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Evaluating Effects of Group-based CBT for Emotion Regulation in Adult ADHD (GEARS)

4 août 2026 mis à jour par: Elinor Eskilsson Strålin, Karolinska Institutet

Group-based Emotion Regulation Skills Training for Adults With ADHD: GEARS, a Quantitative and Qualitative Investigation of Treatment Effects

This study will evaluate if a specific treatment for emotion regulation in ADHD, GEARS, effectively reduces symptoms of emotional dysregulation. GEARS will be evaluated through a randomized controlled trial (RCT) and a qualitative interview study.

This project aims to investigate two main questions:

  1. Is GEARS an effective treatment for emotion regulation difficulties in adult ADHD patients?
  2. How do participants perceive the impact of completing the GEARS treatment? Study 1 investigates research question 1 through an RCT comparing GEARS to a passive control group. Data are collected using validated measures before and after treatment/waiting period, as well as at six and 12 months follow ups.

Sample size: 150 participants, ensuring sufficient statistical power to detect significant between-group differences, even with some attrition.

Study 2 examines the patients' perspectives on the treatment by interviewing 15-20 participants about their experience with GEARS. The interviews focus on GEARS' perceived impact. Interviews will be recorded, transcribed, and analyzed using thematic analysis to identify key recurring themes.

Aperçu de l'étude

Description détaillée

The trial will evaluate the GEARS manual. ADHD is one of the most common psychiatric diagnoses, with a growing demand for psychological treatment. Many adults seek help for impaired emotion regulation, yet evidence-based treatments are lacking. GEARS has shown promising results and addresses a critical need in psychiatric outpatient care. If proven effective in controlled studies, it could be widely implemented, enhancing functional outcomes in work and family life. Given the negative impact of emotion dysregulation, establishing evidence for this clinically developed and tested method is essential. Participants Inclusion criteria; (1) being diagnosed with ADHD according to DSM criteria, (2) age 18 years orabove, and (3) having identified problems with emotion regulation difficulties. Exclusion criteria: (1) diagnosis of intellectual disability, (2) diagnosis of autism (3) substance abuse, (4) severe mental illness (e.g., severe depression, anorexia) or comorbidity requiring clinical priority, (5) difficulties allocating time to participate due to social, academic or occupational circumstances hindering engagement in treatment, (6) other ongoing psychotherapy, and (7) difficulties accepting the group setting.

Treatment will take place within psychiatric outpatient clinics in regular care in Stockholm. Participants will be randomized to either start the intervention or to waitlist control. The GEARS is conducted in groups of around 8 participants led by two skilled therapist experienced in CBT and ADHD.

Inclusion criteria Treatment Method: GEARS is a new manual-based group treatment consisting of 14 weekly 2-hour sessions with eight participants and two group leaders. The group leaders, who are licensed psychologists or psychotherapists with CBT training and experience with this patient group, undergo training in the GEARS protocol prior to the start of treatment. The protocol is based on CBT with elements of DBT, ACT, and research on emotion theory and affect dysregulation in ADHD. The treatment is adapted to the needs of individuals with ADHD and designed to provide support so that executive difficulties do not become an obstacle to benefiting from the treatment.

In addition to the group sessions, each participant receives 30-60 minutes of coaching every other week with a group leader. The purpose is to support homework assignments, the application of treatment strategies in relation to individual challenges, and to strengthen the therapeutic process. Coaching sessions can take place on-site, via telephone, or via video.

The GEARS manual gives a clear agenda for the 14 group sessions and provides PowerPoint presentations, worksheets, and texts designed to increase understanding, acceptance, and regulation of emotions. The 14 sessions of the treatment are organized to cover the following themes:

Week 1: Introduction

Week 2: Mindfulness I + Acceptance

Week 3: Mindfulness II + The Normal Function of Emotions

Week 4: Mindfulness III + Emotional Awareness

Week 5: Primary and Secondary Emotions

Week 6: Self-reinforcement of Emotions / "Finished Behavior Analysis"

Week 7: Self-reinforcement of Emotions / "Finished Behavior Analysis"

Week 8: Impulse Control

Week 9: Emotional Control and Avoidance vs. Willingness and Acceptance

Week 10: Communication Skills

Week 11: Regulating Emotions Without Avoiding Them

Week 12: Valued Directions I + Relapse Prevention

Week 13: Valued Directions II

Week 14: Relapse Prevention / Termination

Measurements: Measures of emotion regulation and symptoms of ADHD, depression, anxiety and quality of life will be used to evaluate effects of treatment. Participants will be assessed pre, post and follow up at 6 and 12 months after treatment completion.

Type d'étude

Interventionnel

Inscription (Estimé)

150

Phase

  • N'est pas applicable

Contacts et emplacements

Cette section fournit les coordonnées de ceux qui mènent l'étude et des informations sur le lieu où cette étude est menée.

Coordonnées de l'étude

Lieux d'étude

      • Stockholm, Suède, 14650
        • Recrutement
        • Norra Stockholms Psykiatri
        • Contact:

Critères de participation

Les chercheurs recherchent des personnes qui correspondent à une certaine description, appelée critères d'éligibilité. Certains exemples de ces critères sont l'état de santé général d'une personne ou des traitements antérieurs.

