The Effectiveness of Mentalization-Based Therapy on Frustration Tolerance, Emotional Information Processing, and Behavioral Inhibition in High School Students with Borderline Personality Disorder

Status

Active, not recruiting

Phases

Phase 3

Study type

Interventional

Source

IRCT

Registry ID

IRCT20251121068066N1

Enrollment

Registered

2025-11-28

Start date

2025-12-22

Completion date

Unknown

Last updated

2025-12-08

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

Conditions

borderline personality disorder. Borderline personality disorder

Interventions

Intervention 1: Intervention group: Participants received 20 therapy sessions, each lasting 60 minutes, conducted twice a week, based on the Mentalization-Based Therapy (MBT) approach by Fonagy and Ba

Eligibility

Sex/Gender

All

Age

15 Years to 18 Years

Inclusion criteria

Inclusion criteria: Ages between 15 and 18 years No concurrent psychological or psychiatric treatment during the past six months No self-reported physical illness that could interfere with consistent participation in treatment sessions

Exclusion criteria

Exclusion criteria: Unwillingness to continue participation in the study Failure to complete therapeutic assignments or tasks during sessions Absence from more than two scheduled treatment sessions

Design outcomes

Primary

Measure	Time frame
1) Frustration Tolerance: Assesses the individual’s capacity to tolerate frustration and cope with obstacles when pursuing goals.2) Emotional Information Processing: Evaluates the ability to process emotional experiences, including emotion suppression, experiencing and managing unpleasant emotions, emotion regulation, avoidance behaviors, and manifestations of unprocessed emotional content.3) Behavioral Inhibition: Measures the degree of inhibitory control and behavioral restraint in response to emotional or stressful stimuli. Timepoint: Assessments were conducted at three time points: pre-test (before the intervention), post-test (immediately after completion of the treatment sessions), and follow-up (three months after the post-test). Method of measurement: Data were collected through self-report instruments using standard questionnaires rated on a 5-point Likert scale (from “strongly disagree” to “strongly agree”).1) Frustration Tolerance: Assessed using the Harrington Failure Tolerance Scale (FTS), consisting of 35 items and 4 subscales. 2)Emotional Information Processing: Measured with the short version of the Emotional Information Processing Scale (EPS), containing 25 items and 5 subscales. 3) Behavioral Inhibition: Evaluated using the Behavioral Inhibition Scale (BIS), comprising 7 items.	—

Measure

Time frame

1) Frustration Tolerance: Assesses the individual’s capacity to tolerate frustration and cope with obstacles when pursuing goals.2) Emotional Information Processing: Evaluates the ability to process emotional experiences, including emotion suppression, experiencing and managing unpleasant emotions, emotion regulation, avoidance behaviors, and manifestations of unprocessed emotional content.3) Behavioral Inhibition: Measures the degree of inhibitory control and behavioral restraint in response to emotional or stressful stimuli. Timepoint: Assessments were conducted at three time points: pre-test (before the intervention), post-test (immediately after completion of the treatment sessions), and follow-up (three months after the post-test). Method of measurement: Data were collected through self-report instruments using standard questionnaires rated on a 5-point Likert scale (from “strongly disagree” to “strongly agree”).1) Frustration Tolerance: Assessed using the Harrington Failure Tolerance Scale (FTS), consisting of 35 items and 4 subscales. 2)Emotional Information Processing: Measured with the short version of the Emotional Information Processing Scale (EPS), containing 25 items and 5 subscales. 3) Behavioral Inhibition: Evaluated using the Behavioral Inhibition Scale (BIS), comprising 7 items.

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Countries

Iran (Islamic Republic of)

Contacts

Public ContactGholamreza Talebi

Islamic Azad University

rezatalebi@iau.ac.ir+98 913 317 0681

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026