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Mentalization-based Treatment Versus Bona-fide Treatment for Patients With Borderline Personality Disorder in Germany

Mentalisierungsbasierte Therapie Versus Bona-fide-Therapie für Patient:Innen Mit Borderline-Persönlichkeitsstörung in Deutschland (MaGnet): Eine Prospektive, Multizentrische Randomisiert-kontrollierte Studie Mentalization-based Treatment Versus Bona-fide Treatment for Patients With Borderline Personality Disorder in Germany (MAGNET): a Prospective, Multi-centre Randomized Controlled Trial

Status
Recruiting
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06018272
Acronym
MAGNET
Enrollment
304
Registered
2023-08-30
Start date
2024-02-28
Completion date
2028-03-31
Last updated
2024-05-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Borderline Personality Disorder

Brief summary

Background: Borderline Personality Disorder (BPD) is a serious mental disorder. Mentalization-based treatment (MBT) is one evidence-based treatment for individuals with BPD. Specifically, MBT has been highlighted for its effectiveness in reduction of suicidal and non-suicidal self-injury (NSSI). Yet, randomized-controlled trials (RCT) on MBT in outpatient settings compared with bona fide treatment (BFT) are still scarce and none has been conducted in Germany. The primary objective of this RCT is to investigate whether outpatient MBT is more effective in the reduction of crisis events (incidences of NSSI and suicide attempts) compared with BFT (namely psychodynamic or cognitive-behavioural psychotherapy) in Germany. Secondary, MBT's efficacy will be investigated with regard to cost-effectiveness, general and interpersonal functioning, BPD and general symptom severity, social adjustment, quality of life, reduction in psychotropic medication and therapy retention. Additionally, moderator as well as common and treatment specific mediator variables will be investigated. Study Design/ Study Population/ Methods: Across 5 study sites in Germany, 304 individuals of all genders from age 18 to 65 with a BPD diagnosis and NSSI or suicide attempts in the past will be asked to participate in the study for two years. In the first year, patients will receive either MBT or BFT (psychodynamic or cognitive behavioural psychotherapy) and will take part in continuous scientific assessments. Scientific assessments will continue after therapy completion up to a 12-moth follow up. As primary outcome, crisis events will be assessed via ecological momentary assessment (EMA) four times a week once per month during the first year and once every three months in the second year. Number of crisis events up to 2 years post randomization will be compared between treatment arms using a log-linear regression model following an intention-to-treat approach. Secondary outcomes, such as borderline and general symptom severity, will be assessed at several timepoints. A within-trial cost-effectiveness analysis (CEA) will be conducted with a societal perspective. Clinical Trial Rationale: This study investigates efficacy of MBT as BPD specific treatment in an outpatient setting compared with BFT in Germany. Results of this study can address a treatment gap in the German healthcare system, and inform about health economic aspects of BPD treatment as well as mechanisms of psychotherapeutic change.

Interventions

BEHAVIORALMentalization-Based Treatment (MBT)

Patients in MBT will receive a maximum of 58 sessions in total. Of those, 30 are weekly individual sessions. 28 sessions are weekly group sessions conducted by two therapists, and consisting of 8 introductory sessions of group psychoeducation followed by 20 group therapy sessions. The duration of MBT is 12 months. MBT is manualized and relies on validating the emotional experience of patients that aims to promote mentalizing. The proposed mechanism of change in MBT is to stabilize mentalizing in certain focus areas in order to create a psychic buffer between affect and behaviour to foster affect regulation, reduce impulsivity and promote functional supportive relationships.

BEHAVIORALBona-Fide Treatment in Germany (BFT)

Patients in BFT will receive one to two weekly sessions of Bona-Fide-Treatment (Psychodynamic Therapy, PT, or Cognitive Behavioural Therapy, CBT) conducted by community experts delivered as short-term psychotherapy (\<24 sessions) or long-term psychotherapy (\>24 sessions). BFT can be delivered as individual, group or a combination of individual and group treatment as stated in the German psychotherapy regulations.

Sponsors

German Research Foundation
CollaboratorOTHER
University Düsseldorf
CollaboratorOTHER
Jena University Hospital
CollaboratorOTHER
Universitätsklinikum Ulm
CollaboratorUNKNOWN
Psychologische Hochschule Berlin
CollaboratorUNKNOWN
Heidelberg University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Eligibility

Sex/Gender
ALL
Age
18 Years to 65 Years
Healthy volunteers
No

Inclusion criteria

* Borderline Personality Disorder * non-suicidal self injury or suicide attempts in the past two years as indicated by the IPDE item repeated suicidal behaviours, gestures, threats or self-harm, one of which has occurred in the past six months

Exclusion criteria

* acute substance use disorder (exception: cannabis dependency) * diagnosis of schizophrenia or schizotypal personality disorder * bipolar I disorder (DSM-5) * cognitive impairment (IQ\<80) or evidence of organic brain disorder * BMI\<16.5 * serious medical condition that will require hospitalization within the next year (e.g. cancer) * no sufficient German language abilities

Design outcomes

Primary

MeasureTime frameDescription
change in crisis events assessed with Ecological Momentary Assessment with items based on the SHBQ (Gutierrez et al., 2001)every second day during one week per month in the first year, and during one week every three months in the second yearcomposite score (non)suicidal self injury

