Mindfulness-Based Cognitive Therapy in a Clinical Sample of OCD Patients
A Pilot Randomized Trial Testing Mindfulness-Based Cognitive Therapy in a Clinical Sample of OCD Patients
Study Overview
Status
Status
Conditions
Conditions
Intervention / Treatment
Intervention / Treatment
Study Type
Study Type
Enrollment (Actual)
Enrollment
Phase
Phase
- Not Applicable
Contacts and Locations
Study Locations
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Ontario
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Toronto, Ontario, Canada, M4N 3M5
- The Frederick W. Thompson Anxiety Disorders Centre, Sunnybrook Health Sciences Centre
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Participation Criteria
Eligibility Criteria
Eligibility Criteria
Ages Eligible for Study
- Child
- Adult
- Older Adult
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Referred for treatment services at the Frederick W. Thompson Anxiety Disorder Centre at Sunnybrook Health Sciences Centre
- Primary Diagnosis of OCD
- Ability to communicate in written and spoken English
Exclusion Criteria:
- Those with active substance abuse/dependence within 3 months
- Suspected organic pathology
- Recent suicide attempt/active suicidality
- Current self-injurious behaviour
- Active bipolar or psychotic disorder
- Previous completion of an MBCT course (≥ 8 weeks)
- Previous completion of an OCD-specific course of CBT (≥ 8 weeks)
- Previous completion of a general course of CBT (≥ 8 weeks) in the past 3 years
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Treatment
- Allocation: Randomized
- Interventional Model: Factorial Assignment
- Masking: Single
Number of Arms
Arms and Interventions
Participant Group / ArmParticipant Group / Arm |
Intervention / TreatmentIntervention / Treatment |
|---|---|
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Experimental: Mindfulness-Based Cognitive Therapy (MBCT)
MBCT will be delivered in ten 2.5 hour group sessions with 15 participants per group.
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MBCT teaches patients to become more aware of, and to relate differently to, their thoughts, feelings, and bodily sensations.
Through MBCT, patients will learn skills that allow them to disengage from habitual ("automatic") dysfunctional cognitive routines, such as obsessional thinking.
As an example, patients are encouraged to relate to thoughts and feelings as passing events in the mind, rather than to identify with them or treat them as accurate representations of reality.
The MBCT protocol for OCD patients is adapted from Segal et al.'s original MBCT manual for depression (Segal, Williams & Teasdale, 2002).
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No Intervention: Waitlist
Wait list as per usual.
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What is the study measuring?
Primary Outcome Measures
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Change in Symptom Severity from Baseline in OCD Measures
Time Frame: 10 weeks
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OCD measures will include: a self-report version of the Yale-Brown Obsessive Compulsive Scale (YBOCS-SR), the Obsessive Compulsive Inventory -Revised (OCI-R), consisting of six subscales (Washing, Checking, Ordering, Obsessing, Hoarding and Neutralising), and the Obsessive Beliefs Questionnaire-44 (OBQ-44), a measure of three OCD-related belief domains (Perfectionism/Certainty, Importance/Control of thoughts, and Responsibility/Threat estimation)
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10 weeks
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Secondary Outcome Measures
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
|---|---|---|
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Change in Level of Impairment from Baseline
Time Frame: 10 weeks
|
The Sheehan Disability Scale will be used to measure level of functional impairment in three inter-related domains (work/school, social and family life).
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10 weeks
|
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Change in Mood from Baseline
Time Frame: 10 weeks
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The Beck Depression Inventory -II (BDI-II), will be used to assess depression severity.
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10 weeks
|
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Change in Mindfulness from Baseline
Time Frame: 10 weeks
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Mindfulness measures include: The Five Facet Mindfulness Questionnaire (FFMQ), used to measure the five constructs central to mindfulness (Observing, Describing, Acting with Awareness, Non-judgment of Inner Experience, and Non-reactivity to Inner Experience), and the the Self-Compassion Scale-Short Form (SCS-SF) measuring 6 components of self-compassion (Self-Kindness, Self-Judgment, Common Humanity, Isolation, Mindfulness & Over-Identification).
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10 weeks
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Retention of Gains at Follow-up
Time Frame: 16 weeks
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All self-report measures will be re-administered at 6-week follow-up to measure robustness of gains post-treatment.
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16 weeks
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Collaborators and Investigators
Sponsor
Sponsor
Study record dates
Study Major Dates
Study Start
Study Start
Primary Completion (Actual)
Primary Completion
Study Completion (Actual)
Study Completion
Study Registration Dates
First Submitted
First Submitted
First Submitted That Met QC Criteria
First Submitted That Met QC Criteria
First Posted (Estimate)
First Posted
Study Record Updates
Last Update Posted (Actual)
Last Update Posted
Last Update Submitted That Met QC Criteria
Last Update Submitted That Met QC Criteria
Last Verified
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
Other Study ID Numbers
Other Study ID Numbers
- 138-2014
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