- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT05600881
Towards an Understanding of the Mechanism of Action of Methylphenidate in ADHD
Understanding the Mechanism of Action of Methylphenidate in ADHD: A Computational Psychiatry Approach
Approximately 1-in-20 children worldwide have Attention Deficit Hyperactivity Disorder (ADHD), a condition associated with disabling inattention, hyperactivity and impulsivity. These problems can manifest as poor inhibitory control (e.g., difficulty holding back impulsive actions) and atypical reward processing (e.g., failing to learn from adverse outcomes). Poorly treated ADHD is associated with negative academic and socioeconomic consequences.
This project aims to ultimately improve clinical management of children with ADHD. Methylphenidate, a stimulant medication, is used as the first-option pharmacological treatment for ADHD and often successfully reduces problem behaviour. Although Methylphenidate can be extremely effective, it does not work for every child. There is currently no 'objective' way (e.g., blood test or brain scan) to measure if a child is genuinely responding to Methylphenidate. Instead, clinicians must rely on reports from parents and teachers, an approach that is problematic and that often leads to delays in optimising ADHD treatment. The absence of a biological test to quantify Methylphenidate response is primarily because we do not understand exactly how Methylphenidate changes behaviours to produce the known beneficial effects. This lack of knowledge is despite the very common use of this medication.
This project will investigate the specific brain processes that are affected by Methylphenidate by recording brain activity and behaviour in children with ADHD (who have already been prescribed Methylphenidate as part of their clinical care) when they are on and off this medication. Brain activity will be recorded using two separate approaches, which are both non-invasive and routinely used in Trinity College Institute of Neuroscience: electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). Brain activity data will be collected while children with ADHD are performing two computer-game like tasks. One task measures the child's ability to hold back impulsive actions (inhibition) and the other assesses how they learn from positive and negative outcomes (reward processing). The data from the two tasks, the EEG recording and the fMRI scan will be analysed using advanced computer-modelling approaches to determine exactly how Methylphenidate changes behaviour.
This project is important because if we can understand the brain mechanisms affected by Methylphenidate, we can ultimately develop a computerised measure that will allow clinicians to predict whether a child is going to respond to this treatment or not. Such a measure would allow clinicians to treat ADHD more effectively and would result in children with ADHD experiencing faster relief from symptoms.
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
This project will investigate the specific brain processes that are affected by Methylphenidate by recording brain activity and behaviour in children with ADHD (who have already been prescribed Methylphenidate as part of their clinical care) when they are on and off this medication.
This is a quantitative double-blind placebo-controlled study investigating the acute effects of methylphenidate on brain activity using two non-invasive methods, EEG and fMRI.
Brain activity will be recorded using two separate approaches, which are both non-invasive and routinely used in Trinity College Institute of Neuroscience: electroencephalography (EEG) and functional magnetic resonance imaging (fMRI). Brain activity data will be collected while children with ADHD are performing two computer-game like tasks. One task measures the child's ability to hold back impulsive actions (inhibition) and the other assesses how they learn from positive and negative outcomes (reward processing). The data from the two tasks, the EEG recording, and the fMRI scan will be analysed using advanced computer-modelling approaches to determine exactly how Methylphenidate changes behaviour.
Study Type
Enrollment (Anticipated)
Contacts and Locations
Study Contact
- Name: Julia Paterson, BSc, BCompSci
- Phone Number: 0896164340
- Email: jpaterso@tcd.ie
Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Sampling Method
Study Population
Approximately 35 participants aged 14-17 years old will be recruited.
As previous research on ADHD has overwhelmingly focussed on cisgender men, this study will recruit people who are 'Assigned Female At Birth' (AFAB). This is to include cisgender women alongside those who may not identify with womanhood such as those who are non-binary but AFAB or transgender men who have not undergone hormonal/medical transition.
Description
Inclusion Criteria:
AFAB Clinical diagnosis of ADHD Must be able to swallow tablets Regular menstrual cycles Good response to medication
Exclusion Criteria:
Intellectual Disability Specific Learning Disabilities
Study Plan
How is the study designed?
Design Details
- Observational Models: Case-Only
- Time Perspectives: Cross-Sectional
Cohorts and Interventions
Group / Cohort |
Intervention / Treatment |
---|---|
ADHD
This study will recruit people aged 14-17 with ADHD who are 'Assigned Female At Birth' (AFAB).
