Evaluation of a grouptraining for adolescents (Emotion Regulation Training) with emotion regulation problems - a randomised controlled clinical trial

INTERVENTION: ERT consists of 17 weekly group sessions (6‐9 participants, 1,75 hours), one psycho‐educational session with parents/caretakers and/or partners and two booster sessions, at three and six months after the weekly course. The first aim is to learn how to deal with daily stress and psychological vulnerability. Reducing self‐harm or harm to others is an important issue. After the training there will be a session with the adolescent, his or her parents or caretakers, the therapists of the training and the individual therapist, to offer good continuation in the regular treatment. CONDITION: ; Borderline personality disorder , Adolescents, Emotion regulation training ; ; PRIMARY OUTCOME: Primary outcome measures at baseline, directly after the training and at 6 months follow‐up: ; 1. Severity of Borderline Personality symptoms (BPDSI‐IV‐adolescents, semi‐structured interview) measuring the current severity and frequency of the DSM‐IV BPD manifestations; ; 2. Life Problems Inventory (LPI, questionnaire), measuring the main symptoms of BPD.; SECONDARY OUTCOME: Secondary outcome measures at baseline, directly after the training and at 6 months follow‐up: ; 1. DSM diagnosis axis II (PDQ‐4, parts of k‐SADS and SCID‐II); ; 2. mental health disorders (CDI, RAPI, SCL‐90, SDQ); 3. Locus of Control (MALC‐ERT); ; 4. Quality of Life (YQOL); ; 5. Raising style, parental stress and parental functioning (EMBU, PSI and GHQ); ; 6. Consumption of public health services; 7. global functioning (CGAS or GAF score). ; INCLUSION CRITERIA: 1. Age 14‐18 years; 2. Affective instability due to a marked reactivity of mood (e.g., intense episodic dysphoria, irritability, or anxiety usually lasting a few hours and only rarely more than a few days; 3. At least two other DSM‐IV criteria of BPD; 4. Minimum score of 15 on the Borderline Personality Disorder Severity Index ‐ adolescent version.