Plain-English translation of NCT07634809 on ClinicalTrials.gov ↗ · Source last updated · Translation generated · How we translate trials
Researchers want to understand how ADHD medication works by measuring physical changes in the body—specifically, how your eyes move, how your pupils respond to light, and how your heart rate varies. This study will track these measurements before and after you start the medication to see if they connect to symptom improvement or side effects.
Right now, doctors don't have good objective ways to measure whether ADHD medication is working or causing problems beyond asking patients how they feel. This research aims to find simple, measurable signs in the body that could help doctors better understand and personalize treatment.
You likely qualify if…
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You will visit the clinic at least twice—once before starting the medication and once after—for non-invasive measurements. During each visit, researchers will track your eye movements while you look at a screen, measure how your pupils respond to light, and record your heart rate patterns using a monitor. These tests are painless and typically take under an hour. Your parents or guardians will be involved throughout.
AI-generated summary from trial data · Jun 11, 2026 · Not medical advice
Sweden
Collaborators
Region Västerbotten, Stockholm University
Enrollment target
~150 participants
Started
April 2026
Primary completion
November 2028
Age range
6 Years – 17 Years
Last updated on clinicaltrials.gov in June 2026.
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Central contact
Linda Halldner Henriksson, MD, PhD
Umeå University
Tell us you're interested and we'll help connect you with the research team. We'll walk you through what to expect first — no email needed to get started.