A comparison to two types of group behaviour therapy for obsessive compulsive disorder: A pilot randomised controlled trial of behaviour therapy and mindfulness-based behaviour therapy for OCD
ISRCTN | ISRCTN52684820 |
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DOI | https://doi.org/10.1186/ISRCTN52684820 |
Secondary identifying numbers | 15996 |
- Submission date
- 30/01/2014
- Registration date
- 30/01/2014
- Last edited
- 11/01/2019
- 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
Not provided at time of registration
Contact information
Dr Clara Strauss
Scientific
Scientific
Psychology Department
Guildford
GU2 7XH
United Kingdom
C.Strauss@surrey.ac.uk |
Study information
Study design | Randomised; Interventional; Design type: Treatment |
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Primary study design | Interventional |
Secondary study design | Randomised controlled trial |
Study setting(s) | Hospital |
Study type | Treatment |
Participant information sheet | Not available in web format, please use the contact details below to request a patient information sheet |
Scientific title | A comparison to two types of group behaviour therapy for obsessive compulsive disorder: A pilot randomised controlled trial of behaviour therapy and mindfulness-based behaviour therapy for OCD |
Study acronym | Mindfulness-based behaviour therapy for OCD: a pilot RCT |
Study objectives | Obsessive compulsive disorder (OCD) affects up to one million adults in the UK (NICE, 2005). People diagnosed with OCD experience unwanted obsessive thoughts and engage in compulsive behaviours. Exposure and response prevention (ERP) is a behaviour therapy and it is the psychological therapy with the strongest evidence for effectiveness. However, only 60% of people benefit from ERP. Many people do not find ERP acceptable, with about 25% of people starting ERP dropping out. Mindfulness-based interventions (MBIs) teach people to notice unpleasant thoughts and feelings without reacting unhelpfully. Although effective for depression, psychosis and a range of anxiety disorders, there is very little research on the effectiveness of MBIs for OCD, although the research that is published shows promise. We conducted a focus group with six people diagnosed with OCD and who had experience of ERP and MBI. We had intended to compare MBI to ERP, however participants advised us to combine ERP with MBI. They suggested that effectiveness might be based by combining the two together. We have followed their advice in this study. We intend to compare standard ERP group behaviour therapy (BT) to mindfulness-based ERP group behaviour therapy (MBBT) to see if mindfulness practice improves ERP outcomes and reduces drop-out. Before we can answer this question in a fully-sized trial we first need to conduct a pilot study. This pilot study is a small version of the fully-sized trial. It will tell us: (a) the approximate difference in outcome between BT and MBBT, (b) how easily we can recruit to the study, and (c) how many people drop out. This information will allow us to know how many participants we need for the full trial, how long recruitment will take and how to reduce drop-out rates. Once we have this information we will apply for funding for the full trial. |
Ethics approval(s) | 13/LO/1768 |
Health condition(s) or problem(s) studied | Topic: Mental Health Research Network; Subtopic: Personality disorder; Disease: Personality disorders |
Intervention | Behaviour Therapy: A 10 session exposure and response prevention for OCD group intervention (maximum 10 participants per group). Each session will run for two hours. Mindfulness Behaviour Therapy: A 10 session mindfulness-enhanced exposure and response prevention for OCD group intervention (maximum 10 participants per group). Each session will run for two hours. Mindfulness practice and discussion will be added to the standard ERP protocol. Follow Up Length: 6 month(s); Study Entry : Registration only |
Intervention type | Behavioural |
Primary outcome measure | Yale-Brown Obsessive Compulsive Scale - Second Edition (Y-BOCS-II; Goodman et al, 2006).; Timepoint(s): Baseline, post-therapy (10 weeks post-baseline) and 6-months post-therapy |
Secondary outcome measures | 1. Beck Depression Inventory - second edition (BDI-II; Beck et al, 1996) 2. Change Interview (Elliott et al, 2001).; Timepoint(s): Post-therapy only 3. Five-Facet Mindfulness Questionnaire - Short Form (FFMQ-SF; Bohlmeijer et al, 2011) 4. Mini Neuropsychiatric Interview 6.0.0; Timepoint(s): Baseline, post-intervention and six months post-therapy 5. Obsessional Beliefs Questionnaire - Revised - OBQ-44; Timepoint(s): Baseline, post-therapy and six months post-therapy 6. Short Warwick-Edinburgh Mental Well-Being Scale (2007); Timepoint(s): Baseline, post-therapy and 6-months post-therapy 7. Therapy attrition; Timepoint(s): Percentage of participants who complete their intervention will be recorded as a primary outcome |
Overall study start date | 01/02/2014 |
Completion date | 31/12/2014 |
Eligibility
Participant type(s) | Patient |
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Age group | Adult |
Lower age limit | 18 Years |
Sex | Both |
Target number of participants | Planned Sample Size: 40; UK Sample Size: 40 |
Key inclusion criteria | 1. Meet diagnostic criteria for OCD (MINI 6.0.0 interview) 2. Have been stable on psychiatric medication for at least three months prior to the consent meeting, or not taking psychiatric medication for at least three months prior to the consent meeting 3. Have no plans for changes to psychiatric medication during the course of the study 4. Have not received psychological therapy in the past three months or to have any plans for psychological therapy during the course of the study 5. Be aged over 18 years of age |
Key exclusion criteria | Exclusion criteria will be that participants will not have an identified organic cause for their OCD symptoms or a diagnosed learning disability. This will be ascertained through the care team. People will be excluded if they meet diagnostic criteria, based on the MINI interview, for; post-traumatic stress disorder, anorexia nervosa, an autistic spectrum disorder or a psychotic disorder. To reflect the reality of mental health services and the co-morbidity of OCD with other anxiety disorders and with depressive disorders (NICE, 2005), co-morbidity with these conditions will not be an exclusion criterion. The exception to this is that people meeting diagnostic criteria for PTSD will be excluded given some concerns in the MBI literature about the offering MBIs to this population. People presenting with hoarding only compulsions will be excluded from the study, given the recent move to classify hoarding as a distinct condition from OCD (Pertusa et al, 2008). |
Date of first enrolment | 01/02/2014 |
Date of final enrolment | 31/12/2014 |
Locations
Countries of recruitment
- England
- United Kingdom
Study participating centre
University of Surrey
Guildford
GU2 7XH
United Kingdom
GU2 7XH
United Kingdom
Sponsor information
Sussex Partnership NHS Foundation Trust (UK)
Hospital/treatment centre
Hospital/treatment centre
Sussex Education Centre
Nevill View Hospital
Hove
BN3 7HZ
England
United Kingdom
https://ror.org/05fmrjg27 |
Funders
Funder type
Government
National Institute for Health Research: Research for Patient Benefit (RfPB)
Government organisation / National government
Government organisation / National government
- Alternative name(s)
- National Institute for Health Research, NIHR Research, NIHRresearch, NIHR - National Institute for Health Research, NIHR (The National Institute for Health and Care Research), NIHR
- Location
- United Kingdom
Results and Publications
Intention to publish date | |
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Individual participant data (IPD) Intention to share | No |
IPD sharing plan summary | Not provided at time of registration |
Publication and dissemination plan | Not provided at time of registration |
IPD sharing plan |
Study outputs
Output type | Details | Date created | Date added | Peer reviewed? | Patient-facing? |
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Protocol article | protocol | 16/04/2015 | Yes | No | |
Results article | results | 01/06/2018 | Yes | No | |
HRA research summary | 28/06/2023 | No | No |
Editorial Notes
11/01/2019: Publication reference added.