NCT06080373

Brief Summary

Background Recent literature suggests that ADHD is a risk factor for the development of antisocial behavior that is more severe and persistent than in community and other psychiatric populations. The combination of stimulant medication and psychotherapy (particularly cognitive-behavioral therapy, CBT) is considered an evidence-based intervention for adults with ADHD. In contrast, few studies have evaluated the efficacy of medication in adult prisoners with ADHD, and the literature on the efficacy of psychotherapy is virtually nonexistent. Therefore, this article presents the protocol of a trial that will assess the efficacy of a formulation-based CBT program for inmates with ADHD. Methods The study has a multicenter randomized controlled trial design. After screening and recruitment, participants will be randomly assigned to the CBT intervention, a general offender treatment program, or a waitlist. Pre- and post-treatment self-report and clinician-report assessments, as well as 6- and 12-month follow-up assessments will be conducted. These will include both clinical (e.g., ADHD symptoms, depression and anxiety symptoms, self-esteem, alcohol/drug abuse, treatment adherence, quality of life) and criminological (e.g., recidivism and risk of recidivism) measures. Linear mixed models will be used to assess differences between groups. Discussion This study may be the first to evaluate the efficacy of a psychotherapy intervention in adult inmates with ADHD. It is expected that addressing the specific needs of ADHD would not only result in the previously reported clinical improvements (e.g., reduction in ADHD and comorbidity symptoms), but also reduce the risk and rate of recidivism compared to the general intervention or no intervention. However, the design may be limited by the difficulties inherent in the prison setting and in following up the sample after release.

Trial Health

65
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Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
111

participants targeted

Target at P50-P75 for not_applicable

Timeline
24mo left

Started Sep 2027

Typical duration for not_applicable

Status
not yet recruiting

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

October 6, 2023

Completed
6 days until next milestone

First Posted

Study publicly available on registry

October 12, 2023

Completed
3.9 years until next milestone

Study Start

First participant enrolled

September 1, 2027

Expected
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2028

1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2029

Last Updated

May 6, 2026

Status Verified

April 1, 2026

Enrollment Period

1 year

First QC Date

October 6, 2023

Last Update Submit

April 29, 2026

Conditions

Outcome Measures

Primary Outcomes (2)

  • Conners Adult ADHD Diagnostic Interview for DSM-IV (CAADID)

    This is considered one of the primary outcomes. The CAADID is a structured interview divided into two parts. Part I may be self-administered or clinician-administered and collects information on the subject's demographic history, developmental history, associated risk factors, and comorbidity, while Part II must be administered by a trained clinician and assesses DSM-IV criteria for ADHD in adults. Only Part II will be used for the study, as information on patient history is not relevant for measuring response to interventions.

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • Reoffending rate

    This will be the primary criminological outcome. Police records will be checked every 6 months after the end of treatment to look for new arrests. We will also try to check court and prison records for new convictions and incarcerations. However, access to this information may be very limited in European criminal justice systems, so it may be difficult to obtain.

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

Secondary Outcomes (7)

  • Clinical Global Impression (CGI)

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • Attention-deficit/hyperactivity rating scale-IV

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • Rosenberg self-esteem scale (RSES

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • Adult ADHD Quality of Life Questionnaire (AAQoL

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • Maudsley Addiction Profile (MAP)

    Pre and post-treatment plus follow-up assessments 6 and 12 months after the end of the intervention

  • +2 more secondary outcomes

Other Outcomes (1)

  • Treatment adherence

    During the intervention

Study Arms (3)

Formulated-based cognitive behavioral therapy

EXPERIMENTAL

Participants randomized to the CBT group will receive a minimum of 13 and a maximum of 22 sessions of individual formulation-based CBT. It will be delivered by psychologists trained in CBT, according to a manual that will be available soon. Prior to intervention, a behavioral assessment is conducted to operationalize each case's clinically relevant behaviors, antecedents, and maintenance stimuli. Each case will be formulated and presented to the participant in simple and easy to understand language. To illustrate this, a schematic formulation of the typical case of an adult with ADHD is shown in Figure 2. Specific behavioral goals will then be agreed upon for each participant. To achieve these goals, various treatment strategies will be presented in the following sessions. The choice of strategies, the order in which they are applied, and the duration of each module will be customized for each participant according to the case formulation.

