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Showing 1–24 of 271 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: MPH (Ritalin) Clear all
Completed Phase 4 Interventional Accepts healthy volunteers

An Open Label Phase I/II Study of Dopamine Transporter Receptor Occupancy With OROS and Immediate Release Methylphenidate as Measured With C-11 Altropane in Human Subjects

NCT00302367
View directory record Official record
Conditions
Healthy Volunteers
Interventions
OROS methylphenidate hydrochloride, immediate release methylphenidate hydrochloride
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
20 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2004
U.S. locations
1
States / cities
Cambridge, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jul 11, 2011 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Not applicable Interventional Accepts healthy volunteers

Sensitivity of Project: EVO Monitor Cognitive Measurements to Pharmacological Agents

NCT02822937
View directory record Official record
Conditions
Healthy
Interventions
Methylphenidate, Triazolam, Project: EVO, Placebo
Drug · Other
Lead sponsor
Akili Interactive Labs, Inc.
Industry
Eligibility
40 Years to 55 Years
Enrollment
18 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2016
U.S. locations
1
States / cities
San Antonio, Texas
Source: ClinicalTrials.gov public record
Updated Nov 6, 2016 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 1Phase 2 Interventional Results available

The Discriminative Effects of Tramadol in Humans

NCT00499746
View directory record Official record
Conditions
Opioid Abuse, Opioid Addiction, Stimulant Abuse, Stimulant Addiction
Interventions
tramadol, placebo, Hydromorphone, Methylphenidate
Drug
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Months to 55 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Oct 16, 2017 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 3 Interventional Results available

Time Course of Response to Methylphenidate HCl ER Capsules in Children 6 to 12 Years With ADHD in Classroom Setting

NCT01269463
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, ADHD
Interventions
Methylphenidate Hydrochloride Extended Release Capsule, Placebo
Drug
Lead sponsor
Rhodes Pharmaceuticals, L.P.
Industry
Eligibility
6 Years to 12 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Irvine, California
Source: ClinicalTrials.gov public record
Updated Dec 12, 2022 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 1 Interventional Accepts healthy volunteers

Study for Naltrexone on the Abuse Potential of Methylphenidate

NCT03769064
View directory record Official record
Conditions
Naltrexone, Methylphenidate Abuse
Interventions
Placebo, Methylphenidate 60 mg, Treatment Phase Sequence 4213, Treatment Phase Sequence 2134, Treatment Phase Sequence 1342, Treatment Phase Sequence 3421
Drug
Lead sponsor
Avekshan LLC
Industry
Eligibility
18 Years to 45 Years
Enrollment
94 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2018
U.S. locations
1
States / cities
Overland Park, Kansas
Source: ClinicalTrials.gov public record
Updated Dec 6, 2018 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 4 Interventional

Efficacy of Concerta in Treating ADHD in Mothers of Children With ADHD

NCT00318981
View directory record Official record
Conditions
Adult ADHD
Interventions
Concerta
Drug
Lead sponsor
University of Maryland, College Park
Other
Eligibility
Female only
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2006
U.S. locations
1
States / cities
Fairfax, Virginia
Source: ClinicalTrials.gov public record
Updated Dec 26, 2023 · Synced Sep 23, 2026, 7:38 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 23, 2026, 7:38 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 15, 2026 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Not applicable Interventional Results available

Role of Apathy in the Effectiveness of Weight Loss Interventions

NCT00548652
View directory record Official record
Conditions
Obesity, Apathy
Interventions
MOVE, medical crisis councelling, methyphenidate
Behavioral · Drug
Lead sponsor
VA Nebraska Western Iowa Health Care System
Federal
Eligibility
21 Years to 70 Years
Enrollment
101 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Oct 3, 2019 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Not applicable Interventional

Methylphenidate in Children and Adolescents With Pervasive Developmental Disorders

NCT00025779
View directory record Official record
Conditions
Attention Deficit Disorder With Hyperactivity, Autistic Disorder, Pervasive Development Disorders
Interventions
methylphenidate, guanfacine
Drug
Lead sponsor
National Institute of Mental Health (NIMH)
NIH
Eligibility
5 Years to 14 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2001
U.S. locations
5
States / cities
Los Angeles, California • New Haven, Connecticut • Indianapolis, Indiana + 2 more
Source: ClinicalTrials.gov public record
Updated Jul 27, 2009 · Synced Sep 23, 2026, 7:38 PM EDT
Active, not recruiting Phase 2 Interventional

Multimodal Therapy for the Treatment of Fatigue in Patients With Prostate Cancer Receiving Radiotherapy With Androgen Deprivation Therapy

NCT01410942
View directory record Official record
Conditions
Prostate Cancer
Interventions
Placebo, Methylphenidate, Counseling Sessions, Sham Exercise, Standardized Exercise Intervention Program, Cognitive Behavioral Therapy (CBT)
Other · Drug · Behavioral
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older · Male only
Enrollment
175 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2028
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Sep 2, 2026 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 4 Interventional Results available

