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The goal of this clinical trial is to learn if Acceptance and Commitment Therapy (ACT) + Exposure and Response Prevention (ERP) in Group is effective to Obsessive Compulsive Disorder (OCD) in adults.
Researchers will compare intervention to control group to see if those who attend the group therapy have better results than control group.
Participants will go through a 16-week group therapy based on a protocol designed by Michael Twohig (Twohig et al, 2018).
The goal of this clinical trial is to learn if Acceptance and Commitment Therapy (ACT) + Exposure and Response Prevention (ERP) in Group is effective to Obsessive Compulsive Disorder (OCD) in adults. The main questions it aims to answer are:
Researchers will compare intervention (n=16) to control group (n=8) to see if those who attend the group therapy have better results than control group.
We will perform an unequal randomization in a 2:1 ratio, in blocks of 6, for allocation to each group. The assessor of the outcomes of interest will be blinded to the group to which the participant was assigned
Participants will go through a 16-week group therapy based on a protocol designed by Michael Twohig (Twohig et al, 2018).
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Group psychotherapy with ACT | Experimental | 16 sessions of group psychotherapy based on ACT + exposure with response prevention (EPR) |
|
| Treatment as usual | No Intervention | Patients will follow their usual treatment, without adding ACT-based group psychotherapy |
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Group acceptance and commitment therapy (ACT) | Other | Group psychotherapy based on ACT + EPR |
|
| Measure | Description | Time Frame |
|---|---|---|
| Yale-Brown Obsessive-Compulsive Scale (YBOCS) | Measure for assessing the presence and severity of obsessive-compulsive disorder (OCD) symptoms. | 10 months (4-month intervention + 6-month follow-up) |
| Measure | Description | Time Frame |
|---|---|---|
| Acceptance and Commitment Therapy Processes (CompACT) | Measure of psychological flexibility | 10 months (4-month intervention + 6-month follow-up) |
| Quality of Life Enjoyment and Satisfaction Questionnaire (Q-LES-SV) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Gabriela M Ferreira, MD, PhD | Universidade Federal do Paraná | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Universidade Federal Do Paraná | Curitiba | Paraná | 80060-900 | Brazil |
| PubMed Identifier | Type | Citation | Retractions |
|---|---|---|---|
| 29966992 | Background | Twohig MP, Abramowitz JS, Smith BM, Fabricant LE, Jacoby RJ, Morrison KL, Bluett EJ, Reuman L, Blakey SM, Ledermann T. Adding acceptance and commitment therapy to exposure and response prevention for obsessive-compulsive disorder: A randomized controlled trial. Behav Res Ther. 2018 Sep;108:1-9. doi: 10.1016/j.brat.2018.06.005. Epub 2018 Jun 22. |
| Label | URL |
|---|---|
| ACT+ERP for OCD: This is a 16-session twice-weekly therapist manual for OCD describing ERP conducted from an ACT framework. | View source |
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| ID | Term |
|---|---|
| D009771 | Obsessive-Compulsive Disorder |
| ID | Term |
|---|---|
| D001008 | Anxiety Disorders |
| D001523 | Mental Disorders |
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| ID | Term |
|---|---|
| D011615 | Psychotherapy, Group |
| D064869 | Acceptance and Commitment Therapy |
| D011613 | Psychotherapy |
| ID | Term |
|---|---|
| D012960 | Socioenvironmental Therapy |
| D004191 | Behavioral Disciplines and Activities |
| D015928 | Cognitive Behavioral Therapy |
| D001521 | Behavior Therapy |
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Randomized controlled trial
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Only the team member who will apply the questionnaires/scales will be masked.
Measures of the degree of enjoyment and satisfaction experienced by subjects in various areas of dally functioning
| 10 months (4-month intervention + 6-month follow-up) |
| Depression Anxiety and Stress Scale (DASS) | Set of self-report scales designed to measure the emotional states of depression, anxiety and stress. | 10 months (4-month intervention + 6-month follow-up) |
| AAQ for Obsessions and Compulsions (AAQ-OC) | Self-report measure of experiential avoidance in response to unwanted intrusive thoughts. | 10 months (4-month intervention + 6-month follow-up) |
| Affective Style Questionnaire (ASQ) | Brief instrument to measure individual differences in emotion regulation | 10 months (4-month intervention + 6-month follow-up) |
| Clinical Global Impressions (CGI) Scale, | Quantify and track patient progress and treatment response over time. | 10 months (4-month intervention + 6-month follow-up) |