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ClinicalTrials.gov public records Last synced Oct 17, 2026, 12:45 PM EDT

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Showing 145–168 of 269 matching trials from the live ClinicalTrials.gov search.
Filters: Intervention: methylphenidate HCl Clear all
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 30, 2016 · Synced Oct 17, 2026, 12:45 PM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Stimulant Effects on Disruptive Behavior

NCT03420339
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Problem Behavior
Interventions
Stimulant
Drug
Lead sponsor
Matthew J O'Brien, PhD, BCBA-D
Other
Eligibility
48 Months to 12 Years
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018 – 2027
U.S. locations
1
States / cities
Iowa City, Iowa
Source: ClinicalTrials.gov public record
Updated Mar 17, 2025 · Synced Oct 17, 2026, 12:45 PM EDT
Active, not recruiting Phase 1 Interventional Results available

Stimulant Therapy Targeted to Individualized Connectivity Maps to Promote ReACTivation of Consciousness

NCT03814356
View directory record Official record
Conditions
Brain Injury Traumatic Severe (Diagnosis), Coma, Consciousness, Level Altered, Anoxic Brain Injury
Interventions
Methylphenidate
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2020 – 2026
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 29, 2025 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 3 Interventional

Long-Term Safety of PRC-063 in Adolescents and Adults With ADHD

NCT02168127
View directory record Official record
Conditions
ADHD
Interventions
Drug: PRC-063, PRC-063
Drug
Lead sponsor
Rhodes Pharmaceuticals, L.P.
Industry
Eligibility
12 Years and older
Enrollment
360 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
30
States / cities
Los Angeles, California • National City, California • Newport Beach, California + 25 more
Source: ClinicalTrials.gov public record
Updated Jul 8, 2015 · Synced Oct 17, 2026, 12:45 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 8, 2021 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Early Phase 1 Interventional Accepts healthy volunteers

Effects of Methylphenidate (Ritalin®) on the Neural Basis of Anxiety

NCT02021214
View directory record Official record
Conditions
PTSD
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
University of California, San Diego
Other
Eligibility
18 Years to 40 Years · Male only
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2014
U.S. locations
1
States / cities
San Diego, California
Source: ClinicalTrials.gov public record
Updated Feb 28, 2020 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 3 Interventional Results available

KP415 Open-Label Safety Study in Children (6-12 Years of Age) With ADHD

NCT03460652
View directory record Official record
Conditions
ADHD
Interventions
KP415 oral capsule
Drug
Lead sponsor
Zevra Therapeutics
Industry
Eligibility
6 Years to 12 Years
Enrollment
282 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2018 – 2019
U.S. locations
19
States / cities
Little Rock, Arkansas • Colorado Springs, Colorado • Bradenton, Florida + 15 more
Source: ClinicalTrials.gov public record
Updated Jul 19, 2021 · Synced Oct 17, 2026, 12:45 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 25, 2015 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 2Phase 3 Interventional

OROS Methylphenidate (Concerta) in the Treatment of Adult ADHD

NCT02215538
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
OROS methylphenidate, Placebo
Drug
Lead sponsor
University of Utah
Other
Eligibility
18 Years to 65 Years
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Salt Lake City, Utah
Source: ClinicalTrials.gov public record
Updated Aug 13, 2014 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

A Pharmacokinetics and Safety of Methylphenidate HCl in Healthy Japanese Adult Male Volunteers

NCT01202734
View directory record Official record
Conditions
Healthy
Interventions
Methylphenidate HCl
Drug
Lead sponsor
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Industry
Eligibility
20 Years to 35 Years · Male only
Enrollment
10 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2010
U.S. locations
1
States / cities
Cypress, California
Source: ClinicalTrials.gov public record
Updated May 16, 2014 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Motivated Behavior in Adults With and Without ADHD

NCT02630017
View directory record Official record
Conditions
ADHD
Interventions
ADHD methylphenidate first, placebo second, ADHD placebo first, methylphenidate second, Non-ADHD methylphenidate first, placebo second, Non-ADHD placebo first, methylphenidate second
Drug
Lead sponsor
University of Arkansas
Other
Eligibility
18 Years to 45 Years
Enrollment
51 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016 – 2018
U.S. locations
2
States / cities
Little Rock, Arkansas • Durham, North Carolina
Source: ClinicalTrials.gov public record
Updated Aug 27, 2021 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 2 Interventional Results available

A Controlled Trial of Serotonin Reuptake Inhibitors Added to Stimulant Medication in Youth With Severe Mood Dysregulation

NCT00794040
View directory record Official record
Conditions
Mood Disorder, Mental Disorder Diagnosed in Childhood, Attention Deficit and Disruptive Behavior Disorder, Attention Deficit Hyperactivity Disorder
Interventions
Add-on citalopram following optimized methylphenidate, Add-on placebo following optimized methylphenidate
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
7 Years to 17 Years
Enrollment
103 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2018
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated May 7, 2019 · Synced Oct 17, 2026, 12:45 PM EDT
Recruiting Phase 4 Interventional

Methylphenidate for the Treatment of PTSD With Associated Neurocognitive Complaints

