Attention Deficit Hyperactivity Disorder Clinical Trials

81 recruitingLast updated: June 18, 2026

There are 81 actively recruiting attention deficit hyperactivity disorder clinical trials across 18 countries. Studies span Not Applicable, Phase 2, Phase 4, Phase 1, Phase 3. Top locations include Cincinnati, Ohio, United States, Boston, Massachusetts, United States, Baltimore, Maryland, United States. Updated daily from ClinicalTrials.gov.


Attention Deficit Hyperactivity Disorder Trials at a Glance

81 actively recruiting trials for attention deficit hyperactivity disorder are listed on ClinicalTrialsFinder across 6 cities in 18 countries. The largest study group is Not Applicable with 39 trials, with the heaviest enrollment activity in Cincinnati, Boston, and Baltimore. Lead sponsors running attention deficit hyperactivity disorder studies include Chinese University of Hong Kong, Otsuka Pharmaceutical Co., Ltd., and Children's Hospital Medical Center, Cincinnati.

Browse attention deficit hyperactivity disorder trials by phase

Treatments under study

About Attention Deficit Hyperactivity Disorder Clinical Trials

Looking for clinical trials for Attention Deficit Hyperactivity Disorder? There are currently 65 studies actively recruiting participants. Clinical trials offer access to new treatments before they are widely available, and every approved therapy in use today was first tested through a clinical trial.

Below you can browse trials, sign up for alerts when new Attention Deficit Hyperactivity Disorder trials open, and view eligibility criteria for each study. Each listing includes the study phase, locations, and enrollment details.

Frequently Asked Questions

Common questions about Attention Deficit Hyperactivity Disorder clinical trials

A clinical trial is a carefully designed research study that tests new medical treatments, drugs, devices, or approaches in human volunteers. Every approved medication and treatment available today was proven safe and effective through clinical trials.

All clinical trials are reviewed and approved by Institutional Review Boards (IRBs) — independent committees that evaluate patient safety. Trials follow strict protocols, and your health is monitored closely throughout. You can withdraw at any time.

Not necessarily. Many trials compare the new treatment against the current standard of care, meaning all participants receive active treatment. When placebos are used, they are typically combined with standard treatment, not given alone. The trial description will always specify the design.

Under the Affordable Care Act, most private insurers are required to cover routine patient care costs during a clinical trial. The sponsor typically covers the investigational treatment itself. Medicare also covers routine costs for qualifying trials.

Yes. Participation is completely voluntary. You can withdraw at any time, for any reason, without it affecting your access to standard medical care.

Each trial has specific eligibility criteria — including age, diagnosis, disease stage, prior treatments, and general health. Browse the trials listed above and check their eligibility sections. You can also contact the trial site directly to discuss your situation.

Showing 120 of 81 trials

Recruiting
Not Applicable

Smartphone-based Intervention for Young Adults With ADHD

Attention Deficit Hyperactivity Disorder (ADHD)Alcohol Use
Traci Kennedy70 enrolled1 locationNCT07654205
Recruiting
Not Applicable

Fronto-Parietal Transcranial Alternating Current Stimulation for ADHD in Children and Adolescents

Attention Deficit Hyperactivity Disorder
Central South University50 enrolled1 locationNCT07633275
Recruiting
Not Applicable

Motor Attention Training for Attention Deficit Hyperactivity Disorder (ADHD)

Attention Deficit Hyperactivity Disorder
University of Wisconsin, Madison145 enrolled1 locationNCT02688959
Recruiting
Phase 1

A Study to Test How BI 3031185 is Tolerated by People With Borderline Personality Disorder or Attention-deficit/Hyperactivity Disorder

Attention Deficit Hyperactivity DisorderBorderline Personality Disorder
Boehringer Ingelheim96 enrolled9 locationsNCT07001475
Recruiting
Phase 2

The Effects of Cannabigerol on Attention-Deficit/Hyperactivity Disorder

Attention Deficit Hyperactivity Disorder
University of Arkansas, Fayetteville76 enrolled1 locationNCT06115603
Recruiting
Phase 4

Biomarker Validation in Motor System Physiology in Attention Deficit Hyperactivity Disorder

