CClinicalTrials.gg
CompletedNCT03677037MBT-RCTUpdated Jan 12, 2024

The Short-Term MBT Project

A Phase 3 interventional study of Short-term MBT and Long-term MBT in Borderline Personality Disorder, sponsored by Mental Health Services in the Capital Region, Denmark. Completed at 1 site in Denmark. Open to participants aged 18 Years to 100 Years. Per ClinicalTrials.gov, last updated 2024-01-12.

Sponsored by Mental Health Services in the Capital Region, Denmark · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
166
Allocation
Randomized
Ages
18 Years to 100 Years
Sex
All
01

Study summary

The study will evaluate the benefitial and harmful effects of short-term (20 weeks) compared to long-term (14 months) mentalization-based therapy for outpatients with subthreshold or diagnosed borderline personality disorder.

Read the detailed description

Psychotherapy for borderline personality disorder is often lengthy and resource-intensive. Mentalization-based therapy is an example of an evidence-based treatment that currently has empirical support as an 18-months outpatient program for borderline personality disorder. However, this duration is rarely available, and the long and costly treatment combined with a highly prevalent disorder result in insufficient access to evidence-based care.

The trial is an investigator-initiated, single-centre, assessor-blinded, randomized clinical superiority trial of short-term (20 weeks) compared to long-term (14 months) outpatient mentalization-based therapy for borderline personality disorder or subthreshold borderline personality disorder. Participants will be recruited from the Outpatient Clinic for Personality Disorders at Stolpegaard Psychotherapy Centre, Mental Health Services, Capital Region of Denmark. Participants will be assessed at trial intake using the Mini International Neuropsychiatric Interview and the Structured Clinical Interview for DSM-5 Personality Disorders. Participants will be included if they meet a minimum of four DSM-5 criteria for borderline personality disorder. Participants will be assessed blind to treatment allocation at baseline, and at 8, 16, and 24 months after randomization.

The primary outcome is severity of borderline symptomatology assessed using the Zanarini Rating Scale for Borderline Personality Disorder interview. Secondary outcomes include self-harm incidents, functional impairment (Work and Social Adjustment Scale), quality of life (Short-Form Health Survey), and global functioning (Global Assessment of Functioning scale). Psychiatric symptoms (Symptom Checklist 90) will be included as an exploratory outcome. Measures of personality functioning, attachment, group alliance, borderline symptoms and mentalization skills will be included as predictor and mediator variables.

02

Conditions studied

  • Borderline Personality Disorder

Keywords

  • mentalization-based therapy
  • borderline personality disorder
  • randomized clinical trial
  • psychotherapy research
  • treatment intensity
03

In context

Personality Disorders

336 studies on the registry are indexed under Personality Disorders; 48 are open to participants now.

This study's enrollment of 166 is above the median of 75 across 229 interventional studies indexed under Personality Disorders.

Browse Personality Disorders studies →

Lead sponsor

Mental Health Services in the Capital Region, Denmark is the lead sponsor of 51 studies on the registry; 9 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
18 Years to 100 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion Criteria exclusive to the Outpatient Clinic

  • Age >18 years
  • Personality disorder(s) considered to be primary diagnosis/diagnoses

Inclusion criteria

Inclusion Criteria exclusive to the trial:

  • A minimum of four DSM-5 criteria for borderline personality disorder
  • Written informed consent

Exclusion Criteria exclusive to the Outpatient Clinic:

  • Possibility of a learning disability (IQ\<75)
  • A diagnosis of schizotypal personality disorder or antisocial personality disorder
  • Presence of a comorbid psychiatric disorder that requires specialist treatment elsewhere
  • Current (past 2 months) substance dependance including alcohol
  • Concurrent psychotherapeutic treatment outside the clinic

Exclusion criteria

Exclusion Criteria exclusive to the trial:

  • Lack of informed consent
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Double (Investigator, Outcomes assessor)
Enrollment
166 participants (actual)

Study arms

  • Experimental
    Short-term MBT

    The experimental group is short-term mentalization-based therapy. The treatment program includes 20 weeks of mentalization-based group therapy with conjoined individual therapy every second week. The program also includes psychoeducation and individual caseformulations.

    Other: Short-term MBT

  • Active comparator
    Long-term MBT

    The control group is long-term mentalization-based therapy. The treatment program includes 14 months of weekly mentalization-based group therapy with combined individual therapy every second week. The program also includes psychoeducation and individual caseformulations.

