Plain-English translation of NCT03420339 on ClinicalTrials.gov ↗ · Source last updated ·
Phase 4 — The treatment has already been approved. Researchers are tracking how it works in a large number of people over time.
This research study is looking at how medications (the kind your child may already be taking for ADHD) affect disruptive behaviors like aggression, refusal to listen, or tantrums. Researchers will observe your child during structured activities on visits when they take the medication and on visits when they don't, to see how the treatment impacts their behavior.
Many children with ADHD take medication to help with attention and focus, but doctors don't fully understand how these medications affect problem behaviors like aggression or defiance. This study aims to fill that gap so treatment can be better tailored to each child's needs.
You likely qualify if…
You likely don't qualify if…
You will attend 8 visits over several weeks (4 visits lasting about 2 hours each, then 4 visits lasting about 1 hour each). At each visit, your child will take part in activities designed to understand their preferences and how they respond to different situations. On some visits your child will take their regular medication before the activities begin, and on other visits they will skip that dose — this helps researchers compare how the medication affects behavior.
AI-generated summary from trial data · Jun 2, 2026 · Not medical advice
United States