PSYCHOPATHY.COMP Program Among Male Prison Inmates With Psychopathy
COMPATi
COMPATi: A Randomized Controlled Trial on the Efficacy of the PSYCHOPATHY.COMP Program Among Male Prison Inmates With Psychopathy
3 other identifiers
interventional
200
1 country
1
Brief Summary
The goal of this clinical trial is to learn whether PSYCHOPATHY.COMP, an individual compassion-focused, therapy-based intervention of 20 weekly sessions, can reduce psychopathy in prison inmates. Psychopathy is linked with the most severe and persistent forms of antisocial behavior. This trial will also learn whether the program improves emotional and behavioral regulation. The main questions are:
- Does PSYCHOPATHY.COMP reduce psychopathy?
- Does PSYCHOPATHY.COMP improve emotional and behavioral regulation? Researchers will compare PSYCHOPATHY.COMP with the usual individual case management support provided in prisons. Portuguese-speaking adult male prison inmates will be invited to participate. Those who consent to participate will be screened for inclusion (T0). A total of 200 eligible participants will take part. All participants will be invited to complete a baseline assessment (T1, pre-treatment assessment), after which they will be randomly assigned to receive PSYCHOPATHY.COMP or the usual care provided in the prison for a period of around six months. All participants will be invited to complete a post-treatment assessment (T2) and a six-month follow-up assessment post-treatment. Assessments will collect data on sociodemographic characteristics and legal/criminal information, psychological outcomes (psychopathy, emotional regulation, and behavioral regulation), psychological mediators (mechanisms of change: compassion-related variables), and moderators (personality pathology), and data on social desirability. This study aims to contribute to advancing scientific knowledge about whether and how to reduce psychopathy among prison inmates and have an impact on clinical practice and society by making available evidence-based interventions to this at-risk/high-risk population.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P75+ for not_applicable
Started Apr 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
March 13, 2026
CompletedFirst Posted
Study publicly available on registry
March 18, 2026
CompletedStudy Start
First participant enrolled
April 1, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
November 30, 2027
ExpectedStudy Completion
Last participant's last visit for all outcomes
November 30, 2027
March 24, 2026
March 1, 2026
1.7 years
March 13, 2026
March 19, 2026
Conditions
Keywords
Outcome Measures
Primary Outcomes (2)
Efficacy Testing: change from eligibility assessment in participant-reported psychopathy (primary outcome) to six-month follow-up
Modified intention-to-treat (mITT, all participants randomized) and per protocol (PP, only participants who completed a sufficient dose) analyses of mean differences in participant-reported psychopathy between PSYCHOPATHY.COMP and TAU groups. Measured with the Self-Report Psychopathy Scale - Short-form (SRP-SF): a 29-item, shortened version of SRP-4 that assesses psychopathy according to the conceptualization of the Hare's Psychopathy Checklist - Revised. SRP-SF measures four facets of psychopathy: interpersonal (INT; 7 items), affective (AFF; 7 items), lifestyle (LIF; 7 items), and antisocial (ANT; 8 items). Items are rated on a five-point Likert-type scale, ranging from 1: "Strongly disagree" to 5: "Strongly agree". Total and subscale scores are computed by summing the corresponding individual item scores (after correcting for reversed items), with higher scores indicating higher levels of psychopathic traits.
From eligibility to six months after the end of treatment. Measured at eligibility (T0), baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Efficacy Testing: change from eligibility assessment in participant-reported psychopathy (primary outcome) to six-month follow-up
mITT and PP analyses of mean differences in participant-reported psychopathy between PSYCHOPATHY.COMP and TAU groups. Measured with the Levenson Self-Report Psychopathy Scale (LSRPS): a 26-item questionnaire assessing psychopathy in two domains: primary (selfish, callous, uncaring and manipulative; 16 items) and secondary (impulsivity and behavioural control; 10 items) psychopathy, which aligns with the conceptualization of the Hare's Psychopathy Checklist - Revised. Items are rated on a four-point Likert-type scale, ranging from 1: "Strongly disagree" to 4: "Strongly agree". Total and subscale scores are computed by summing the corresponding individual item scores (after correcting for reversed items), with higher scores indicating higher levels of psychopathy.
