Effectiveness of Mentalization-based Therapy (MBT)

April 22, 2025 updated by: Oulu University Hospital

Effectiveness of Mentalization-based Therapy (MBT) as Part of a Stepped Mental Health Care in Finland - a Pilot Study

The effects of psychological treatment, mentalization-based therapy, will be studied among persons with mental disorders seeking help from mental health care services.

Study Overview

Detailed Description

Background: Mentalization-based therapy (MBT) has a growing evidence base as a group treatment, and research on MBT as an individual treatment is needed. This study will provide crucial new information on its effectiveness and usability in everyday patient care.

Methods: The study design will be an non-randomized clinical pilot study. We will study the effectiveness of MBT and analyze which factors are associated with better effectiveness. The length of intervention will be 12 months. The primary outcome measure is the change in psychological symptoms and well-being from the beginning to the end of MBT treatment, measured by CORE-OM. Secondary outcomes include several measures of symptoms, functioning, quality of life, and mentalization. Outcomes will be assessed at 6, 12 and 18 months. The study group will comprise of 64 patients receiving MBT. For comparison, patient group (n=64) with similar characteristics (age, gender, diagnosis) receiving treatment as usual (TAU) in psychiatric services will be ascertained from medical records, and their outcomes after 12 months of treatment will be compared to that of MBT -group.

Intervention / Treatment: Behavioral: Mentalization-based treatment/therapy

Participation criteria: Patients are not strictly limited to a specific disease/diagnostic group. This choice has been made because there is an increasing need in the mental health care for the treatment and therapy of this multi-symptom and severely symptomatic patient group, which also makes the results of the study more applicable to a real life. Patients will be selected for the MBT and TAU based on inclusion and exclusion criteria and patients preference. In addition, the selection to MBT will be made by a trained MBT therapist, who will assess the patient's suitability for MBT (e.g., patient willing to engage in active psychotherapeutic work, interested in the inner world of experience, willing to work interactively).

Study Type

Interventional

Enrollment (Estimated)

128

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

      • Oulu, Finland
        • Recruiting
        • University Hospital of Oulu
        • Contact:
        • Contact:
        • Contact:
          • Erika Jääskeläinen, MD, PhD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

MBT Group:

  • Age 18-64 years.
  • Severe psychological symptoms, decreased functioning ability for long-term
  • Challenges with interpersonal relationships and emotional regulation
  • Patients willing to receive MBT
  • At least two of the following:

    • Depression (diagnosis codes: F31.3-F31.5, F32.0-F32.9, F33.3-F33.9, F34.1) or anxiety disorder (diagnosis codes: F40-F48)
    • Trauma background either as diagnosis or as need for treatment
    • Signs of personality disorder (suspected or diagnosed)

TAU group:

  • Age 18-64 years.
  • Severe psychological symptoms, decreased functioning ability for long-term
  • Challenges with interpersonal relationships and emotional regulation
  • At least two of the following

    • Depression (diagnosis codes: F31.3-F31.5, F32.0-F32.9, F33.3-F33.9, F34.1) or anxiety disorder (diagnosis codes: F40-F48)
    • Trauma background either as diagnosis or as need for treatment
    • Signs of personality disorder (suspected or diagnosed)

Exclusion Criteria:

MBT Group:

  • Active substance use disorder (i.e., intoxication F1x.0, active dependence F1x.24, Continuous use F1x.25), a physiological withdrawal state F1x.3 and F1x.4, or psychotic disorder F1x.5).
  • Acute psychosis (defined as the recent onset of severe psychotic symptoms that interfere with functioning and are not yet in a therapeutic state. Non-acute psychotic symptoms are not exclusionary)
  • Disorder requiring inpatient treatment
  • Previously received MBT
  • Currently receiving psychotherapeutic treatment (previous psychotherapeutic treatment is not an exclusion)

The exclusion criteria, therefore, do not exclude psychotic disorders or any other psychiatric illness (except substance abuse disorders).

TAU group:

  • Active substance use disorder (i.e., intoxication F1x.0, active dependence F1x.24, Continuous use F1x.25), a physiological withdrawal state F1x.3 and F1x.4, or psychotic disorder F1x.5).
  • Acute psychosis (defined as the recent onset of severe psychotic symptoms that interfere with functioning and are not yet in a therapeutic state. Non-acute psychotic symptoms are not exclusionary)
  • Disorder requiring inpatient treatment
  • Previously received MBT
  • Intensive psychotherapy (e.g. rehabilitative psychotherapy or similar weekly long-term psychotherapy)

