Long-term outcomes after MBT for borderline personality disorder
Official title: MBT-EVOLVE: Mentalization-Based Treatment: Exploring Variability in Outcomes, Long-term Value and Experiences: A 10+ Year Follow-up of Two Types of MBT for BPD - Quantitative and Qualitative Perspectives on Long-term Functioning
Run by De Viersprong · NCT07509216 · Data updated 2026-11-12
This long-term follow-up checks how people with borderline personality disorder who received MBT in the past are doing more than 10 years later and whether the two MBT formats differ in long-term outcomes.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 18 Years and up |
| Sex | All |
| Enrollment | 113 (estimated) |
| Sponsor | De Viersprong Academic / other |
| Locations | 2 sites (Amsterdam and 1 other locations) |
| Status | Recruiting |
| Started | April 2, 2026 |
| Main results expected | December 2026 |
| Study ends | June 2027 |
| Registry record updated | September 30, 2026 |
| Trial ID | NCT07509216 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with borderline personality disorder who participated in the original MBT-DH vs MBT-IOP trial and consented to long-term follow-up.
✕Probably not a fit
Individuals not reachable for follow-up or who did not consent may not receive insight from this study.
A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.
What this trial studies
This is an observational follow-up of a prior multicenter randomized trial comparing two MBT formats for borderline personality disorder. The study aims to examine long-term functioning, health care use, and costs, more than a decade after initial MBT treatment. It assesses current symptoms, interpersonal functioning, daily living skills, identity development, and participation in society to understand sustained effects and differences between MBT-DH and MBT-IOP. The investigation may help refine MBT delivery models and inform cost-effectiveness considerations. Participants include individuals who were originally randomized to MBT-DH or MBT-IOP and agreed to be contacted for follow-up.
Why it matters
Potential benefit: If successful, the study could clarify long-term benefits of MBT and guide future treatment choices and resource allocation for people with BPD.
How similar studies have gone: Prior MBT trials showed benefits up to three years; this study is novel in exploring outcomes beyond ten years.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * Participation in the original randomized controlled trial of mentalization-based treatment (MBT-DH versus MBT-IOP) * Did not decline to be contacted for future research * Able to provide informed consent at the time of the long-term follow-up assessment (No separate exclusion criteria are specified, as exclusion follows directly from these inclusion criteria.)
Where it's running
-
Arkin - NPI
Amsterdam, Netherlands Recruiting -
De Viersprong
Halsteren, Netherlands Recruiting
Study contacts
- Study coordinator: Maaike L. Smits, Dr.
- Email: maaike.smits@deviersprong.nl
- Phone: 0031 88 7656200
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How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.