From eligibility to six months after the end of treatment. Measured at eligibility (T0), baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Secondary Outcomes (3)
Efficacy Testing: changes from baseline in participant-reported emotional regulation (secondary outcome) to six-month follow-up
From baseline to six months after the end of treatment. Measured at baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Efficacy Testing: changes from baseline in participant-reported emotional regulation (secondary outcome) to six-month follow-up
From baseline to six months after the end of treatment. Measured at baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Efficacy Testing: changes from eligibility in participant-reported behavioral regulation (secondary outcome) to six-month follow-up
From eligibility to six months after the end of treatment: from eligibility to baseline (T0-T1, pre-treatment), baseline to within one-month after treatment (T1-T2, during treatment), within one-month to six months after treatment (T2-T3, post-treatment)
Other Outcomes (4)
Mediation Testing: participant-reported compassion-related variables
From baseline to six months after the end of treatment. Measured at baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Mediation Testing: participant-reported compassion-related variables
From baseline to six months after the end of treatment. Measured at baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
Mediation Testing: participant-reported compassion-related variables
From baseline to six months after the end of treatment. Measured at baseline assessment (T1, pre-treatment), within one month after the end of treatment (T2, post-treatment), and six months (T3, follow-up) after the end of treatment
- +1 more other outcomes
Study Arms (2)
Treatment
EXPERIMENTALPSYCHOPATHY.COMP
Control
ACTIVE COMPARATORTreatment as Usual (TAU)
Interventions
Participants allocated to the treatment group will receive PSYCHOPATHY.COMP. PSYCHOPATHY.COMP is a manualized intervention of 20 weekly 60-min sessions (\~6 months) rooted in Compassion Focused Therapy (CFT). PSYCHOPATHY.COMP follows a progressive strategy of change in four modules: (1) The basics of our mind; (2) Our mind according to CFT; (3) Compassionate Mind Training; and (4) Recovery, relapse and prevention. As a common feature of all therapeutic sessions, therapists are focused on developing a secure therapeutic relationship. PSYCHOPATHY.COMP is delivered by psychologists skilled in CFT (including those from prisons). Psychologists will be trained (through an intensive, face-to-face 5-day training) and supervised (one session/month) by the research team during the delivery of the intervention. During PSYCHOPATHY.COMP, participants will not receive individual therapy (psychotherapy, psychological treatment) by an accredited psychologist or therapist.
Participants in the control group will receive the routine support offered in the prison setting, tailored to individual case management and focused on behavioural management and adjustment.
Eligibility Criteria
You may qualify if:
- male prison inmates,
- Portuguese-speaking,
- aged between 19 and 30 years
- having at least one prior case in the juvenile justice system in which a judicial measure was applied,
- with high levels of psychopathic traits (measured with the SRP-SF and LSRPS self-reported questionnaires)
- with an Antisocial Personality Disorder (ASPD) diagnosis (measured with the SCID-II)
You may not qualify if:
- suspected psychotic/autism spectrum disorders and/or cognitive impairments,
- female,
- sentence length inferior to 24 months since the start of the study.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
Prisons of the Direção-Geral de Reinserção e Serviços Prisionais (DGRSP)
Lisbon, Portugal
Related Publications (22)
Ribeiro da Silva, D., de Carvalho, I. M., & Garofalo, C. (2024). Treatment of youth and adults with psychopathic traits detained in forensic settings: A systematic review. Aggression and Violent Behavior, 76, 101922. https://doi.org/10.1016/j.avb.2024.101922
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BACKGROUNDSousa R, Paulo M, Brazao N, Castilho P, Rijo D. Measuring compassion toward others: Dimensionality of the compassion scale in community adolescents and in adolescents with behavioral disorders. Psychol Assess. 2022 Jul;34(7):631-642. doi: 10.1037/pas0001133. Epub 2022 Mar 31.
PMID: 35357875BACKGROUNDSpielberger, C. D. (1988). Professional Manual for the State-Trait Anger Expression Inventory (STAXI). Odessa, FX: Psychological Assessment Resources
BACKGROUNDLevenson MR, Kiehl KA, Fitzpatrick CM. Assessing psychopathic attributes in a noninstitutionalized population. J Pers Soc Psychol. 1995 Jan;68(1):151-8. doi: 10.1037//0022-3514.68.1.151.
PMID: 7861311BACKGROUNDHare, R. D. (2003). Manual for the revised psychopathy checklist (2nd ed.). Toronto, Canada: Multi-Health Systems
BACKGROUNDPaulhus, D. L., Neumann, C. S., & Hare, R. D. (2016). The SRP-4: Self-report psychopaty scale (4th ed.). Toronto, Canada: Multi-Health Systems
BACKGROUNDFirst, M. B., Gibbon, M., Spitzer, R. L., Williams, J. B. W., & Benjamin, L. S. (1997). Structured Clinical Interview for DSM-IV Axis II Personality Disorders (SCID-II). Washington, DC: American Psychiatric Press.