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Mentalisation-Based Therapy
MBT is conducted according to the treatment manual developed by Bateman & Fonagy. Patients are offered weekly individual sessions with an MBT therapist for 12 months.
MBT is conducted according to the treatment manual developed by Bateman & Fonagy. Patients are offered weekly individual sessions with an MBT therapist for 12 months.
Active Comparator: Treatment as usual
The TAU group will receive treatment as usual, which in mental health services might include medication, supportive counseling, short therapy, and other limited psychotherapeutic treatments such as DKT. There is no requirement for a frequency of visits for the usual psychiatric care of the TAU group, as this would not be realistic in the current service system.
The TAU group will receive treatment as usual, which in mental health services might include medication, supportive counseling, short therapy, and other limited psychotherapeutic treatments such as DKT. There is no requirement for a frequency of visits for the usual psychiatric care of the TAU group, as this would not be realistic in the current service system, and the usual treatment would not be the usual treatment currently provided.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Clinical Outcomes in Routine Evaluation - Outcome Measure (CORE-OM)
Time Frame: baseline, 6, 12 and 18 months

A self-report measure of psychological distress and symptoms. Higher scores indicates worse outcomes. Includes four main domains: wellbeing, problems, functioning and risk (to self or others).

Based on detailed instructions on calculating the scores, clinical score minimun 0 and maximum 40.

baseline, 6, 12 and 18 months

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
The Big Five Inventory-2 Extra-Short Form (BFI-2-XS)
Time Frame: baseline, 6, 12 and 18 months
questionnaire assessing personality
baseline, 6, 12 and 18 months
the Inventory of Interpersonal Problems (IIP-32)
Time Frame: baseline, 6, 12 and 18 months
Questionnaire on interpersonal problems
baseline, 6, 12 and 18 months
Experiences in Close Relationships Short version (ECR-S)
Time Frame: baseline, 6, 12, and 18 months
Measures experiences in close relationships
baseline, 6, 12, and 18 months
Rosenberg Self-Esteem Scale (RSE)
Time Frame: baseline, 6, 12, and 18 months
Questionnaire on self-esteem
baseline, 6, 12, and 18 months
Emotion Regulation Questionnaire (ERQ)
Time Frame: baseline, 6, 12 and 18 months
Measure of emotion regulation
baseline, 6, 12 and 18 months
The Certainty About Mental States Questionnaire (CAMSQ)
Time Frame: baseline, 6, 12 and 18 months
Questionnaire on perceived capacity of mentalising oneself and others.
baseline, 6, 12 and 18 months
The Reflective Functioning Questionnaire (RFQ)
Time Frame: baseline, 6, 12 and 18 months
a brief measure of reflective functioning, i.e. mentalizing
baseline, 6, 12 and 18 months
Quality of life
Time Frame: baseline, 6, 12 and 18 months
WHO 1 question
baseline, 6, 12 and 18 months
The Montgomery-Åsberg Depression Rating Scale (MADRS)
Time Frame: baseline, 12 months
Interview based rating of depression symptoms and their severity. Minimum: 0 Maximum: 60 Higher scores indicate more severe symptoms.
baseline, 12 months
Social and Occupational Functioning Assessment Scale (SOFAS)
Time Frame: baseline, 12 months
Clinician/investigator rated measure of social and occupational functioning. Minimum value: 0 (Inadequate information), 1 (worst functioning, unable to function, persistent inability) Maximum value: 100 (Superior functioning in a wide range of activities)
baseline, 12 months
Clinical Global Impression- Severity scale (CGI-S)
Time Frame: baseline, 12 months
Clinical Global Impression of the severity of illness. Minimum value: 1 (normal, not at all ill) Maximum value: 7 (amongst the most severely ill)
baseline, 12 months
Working Alliance Inventory (WAI)
Time Frame: baseline, 6 and 12 months
Questionnaire on therapeutic alliance. Higher scores indicate better alliance.
baseline, 6 and 12 months
Suicidality
Time Frame: from baseline to 18 months
from questionnaires and medical records
from baseline to 18 months
Patient experiences of the treatment
Time Frame: 6 and 12 months
questions on how the patient has experienced the intervention, and if he/she has experienced the treatment as beneficial
6 and 12 months
Experiences of recovery
Time Frame: 12 and 18 months
Questions on experience of change of health status and recovery
12 and 18 months

Other Outcome Measures

Outcome Measure
Measure Description
Time Frame
Physical symptoms and illnesses
Time Frame: from baseline to 12 months
Information collected from the medical records. Data on physical symptoms or diagnosed physical illnesses, that the patient complains or seeks help will be collected from the medical records (visits to mental health care and somatic care).
from baseline to 12 months
Need of psychiatric services
Time Frame: from baseline to 12 months
Number of outpatient, inpatient and emergency visits. Data from medical records.
from baseline to 12 months
Use of medication
Time Frame: from baseline to 12 months
Use of psychiatric medications. Data from medical records.
from baseline to 12 months

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 25, 2024

Primary Completion (Estimated)

December 31, 2025

Study Completion (Estimated)

June 30, 2026

Study Registration Dates

First Submitted

October 2, 2024

First Submitted That Met QC Criteria

October 23, 2024

First Posted (Actual)

October 26, 2024

Study Record Updates

Last Update Posted (Actual)

April 25, 2025

Last Update Submitted That Met QC Criteria

April 22, 2025

Last Verified

October 1, 2024

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

  • 240/2024

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

product manufactured in and exported from the U.S.

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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