Attention Deficit Hyperactivity Disorder Combined
Donald Gilbert, MD, MS, FAAN, FAAP214 enrolled2 locationsNCT04421248
Recruiting
Phase 1Phase 2

Cannabigerol Oil for Adolescents With ADHD (CAN-ADHD)

Attention Deficit Hyperactivity Disorder (ADHD)
Universidade do Sul de Santa Catarina60 enrolled1 locationNCT07592390
Recruiting
Not Applicable

Finding Alternatives to Standard Treatment for Attention-Deficit Hyperactivity Disorder

Attention Deficit Hyperactivity Disorder (ADHD)
University of Calgary30 enrolled1 locationNCT04532190
Recruiting
Not Applicable

Effects of Transcranial Photobiomodulation in ADHD

Attention Deficit Hyperactivity Disorder
University of Texas at Austin140 enrolled1 locationNCT07203092
Recruiting
Not Applicable

The Effect of Playful Physiotherapy Intervention

Autism Spectrum DisorderAttention Deficit Hyperactivity Disorder
University of Tartu25 enrolled1 locationNCT07466147
Recruiting
Not Applicable

Effects and Mechanisms of Transcranial Direct Current Stimulation Combined With Dialectical Behavior Therapy Skills Training in Adults With Attention-Deficit/Hyperactivity Disorder

Adult Attention Deficit Hyperactivity Disorder
Nanjing Medical University60 enrolled1 locationNCT07565402
Recruiting
Not Applicable

A Pilot Study of a Remote ADHD Monitoring Program

Attention Deficit Hyperactivity DisorderADHD
IDeA States Pediatric Clinical Trials Network36 enrolled2 locationsNCT06743425
Recruiting
Phase 4

An Open-Label Treatment With Randomization Observation, Investigator-Initiated Study, on the Duration and Efficacy of Jornay PM (Methylphenidate Hydrochloride Extended-Release Capsules) on Adult ADHD Symptoms and Executive Function and Emotional Regulation Throughout the Day Into Early Evening

Attention Deficit Hyperactivity Disorder
NYU Langone Health30 enrolled1 locationNCT06577779
Recruiting
Not Applicable

A Random Controlled Trial of Home-based Digital Therapy for Treating ADHD in Children

Attention Deficit Hyperactivity Disorder (ADHD)
Xinhua Hospital, Shanghai Jiao Tong University School of Medicine146 enrolled1 locationNCT07552909
Recruiting
Phase 1

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

Cognitive ImpairmentSickle Cell DiseaseAttention Deficit Hyperactivity Disorder (ADHD)+1 more
St. Jude Children's Research Hospital72 enrolled1 locationNCT07226219
Recruiting
Not Applicable

Attention Deficit Hyperactivity Disorder

Attention Deficit Hyperactivity DisorderBehavior HyperactiveBehavior Disorders
Nantes University Hospital80 enrolled3 locationsNCT06232226
Recruiting
Not Applicable

Characterization of Social Cognition Profiles in Children and Adolescents With Neurodevelopmental Disorders: a Clinical Study Using a Multidimensional Battery

Autism Spectrum DisorderNeurodevelopmental DisordersAttention Deficit Hyperactivity Disorder+1 more
Assistance Publique - Hôpitaux de Paris100 enrolled1 locationNCT07439276
Recruiting

Developing Brain, Impulsivity and Compulsivity

Autism Spectrum DisorderAttention Deficit Hyperactivity DisorderObsessive-Compulsive Disorder+2 more
National Institute of Mental Health (NIMH)1,100 enrolled1 locationNCT04631042
Recruiting

Pharmacokinetics, Pharmacodynamics, and Safety Profile of Understudied Drugs Administered to Children Per Standard of Care (POPS)

Heart FailurePainInsomnia+22 more
Duke University5,000 enrolled51 locationsNCT04278404
Recruiting
Not Applicable

Matching Assessment and Treatment for Children With Disruptive Behaviour and Their Parents

Attention Deficit Hyperactivity DisorderEmotional DisorderConduct Disorder+3 more
Centre for Addiction and Mental Health200 enrolled1 locationNCT06373484