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

4 augusti 2026 uppdaterad av: 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.

Studieöversikt

Detaljerad beskrivning

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.

Studietyp

Interventionell

Inskrivning (Beräknad)

150

Fas

  • Inte tillämpbar

Kontakter och platser

Det här avsnittet innehåller kontaktuppgifter för dem som genomför studien och information om var denna studie genomförs.

Studiekontakt

Studieorter

Deltagandekriterier

Forskare letar efter personer som passar en viss beskrivning, så kallade behörighetskriterier. Några exempel på dessa kriterier är en persons allmänna hälsotillstånd eller tidigare behandlingar.

Urvalskriterier

Åldrar som är berättigade till studier

  • Vuxen
  • Äldre vuxen

Tar emot friska volontärer

Nej

Beskrivning

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.

Studieplan

Det här avsnittet ger detaljer om studieplanen, inklusive hur studien är utformad och vad studien mäter.

Hur är studien utformad?

Designdetaljer

  • Primärt syfte: Behandling
  • Tilldelning: Randomiserad
  • Interventionsmodell: Parallellt uppdrag
  • Maskning: Ingen (Open Label)

Vapen och interventioner

Deltagargrupp / Arm
Intervention / Behandling
Experimentell: 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.
Inget ingripande: 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.

Vad mäter studien?

Primära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
Barkley Deficits in Executive Functioning Scale (B-DEFS) Deficits in emotion regulation subscale (DEFS-LF) : Self-regulation of Emotion using the subscale from the
Tidsram: 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)
Tidsram: 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.

Sekundära resultatmått

Resultatmått
Åtgärdsbeskrivning
Tidsram
The Hospital Anxiety and Depression Scale (HADS)
Tidsram: 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
Tidsram: 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)
Tidsram: 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)
Tidsram: 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.

Samarbetspartners och utredare

Det är här du hittar personer och organisationer som är involverade i denna studie.

Utredare

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

Studieavstämningsdatum

Dessa datum spårar framstegen för inlämningar av studieposter och sammanfattande resultat till ClinicalTrials.gov. Studieposter och rapporterade resultat granskas av National Library of Medicine (NLM) för att säkerställa att de uppfyller specifika kvalitetskontrollstandarder innan de publiceras på den offentliga webbplatsen.

Studera stora datum

Studiestart (Faktisk)

1 augusti 2026

Primärt slutförande (Beräknad)

1 juni 2029

Avslutad studie (Beräknad)

1 juni 2029

Studieregistreringsdatum

Först inskickad

22 maj 2026

Först inskickad som uppfyllde QC-kriterierna

22 maj 2026

Första postat (Faktisk)

29 maj 2026

Uppdateringar av studier

Senaste uppdatering publicerad (Faktisk)

5 augusti 2026

Senaste inskickade uppdateringen som uppfyllde QC-kriterierna

4 augusti 2026

Senast verifierad

1 augusti 2026

Mer information

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