NCT05776056
View directory record Official record
Conditions
Posttraumatic Stress Disorder (PTSD)
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
VA Office of Research and Development
Federal
Eligibility
18 Years to 65 Years
Enrollment
70 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
3
States / cities
Birmingham, Alabama • Tuscaloosa, Alabama • Seattle, Washington
Source: ClinicalTrials.gov public record
Updated Aug 19, 2026 · Synced Oct 17, 2026, 12:45 PM EDT
Not listed Phase 1Phase 2 Interventional

A Study of IBRF Disorders of Consciousness Advanced Care/MultiModal Care Protocol in Severe Disorders of Consciousness

NCT02696512
View directory record Official record
Conditions
Brain Injury
Interventions
Polypharmacy using FDA-approved products, Median Nerve Stimulation (MNS), Nutraceutical Supplementation, Standard of Care
Drug · Device · Dietary Supplement + 1 more
Lead sponsor
International Brain Research Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
1
States / cities
Edison, New Jersey
Source: ClinicalTrials.gov public record
Updated Sep 2, 2016 · Synced Oct 17, 2026, 12:45 PM EDT
Recruiting Not applicable Interventional Accepts healthy volunteers

Orexin s Role in the Neurobiology of Substance Use Disorder

NCT05630781
View directory record Official record
Conditions
Nicotine Dependence
Interventions
Belsomra, Placebo, Methylphenidate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
18 Years to 60 Years
Enrollment
140 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2023 – 2027
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Sep 11, 2026 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 1 Interventional

Biomarkers of ADHD Treatment Response

NCT05650775
View directory record Official record
Conditions
ADHD
Interventions
Concerta, Adderall-XR
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
7 Years to 11 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2024
U.S. locations
1
States / cities
Brookline, Massachusetts
Source: ClinicalTrials.gov public record
Updated Dec 18, 2024 · Synced Oct 17, 2026, 12:45 PM EDT
Completed No phase listed Observational Accepts healthy volunteers

Changes in Dopamine Levels Before and After Weight Restoration in People With Anorexia Nervosa

NCT00670293
View directory record Official record
Conditions
Eating Disorders
Interventions
Positron Emission Tomography (PET) using [11C]raclopride, Methylphenidate, Magnetic Resonance Imaging (MRI) scan
Radiation · Drug · Procedure
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 45 Years
Enrollment
50 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2015
U.S. locations
1
States / cities
New York, New York
Source: ClinicalTrials.gov public record
Updated Apr 7, 2016 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 4 Interventional Results available

Examining Tolerance to CNS Stimulants in ADHD

NCT02039908
View directory record Official record
Conditions
Attention-deficit/Hyperactivity Disorder
Interventions
Methylphenidate
Drug
Lead sponsor
Florida International University
Other
Eligibility
6 Years to 12 Years
Enrollment
267 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2020
U.S. locations
1
States / cities
Miami, Florida
Source: ClinicalTrials.gov public record
Updated Jun 9, 2020 · Synced Oct 17, 2026, 12:45 PM EDT
Not yet recruiting Phase 4 Interventional

EEG Biomarkers for ADHD Stimulant Treatment

NCT07650643
View directory record Official record
Conditions
ADHD
Interventions
methylphenidate HCl, Mixed amphetamine salts extended release
Drug
Lead sponsor
Boston Children's Hospital
Other
Eligibility
7 Years to 11 Years
Enrollment
220 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Brookline, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 16, 2026 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 4 Interventional Results available

Neuroimaging of the Effects of Concerta in the Treatment of ADHD

NCT00778310
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
methylphenidate-OROS, Placebo
Drug
Lead sponsor
The University of Texas Health Science Center at San Antonio
Other
Eligibility
9 Years to 25 Years
Enrollment
76 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Jul 13, 2012 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Dexmethylphenidate Hydrochloride Tablets Under Fasting Conditions

NCT00829712
View directory record Official record
Conditions
Healthy
Interventions
Dexmethylphenidate Hydrochloride
Drug
Lead sponsor
Teva Pharmaceuticals USA
Industry
Eligibility
18 Years and older
Enrollment
24 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Saint Charles, Missouri
Source: ClinicalTrials.gov public record
Updated Aug 19, 2024 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Phase 3 Interventional Accepts healthy volunteers

Study Examining Repeat Dosing of OROS® Methylphenidate (CONCERTA®) and Immediate Release Methylphenidate in Healthy Adults

NCT00302393
View directory record Official record
Conditions
Healthy
Interventions
OROS methylphenidate hydrochloride, methylphenidate hydrochloride
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2008
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Oct 22, 2013 · Synced Oct 17, 2026, 12:45 PM EDT
Recruiting Phase 4 Interventional

Medication Treatment of ADHD in Pediatric Epilepsy

NCT07594652
View directory record Official record
Conditions
ADHD - Attention Deficit Disorder With Hyperactivity
Interventions
methylphenidate hydrochloride (Jornay PM)
Drug
Lead sponsor
Hugo W. Moser Research Institute at Kennedy Krieger, Inc.
Other
Eligibility
6 Years to 17 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 29, 2026 · Synced Oct 17, 2026, 12:45 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers Results available

Brain Dopamine Function in Adults With ADHD

NCT00580814
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Experimental: methylphenidate treatment
Drug
Lead sponsor
University of California, Irvine
Other
Eligibility
18 Years to 45 Years
Enrollment
75 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2009
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Aug 29, 2024 · Synced Oct 17, 2026, 12:45 PM EDT