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Showing 1–24 of 1,004 matching trials from the live ClinicalTrials.gov search.
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Completed No phase listed Observational

PET Scanning of Adults With Attention Deficit Hyperactivity Disorder (ADHD)

NCT00397748
View directory record Official record
Conditions
Volunteer, Attention Deficit Hyperactivity Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
18 Years to 55 Years · Male only
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2012
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 15, 2019 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 4 Interventional

A Study of Combination Therapy in Children With ADHD

NCT01940978
View directory record Official record
Conditions
ADHD, Attention Deficit Hyperactivity Disorder, Attention Deficit Disorder With Hyperactivity, Mental Disorders Diagnosed in Childhood, Attention Deficit and Disruptive Behavior Disorders
Interventions
Methylphenidate ER, Cyproheptadine
Drug
Lead sponsor
Douglas Sears
Individual
Eligibility
6 Years to 12 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Van Nuys, California
Source: ClinicalTrials.gov public record
Updated Apr 9, 2015 · Synced Sep 25, 2026, 11:03 PM EDT
Terminated No phase listed Observational Accepts healthy volunteers

System for Determining Ideal Drug Doses for ADHD - Stages 1 and 2

NCT03523663
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
no intervention. measure eye movement data
Other
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
8 Years to 12 Years
Enrollment
46 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2019
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Dec 9, 2021 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 1Phase 2 Interventional Results available

CTx-1301 Comparative Bioavailability Study

NCT04138498
View directory record Official record
Conditions
ADHD
Interventions
Dexmethylphenidate 5 Mg Oral Capsule, Extended Release, Dexmethylphenidate 6.25 mg Tablet, Dexmethylphenidate 40 Mg Oral Capsule, Extended Release, Dexmethylphenidate 50 mg Tablet
Drug
Lead sponsor
Cingulate Therapeutics
Industry
Eligibility
18 Years to 55 Years
Enrollment
45 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019 – 2020
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Apr 7, 2021 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional

OT Intervention Via Telehealth for Children With ASD and ADHD

NCT03957993
View directory record Official record
Conditions
Autism Spectrum Disorder, Attention Deficit Hyperactivity Disorder
Interventions
Occupational Therapy via Telehealth, Standard of Care Occupational Therapy
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
4 Years to 18 Years
Enrollment
44 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 15, 2020 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional

Ongoing Tai Chi Training for Children With ADHD

NCT03434509
View directory record Official record
Conditions
ADHD
Interventions
Continuous Tai Chi and Mindful Movement classes
Other
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
8 Years to 15 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2026
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 1, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Withdrawn Early Phase 1 Interventional

Relapse Prevention in Stimulant Use Disorder

NCT04553263
View directory record Official record
Conditions
Stimulant Use, Relapse, Cognitive Function, ADHD
Interventions
Contrave 8Mg-90Mg Extended-Release Tablet, Bupropion
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 65 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2025
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Sep 21, 2023 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 3 Interventional Results available

Open-label Long-Term Safety and Efficacy of SPN-812 (Viloxazine Extended-release Capsule) in Adults With ADHD

NCT04143217
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder
Interventions
SPN-812
Drug
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 65 Years
Enrollment
159 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
38
States / cities
Beverly Hills, California • Garden Grove, California • Los Alamitos, California + 33 more
Source: ClinicalTrials.gov public record
Updated Feb 12, 2024 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 4 Interventional Results available

Prevention of Cigarette Smoking in Attention Deficit Hyperactivity Disorder (ADHD) Youth With Concerta

NCT00181714
View directory record Official record
Conditions
ADHD
Interventions
methylphenidate HCl (Concerta)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
12 Years to 17 Years
Enrollment
203 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2011
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated May 6, 2013 · Synced Sep 25, 2026, 11:03 PM EDT
Not listed Not applicable Interventional

VestibulOTherapy: Vestibular Impact on Learning

NCT05793216
View directory record Official record
Conditions
Vestibular Disorder, Educational Problems, Attention Deficit Disorder
Interventions
VestibulOTherapy
Behavioral
Lead sponsor
VestibulOTherapy
Industry
Eligibility
6 Years to 10 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023
U.S. locations
1
States / cities
La Crosse, Wisconsin
Source: ClinicalTrials.gov public record
Updated Mar 30, 2023 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 2 Interventional

Classroom Study to Assess Efficacy and Safety of MTS in Pediatric Patients Aged 6-12 With ADHD

NCT00466791
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Methylphenidate Transdermal System
Drug
Lead sponsor
Noven Therapeutics
Industry
Eligibility
6 Years to 12 Years
Enrollment
93 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Jun 24, 2015 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional Results available

Communication to Improve Shared Decision-Making in ADHD

NCT02716324
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder
Interventions
Care Manager CM), ADHD Portal
Behavioral · Other
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
5 Years to 12 Years
Enrollment
303 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2018
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 24, 2019 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Medication Integration in Treatment of Comorbid Adolescent Substance Users/Attention Deficit Hyperactivity Disorder

