapy is given in a group format, patients learn from others and can practice with each other what they learn in the safety of a group setting with two schema therapists as group therapists guiding the group processes. The aim of this study is to investigate if Schema therapy can improve psychological symptoms in patients with personality problems.

Who can participate?
Adults aged 18-65 years who have personality problems and are treatable in an outpatient setting

What does the study involve?
This study reviews files of patients who have been participating in schema group therapy. Patients who participate in schema group therapy are indicated for this therapy because of longstanding psychological problems, mostly personality problems. In this therapy, patients become more aware of their pitfalls and how these interfere with their psychological wellbeing and functioning in daily life with other people. The researchers collect data about patients using their patient files to measure their duration of treatment, the amount of therapy time, whether they got more than five therapy sessions and the amount of patients who participating in the therapy who longer are in the therapy.

What are the possible benefits and risks of participating?
There are no benefits or risks with participating.

Where is the study run from?
G-kracht Mental Health Care Institute (Netherlands)

When is the study starting and how long is it expected to run for?
January 2015 to December 2021

Who is funding the study?
1. Investigator initiated and funded (Netherlands)
2. G-kracht Mental Health Care Institute (Netherlands)

Who is the main contact?
Mr M.F. van Vreeswijk

Contact information

Mr M. F. van Vreeswijk
Scientific

G-kracht Mental Health Care Institute
Noordeinde 27A
Delft
2611 KG
Netherlands

Study information

Study designThis study is a case-file study of patients with personality problems who have been treated with time-limited schema group therapy between 2007-2017 as an outpatient at a mental health care institute.
Primary study designObservational
Secondary study designCase series
Study setting(s)Other
Study typeTreatment
Participant information sheet No participant information sheet available
Scientific titlePredictors, mediators and moderators of outcome of time-limited schema group therapy for outpatients with personality disorders: An open-label trial
Study objectives1. Schemas and modes as measured at pre-treatment predict therapy outcome in time-limited schema group therapy
2. Changes in schemas and modes co-occur with changes in psychological problems
Ethics approval(s)As this is an open-label trial in which only the files were checked of 137 patients who have had schema group therapy and who did not have to do any additional work for the study (so no additional questionnaires or interviews had to be filled in by the patients) according to the Medical Ethical Committee no formal request had to be made. Everything is according to the Helsinki agreement/WHO guidelines which allow research based on patients files solely. A request to the ethics board has not been done based on the Dutch law (WMO) with regard to retrospective patient file studies. The WMO incorporates WHO and Helsinki regulations and can be found via http://www.ccmo.nl/en/your-research-does-it-fall-under-the-wmo.
Health condition(s) or problem(s) studiedPersonality disorders
InterventionPatients who are in treatment at G-kracht Mental Health Care Institute and who are taking part of Schema group therapy (ST-g) for their personality problems as a part of their standard treatment package do have to fill in the BSI, YSQ, SMI as a standard evaluation measure at the beginning of the ST-g, in the middle of the ST-g and before the final ST-g session (the last follow up session). The outcome of this Routine Outcome Monitoring (ROM) is used in individual evaluation sessions with the patients as discussion material on the amount of change and whether or not more therapy is necessary. The ROM data is part of the Electronic Patient File (EPF) as it is standard part of the treatment. ST-g’s take around 10 months including the follow ups.

A research assistant collects all the data (SES, duration of treatment before ST-g, the amount of therapy time before ST-g, during ST-g and whether or not a patient got more than 5 therapy sessions after ST-g, BSI, YSQ, SMI; which were collected based on a preset of data which had to be included in the study) of the patients who had participated in ST-g during 2007-2017 and who are no longer in ST-g. The data collected was anonymized before it was entered in SPSS.
Intervention typeBehavioural
Primary outcome measure1. Psychological symptoms are measured using the Brief Symptom Inventory (BSI) at baseline, in the middle of ST-g and two months after the last therapy session but before the last follow up session.
2. Schemas are measured using the Young Schema Questionnaire (YSQ) at baseline, in the middle of ST-g and two months after the last therapy session but before the last follow up session.
3. Modes are measured using the Schema Mode Inventory (SMI) at baseline, in the middle of ST-g and two months after the last therapy session but before the last follow up session.

NOTE: as some ST-g as there was a differentiation in amount of sessions of the ST-g’s the wording “in the middle” is used instead of 10, 12 weeks.
Secondary outcome measures1. Socio Economic Status is measured using the records in the patient files at baseline
2. Total amount of treatment before and after the time-limited ST-g is measured using the records in the patient files at the end of this study
Overall study start date01/01/2015
Completion date31/12/2021

Eligibility

Participant type(s)Patient
Age groupAdult
Lower age limit18 Years
Upper age limit65 Years
SexBoth
Target number of participants280 patients
Total final enrolment253
Key inclusion criteria1. Male/ female
2. Aged between 18-65
3. Personality problems
4. Treatable as an outpatient at a mental health care institute
Key exclusion criteria1. Patients whose Axis-I diagnosis has not been treated yet by the more appropriate therapy forms for the particular Axis-I disorder
2. Patients who need constantly to be in a crisis unit
3. Patients with severe drug abuse
4. Patients whose psychological problems will interfere with group therapy processes (e.g. moderate-severe narcissism, moderate-severe autism, moderate-severe anti-social personality problems)
Date of first enrolment03/02/2015
Date of final enrolment30/07/2017

Locations

Countries of recruitment

  • Netherlands

Study participating centre

G-kracht Mental Health Care Institute
Delft
2611 KG
Netherlands

Sponsor information

G-kracht Mental Health Care Institute
Hospital/treatment centre

Noordeinde 27A
Delft
2611 KG
Netherlands

Funders

Funder type

Other

Investigator initiated and funded

No information available

G-kracht Mental Health Care Institute

No information available

Results and Publications

Intention to publish date31/12/2024
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination planPlanned publication in a high-impact peer reviewed journal.
IPD sharing planThe datasets generated during and/or analysed during the current study are/will be available upon request from M. F. van Vreeswijk (mf.vanvreeswijk@g-kracht.com).

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article 17/07/2024 19/07/2024 Yes No

Editorial Notes

19/07/2024: Publication reference added.
15/02/2023: The intention to publish date has been changed from 31/08/2022 to 31/12/2024.
17/01/2022: Total final enrolment added.
04/11/2021: The following changes have been made:
1. The overall trial end date has been changed from 31/12/2019 to 31/12/2021 and the plain English summary has been updated to reflect this change.
2. The target number of participants and total target enrolment have been changed from 150 to 280.
05/02/2021: The intention to publish date has been changed from 01/08/2020 to 31/08/2022.
02/05/2019: The intention to publish date was changed from 30/11/2018 to 01/08/2020.