Contact information
Type
Scientific
Primary contact
Dr S Castelein
ORCID ID
Contact details
University Medical Center Groningen
Department of Psychiatry
RGOc
Room 5.29
P.O. Box 30001
Groningen
9700 RB
Netherlands
+31 (0)50 3612074
s.castelein@psy.umcg.nl
Additional identifiers
EudraCT number
ClinicalTrials.gov number
Protocol/serial number
N/A
Study information
Scientific title
Acronym
Study hypothesis
Participation in support groups leads to an improvement in quality of life, social support, social network, self-efficacy and self-esteem.
Ethics approval
Medisch Ethische Toetsingscommissie of the University Medical Center Groningen, Groningen, The Netherlands, approval received on May 2, 2003 (reference number: METC 2003/053).
Study design
Randomised controlled, parallel armed trial
Primary study design
Interventional
Secondary study design
Randomised controlled trial
Trial setting
Not specified
Trial type
Treatment
Patient information sheet
Condition
Schizophrenia, Psychosis
Intervention
Meetings with approximately ten patients, were held every two weeks with minimal professional guidance. Topics of discussion were put forward by the participants. All procedures were protocolised.
Intervention type
Other
Phase
Not Specified
Drug names
Primary outcome measure
Quality of Life: World Health Organisation (WHO) Quality of Life brief
Secondary outcome measures
1. Social support
2. Social network
3. Self-efficacy
4. Self-esteem
5. Psychopathology
Overall trial start date
01/02/2003
Overall trial end date
01/12/2007
Reason abandoned (if study stopped)
Eligibility
Participant inclusion criteria
1. Suffered from one or more psychotic episodes
2. Outpatient
3. 18 years or older
Participant type
Patient
Age group
Not Specified
Gender
Not Specified
Target number of participants
106
Participant exclusion criteria
1. Drug- or alcohol misuse
2. Suffering from psychotic symptoms that influence the group process
Recruitment start date
01/02/2003
Recruitment end date
01/12/2007
Locations
Countries of recruitment
Netherlands
Trial participating centre
University Medical Center Groningen
Groningen
9700 RB
Netherlands
Sponsor information
Organisation
University Medical Center Groningen (UMCG) (The Netherlands)
Sponsor details
Rob Giel Research Center (RGOc)
P.O. Box 30001
Groningen
9700 RB
Netherlands
+31 (0)50 3612074
rgoc@med.umcg.nl
Sponsor type
Hospital/treatment centre
Website
Funders
Funder type
Research organisation
Funder name
The Netherlands Organization for Health Research and Development (ZonMw) (Netherlands)
Alternative name(s)
Funding Body Type
Funding Body Subtype
Location
Results and Publications
Publication and dissemination plan
Not provided at time of registration
Intention to publish date
Participant level data
Not provided at time of registration
Basic results (scientific)
Publication list
1. S. Castelein, R. Bruggeman, J.T. van Busschbach, M. van der Gaag, P.J. Mulder, H. Knegtering en D. Wiersma. The effectiveness of support groups for people suffering from psychosis: a multi-center randomized controlled trial. Schizophrenia Bulletin. 2005, vol. 31, number 2, 521
2. 2010 results in http://www.ncbi.nlm.nih.gov/pubmed/20456786 [in Dutch]
3. 2011 results in http://www.ncbi.nlm.nih.gov/pubmed/19308728
Publication citations
-
Results
Stant AD, Castelein S, Bruggeman R, van Busschbach JT, van der Gaag M, Knegtering H, Wiersma D, Economic aspects of peer support groups for psychosis., Community Ment Health J, 2011, 47, 1, 99-105, doi: 10.1007/s10597-009-9193-8.