NCT01369459
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Attention Deficit Disorder
Interventions
MIP Protocol
Behavioral
Lead sponsor
The National Center on Addiction and Substance Abuse at Columbia University
Other
Eligibility
13 Years to 17 Years
Enrollment
14 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2011 – 2014
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Aug 4, 2015 · Synced Sep 25, 2026, 11:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Reliability and Validity of the MINI International Neuropsychiatric Interview for Children and Adolescents (MINI-KID)

NCT00579267
View directory record Official record
Conditions
Major Depression, Mania, Anxiety Disorders, Psychotic Disorder, Alcohol Dependence, Drug Dependence, Eating Disorders, Suicidality, Dysthymia, ADHD, Tourettes Disorder, Conduct Disorder, Oppositional Defiant Disorder, Pervasive Developmental Disorder
Interventions
MINI-KID
Other
Lead sponsor
University of South Florida
Other
Eligibility
6 Years to 17 Years
Enrollment
230 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004 – 2008
U.S. locations
1
States / cities
Tampa, Florida
Source: ClinicalTrials.gov public record
Updated Feb 15, 2009 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 4 Interventional Results available

Neurobiological Basis of Response to Guanfacine Extended Release in Children and Adolescents With ADHD

NCT01709695
View directory record Official record
Conditions
ADHD, Attention Deficit Hyperactivity Disorder
Interventions
Guanfacine Hydrochloride XR, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
8 Years to 15 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 13, 2018 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional

Preschool ADHD On-line Behavioral Treatment

NCT04402528
View directory record Official record
Conditions
ADHD
Interventions
Behavioral tools integrated within mehealth for ADHD software
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
3 Years to 5 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jul 14, 2021 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional Results available

School-Based Mental Health Services for Urban Children

NCT00612690
View directory record Official record
Conditions
Conduct Disorder, Oppositional Defiant Disorder, Attention Deficit Disorder With Hyperactivity
Interventions
Community mental health consultation model program, Treatment as usual (TAU)
Behavioral
Lead sponsor
University of Illinois at Chicago
Other
Eligibility
5 Years to 12 Years
Enrollment
482 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Chicago, Illinois
Source: ClinicalTrials.gov public record
Updated Jun 3, 2014 · Synced Sep 25, 2026, 11:03 PM EDT
Recruiting Phase 4 Interventional

R61/33 - VR Study Phase 4

NCT07169760
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Meta Quest 3 VR Headset with noise cancelling headphones
Behavioral
Lead sponsor
Rutgers, The State University of New Jersey
Other
Eligibility
18 Years to 25 Years
Enrollment
252 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2030
U.S. locations
2
States / cities
Baton Rouge, Louisiana • New Brunswick, New Jersey
Source: ClinicalTrials.gov public record
Updated Jan 27, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Not listed Not applicable Interventional

Peer Professionals to Increase Capacity to Treat ADHD

NCT04238403
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders
Interventions
Behavioral Parent Training (MATCH Protocol)
Behavioral
Lead sponsor
New York University
Other
Eligibility
Up to 99 Years
Enrollment
15 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Feb 27, 2020 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Trial to Characterize Differences in Blood Levels of Different Lots of Centanafadine QD XR and to Understand the Effect of Food on Blood Levels

NCT07253441
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
CTN XR (TBM), CTN SR, CTN XR (Clin)
Drug
Lead sponsor
Otsuka Pharmaceutical Development & Commercialization, Inc.
Industry
Eligibility
18 Years to 55 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
2
States / cities
Lenexa, Kansas • Millcreek, Utah
Source: ClinicalTrials.gov public record
Updated Dec 10, 2025 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Phase 4 Interventional

The Effect of a Once Daily Dose of Atomoxetine (ATX) on ADHD-Related Insomnia in Children and Adolescents

NCT00566371
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Insomnia
Interventions
atomoxetine, placebo
Drug
Lead sponsor
Rhode Island Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Providence, Rhode Island
Source: ClinicalTrials.gov public record
Updated Aug 15, 2010 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Evaluation of a Lifestyle Medicine Practice

NCT03739034
View directory record Official record
Conditions
Chronic Lifestyle Related Disease, Diabetes, Overweight and Obesity, Dyslipidemias, Hypertension, Cardiovascular Diseases
Interventions
Lifestyle Medicine
Behavioral
Lead sponsor
Ohio University
Other
Eligibility
18 Years and older
Enrollment
71 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2022
U.S. locations
1
States / cities
Athens, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 9, 2022 · Synced Sep 25, 2026, 11:03 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Remote Training in Rural Schools

NCT05034198
View directory record Official record
Conditions
Behavior Disorders
Interventions
Coping Power Program (CPP), Cognitive behavioral therapy (CBT) for Anxiety Treatment in Schools (CATS), Check-in/Check-out (CI/CO)
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
18 Years to 99 Years
Enrollment
174 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2025
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 18, 2026 · Synced Sep 25, 2026, 11:03 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Study of Children at Risk for Disruptive Behavior Disorders

NCT00001233
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Child Behavior Disorders, Passive-Aggressive Personality Disorder
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
Not listed
Enrollment
900 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
1988 – 2000
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Mar 3, 2008 · Synced Sep 25, 2026, 11:03 PM EDT