BACKGROUNDGilbert P, McEwan K, Matos M, Rivis A. Fears of compassion: development of three self-report measures. Psychol Psychother. 2011 Sep;84(3):239-55. doi: 10.1348/147608310X526511. Epub 2011 Apr 13.
PMID: 22903867BACKGROUNDPommier E, Neff KD, Toth-Kiraly I. The Development and Validation of the Compassion Scale. Assessment. 2020 Jan;27(1):21-39. doi: 10.1177/1073191119874108. Epub 2019 Sep 13.
PMID: 31516024BACKGROUNDCastilho P, Pinto-Gouveia J, Duarte J. Evaluating the Multifactor Structure of the Long and Short Versions of the Self-Compassion Scale in a Clinical Sample. J Clin Psychol. 2015 Sep;71(9):856-70. doi: 10.1002/jclp.22187. Epub 2015 Apr 22.
PMID: 25907562BACKGROUNDSilva, D. R., Campos, R., & Prazeres, N. (1999). O Inventário de Estado-Traço de Raiva (STAXI) e sua adaptação para a população portuguesa. Revista Portuguesa de Psicologia, 34, 55-81
BACKGROUNDSeara-Cardoso A, Queiros A, Fernandes E, Coutinho J, Neumann C. Psychometric Properties and Construct Validity of the Short Version of the Self-Report Psychopathy Scale in a Southern European Sample. J Pers Assess. 2020 Jul-Aug;102(4):457-468. doi: 10.1080/00223891.2019.1617297. Epub 2019 Jun 12.
PMID: 31188025BACKGROUNDKnight, R. A., & Guay, J.-P. (2006). The Role of Psychopathy in Sexual Coercion against Women. In C. J. Patrick (Ed.), Handbook of psychopathy (pp. 512-532). The Guilford Press
BACKGROUNDHare, R. D. (2020). The PCL-R assessment of psychopathy. In A. R. Felthous & H. Saß (Eds.), The Wiley International Handbook on Psychopathic Disorders and the Law (pp. 63-106). John Wiley & Sons. https://doi.org/10.1002/9781119159322.ch4
BACKGROUNDBrazao N, Rijo D, da Silva DR, do Ceu Salvador M, Pinto-Gouveia J. Personality Pathology Profiles as Moderators of the Growing Pro-Social Program: Outcomes on Cognitive, Emotion, and Behavior Regulation in Male Prison Inmates. J Pers Disord. 2021 Feb;35(1):84-113. doi: 10.1521/pedi_2019_33_424. Epub 2019 Apr 15.
PMID: 30985238BACKGROUNDGillespie SM, Jones A, Garofalo C. Psychopathy and dangerousness: An umbrella review and meta-analysis. Clin Psychol Rev. 2023 Mar;100:102240. doi: 10.1016/j.cpr.2022.102240. Epub 2022 Dec 13.
PMID: 36608488BACKGROUNDRibeiro da Silva D, Rijo D, Brazao N, Paulo M, Miguel R, Castilho P, Vagos P, Gilbert P, Salekin RT. The efficacy of the PSYCHOPATHY.COMP program in reducing psychopathic traits: A controlled trial with male detained youth. J Consult Clin Psychol. 2021 Jun;89(6):499-513. doi: 10.1037/ccp0000659.
PMID: 34264698BACKGROUND
MeSH Terms
Conditions
Interventions
Condition Hierarchy (Ancestors)
Intervention Hierarchy (Ancestors)
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- SINGLE
- Who Masked
- OUTCOMES ASSESSOR
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant Professor
Study Record Dates
First Submitted
March 13, 2026
First Posted
March 18, 2026
Study Start
April 1, 2026
Primary Completion (Estimated)
November 30, 2027
Study Completion (Estimated)
November 30, 2027
Last Updated
March 24, 2026
Record last verified: 2026-03
Data Sharing
- IPD Sharing
- Will share
- Shared Documents
- STUDY PROTOCOL, SAP, ICF, ANALYTIC CODE
- Time Frame
- Start date: March 2026 - no end date
- Access Criteria
- IPD and supporting information will made open on the Open Science Framework (OSF)
The study protocol will be submitted for publication. Participant individual data will be de-identified but will not be shared due to confidentiality and privacy concerns related to the sensitive nature of the participant population. De-identified aggregate data may be available upon reasonable request, subject to ethical approval.