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Study identifier: NCT04781972 Synced from ClinicalTrials.gov · July 29, 2026
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Multimodal Brain Imaging of the Neural Effects of Methylphenidate in Patients With ADHD

Condition: ADHD - Combined Type  ·  Sponsor: Johns Hopkins University

PhasePhase 4
Planned participants30
Who can joinAll sexes, 6 Years to 40 Years
Healthy volunteersNo

About this study

The investigators' goal is to develop neuroimaging biomarkers to predict response to treatment with methylphenidate, which then can be used in the development of novel pharmacological treatments for attention-deficit/hyperactivity disorder (ADHD). The overall objective of this study is to measure the changes in task-related neural activity related to symptoms of ADHD (measured by functional MRI) and brain glutamate levels (measured by magnetic resonance spectroscopy, MRS) after treatment with methylphenidate (MPH). This will be a double-blind crossover of methylphenidate and placebo in adults with ADHD. Participants will complete neuropsychological testing along with fMRI and MRS scans after a single dose of each treatment.

This description comes directly from the study's public registry record.

Talk to the study team

Kristin L Bigos, PhD  ·  410-614-0453  ·  kbigos1@jhu.edu

Robyn Wiseman, BS  ·  304-551-3309  ·  rwisema5@jhmi.edu

Always discuss trial participation with your own doctor first.

Locations (1)

Johns Hopkins School of MedicineBaltimore, Maryland, United StatesRecruiting

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Source record: clinicaltrials.gov/study/NCT04781972