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IRCT20260713070174N1 IRCT 2026-08-12 Islamic Azad University Comparison of the Effectiveness of Mentalization-Based Therapy and Acceptance and Commitment Therapy in Adolescents with a History of Suicide Attempt MBT-ACT Comparison of the Effectiveness of Mentalization-Based Therapy (MBT) and Acceptance and Commitment Therapy (ACT) in Reducing Impulsivity and Suicidal Ideation and Enhancing Resilience and Cognitive Flexibility in Adolescents with a History of Suicide Attempt in Shiraz 2026-09-20 anticipated 60 Recruiting https://irct.ir/trial/91851 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Education/Guidance, Randomization description: Simple Randomization Method: Following the confirmation of eligibility criteria and the acquisition of informed consent, participants are randomly assigned—using a random number table or computer-generated random numbers—with equal probability to one of two groups: Mentalization-Based Treatment (MBT) or Acceptance and Commitment Therapy (ACT). The allocation process ensures that each participant has an equal chance of being assigned to either group. The control group receives no treatment. N/A Suicide. Intervention 1: Intervention group:Intervention group: In this study, the first intervention group received Mentalization-Based Treatment (MBT) based on the protocol developed by Malberg (2021). The intervention was structured over 10 sessions with the aim of enhancing participants’ ability to understand their own and others’ thoughts, emotions, and behaviors. In the initial sessions, the fundamental concepts of mentalization, emotional awareness, difficulties related to mind-reading, impulsivity, and interpersonal sensitivity were introduced, enabling participants to gain greater insight into their internal states and those of others. During the middle sessions, skills related to emotion regulation, effective communication, mentalization practice, and the exploration of individual difficulties within a group context were taught. Furthermore, through clarification and a focus on participants’ emotional experiences, the therapist facilitated the development of interpersonal trust and relational understanding. In the final session, the therapeutic process was reviewed, and participants’ feelings regarding treatment termination and their achieved outcomes were explored. Intervention 2: Intervention group: In this study, the second intervention group received Acceptance and Commitment Therapy (ACT) based on Hayes’ (2004) protocol over eight sessions. The intervention was designed to enhance psychological flexibility, promote acceptance of internal experiences, and facilitate engagement in value-consistent behaviors. In the initial sessions, the therapeutic relationship, treatment contract, psychoeducation, exploration of personal experiences, the ineffectiveness of excessive control strategies, and the concept of creative hopelessness were addressed. During the middle sessions, cognitive defusion techniques, self-as-context, mindfulness practices, and changing individuals’ relationships with their thoughts and emotions were introduced and practiced. In the final sessions, participants explored personal values, developed commitment to purposeful actions, and established behavioral patterns aligned with their values, enabling them to respond more effectively to internal experiences and life challenges. Yes - There is a plan to make this available What will be shared: The data relating to the study participants is confidential and will be used solely for statistical analysis. When: The data from this study will be accessible for a period of 6 months after the publication of the research results in the form of scholarly articles. To whom: The data will be accessible to the researchers, including Dr. Mohammad Ranjbar, Dr. Ali Mohammad Rezaei, and Dr. Akbar Rezaei Fard, and the published articles will be made available to them. Conditions: The statistical analysis output will be available. Where to obtain: Applicants can contact via email at mohammad.ranjbar271174@gmail.com or WhatsApp at 09174137101. How to obtain: After the completion of the research and publication of the extracted articles, it will be available for a maximum of 6 months. Comments:
public Mohammad Ranjbar
First Floor, Ranjbar 3-Story Building, Alley 2, Sour Esrafil St., Atalasi, Shiraz
Shiraz Iran (Islamic Republic of) 7344115569 +98 71 3272 8290 mohammad.ranjbar271174@gmail.com Islamic Azad University scientific Dr. Ali Mohammad Rezaei
End of Daneshgah Blvd., Daneshgah St., Arsanjan, Postal Code: 7376153161
Arsanjan Iran (Islamic Republic of) ۷۳۷۶۱۵۳۱۶۱ +98 71 4352 3908 dr.rezaie@iau.ac.ir Islamic Azad University Iran (Islamic Republic of) Having a history of at least one previous suicide attempt Having sufficient psychological stability to participate in the study Being literate and able to complete the study questionnaires Not receiving similar psychotherapy during the study intervention period Providing written informed consent from both the participant and their parent or legal guardian 13 years 19 years Both Emergence of an immediate risk of suicide or severe intensification of suicidal thoughts. Severe psychiatric disorders (such as active psychosis, or bipolar disorder in a manic or hypomanic phase)... Suffering from acute physical illnesses or serious medical conditions that prevent regular attendance at therapy sessions. Withdrawal of the participant or their parent/legal guardian from further participation, as well as the emergence of any new psychiatric or medical condition that renders continued participation in the study ethically or therapeutically inappropriate. T14.91 Suicide attempt Behavior Behavior Intervention group:Intervention group: In this study, the first intervention group received Mentalization-Based Treatment (MBT) based on the protocol developed by Malberg (2021). The intervention was structured over 10 sessions with the aim of enhancing participants’ ability to understand their own and others’ thoughts, emotions, and behaviors. In the initial sessions, the fundamental concepts of mentalization, emotional awareness, difficulties related to mind-reading, impulsivity, and interpersonal sensitivity were introduced, enabling participants to gain greater insight into their internal states and those of others. During the middle sessions, skills related to emotion regulation, effective communication, mentalization practice, and the exploration of individual difficulties within a group context were taught. Furthermore, through clarification and a focus on participants’ emotional experiences, the therapist facilitated the development of interpersonal trust and relational understanding. In the final session, the therapeutic process was reviewed, and participants’ feelings regarding treatment termination and their achieved outcomes were explored. Intervention group: In this study, the second intervention group received Acceptance and Commitment Therapy (ACT) based on Hayes’ (2004) protocol over eight sessions. The intervention was designed to enhance psychological flexibility, promote acceptance of internal experiences, and facilitate engagement in value-consistent behaviors. In the initial sessions, the therapeutic relationship, treatment contract, psychoeducation, exploration of personal experiences, the ineffectiveness of excessive control strategies, and the concept of creative hopelessness were addressed. During the middle sessions, cognitive defusion techniques, self-as-context, mindfulness practices, and changing individuals’ relationships with their thoughts and emotions were introduced and practiced. In the final sessions, participants explored personal values, developed commitment to purposeful actions, and established behavioral patterns aligned with their values, enabling them to respond more effectively to internal experiences and life challenges. Impulsivity. Timepoint: before the intervention, after the intervention, and two months after the intervention endedIf you want, I can also give you a more formal academic version. Method of measurement: Barratt Impulsiveness Scale (Barratt et al., 1995). Suicidal Ideation. Timepoint: before the intervention, after the intervention, and two months after the intervention ended. Method of measurement: Beck Scale for Suicide Ideation (BSSI). Resilience. Timepoint: before the intervention, after the intervention, and two months after the intervention ended. Method of measurement: Connor-Davidson Resilience Scale (CD-RISC, 2003). Cognitive Flexibility. Timepoint: before the intervention, after the intervention, and two months after the intervention ended. Method of measurement: Cognitive Flexibility Inventory (CFI; Dennis & Vander Wal, 2010). Islamic Azad University, Arsanjan Branch Approved 2026-04-22 Ethics Committee of Arsenjan Branch, Islamic Azad University Islamic Azad University, Arsanjan Branch, Daneshgah St., Arsanjan, Fars Province, Postal Code: 7376153161 ارسنجان Fars Iran (Islamic Republic of)