    Other: Long-term MBT

Interventions

  • OtherShort-term MBT

    Short-term mentalization-based therapy

  • OtherLong-term MBT

    Long-term mentalization-based therapy

06

What researchers measure

Primary outcomes

  1. Change in severity of borderline personality disorder assessed with the Zanarini Rating Scale for Borderline Personality Disorder (ZAN-BPD) interview

    ZAN-BPD is an investigator-administered interview assessing change in severity of borderline personality disorder over time. Each of the nine DSM-5 criteria for borderline personality disorder are rated on a scale from 0-4, where 4 is the most severe, yielding a total score from 0-36.

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

Secondary outcomes

  1. Change in functional impairmment assessed with the Work and Social Adjustment Scale (WSAS)

    WSAS is a 5-item questionnaire assessing change in functional impairment. Each item is rated on a scale from 0-8, where 0 is no impairment and 8 is severe impairment, yielding a total score between 0-40.

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

  2. Change in quality of life assessed with the Short-Form Health Survey 36 (SF-36)

    SF-36 is a questionnaire assessing change in self-reported quality of life over time. The instrument measures eight health dimensions: physical function (PF), role physical (RF), bodily pain (BP), social function (SF) role emotional (RE), general health (GH), vitality (VT) and mental health (MH). The questions related to each dimension are scored on a scale from 0 (worst score) to 100 (best score).

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

  3. Change in global functioning assessed with the Global Assessment of Functioning (GAF)

    GAF is an investigator-administered rating of change in global functioning over time. Global funtioning is rated on a scale from 0-100 for both symptomatic and functional impairment, yielding two total scores from 0-100, where 100 is no impaitment and 0 is severe impairment.

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

  4. Change in amount of self-harm incidents

    Proportion of participants with severe self-harm defined as deliberate acts of self-harm resulting in visible tissue damage - data will be collected as both dichotomous data and count data.

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

Other outcomes

  1. Change in psychiatric symptom distress assessed with the Symptom Checklist 90 (SCL-90)

    SCL-90 is a questionnaire assessing change in psychiatric symptom distress over time. All 90 items are rated on a scale from 0-4. The total score is divided by number of items, yielding a total score on the Global Severity Index ranging from 0 to 4, where 4 is the most severe.

    Time frame: Assessed at baseline, and at 8, 16 and 24 months post-randomization

07

Study locations

1 site
  • Stolpegaard Psychotherapy Centre, Mental Health Services, Capital Region of Denmark
    Gentofte, 2820, Denmark
08

References and documents

Publications

  • Juul S, Simonsen S, Poulsen S, Lunn S, Sorensen P, Bateman A, Jakobsen JC. Detailed statistical analysis plan for the short-term versus long-term mentalisation-based therapy for outpatients with subthreshold or diagnosed borderline personality disorder randomised clinical trial (MBT-RCT). Trials. 2021 Jul 28;22(1):497. doi: 10.1186/s13063-021-05450-y. PubMed 34321051 ↗
  • Gibbon S, Khalifa NR, Cheung NH, Vollm BA, McCarthy L. Psychological interventions for antisocial personality disorder. Cochrane Database Syst Rev. 2020 Sep 3;9(9):CD007668. doi: 10.1002/14651858.CD007668.pub3. PubMed 32880104 ↗
  • Storebo OJ, Stoffers-Winterling JM, Vollm BA, Kongerslev MT, Mattivi JT, Jorgensen MS, Faltinsen E, Todorovac A, Sales CP, Callesen HE, Lieb K, Simonsen E. Psychological therapies for people with borderline personality disorder. Cochrane Database Syst Rev. 2020 May 4;5(5):CD012955. doi: 10.1002/14651858.CD012955.pub2. PubMed 32368793 ↗
  • Juul S, Lunn S, Poulsen S, Sorensen P, Salimi M, Jakobsen JC, Bateman A, Simonsen S. Short-term versus long-term mentalization-based therapy for outpatients with subthreshold or diagnosed borderline personality disorder: a protocol for a randomized clinical trial. Trials. 2019 Apr 5;20(1):196. doi: 10.1186/s13063-019-3306-7. PubMed 30953536 ↗

Individual participant data

Plan to share: Undecided

09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Jan 12, 2024, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT03677037
Lead sponsor
Mental Health Services in the Capital Region, Denmark
Collaborators
University of Copenhagen, Copenhagen Trial Unit, Center for Clinical Intervention Research
Responsible party
Sponsor
First posted
Sep 19, 2018
Start date
Sep 24, 2018
Primary completion
Dec 15, 2022
Completion
Dec 15, 2023
Last update
Jan 12, 2024

Study contacts

Sebastian Simonsen, PhD
study director · Sponsor-Investigator

Oversight

Data monitoring committee
Yes
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Jan 2024. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion