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Showing 1–24 of 857 matching trials from the live ClinicalTrials.gov search.
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Filters: Condition: Attention Deficit/ Hyperactivity Disorder Clear all
Completed Phase 3 Interventional Results available

Use of N-Acetylcysteine (NAC) in Fingernail Biting

NCT01993849
View directory record Official record
Conditions
Onychophagia
Interventions
N-Acetylcysteine (NAC), Placebo
Drug · Other
Lead sponsor
Kevin Gray, MD
Other
Eligibility
18 Years to 30 Years
Enrollment
23 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2015
U.S. locations
1
States / cities
Charleston, South Carolina
Source: ClinicalTrials.gov public record
Updated Oct 2, 2018 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Not applicable Interventional Accepts healthy volunteers

A Statewide Trial to Compare Three Training Models for Implementing an Evidence-based Treatment (EBT)

NCT02543359
View directory record Official record
Conditions
Training of Mental Health Professionals, Disruptive Behavior Disorders
Interventions
Training Models of PCIT, Parent-Child Interaction Therapy (PCIT) Treatment
Behavioral
Lead sponsor
West Virginia University
Other
Eligibility
1 Year and older
Enrollment
648 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2017
U.S. locations
1
States / cities
Pittsburgh, Pennsylvania
Source: ClinicalTrials.gov public record
Updated May 2, 2018 · Synced Sep 2, 2026, 9:27 AM EDT
Active, not recruiting Not applicable Interventional

Flashed Light Therapy for Adolescents With ADHD and Delayed Sleep Timing

NCT06036420
View directory record Official record
Conditions
ADHD
Interventions
Flashed Light Therapy, Videoconference-delivered Cognitive Behavioral Therapy
Device · Behavioral
Lead sponsor
University of California, Los Angeles
Other
Eligibility
14 Years to 17 Years
Enrollment
6 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Not applicable Interventional Results available

Transcranial Magnetic Stimulation for Attention Deficit/Hyperactivity Disorder (ADHD)

NCT03663179
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity (ADHD)
Interventions
Transcranial Magnetic Stimulation (TMS), Sham Transcranial Magnetic Stimulation (Sham TMS)
Device
Lead sponsor
University of Pennsylvania
Other
Eligibility
18 Years to 65 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Aug 4, 2022 · Synced Sep 2, 2026, 9:27 AM EDT
Not listed Phase 2 Interventional Accepts healthy volunteers

Preventing Behavior Problems in Children With ADHD

NCT00057668
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Multi-Setting Early Intervention, Community Intervention
Behavioral
Lead sponsor
Lehigh University
Other
Eligibility
3 Years to 5 Years
Enrollment
200 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2001 – 2006
U.S. locations
1
States / cities
Bethlehem, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Nov 18, 2013 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 1 Interventional

Phase I Single Dose, Open-Label Pharmacokinetic Study and Single-Blind, Placebo-Controlled Dose Escalation Study of NFC-1 in Adolescents With Attention-Deficit Hyperactivity Disorder

NCT02286817
View directory record Official record
Conditions
Attention-deficit Hyperactivity Disorder (ADHD)
Interventions
NFC-1
Drug
Lead sponsor
Aevi Genomic Medicine, LLC, a Cerecor company
Industry
Eligibility
12 Years to 17 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Oct 20, 2025 · Synced Sep 2, 2026, 9:27 AM EDT
Terminated Phase 2 Interventional

A Phase 2 Randomized Double-Blind, Parallel, Adaptive-Design, Clinical Trial to Evaluate the Safety and Efficacy of NRCT-101SR With NRCT-202XR Compared to NRCT-202XR Alone in Subjects With Attention-Deficit/Hyperactivity Disorder

NCT06673368
View directory record Official record
Conditions
ADHD
Interventions
NRCT-101SR, NRCT-202XR
Drug
Lead sponsor
Neurocentria, Inc.
Industry
Eligibility
13 Years to 17 Years
Enrollment
2 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025
U.S. locations
5
States / cities
Maitland, Florida • Decatur, Georgia • Savannah, Georgia + 2 more
Source: ClinicalTrials.gov public record
Updated Jan 14, 2026 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Not applicable Interventional

Open Trial of a Program to Support Parents of Children With Attention-deficit/Hyperactivity Disorder (ADHD)

NCT04636216
View directory record Official record
Conditions
ADHD
Interventions
COPE parent training
Behavioral
Lead sponsor
Florida International University
Other
Eligibility
5 Years to 13 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2021
U.S. locations
1
States / cities
Amherst, New York
Source: ClinicalTrials.gov public record
Updated Oct 27, 2021 · Synced Sep 2, 2026, 9:27 AM EDT
Terminated Not applicable Interventional Results available

Effectiveness of the Quotient® ADHD Assessment in a System of Care

NCT02094612
View directory record Official record
Conditions
Attention Deficit and Disruptive Behavior Disorders, Attention Deficit Disorder With Hyperactivity
Interventions
Quotient®, Usual Clinic ADHD Care
Device · Behavioral
Lead sponsor
Kaiser Permanente
Other
Eligibility
6 Years to 12 Years
Enrollment
207 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
3
States / cities
Folsom, California • Roseville, California • Walnut Creek, California
Source: ClinicalTrials.gov public record
Updated Jul 16, 2017 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 4 Interventional Results available

An Open-Label Study of Naltrexone in Adults With Attention Deficit Hyperactivity Disorder.

NCT01873729
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Naltrexone
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
3 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jan 12, 2017 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Not applicable Interventional Results available

Behavioral Treatment, Drug Treatment, and Combined Treatment for Attention Deficit Hyperactivity Disorder (ADHD)

NCT00050622
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Methylphenidate 0.15 mg/kg, Low-Intensity BMOD, Methylphenidate 0.3 mg/kg, Placebo, Methylphenidate 0.6 mg/kg, High Intensity BMOD
Drug · Behavioral
Lead sponsor
Florida International University
Other
Eligibility
5 Years to 12 Years
Enrollment
154 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2001 – 2005
U.S. locations
2
States / cities
Miami, Florida • Buffalo, New York
Source: ClinicalTrials.gov public record
Updated Sep 29, 2016 · Synced Sep 2, 2026, 9:27 AM EDT
Recruiting Phase 1 Interventional

Methylphenidate to Address Attention and Executive Deficits Among Children With Sickle Cell Disease

NCT07226219
View directory record Official record
Conditions
Sickle Cell Disease, Executive Dysfunction, Cognitive Impairment, Attention Deficit/Hyperactivity Disorder (ADHD)
Interventions
Extended-Release Methylphenidate
Drug
Lead sponsor
St. Jude Children's Research Hospital
Other
Eligibility
8 Years to 17 Years
Enrollment
72 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
1
States / cities
Memphis, Tennessee
Source: ClinicalTrials.gov public record
Updated Jul 5, 2026 · Synced Sep 2, 2026, 9:27 AM EDT
Enrolling by invitation Not applicable Interventional

Mindfulness ADHD Intervention

NCT07037030
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
Guided deep breathing
Behavioral
Lead sponsor
Boston Children's Hospital
Other
Eligibility
7 Years to 11 Years
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026
U.S. locations
1
States / cities
Brookline, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 30, 2026 · Synced Sep 2, 2026, 9:27 AM 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 2, 2026, 9:27 AM EDT
Terminated Not applicable Interventional

ADHD/Me Bibliotherapy Study

NCT03620344
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
ADH-Me Book and ADHD Informational Brochure, ADHD Informational Brochure Only
Other
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
7 Years to 10 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 26, 2020 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 1 Interventional

Effects of Using Betahistine to Treat Adults With Attention Deficit Hyperactivity Disorder

NCT00829881
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Betahistine Hydrochloride, Placebo Capsule
Drug
Lead sponsor
P2D, Inc.
Industry
Eligibility
22 Years to 55 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Sep 25, 2013 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Not applicable Interventional Results available

