The goal of this clinical trial is to investigate if generalist treatment (GIT-PD) is non-inferior in improving level op personality functioning compared to specialist treatment (MBT/ST) in patients with severe personality disorders. The main questions it aims to answer are: 1. Is generalist treatment (GIT-PD) non-inferior in improving level of personality functioning compared to specialist treatment (MBT/ST) in patients suffering from severe personality disorders (PD)? 2. What patient characteristics predict which patients will benefit more from specialist or generalist treatment? Participants will be randomized to either specialist or generalist treatment. Interventions included in specialist treatment are Mentalization-Based Treatment (MBT) and Schema Therapy (ST). Generalist treatment will be offererd following the principles of the Guideline-Informed Treatment for Personality Disorders (GIT-PD), a principle-driven treatment framework based upon common factors and allowing personalized treatment according to patients' needs. All participating institutions offer GIT-PD and MBT and/or ST. Before, during and after following this treatment participants will complete measurements at 8 distinct time points. Participants will be asked to: * complete a range of instruments at baseline to enable the construction of a personalized advantage index to predict treatment response based on patient characteristics * complete questionnaires at all 7 post-randomization time points * undergo a semi-structured interview at 3 time points * follow treatment for personality disorders (either GIT-PD or MBT/ST)
Age range
18 Years
Sex
ALL
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Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Level of Personality Functioning Scale - Brief Form 2.0 (LPFS-BF 2.0)
Timeframe: From enrollment to the follow-up assessment 30 months after the start of treatment.
Semi-structured Interview for Personality Functioning (STiP-5.1)
Timeframe: From enrollment to the follow-up assessment 30 months after the start of treatment.