Behavioral: Formulation-based cognitive behavioral therapy

PROBECO and social therapeutic establishments

ACTIVE COMPARATOR

The Spanish participants assigned to the active control group will receive the PROBECO. It is a group program designed by the Spanish Penitentiary Agency for its application with inmates convicted of different types of violent crimes . Its main goals are to eradicate criminal behavior and reduce recidivism, to modify the relevant dynamic risk factors related to general delinquency, and to introduce new social skills and prosocial values. It consists of four phases: (I) general intervention: aimed at the acquisition of social skills; (II) specific intervention: consists of four specific educational itineraries; (III) relapse prevention; (IV) follow-up. Similarly, German participants will be assigned to a special type of prison known as a social therapeutic facility, where they will undergo compulsory psychotherapy focused primarily on relapse prevention.

Behavioral: PROBECO

Waitlist

NO INTERVENTION

Participants in waitlist control group will receive no treatment while experimental groups are treated. They will be offered to receive CBT after the study.

Interventions

PROBECOBEHAVIORAL

Spanish participants in the active control group will undergo the PROBECO program, designed by the Spanish Penitentiary Agency for various violent crimes. It aims to eradicate criminal behavior, reduce recidivism, and teach social skills. It has four phases. German participants will be placed in social therapeutic facilities for compulsory psychotherapy focused on relapse prevention.

PROBECO and social therapeutic establishments

The CBT program includes these core modules: A. ADHD Psychoeducation: Provides information on ADHD characteristics, neurobiology, treatments, and their efficacy. Shared with a significant other if available. B. Planning Skills and Distraction Management: Teaches time management, task prioritization, and distraction control techniques. C. Cognitive Restructuring: Based on Ellis' Rational Behavioral Emotive Therapy, it helps participants identify and modify irrational thoughts for better emotional regulation. D. Maintenance of Treatment Gains: Reviews progress, identifies risk factors, and develops action plans for post-treatment challenges.

Formulated-based cognitive behavioral therapy

Eligibility Criteria

Age18 Years+
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64), Older Adult (65+)

You may qualify if:

  • To have signed written informed consent to participate in the study
  • To be between 18 and 65 years of age
  • To meet the DSM-5 diagnostic criteria for ADHD (American Psychiatric Association, 2013)
  • To have been convicted of at least one crime under Spanish or German criminal law
  • To have been incarcerated for at least six months and three or fewer years since the completion of the conviction at the time of eligibility assessment.

You may not qualify if:

  • To have a severe personality disorder, psychotic disorder, or pervasive developmental disorder as their primary diagnosis, as the intervention would not meet their clinical needs
  • To have an IQ of 80 or less, as measured by a standardized IQ test (Raven et al., 1993), due to the complexity of the cognitive components in the CBT program
  • To have participated in a previous psychological intervention for ADHD;
  • To not be fluent in Spanish or German, depending on the study site.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Related Publications (1)

  • Lopez-Pinar C, Martinez-Sanchis S, Carbonell-Vaya E, Martinez-Raga J, Retz W. Formulation-based cognitive behavioral therapy compared to an active control and a waitlist in adult inmates with ADHD: study protocol for a randomized controlled trial. Trials. 2024 Sep 6;25(1):594. doi: 10.1186/s13063-024-08434-w.

MeSH Terms

Conditions

Attention Deficit Disorder with Hyperactivity

Condition Hierarchy (Ancestors)

Attention Deficit and Disruptive Behavior DisordersNeurodevelopmental DisordersMental Disorders

Study Officials

  • Carlos López-Pinar, Dr

    Universidad Europea de Valencia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized controlled trial
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Proffesor

Study Record Dates

First Submitted

October 6, 2023

First Posted

October 12, 2023

Study Start (Estimated)

September 1, 2027

Primary Completion (Estimated)

September 1, 2028

Study Completion (Estimated)

September 1, 2029

Last Updated

May 6, 2026

Record last verified: 2026-04

Data Sharing

IPD Sharing
Will not share