Can talk therapy tame ADHD and cut crime behind bars?
NCT ID NCT06080373
First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study tests a special type of talk therapy (cognitive-behavioral therapy, or CBT) designed for adults with ADHD who are in prison. Researchers will compare it to a standard prison program and a waitlist. They want to see if the therapy reduces ADHD symptoms, depression, anxiety, and the chance of reoffending after release. About 111 inmates in Spain and Germany will take part.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- cognitive-behavioral therapy (CBT)
- What this could lead to
- If it works, this could provide an effective non-drug treatment for ADHD in prisoners, potentially reducing both symptoms and reoffending rates.
- What could go wrong
- This is an early-stage trial with only 111 participants, and prison settings make follow-up difficult. The therapy may not work better than existing programs.
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Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 111 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Sep 2027
An estimate. Start dates often move.
- Expected to finish
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Sep 2029
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * 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. Exclusion Criteria: * 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.
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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