Virtual Reality to Improve Social Perspective Taking

NCT03927612
View directory record Official record
Conditions
Conduct Disorder, Child, Adolescent, Attention Deficit and Disruptive Behavior Disorders, Child Behavior Disorders, Virtual Reality, Social Perception, Magnetic Resonance Imaging
Interventions
Virtual reality perspective taking training, Virtual reality control perspective
Device
Lead sponsor
Indiana University
Other
Eligibility
9 Years to 12 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2022
U.S. locations
1
States / cities
Indianapolis, Indiana
Source: ClinicalTrials.gov public record
Updated Jun 27, 2023 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 3 Interventional Results available

Safety and Tolerability Study of SPD489 in Preschool Children Aged 4-5 Years, Diagnosed With Attention-deficit/Hyperactivity Disorder

NCT02466386
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
SPD489
Drug
Lead sponsor
Shire
Industry
Eligibility
4 Years to 5 Years
Enrollment
113 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2020
U.S. locations
50
States / cities
Dothan, Alabama • Little Rock, Arkansas • Imperial, California + 41 more
Source: ClinicalTrials.gov public record
Updated Mar 4, 2021 · Synced Sep 2, 2026, 9:27 AM EDT
Terminated Phase 2 Interventional Results available

Exploratory fMRI Study on the Treatment for Impulsive Aggression in Children With ADHD

NCT03638466
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder (ADHD), Impulsive Aggression
Interventions
Functional Magnetic Resonance Imaging (fMRI), Magnetic Resonance Spectroscopy (MRS), Point Subtraction Aggression Paradigm (PSAP) Task, SPN-810, Placebo
Diagnostic Test · Behavioral · Drug
Lead sponsor
Supernus Pharmaceuticals, Inc.
Industry
Eligibility
8 Years to 12 Years
Enrollment
7 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2019
U.S. locations
3
States / cities
Lakeland, Florida • Maitland, Florida • Tampa, Florida
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Sep 2, 2026, 9:27 AM EDT
Withdrawn Phase 4 Interventional

Efficacy of Atomoxetine for ADHD in Adolescents and Young Adults With SUD

NCT01207622
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Substance Use Disorder
Interventions
Atomoxetine, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
15 Years to 30 Years
Healthy volunteers
Healthy volunteers not accepted
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Mar 4, 2013 · Synced Sep 2, 2026, 9:27 AM EDT
Enrolling by invitation Not applicable Interventional Accepts healthy volunteers

Implementation Strategies for Caregiver and Teacher Use of Behavioral Interventions: Aim 2

NCT07321327
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder Symptoms
Interventions
Positive Behavior Management Toolkit for Caregivers, Positive Behavioral Management Toolkit for Teachers
Behavioral
Lead sponsor
Children's Hospital of Philadelphia
Other
Eligibility
4 Years and older
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2026 – 2027
U.S. locations
1
States / cities
Philadelphia, Pennsylvania
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 2 Interventional

Methylphendidate Treatment of Cocaine Dependent Patients With Attention Deficit Hyperactivity Disorder - 3

NCT00015054
View directory record Official record
Conditions
Cocaine-Related Disorders
Interventions
Methylphenidate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 50 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 1999
U.S. locations
1
States / cities
Cincinnati, Ohio
Source: ClinicalTrials.gov public record
Updated Jan 15, 2017 · Synced Sep 2, 2026, 9:27 AM EDT
Completed Phase 4 Interventional

A Double-Blind Comparison of Galantamine HBr and Placebo in Adults With Attention Deficit Hyperactivity Disorder

NCT00181675
View directory record Official record
Conditions
ADHD
Interventions
galantamine HBr
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 58 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2003
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 22, 2010 · Synced Sep 2, 2026, 9:27 AM EDT
Not listed Phase 1 Interventional

Technology-Enhanced Executive Functioning Intervention for ADHD

NCT04729439
View directory record Official record
Conditions
ADHD, 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 Disorder Symptoms, Attention-Deficit Hyperactivity Disorder
Interventions
Homework Organization and Planning Skills (HOPS) Intervention, Digital Health Application (Online Platform) for Encouraging Skills Practice
Behavioral · Device
Lead sponsor
Children's National Research Institute
Other
Eligibility
11 Years to 14 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Feb 20, 2023 · Synced Sep 2, 2026, 9:27 AM EDT