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

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.

NCT Number	NCT07614867
Lead Sponsor	Karolinska Institutet
Conditions	Attention Deficit Disorder With or Without Hyperactivity (ADHD)
Enrollment	150 participants
Start Date	2026-08-01
Primary Completion	2029-06 (estimated)
Study Completion	2029-06 (estimated)
Updated on ClinicalTrials.gov	2026-08-05