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Showing 25–48 of 24 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Attention Deficit Disorder Clear all
Recruiting Not applicable Interventional Accepts healthy volunteers

Investigating Mediodorsal Thalamus Representations Underlying Human Cognitive Flexibility

NCT07217652
View directory record Official record
Conditions
Schizophrenia, Attention Deficit Disorder With Hyperactivity (ADHD)
Interventions
High-resolution fMRI during working memory, cognitive control, and decision-making tasks
Other
Lead sponsor
Kai Hwang
Other
Eligibility
18 Years to 35 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2025 – 2030
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Feb 12, 2026 · Synced Jul 21, 2026, 11:36 PM EDT
Completed No phase listed Observational

Studies of Measures of Attention

NCT00776737
View directory record Official record
Conditions
Attention Deficit Disorder, Attention Deficit Hyperactivity Disorder
Interventions
Not listed
Lead sponsor
National Institute on Deafness and Other Communication Disorders (NIDCD)
NIH
Eligibility
6 Years to 60 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2011
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 1, 2017 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Safety and Efficacy of GTS21 in Adults With Attention-deficit Hyperactivity Disorder

NCT00419445
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
GTS21/Placebo
Drug
Lead sponsor
CoMentis
Industry
Eligibility
18 Years to 55 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
2
States / cities
Washington D.C., District of Columbia • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Sep 9, 2010 · Synced Jul 21, 2026, 11:36 PM EDT
Terminated Phase 2 Interventional

Dopamine Receptor Imaging to Predict Response to Stimulant Therapy in Chronic TBI

NCT02148783
View directory record Official record
Conditions
Traumatic Brain Injury
Interventions
methylphenidate, Placebo
Drug
Lead sponsor
Uniformed Services University of the Health Sciences
Federal
Eligibility
18 Years to 55 Years
Enrollment
11 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 3, 2018 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 2 Interventional

Comparing School Based Interventions for Adolescents With Attention Deficit Hyperactivity Disorder

NCT00947973
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Challenging Horizons Program (CHP) after-school model, Challenging Horizons Program (CHP) consultation model
Behavioral
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
11 Years to 15 Years
Enrollment
315 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
2
States / cities
Athens, Ohio • Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Dec 15, 2016 · Synced Jul 21, 2026, 11:36 PM EDT
Enrolling by invitation No phase listed Observational

An Investigational Study Examining the Efficacy of QbMobile in Treatment Monitoring in Individuals With ADHD

NCT07217977
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity (ADHD), Attention Deficit Disorder (ADD)
Interventions
observational study
Other
Lead sponsor
Qbtech AB
Industry
Eligibility
6 Years to 60 Years
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2026
U.S. locations
7
States / cities
Mobile, Alabama • San Jose, California • Largo, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated May 5, 2026 · Synced Jul 21, 2026, 11:36 PM EDT
Not yet recruiting No phase listed Observational

Psychotherapy for Irritability in Youth: Comparing Active Treatment to Nonactive Psychoeducation Supportive Psychotherapy

NCT07640802
View directory record Official record
Conditions
Irritability, Disruptive Mood Dysregulation Disorder, Oppositional Defiant Disorder, Attention Deficit Hyperactivity Disorder
Interventions
Psychotherapy
Behavioral
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
8 Years to 17 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2037
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 21, 2026, 11:36 PM EDT
Completed No phase listed Observational

Attention-Deficit/Hyperactivity Disorder (ADHD) Brain Activity Changes to Psychostimulants

NCT01310439
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Not listed
Lead sponsor
Hartford Hospital
Other
Eligibility
13 Years to 50 Years
Enrollment
38 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2010
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated Mar 7, 2011 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Not applicable Interventional

Organizational Skills Training for Children With Attention Deficit Hyperactivity Disorder

NCT00381407
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Organizational Skills Training, Contingency management (CM)
Behavioral
Lead sponsor
NYU Langone Health
Other
Eligibility
8 Years to 11 Years
Enrollment
157 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2011
U.S. locations
2
States / cities
New York, New York • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Apr 18, 2013 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Pharmacokinetics of HLD200 in Children and Adolescents With ADHD

NCT01907360
View directory record Official record
Conditions
Attention-Deficit Hyperactivity Disorder
Interventions
HLD200 (methylphenidate hydrochloride)
Drug
Lead sponsor
Ironshore Pharmaceuticals and Development, Inc
Other
Eligibility
6 Years to 17 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013
U.S. locations
1
States / cities
Las Vegas, Nevada
Source: ClinicalTrials.gov public record
Updated Dec 22, 2021 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 3 Interventional

Effect of Working Memory Training on ADHD Brain Function

NCT02151396
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder (Combined-subtype)
Interventions
Working memory training, Functional magnetic resonance imaging (fMRI)
Behavioral · Device
Lead sponsor
Hartford Hospital
Other
Eligibility
13 Years to 17 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2013
U.S. locations
1
States / cities
Hartford, Connecticut
Source: ClinicalTrials.gov public record
Updated May 29, 2014 · Synced Jul 21, 2026, 11:36 PM EDT
Not yet recruiting No phase listed Observational

Role of Theta Frequency Oscillations in Proactive and Reactive Control Processes in Youth With Attention Deficit Hyperactivity Disorder (ADHD) and Obsessive Compulsive Disorder (OCD)

