Excoriation of Skin
Conditions
Brief summary
This study aims to evaluate the effectiveness of psychodrama group therapy (PGT) compared with supportive group therapy (SGT) for excoriation disorder (ED). Patients will be randomly allocated for either PGT or SGT. The Skin Picking Scale Revised (SPS-R) will be the primary outcome and emotional regulation measured by the Difficulties in Emotion Regulation Scale (DERS) will be evaluated as a potential intermediator. The Clinical Global Impression Scale (CGI); Beck Depression Scale (BDI); Beck Anxiety Scale (BAI), and the Social Adjustment Scale (EAS) will assess secondary outcomes.
Detailed description
Excoriation disorder (ED) is a diagnostic characterized by recurrent picking at one´s own skin, resulting in skin lesions, despite repeated attempts to stop the behavior that causes clinically significant distress or impairment in important areas of functioning. The skin picking behavior is better accounted by physiological effects of a substance or better explained by symptoms of another mental disorder. Objective: This study aims to evaluate the effectiveness of psychodrama group therapy (PGT) compared with supportive group therapy (SGT). Justification: The scientific studies on treatment for ED are scarce and all associated with behavioral therapy methods, which do not adequately consider underlying factors of ED, such as emotional dysregulation. There are also not reports of group treatment for ED. Method: patients who meet criteria for ED according to DSM-5 will be selected . Patients in need of treatment for psychiatric comorbidities (such as anxiety and depression) will wait at least 4 weeks until pharmacological prescription is stable. The subjects will be randomly allocated to either PGT or SGT. The Skin Picking Scale Revised (SPS-R) will be the primary outcome and emotional regulation measured by the Difficulties in Emotion Regulation Scale (DERS) will be evaluated as a potential intermediator. The Clinical Global Impression Scale (CGI); Beck Depression Scale (BDI); Beck Anxiety Scale (BAI), and the Social Adjustment Scale (EAS) will assess secondary outcomes. Hypotheses: 1. The PGT is more effective than SGT for the ED patient regarding the reduction of skin excoriation behavior. 2. PGT is more effective than SGT for the ED patient regarding the improvement of the symptoms of anxiety, depression and trichotillomania (when present). 3. The therapeutic effects of PGT is intermediated by emotional regulation.
Interventions
BEHAVIORALPsychodrama Group Therapy (PGT)
The psychotherapeutic focus is on the here and now aspect of the patient's relationships. Conflicts are acted out during the sessions, yielding intense emotional re-experience in a safe environment, which will bring further cognitive understanding of past distressful life experiences and hopefully new adaptive ways of expressing and dealing with the problem.
BEHAVIORALSupportive Group Therapy (SGT)
SGT is a form of treatment in which the therapist maintains a therapeutic relationship and a working alliance based on reality, support, clarification, assistance in troubleshooting, strong leadership, partial gratification of dependency needs, legitimating independence, development of pleasurable activities and adequate rest, guidance and advice to deal with current problems. This approach uses techniques to help patients feel safe, accepted, protected, encouraged and not anxious.
Sponsors
University of Sao Paulo
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Skin Picking diagnosis
Exclusion criteria
* Illiteracy * Other acute psychiatric diagnosis in need of inpatient treatment * Mental retardation * Prader-Willi syndrome or other medical condition causing recurrent excoriation behavior or intense itching
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Skin Picking Scale Change | Baseline, week 5, week 10, week 15 | Self-report questionnaire |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Difficulties in Emotion Regulation Scale Change | Baseline, week 5, week 10, week 15. | Self-report questionnaire |
Other
| Measure | Time frame | Description |
|---|---|---|
| The Clinical Global Impression Scale Change | Baseline, week 15 (end of treatment.). | semi structured interview with psychiatrist |
| Beck Depression Scale Change | Baseline, week 15 (end of treatment.). | Self-report questionnaire |
| Beck Anxiety Scale Change | Baseline, week 15 (end of treatment.). | Self-report questionnaire |
| Social Adjustment Scale Change | Baseline, week 15 (end of treatment.). | Self-report questionnaire |
Countries
Brazil
Outcome results
None listed