Feasibility Study of Individual Cognitive Behavioral Therapy for Adult ADHD in Japan: Protocol for Multicenter Trial

This feasibility study evaluates a novel culturally-adapted individual CBT program for Japanese adults with ADHD over 24-28 weeks, including a 12-16 week intervention phase and 12-week follow-up. Primary outcomes assess feasibility via dropout rates, adverse events, and symptom changes measured by standardized rating scales, with secondary analysis of long-term treatment effects and quality of life.