Omega-3 Supplementation to ADHD Medication in Children

NCT02204410
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder, Deficient Emotional Self-Regulation
Interventions
Omega-3 Fatty Acid, ADHD Medication
Dietary Supplement · Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
6 Years to 17 Years
Enrollment
21 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Jun 28, 2017 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Testing Methylphenidate for Smoking Abstinence

NCT00549640
View directory record Official record
Conditions
Smoking
Interventions
Methylphenidate, Placebo
Drug
Lead sponsor
Mayo Clinic
Other
Eligibility
18 Years to 65 Years
Enrollment
80 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2008 – 2009
U.S. locations
1
States / cities
Rochester, Minnesota
Source: ClinicalTrials.gov public record
Updated Apr 18, 2011 · Synced Sep 23, 2026, 7:38 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 26, 2021 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 2 Interventional Results available

Effects of Methylphenidate on Cellular Abnormalities in Children With Attention Deficit Hyperactivity Disorder (ADHD)

NCT00409708
View directory record Official record
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Extended Release Methylphenidate (Ritalin LA ) plus Behavior Therapy, Behavior Therapy
Drug · Behavioral
Lead sponsor
Novartis
Industry
Eligibility
6 Years to 12 Years
Enrollment
142 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 2006
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated May 16, 2011 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 3 Interventional Results available

KP415 Classroom Study in Children (6-12 Years of Age) With ADHD

NCT03292952
View directory record Official record
Conditions
ADHD
Interventions
KP415 oral capsule, Placebo oral capsule
Drug
Lead sponsor
Zevra Therapeutics
Industry
Eligibility
6 Years to 12 Years
Enrollment
155 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2018
U.S. locations
5
States / cities
Bradenton, Florida • Maitland, Florida • Las Vegas, Nevada + 2 more
Source: ClinicalTrials.gov public record
Updated Jun 29, 2021 · Synced Sep 23, 2026, 7:38 PM EDT
Not listed Phase 2 Interventional

Methylphenidate to Treat Methamphetamine Dependence

NCT01044238
View directory record Official record
Conditions
Methamphetamine Dependence
Interventions
Methylphenidate
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 55 Years
Enrollment
90 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Source: ClinicalTrials.gov public record
Updated May 19, 2014 · Synced Sep 23, 2026, 7:38 PM EDT
Completed Phase 4 Interventional Results available

Prevention of Stimulant-Induced Euphoria With an Opioid Receptor Antagonist

NCT01673594
View directory record Official record
Conditions
ADHD, Stimulant-Induced Euphoria
Interventions
SODAS MPH, Naltrexone
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 30 Years
Enrollment
37 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Nov 29, 2016 · Synced Sep 23, 2026, 7:38 PM EDT
Recruiting Phase 2Phase 3 Interventional

Combination Therapy for Treatment of Sleep Disturbance in Patients With Advanced Cancer

NCT05474846
View directory record Official record
Conditions
Sleep, Fatigue, Anxiety, Cancer, Depression
Interventions
Melatonin, Placebo for Melatonin, Methylphenidate
Drug · Other
Lead sponsor
M.D. Anderson Cancer Center
Other
Eligibility
18 Years and older
Enrollment
188 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2027
U.S. locations
1
States / cities
Houston, Texas
Source: ClinicalTrials.gov public record
Updated Nov 5, 2025 · Synced Sep 23, 2026, 7:38 PM 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 23, 2026, 7:38 PM 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 23, 2026, 7:38 PM EDT
Terminated Phase 2 Interventional

Adderall XR Compared With Concerta in Treating Young Cancer Patients With Memory, Attention, and Depression

NCT00069927
View directory record Official record
Conditions
Depression, Neurotoxicity, Unspecified Childhood Solid Tumor, Protocol Specific
Interventions
Adderall-XR®, Concerta®
Drug
Lead sponsor
University of South Florida
Other
Eligibility
6 Years to 17 Years
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2006
U.S. locations
9
States / cities
Gainesville, Florida • Pensacola, Florida • Tampa, Florida + 4 more
Source: ClinicalTrials.gov public record
Updated Feb 2, 2014 · Synced Sep 23, 2026, 7:38 PM EDT
Active, not recruiting Phase 4 Interventional

Single and Combined Effects of Behavioral, Academic, and Medication Treatments for ADHD in the Classroom

NCT05469386
View directory record Official record
Conditions
ADHD
Interventions
Methylphenidate Hydrochloride ER, Behavioral classroom, Placebo, General Classroom, Academic Accommodations
Drug · Behavioral
Lead sponsor
Florida International University
Other
Eligibility
5 Years to 12 Years
Enrollment
288 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2026
U.S. locations
2
States / cities
Miami, Florida • Amherst, New York
Source: ClinicalTrials.gov public record
Updated Aug 26, 2025 · Synced Sep 23, 2026, 7:38 PM EDT
Recruiting Phase 1 Interventional

Tirzepatide s Dopaminergic Effects in Alcohol Use Disorders (AUD)

NCT07559500
View directory record Official record
Conditions
Alcohol Use Disorder (AUD)
Interventions
Tirzepatide, Placebo, [11C]raclopride plus drug, [11C]NNC-112
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
21 Years to 65 Years
Enrollment
176 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jul 27, 2026 · Synced Sep 23, 2026, 7:38 PM EDT