Independent directory Public ClinicalTrials.gov records United States
Clear filters

These results were retrieved from the live ClinicalTrials.gov registry. Filters and sort order apply to this result list.

ClinicalTrials.gov public records Last synced Nov 3, 2026, 9:34 PM EST

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Showing 145–168 of 273 matching trials from the live ClinicalTrials.gov search.
Completed Phase 2 Interventional Accepts healthy volunteers Results available

Testing Methylphenidate for Smoking Abstinence

NCT00549640
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
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Atomoxetine Hydrochloride, Methylphenidate Hydrochloride, Placebo
Drug
Lead sponsor
Eli Lilly and Company
Industry
Eligibility
6 Years to 12 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2005
U.S. locations
1
States / cities
Scottsdale, Arizona
Conditions
ADHD
Interventions
methylphenidate transdermal system, Placebo
Drug
Lead sponsor
Noven Therapeutics
Industry
Eligibility
13 Years to 17 Years
Enrollment
217 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2008
U.S. locations
32
States / cities
Scottsdale, Arizona • Lafayette, California • Wildomar, California + 29 more
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
Conditions
HIV Dementia
Interventions
Long acting methylphenidate, Matched placebo
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
18 Years to 64 Years
Enrollment
40 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2014
U.S. locations
1
States / cities
Los Angeles, California
Conditions
Attention-Deficit/Hyperactivity Disorder (ADHD)
Interventions
Dex-Methylphenidate hydrochloride Extended Release (Focalin® XR), Placebo
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
6 Years to 12 Years
Enrollment
165 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008
U.S. locations
8
States / cities
Little Rock, Arkansas • Bradenton, Florida • South Miami, Florida + 4 more
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
Completed Phase 1 Interventional Accepts healthy volunteers Results available

Dexmethylphenidate Hydrochloride Tablets Under Non-Fasting Conditions

NCT00829673
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
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Guanfacine, Methylphenidate (MPH)
Drug
Lead sponsor
University of California, Los Angeles
Other
Eligibility
7 Years to 14 Years
Enrollment
212 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2011
U.S. locations
1
States / cities
Los Angeles, California
Completed Phase 1 Interventional Accepts healthy volunteers

Impulsivity and Stimulant Administration

NCT01978431
Conditions
Cocaine Dependence, Impulsivity
Interventions
cocaine hydrochloride, methylphenidate
Drug
Lead sponsor
Yale University
Other
Eligibility
18 Years to 50 Years
Enrollment
29 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2012 – 2014
U.S. locations
1
States / cities
New Haven, Connecticut
Recruiting Not applicable Interventional Accepts healthy volunteers

Orexin s Role in the Neurobiology of Substance Use Disorder

NCT05630781
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
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Aptensio XR
Drug
Lead sponsor
Rhodes Pharmaceuticals, L.P.
Industry
Eligibility
4 Years to 6 Years
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2016 – 2017
U.S. locations
2
States / cities
Las Vegas, Nevada • Durham, North Carolina
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
HLD200 methylphenidate hydrochloride capsules, Placebo HLD200 capsules
Drug
Lead sponsor
Ironshore Pharmaceuticals and Development, Inc
Other
Eligibility
4 Years to 5 Years
Enrollment
26 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2025
U.S. locations
13
States / cities
Dothan, Alabama • Anaheim, California • Jacksonville, Florida + 10 more
Conditions
Fatigue, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
methylphenidate hydrochloride, quality-of-life assessment
Drug · Procedure
Lead sponsor
Eastern Cooperative Oncology Group
Network
Eligibility
18 Years to 120 Years
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
Started 1999
U.S. locations
57
States / cities
Scottsdale, Arizona • Palo Alto, California • Stanford, California + 44 more
Conditions
Substance Abuse
Interventions
Not listed
Lead sponsor
National Institute on Drug Abuse (NIDA)
NIH
Eligibility
21 Years to 50 Years
Enrollment
31 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2015
U.S. locations
1
States / cities
Baltimore, Maryland
Completed No phase listed Observational Accepts healthy volunteers

Understanding Sleep Problems in Children With Autism Spectrum Disorder

NCT00691080
Conditions
Sleep Problems
Interventions
Not listed
Lead sponsor
Baylor College of Medicine
Other
Eligibility
4 Years to 9 Years
Enrollment
58 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2007 – 2011
U.S. locations
3
States / cities
New York, New York • Portland, Oregon • Houston, Texas
Conditions
Fatigue, Prostate Cancer
Interventions
Ritalin
Drug
Lead sponsor
Memorial Sloan Kettering Cancer Center
Other
Eligibility
40 Years to 90 Years · Male only
Enrollment
120 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2002 – 2006
U.S. locations
1
States / cities
New York, New York
Conditions
Healthy Volunteers in Fed and Fasted State
Interventions
Dexmethylphenidate
Drug
Lead sponsor
Cingulate Therapeutics
Industry
Eligibility
18 Years to 50 Years
Enrollment
27 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2022
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
Attention Deficit Disorder With Hyperactivity
Interventions
Valproate, Risperidone, Placebo, Stimulant medication, Behavioral family counseling
Drug · Behavioral
Lead sponsor
Joseph Blader
NIH
Eligibility
6 Years to 12 Years
Enrollment
270 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2013
U.S. locations
3
States / cities
Glen Oaks, New York • Stony Brook, New York • San Antonio, Texas
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
Amphetamine and/or methylphenidate, Hold stimulant medication
Drug · Other
Lead sponsor
Nationwide Children's Hospital
Other
Eligibility
2 Years to 18 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2012 – 2015
U.S. locations
1
States / cities
Columbus, Ohio
Conditions
ADHD NOS
Interventions
atomoxetine (Strattera)
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
1
States / cities
Cambridge, Massachusetts
Conditions
Sickle Cell Disease
Interventions
methylphenidate
Drug
Lead sponsor
Temple University
Other
Eligibility
6 Years to 16 Years
Enrollment
34 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
2
States / cities
Philadelphia, Pennsylvania • Charleston, South Carolina
Conditions
Depression, Palliative Care, Cancer, Mental Disorder
Interventions
Methylphenidate, Placebo, Selective Serotonin Uptake Inhibitor (SSRI)
Drug
Lead sponsor
US Department of Veterans Affairs
Federal
Eligibility
18 Years and older
Enrollment
47 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2010
U.S. locations
1
States / cities
Portland, Oregon
Conditions
ADHD, Autism
Interventions
Very Low Dose Quillivant XR, Low Dose Quillivant XR, Moderate Dose Quillivant XR
Drug
Lead sponsor
Seattle Children's Hospital
Other
Eligibility
5 Years to 16 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2016
U.S. locations
1
States / cities
Seattle, Washington