NCT07566468
View directory record Official record
Conditions
ADHD, Obsessive Compulsive Disorder (OCD), Healthy Volunteer
Interventions
Not listed
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
10 Years to 17 Years
Enrollment
110 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2029
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 20, 2026 · Synced Jul 21, 2026, 11:36 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 Jul 21, 2026, 11:36 PM EDT
Completed Phase 2 Interventional

A Safety and Efficacy Study of ABT-089 in Children With Attention-Deficit/Hyperactivity Disorder (ADHD)

NCT00528697
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder
Interventions
ABT-089, atomoxetine, placebo
Drug
Lead sponsor
AbbVie (prior sponsor, Abbott)
Industry
Eligibility
6 Years to 12 Years
Enrollment
278 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
20
States / cities
Little Rock, Arkansas • El Centro, California • Boulder, Colorado + 17 more
Source: ClinicalTrials.gov public record
Updated Jan 28, 2013 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Not applicable Interventional

Integrated Parent Training for Treating Depression in Mothers of Children With Attention Deficit Hyperactivity Disorder

NCT00316290
View directory record Official record
Conditions
Depression, Attention Deficit Disorder With Hyperactivity
Interventions
Integrated Parent Training, Behavioral Parent Training
Behavioral
Lead sponsor
University of Maryland, College Park
Other
Eligibility
6 Years and older
Enrollment
98 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2010
U.S. locations
1
States / cities
College Park, Maryland
Source: ClinicalTrials.gov public record
Updated May 10, 2023 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Not applicable Interventional Results available

Cognitive Training Trial

NCT01133418
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Computerized Progressive Attention Training, Sham Comparator Cognitive Training
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 12 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2016
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated May 29, 2017 · Synced Jul 21, 2026, 11:36 PM EDT
Not yet recruiting Not applicable Interventional Accepts healthy volunteers

Brief Intervention Addressing Stigma Among Parents of Children With Mental Health Problems

NCT07594730
View directory record Official record
Conditions
Depression Disorders, ADHD, Substance Abuse, Social Stigma, Help-Seeking Behavior, Caregiver Burden
Interventions
Brief video
Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
25 Years to 50 Years
Enrollment
1,600 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Jun 29, 2026 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 3 Interventional Results available

Tolerability and Efficacy of AM and PM Once Daily Dosing With Extended-release Guanfacine Hydrochloride in Children 6-12 With Attention-Deficit/Hyperactivity Disorder (ADHD) (The ADHD Tempo Study)

NCT00997984
View directory record Official record
Conditions
Attention-Deficit/Hyperactivity Disorder
Interventions
extended-release guanfacine hydrochloride (SPD503), placebo, extended-release guanfacine hydrochloride
Drug
Lead sponsor
Shire
Industry
Eligibility
6 Years to 12 Years
Enrollment
340 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2010
U.S. locations
42
States / cities
Little Rock, Arkansas • El Centro, California • Rolling Hills Estates, California + 38 more
Source: ClinicalTrials.gov public record
Updated Jun 7, 2021 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Not applicable Interventional Results available

Neuroimaging of Diet in ADHD: Phase I

NCT01862484
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Restricted Diet, Ruse Diet
Dietary Supplement
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
9 Years to 12 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Mar 12, 2015 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 3 Interventional

Clonidine in Attention Deficit Hyperactivity Disorder (ADHD) in Children

NCT00031395
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
clonidine, methylphenidate, placebo
Drug · Other
Lead sponsor
University of Cincinnati
Other
Eligibility
7 Years to 12 Years
Enrollment
122 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1999 – 2007
U.S. locations
4
States / cities
Buffalo, New York • Rochester, New York • Cincinnati, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated May 20, 2009 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 4 Interventional Results available

Response Variability in Children With Attention Deficit Hyperactivity Disorder (ADHD)

NCT01238822
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Methylphenidate, placebo
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 11 Years
Enrollment
96 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Apr 3, 2012 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 2 Interventional

Safety and Efficacy of SPD465 in Adults With ADHD

NCT00202605
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Neutral salts of dextroamphetamine sulfate, USP, amphetamine sulfate, USP, d-amphetamine saccharate, d,I-amphetamine aspartate monohydrate
Drug
Lead sponsor
Shire
Industry
Eligibility
18 Years to 55 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2006
U.S. locations
4
States / cities
Little Rock, Arkansas • Irvine, California • Las Vegas, Nevada + 1 more
Source: ClinicalTrials.gov public record
Updated Jun 23, 2021 · Synced Jul 21, 2026, 11:36 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Parents at the Center: Information Management in ADHD - Clinical Trial

NCT00543257
View directory record Official record
Conditions
Health Literacy, Attention Deficit Disorder With Hyperactivity, Computer Literacy, Information Management, Parents
Interventions
Use of paper forms to write down information, Computer
Other
Lead sponsor
Boston Children's Hospital
Other
Eligibility
18 Years and older
Enrollment
194 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2014
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 5, 2017 · Synced Jul 21, 2026, 11:36 PM EDT
Completed Phase 1Phase 2 Interventional Results available

Improving Sleep and Daytime Functioning Among Children Diagnosed With Attention Deficit Hyperactivity Disorder (ADHD)

NCT00867451
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Sleep Intervention, Melatonin
Behavioral · Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 12 Years
Enrollment
8 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2011
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Mar 15, 2012 · Synced Jul 21, 2026, 11:36 PM EDT