Evidence map›Paper›PMID 40897475›Full record

ArticleBMJ open2025

Short-term versus long-term psychotherapy for borderline personality disorder: a protocol for an individual patient data pooled analysis of two randomised clinical trials.

Sophie Juul, Shelley McMain, Markus Harboe Olsen, Alexander Chapman, Johanne Pereira Ribeiro, Ole Jakob Storebø, Janice Kuo, Emilie Hestbaek, Caroline Barkholt Kamp, Marie Rishede and 7 more

Abstract readClinical Trial Protocol
In one paragraph

Article in BMJ open, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

17 authors.

Sophie JuulCopenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark sophie.juul@ctu.dk.ORCID http://orcid.org/0000-0002-6171-2904
Shelley McMainCentre for Addiction and Mental Health, Toronto, Ontario, Canada.
Markus Harboe OlsenCopenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Alexander ChapmanDepartment of Psychology, Simon Fraser University, Vancouver, British Columbia, Canada.
Johanne Pereira RibeiroCenter for Evidence-Based Psychiatry, Psychiatric Research Unit, Psychiatry Region Zealand, Denmark, Slagelse, Denmark.ORCID http://orcid.org/0000-0001-6019-022X
Ole Jakob StorebøCenter for Evidence-Based Psychiatry, Psychiatric Research Unit, Psychiatry Region Zealand, Denmark, Slagelse, Denmark.ORCID http://orcid.org/0000-0003-0204-7745
Janice KuoDepartment of Psychology, Palo Alto University, Palo Alto, California, USA.
Emilie HestbaekMental Health Centre Stolpegaard, Copenhagen University Hospital - Mental Health Services, Copenhagen, Denmark.ORCID http://orcid.org/0000-0003-0508-7929
Caroline Barkholt KampCopenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.
Marie RishedeDepartment of Psychiatry, Mental Health Services East, Roskilde, Region Zealand, Denmark.
Frederik Weischer FrandsenMental Health Centre Stolpegaard, Copenhagen University Hospital - Mental Health Services, Copenhagen, Denmark.
Sune BoDepartment of Psychology, University of Copenhagen, Copenhagen, Denmark.
Stig PoulsenDepartment of Psychology, University of Copenhagen, Copenhagen, Denmark.ORCID http://orcid.org/0000-0002-0536-1820
Per SørensenMental Health Centre Stolpegaard, Copenhagen University Hospital - Mental Health Services, Copenhagen, Denmark.
Anthony BatemanUniversity College London, London, UK.
Sebastian SimonsenMental Health Centre Stolpegaard, Copenhagen University Hospital - Mental Health Services, Copenhagen, Denmark.
Janus C JakobsenCopenhagen Trial Unit, Centre for Clinical Intervention Research, The Capital Region, Copenhagen University Hospital - Rigshospitalet, Copenhagen, Denmark.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe evidence for the optimal duration of psychotherapy for borderline personality disorder (BPD) is scarce. Two previous trials have compared different durations of psychotherapy. The first compared 6 months versus 12 months of dialectical behaviour therapy for BPD (the FASTER trial). The second compared 5 months versus 14 months of mentalisation-based therapy for BPD (the MBT-RCT trial). The primary objective of the present study will be to provide an individual patient data pooled analysis of two randomised clinical trials by combining the two short-term groups and the two long-term groups from the FASTER and MBT-RCT trials, thereby providing greater statistical power than the individual trials. Accordingly, we will evaluate the overall evidence on the effects of short-term versus long-term psychotherapy for BPD and investigate whether certain subgroups might benefit from short-term versus long-term psychotherapy.

methodsAn individual patient data pooled analysis of the FASTER trial and the MBT-RCT trial will be conducted. The primary outcome will be a composite of the proportion of participants with a suicide, a suicide attempt or a psychiatric hospitalisation. The secondary outcome will be the proportion of participants with self-harm. Exploratory outcomes will be BPD symptoms, symptom distress, level of functioning and quality of life. We will primarily assess outcomes at 15 months after randomisation for the FASTER trial and at 16 months after randomisation for the MBT-RCT trial. Predefined subgroups based on the design variables in the original trials will be tested for interaction with the intervention as follows: trial, sex (male compared with female), age (below or at 30 years compared with above 30 years) and baseline level of functioning (Global Assessment of Functioning baseline score at 0-49 compared with 50-100). ETHICS AND DISSEMINATION: The statistical analyses will be performed on anonymised trial data that have already been approved by the respective ethical committees that originally assessed the included trials. The final analysis will be published in a peer-reviewed scientific journal and the results will be presented at national seminars and international conferences. PROSPERO REGISTRATION NUMBER: CRD42024612840.

Indexed as

Borderline Personality DisorderDialectical Behavior TherapyPsychotherapyPsychotherapy, BriefAdultDuration of TherapyFemaleHumansMaleRandomized Controlled Trials as TopicSuicide, AttemptedTreatment OutcomePersonality disordersPSYCHIATRYRandomized Controlled Trial

Identifiers

PMID40897475
PMCPMC12406879

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.