Critère d'éligibilité

Âges éligibles pour étudier

  • Adulte
  • Adulte plus âgé

Accepte les volontaires sains

Non

La description

Inclusion Criteria:

  • being diagnosed with ADHD according to DSM criteria,
  • age 18 years or above, and
  • having identified problems with emotion regulation difficulties.

Exclusion Criteria:

  • diagnosis of intellectual disability,
  • diagnosis of autism
  • substance abuse,
  • severe mental illness (e.g., severe depression, anorexia) or comorbidity requiring clinical priority,
  • difficulties allocating time to participate due to social, academic or occupational circumstances hindering engagement in treatment,
  • other ongoing psychotherapy, and
  • difficulties accepting the group setting.

Plan d'étude

Cette section fournit des détails sur le plan d'étude, y compris la façon dont l'étude est conçue et ce que l'étude mesure.

Comment l'étude est-elle conçue ?

Détails de conception

  • Objectif principal: Traitement
  • Répartition: Randomisé
  • Modèle interventionnel: Affectation parallèle
  • Masquage: Aucun (étiquette ouverte)

Armes et Interventions

Groupe de participants / Bras
Intervention / Traitement
Expérimental: GEARS intervention group
Group Therapy for Improving Emotional Acceptance and Regulatory Skills in Adults with ADHD (GEARS)
The GEARS protocol is the first CBT based group therapy protocol describing an intervention designed specifically to treat emotion regulation in ADHD.
Aucune intervention: Control
Participants will wait for treatment for six months and provide data assessed at the same time points as the intervention group. Participants will receive treatment and be assessed after their treatment is completed but not at the follow ups.

Que mesure l'étude ?

Principaux critères de jugement

Mesure des résultats
Description de la mesure
Délai
Barkley Deficits in Executive Functioning Scale (B-DEFS) Deficits in emotion regulation subscale (DEFS-LF) : Self-regulation of Emotion using the subscale from the
Délai: From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Measures emotion regulation difficulties through 13 items rated from 1 ("Never or rarely") to 4 ("Very often") range: 13-52
From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Difficulties in Emotion Regulation Scale (DERS)
Délai: Assessment at pretreatment to post treatment at 15 week and after follow up at week 25. Follow up assessments at 6 and 12 months pat treatment end.
Measures symptoms of emotion regulation difficulties through 36 items rated in a five point scale, from 1(1= almost never) to 5, (5 = almost always) range 36-180.
Assessment at pretreatment to post treatment at 15 week and after follow up at week 25. Follow up assessments at 6 and 12 months pat treatment end.

Mesures de résultats secondaires

Mesure des résultats
Description de la mesure
Délai
The Hospital Anxiety and Depression Scale (HADS)
Délai: From pretreatment to end of treatment at 25 weeks
Measuring symptoms of anxiety and depression through 14 questions, rated 0-3, range 0-42.
From pretreatment to end of treatment at 25 weeks
ASRS
Délai: From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Measuring ADHD symptoms, 18 items rated 0 (0= never) to 4 (4= very often) range 0-72
From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Adult ADHD Quality of Life Scale (AAQoL)
Délai: From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Measures different aspects of everyday life functioning through 21 questions, rated from 1 (not at all) to 5 (very much), range 21- 105.
From pre-treatment to post treatment and follow up at 6 and 12 months past treatment end.
Barkley Deficits in Executive Functions Scale Short Form (BDEFS-SF)
Délai: up to 6 and 12 months past treatment end.
Measures executive functions in ADHD through 20 items rated from 1 (1= never or rarely) to 4 (very often) range 20-80.
up to 6 and 12 months past treatment end.

Collaborateurs et enquêteurs

C'est ici que vous trouverez les personnes et les organisations impliquées dans cette étude.

Les enquêteurs

  • Chercheur principal: Elinor Eskilsson Strålin, PhD, Department of Clinical Neuroscience, Karolinska Institutet (KI)

Dates d'enregistrement des études

Ces dates suivent la progression des dossiers d'étude et des soumissions de résultats sommaires à ClinicalTrials.gov. Les dossiers d'étude et les résultats rapportés sont examinés par la Bibliothèque nationale de médecine (NLM) pour s'assurer qu'ils répondent à des normes de contrôle de qualité spécifiques avant d'être publiés sur le site Web public.

Dates principales de l'étude

Début de l'étude (Réel)

1 août 2026

Achèvement primaire (Estimé)

1 juin 2029

Achèvement de l'étude (Estimé)

1 juin 2029

Dates d'inscription aux études

Première soumission

22 mai 2026

Première soumission répondant aux critères de contrôle qualité

22 mai 2026

Première publication (Réel)

29 mai 2026

Mises à jour des dossiers d'étude

Dernière mise à jour publiée (Réel)

5 août 2026

Dernière mise à jour soumise répondant aux critères de contrôle qualité

4 août 2026

Dernière vérification

1 août 2026

Plus d'information

Termes liés à cette étude

Informations sur les médicaments et les dispositifs, documents d'étude

Étudie un produit pharmaceutique réglementé par la FDA américaine

Non

Étudie un produit d'appareil réglementé par la FDA américaine

Non

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