Many individuals living with borderline personality disorder (BPD) have experienced childhood trauma, such as abuse or neglect. A significant number of them also meet the criteria for post-traumatic stress disorder (PTSD). However, standard psychotherapies often do not address both conditions at the same time, which can affect treatment outcomes. A research team in Germany developed and validated a 45-week individual psychotherapy that has shown promising results for individuals coping with both BPD and PTSD. It has already been adapted and offered in English-speaking settings such as Toronto and Boston. This study aims to adapt this therapy into French in Quebec. Over 24 months, we will conduct a mixed-methods observational study to evaluate changes in symptoms (BPD, PTSD, and other comorbidities) and in daily functioning.
Age range
18 Years
Sex
ALL
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
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.
Patients' qualitative experiences of the treatment
Timeframe: At treatment inclusion, 6-months into treatment and 6-months post-treatment
Patients' qualitative experiences of the treatment
Timeframe: At treatment initiation, 6-months into treatment and 6-months post-treatment
Clinicians' qualitative experiences of treatment
Timeframe: At 12 months after treatment initiation and again at 24 months after treatment initiation
Participants change in BPD symptom severity
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant changes in PTSD symptoms
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant change in Dissociative experiences
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant diagnosis of borderline personality disorder
Timeframe: At treatment initation
Participant ADHD Screening
Timeframe: At treatment initiation
Participant change in depression
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant change in suicidal behaviors
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant alcohol use
Timeframe: At treatment initiation and 12-months into treatment
Patient impulsivity
Timeframe: At treatment initiation and 12-months into treatment
Participant and Clinician Working Alliance
Timeframe: Every 3 months during the first 12 months of treatment
Clinician treatment adherence to DBT-PTSD
Timeframe: Two sessions per therapist, scheduled at random points during the 12-month treatment period
Clinician competence for DBT-PTSD
Timeframe: Two sessions per therapist, scheduled at random points during the 12-month treatment period
Participant change in functioning
Timeframe: At treatment initiation and every 3 months during the first 12 months of treatment
Participant ADHD Screening
Timeframe: At treatment initiation