This is to include cisgender women alongside those who may not identify with womanhood such as those who are non-binary but AFAB or transgender men who have not undergone hormonal/medical transition.
|
Participants will take their regular medication or a placebo (vitamin C)
|
What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
MRI
Time Frame: 2023-2026
|
structural, diffusion, functional
|
2023-2026
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Stop Signal Task
Time Frame: 2023-2026
|
behavioural measures
|
2023-2026
|
Other Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
EEG
Time Frame: 2023-2026
|
during SST
|
2023-2026
|
Collaborators and Investigators
Collaborators
Study record dates
Study Major Dates
Study Start (Anticipated)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Additional Relevant MeSH Terms
- Mental Disorders
- Attention Deficit and Disruptive Behavior Disorders
- Neurodevelopmental Disorders
- Attention Deficit Disorder with Hyperactivity
- Physiological Effects of Drugs
- Neurotransmitter Agents
- Molecular Mechanisms of Pharmacological Action
- Neurotransmitter Uptake Inhibitors
- Membrane Transport Modulators
- Dopamine Agents
- Dopamine Uptake Inhibitors
- Central Nervous System Stimulants
- Methylphenidate
Other Study ID Numbers
- MPH2022TCD
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
product manufactured in and exported from the U.S.
This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.
Clinical Trials on Attention Deficit Hyperactivity Disorder
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Cingulate TherapeuticsRecruitingPhase 3 Efficacy and Safety Laboratory Classroom Study in Pediatrics (6-12) With ADHD Using CTx-1301ADHD | Attention Deficit Hyperactivity Disorder | Attention Deficit Disorder With Hyperactivity | ADHD - Combined Type | Attention Deficit Hyperactivity Disorder Combined | Attention Deficit Hyper Activity | Attention-deficit HyperactivityUnited States
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Ornit CohenUnknownAttention Deficit Hyperactivity Disorder | Attention Deficit Disorder With Hyperactivity | Attention Deficit Disorder | Attention Deficit Disorders With Hyperactivity | Attention Deficit Hyperactivity DisordersIsrael
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Cingulate TherapeuticsPremier Research Group plcActive, not recruitingADHD | Attention Deficit Hyperactivity Disorder | ADHD - Combined Type | Attention Deficit Hyperactivity Disorder Combined | Attention Deficit Hyper Activity | Attention-deficit HyperactivityUnited States
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Children's National Research InstituteRecruitingADHD | Attention Deficit Hyperactivity Disorder | Attention-Deficit Hyperactivity Disorder | Attention Deficit Disorder | ADD | ADHD Predominantly Inattentive Type | ADHD - Combined Type | ADHD, Predominantly Hyperactive - Impulsive | Attention-Deficit Disorder in Adolescence | Attention-Deficit Hyperactivity...United States
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Fondation LenvalCompletedAttention Deficit Disorder With Hyperactivity | Attention Deficit Disorder Without HyperactivityFrance
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University Hospital Bispebjerg and FrederiksbergMental Health Services in the Capital Region, DenmarkRecruitingSleep Disturbance | Neurodevelopmental Disorders | Attention Deficit Hyperactivity Disorder | Attention Deficit Disorder | Attention-Deficit Hyperactivity Disorder, Unspecified Type | Attention-deficit Hyperactivity | Hyperkinetic Conduct DisorderDenmark
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Corium, Inc.Worldwide Clinical Trials; Premier Research Group plc; Almac; Prometrika, LLCRecruitingAttention Deficit/Hyperactivity DisorderUnited States
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Corium, Inc.Premier Research Group plc; Almac; Prometrika, LLCActive, not recruitingAttention Deficit/Hyperactivity DisorderUnited States
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Massachusetts General HospitalShire Human Genetic Therapies, Inc.Active, not recruitingAttention Deficit/Hyperactivity DisorderUnited States
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Ataturk UniversityCompletedAttention-deficit/Hyperactivity DisorderTurkey
Clinical Trials on Methylphenidate
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University of ArkansasCompleted
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Mahidol UniversityNot yet recruiting
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Massachusetts General HospitalFood and Drug Administration (FDA); Center for Psychiatry And Behavioral Medicine...Completed
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Florida International UniversityNational Institute of Mental Health (NIMH)CompletedAttention Deficit Disorder With HyperactivityUnited States
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Ironshore Pharmaceuticals and Development, IncCompletedAttention Deficit Hyperactivity DisorderUnited States
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Boston Children's HospitalNational Institute of Mental Health (NIMH)CompletedEpilepsy | Attention Deficit Disorder With HyperactivityUnited States
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Massachusetts General HospitalMcNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.Completed
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Massachusetts General HospitalMcNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.Completed
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Milton S. Hershey Medical CenterChildren's Miracle NetworkTerminatedBehavioral Insomnia of Childhood | Attention Deficit Disorder With HyperactivityUnited States
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Massachusetts General HospitalMcNeil Consumer & Specialty Pharmaceuticals, a Division of McNeil-PPC, Inc.CompletedAttention Deficit Hyperactivity DisorderUnited States