Secondary

MeasureTime frameDescription
Change in psychiatric symptom severity assessed with the DASS- 21 (Lovibond & Lovibond, 1995)Day 0, Month 6, Month 12, Month 24
Change in health and disability assessed with WHODAS 2.0 Short Form (Üstün et al., 2010)Day 0, Month 6, Month 12, Month 24
Change in personality funcitioning assessed with LPFS-BF (Hutsebaut et al., 2016)Day 0, Month 6, Month 12, Month 24
Change in personality traits assessed with PID5BF+M (Bach et al., 2020)Day 0, Month 6, Month 12, Month 24
Change in threat hypersensitivity assessed with emotion classification task (Honecker et al., 2021)Day 0, Month 6, Month 12, Month 24Participants are presented with 160 faces, each unambiguously showing one of four emotional expressions (angry, fearful, happy, neutral). The goal of the task is to correctly classify these facial expressions. The task's collected behavioral data encompasses two key measurements: the ratio of accurate responses (specifically, correct emotion classification) and the time it takes to respond in trials where the emotion classification is correct.
Change in quality of life assessed with EQ-5D-5L (Herdman et al., 2011; EuroQol Research Foundation, 2019)Day 0, Month 6, Month 12, Month 24
Symptoms of Borderline Personality Disorder assessed with the IPDE (Loranger et al., 1997) and BSL-23 (Wolf et al., 2009)Day 0, Month 6, Month 12, Month 24; IPDE only at Month 24
Change in social adjustment assessed with WSAS (Marks, 1986)Day 0, Month 6, Month 12, Month 24
Change in emotional reactions to social exclusion, rejection and relational devaluation with SPQ (Stangier et al., 2021)Day 0, Month 6, Month 12, Month 24
Change in Interoceptive Body Awareness with MAIA-2 (Mehling et al., 2018)Day 0, Month 6, Month 12, Month 24
Changes in medication with self-report of medication prescription via adapted version of AD-SUS (Kuyken et al., 2015)Day 0, Month 6, Month 12, Month 24
Heath Care utilization with an adapted version of the AD-SUS (Kuyken et al., 2015)Day 0, Month 6, Month 12, Month 24
Change in acute dissociative symptoms with Dissociation-Tension Scale-4 (DSS-4; Stiglmayr et al., 2003)Day 0, Month 6, Month 12, Month 24
Change in trait anger assessed with STAXI-2 (Spielberger, 1999)Day 0, Month 6, Month 12, Month 24

Other

MeasureTime frameDescription
Assessment of the clients'attachment style with the Patient Attachment Coding System (Talia & Miller-Bottome, 2012)Month 6, Month 12Mediator
Assessment of the therapists' attunement and attachment status with the Therapist Attunement Scales (Talia & Muzi, 2017)Month 6, Month 12Mediator
Change of pleasure, arousal and dominance with Self-Assessment Manikin (Bradley, 1994)once a week in the first year and at Month 6 and Month 12Mediator
Assessment of the therapists' adherence to psychodynamic-interpersonal and cognitive-behavioural treatments with the Comparative Psychotherapy Process Scale (Hilsenroth et al., 2005)Month 6, Month 12Mediator
Interview for treatment and study evaluationMonth 24Semi-structured interview developed based on Krause et al. 2016 will be used to assess how patients experienced the therapy and the study, what aspects they perceived as positive or negative, and what impact the therapy had on their symptoms and their life
Assessment of the therapists' activity and appropriateness in essential domains of MBT with the Mentalization-Based Treatment Adherence and Competence Scale (Bateman & Fonagy, 2016)Month 6, Month 12Mediator
Mentalizing as mediator of change assessed with the Certainty About Mental States Questionnaire (CAMSQ; Müller et al., 2021)Month 6, Month 12Mediator
Therapeutic Agency Inventory (TAI; Huber et al., 2019)once a week in the first year and at Month 6 and Month 12Mediator
Group Questionnaire - short (GQ; Jensen, 2016)once a week in the first year and at Month 6 and Month 12Mediator
Epistemic Trust, Mistrust and Credulity Questionnaire (ETMCQ; Campbell et al., 2019)Month 6, Month 12Mediator
Experiences in Close Relationships-Revised Screening Version (ECR-RD8; Ehrenthal et al., 2021)Month 6, Month 12Mediator
Difficulties in Emotion Regulation Scale (DERS; Gratz & Roemer, 2004)Month 6, Month 12Mediator
Mentalizing as mediator of change assessed with Mentalizing Emotions Questionnaire (Kasper et al., submitted)Month 6, Month 12Mediator
Negative Effects Questionnaire (NEQ; Rozental et al., 2016)Month 12Serious adverse events of therapy
Therapeutic Alliance as mediator of change assessed with Working Alliance Inventory (WAI-SR, Hatcher & Gillaspy, 2006)once a week in the first year and at Month 6 and Month 12Mediator
Symptoms of PTSD and complex PTSD and complex PTSD Trauma experiences with Internation Trauma Interview (ITI; Roberts et al., 2019)Day 0Moderator
Symptoms of PTSD and complex PTSD with International Trauma Questionnaire (ITQ; Cloitre et al., 2018)Day 0Moderator
Level of personality functioning with Semi-Structured Interview for Personality Functioning DSM-5 (STiP; Hutsebaut et al., 2017)Day 0Moderator
Change of frequency of occurence of positive and negative automatic thoughts with Automatic Thoughts Questionnaire - Revised (ATQ-R; Kendall, 1989)Month 6, Month 12Mediator
Assessment of the frequency of alliance ruptures and resolution processes in therapy sessions with Rupture Resolution Rating System (Eubanks et al., 2015)Month 6, Month 12Mediator

Countries

Germany

Contacts

Primary ContactSvenja Taubner, Prof.
svenja.taubner@med.uni-heidelberg.de+496221564701
Backup ContactSophie Hauschild, Dr.
sophie.hauschild@med.uni-heidelberg.de

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026