Dialectical Behavior Therapy vs Enhanced Usual Care for Suicidal and Self-harming Adolescents. 10 Year Follow-up

Study Overview
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Brief Summary
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The purpose of the study is to evaluate the long-term efficacy of dialectical behavior therapy (DBT) in treatment of adolescents with deliberate self harm compared to enhanced usual care (EUC). This study follows-up 77 patients in the ages of 12-18 yrs who have been included in an RCT of DBT-A vs EUC. The main inclusion criterion for this study was repetitive self-harm behaviour. The patients were randomly allocated to receive 16 weeks of outpatient DBT or EUC in child and adolescent psychiatric clinics in Oslo. Participants have been assessed so far on six different time-points: baseline (before starting treatment), 9 weeks, 15 weeks, 19 weeks, 71 weeks and 3 years after start of the treatment. In the current project patients will be assessed a 7th time 10 years after treatment completion. It is hypothesized that compared with participants who had received EUC in the original trial during their adolescence participants who had received DBT-A will: A) report a significantly lower frequency of episodes of self-harm, both last year and over the extended 10-year follow-up interval. B) be significantly less impaired with respect to social, family and occupational functioning and report a higher quality of life. C) have retained significantly fewer diagnostic criteria of BPD and have less severe borderline features according to dimensional measures and have significantly fewer signs of emotion dysregulation.

Detailed Description
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Suicide attempts and non-suicidal self-harm, highly prevalent in adolescents, are behaviours strongly associated with severe emotion dysregulation, mental health problems and increased suicide risk. The original study, on which the present study is building, used a randomized controlled design, with a stratified block randomization procedure, and blinded pre-treatment, post-treatment and follow-up evaluations comparing 19weeks of DBT-A with EUC of equal length. Of special interest to this follow-up study is to gain more knowledge on their capacity to regulate emotions, since failures in emotion regulation is an underlying mechanism of repetitive self-harm behaviours and several other difficulties, and since a main aim of DBT-A is to enhance adolescents capacity to use healthy emotion regulation strategies. The study is designed to carefully include user and family perspectives on the definition of specific outcomes and how to measure them, we will collect detailed data on important outcomes employing a combination of quantitative and qualitative methods, innovative approaches such as ecological momentary assessment and register data. Adding new data to the existing rich data will give us a basis to study the dynamic interplay between symptoms, emotions, and functional and dysfunctional behaviours and make new discoveries of mechanisms of therapeutic change, knowledge to further increase treatment response rates and individualize treatments and to inform further development of this treatment and its implementation in Norway and other countries. The proposed study will investigate: the 10-year post-randomization treatment outcomes of DBT-A compared with EUC with respect to: a) frequency of subsequent episodes of self-harm, b) severity of suicidal ideation, c) level of depressive symptoms and d) frequency of subsequent emergency room visits, hospitalizations and use of additional treatments due to risk of self-harm behaviour. the 10-year post-randomization clinical course and stability of a diagnosis of BPD, its diagnostic criteria and borderline symptoms. participants' adult mental health, social, family and occupational functioning and quality of life. participants' adult strategies for and capacity to cope with stressful life-events and situations in their daily lives and effectively regulate emotions. the association between participants' adult life use of skills and functional coping strategies and self-harm behaviour and other problem behaviours, and whether any substitution from onedysfunctional coping behaviour to another has occurred. participants' evaluation of what components of the treatment was most helpful and led to the strongest and most persistent change in important functions and aspects of life. the economic cost of treatments consumed and functional impairment and occupational disability over the 10-year post-randomization period and the long-term cost-effectiveness of DBT-A.

Official Title
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Dialectical Behavior Therapy vs Enhanced Usual Care for Suicidal and Self-harming Adolescents. Outcomes in Adult Life 10 Years Posttreatment

Conditions
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Self-Harm, Deliberate, Borderline Personality Disorder

Intervention / Treatment
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* Behavioral: Dialectical Behaviour Therapy for Adolescents (DBT-A)
* Behavioral: Enhanced usual care


Participation Criteria
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Eligibility Criteria
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The inclusion criteria for the initial study were: History of repeated self-harm (last episode within last 4 months) and Age between 12 and 18 years and Satisfied at least 2 criteria of DSM-IV Borderline Personality Disorder (BPD) (as measured by the SCIDII) (in addition to the self-destructive criterion) - alternatively at least 1 criterion of DSM-IV BPD plus at least 2 threshold level criteria and Written informed consent from patient and parent(s) to participate in the study and Patient fluently Norwegian speaking Exclusion Criteria: Psychotic disorders or Anorexia nervosa or Severe substance dependence disorders or Mental retardation (IQ less than 70) or Asperger syndrome/autism -

Ages Eligible for Study
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Minimum Age: 22 Years
Maximum Age: 30 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Dialectical Behaviour Therapy<br>Dialectical Behavior Therapy, delivered for 19 weeks, consisted of 1 weekly session of individual therapy (60 minutes), 1 weekly session of multifamily skills training (120 minutes), and family therapy sessions and Telephone coaching with individual therapists outside therapy sessions as needed. | Behavioral: Dialectical Behaviour Therapy for Adolescents (DBT-A)<br>* 16 weeks of Dialectical behavior therapy with one weekly session of individual therapy, one weekly session of multifamily skills training group, telephone coaching and ancillary family therapy and/or pharmacological treatment as needed. The treatment has been developed by Marsha Linehan (Linehan, 1993a; 1993b)and adapted for adolescents by Alec Miller (Miller, Rathus & Linehan, 2007). Individual DBT therapists have been trained by drs Alec L Miller and Sarah K Reynolds and have a minimum of one year clinical practise as DBT therapists. The therapists are organised in two consultation teams supervised on a bimonthly basis throughout the entire study by drs Miller and Reynolds respectively.<br>|
| Active Comparator: Enhanced Usual Care<br>Enhanced usual care was 19 weeks of standard care (enhanced for the purpose of the study by requiring that EUC therapists agree to provide on average no less than 1 weekly treatment session per patient throughout the trial) delivered by therapists (4 psychiatrists, 16 clinical psychologists, 6 clinical social workers, 2 clinical pedagogues, 1 specialist nurse, and 1 psychology graduate student) not trained in or practicing DBT. | Behavioral: Enhanced usual care<br>* 16 weeks of outpatient treatment in child and adolescent psychiatric clinics in Oslo, on average one weekly session of individual therapy and ancillary supportive family and/or pharmacological treatment as needed.<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Frequency of subsequent episodes of self-harm | Measured by the Linehan Parasuicide Count (LPC) | 10 years | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Severity of suicidal ideation | Measured by the Suicidal Ideation Questionnaire Jr (SIQ-Jr). Scale range: min= 0, max = 90. High values represent a worse outcome. | 10 years | 
| Self-reported evel of depressive symptoms | Measured by the Moods and feelings questionnaire (MFQ). Scale range: min = 0, max = 26. High levels represent a worse outcome | 10 years | 
| Researcher rated level of depressive symptoms | Measured by the Montgomery Asberg Depression Rating Scale (MADRS). Scale range: min=0, max=60. High levels represent a worse outcome | 10 years | 
| Frequency of subsequent emergency room visits, hospitalizations and use of additional treatments due to risk of self-harm behaviour | Measured through and interview specifically developed for the purpose and through linkage with the Norwegian Patient Register | 10 years | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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self harm, dialectical behaviour therapy, borderline personality disorder, emotional dysregulation