Independent directory Public ClinicalTrials.gov records United States
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ClinicalTrials.gov public records Last synced Oct 10, 2026, 1:34 PM EDT

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Showing 25–48 of 269 matching trials from the live ClinicalTrials.gov search.
Conditions
Healthy Volunteers in Fed and Fasted State
Interventions
Dexmethylphenidate
Drug
Lead sponsor
Cingulate Therapeutics
Industry
Eligibility
18 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024
U.S. locations
1
States / cities
Overland Park, Kansas
Conditions
ADHD
Interventions
methylphenidate HCl (Concerta), Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
297 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
1
States / cities
Cambridge, Massachusetts
Conditions
ADHD
Interventions
Methylphenidate Transdermal System
Drug
Lead sponsor
Noven Therapeutics
Industry
Eligibility
13 Years to 17 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2009
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
ADHD, Attention Deficit Hyperactivity Disorder, Attention Deficit Disorder With Hyperactivity, Mental Disorders Diagnosed in Childhood, Attention Deficit and Disruptive Behavior Disorders
Interventions
Methylphenidate ER, Cyproheptadine
Drug
Lead sponsor
Douglas Sears
Individual
Eligibility
6 Years to 12 Years
Enrollment
99 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2015
U.S. locations
1
States / cities
Van Nuys, California
Conditions
Attention Deficit Disorder With Hyperactivity, Cocaine-Related Disorders
Interventions
Methylphenidate, placebo
Drug · Other
Lead sponsor
New York State Psychiatric Institute
Other
Eligibility
18 Years to 60 Years
Enrollment
124 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
1998 – 2004
U.S. locations
1
States / cities
New York, New York
Conditions
Posttraumatic Stress Disorder, Traumatic Brain Injury
Interventions
Methylphenidate Hydrochloride 20 mg, Placebo Capsule, Galantamine 12 mg
Drug
Lead sponsor
INTRuST, Post-Traumatic Stress Disorder - Traumatic Brain Injury Clinical Consortium
Other
Eligibility
18 Years to 55 Years
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
7
States / cities
San Diego, California • Boston, Massachusetts • Manchester, New Hampshire + 4 more
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
HLD200 methylphenidate hydrochloride (MPH) Capsules, Placebo
Drug
Lead sponsor
Ironshore Pharmaceuticals and Development, Inc
Other
Eligibility
6 Years to 12 Years
Enrollment
163 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
21
States / cities
Newport Beach, California • Bradenton, Florida • Gainesville, Florida + 16 more
Active, not recruiting Phase 4 Interventional Accepts healthy volunteers

Evaluating Treatment of ADHD in Children With Down Syndrome

NCT04219280
Conditions
Down Syndrome, ADHD
Interventions
Quillivant XR, Placebo
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
6 Years to 17 Years
Enrollment
100 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2020 – 2026
U.S. locations
4
States / cities
Sacramento, California • Boston, Massachusetts • Cincinnati, Ohio + 1 more
Conditions
Alcoholism, Attention Deficit Disorder
Interventions
Methylphenidate
Drug
Lead sponsor
National Institute on Alcohol Abuse and Alcoholism (NIAAA)
NIH
Eligibility
21 Years to 65 Years
Enrollment
100 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2007
U.S. locations
1
States / cities
Bethesda, Maryland
Conditions
Fatigue, Unspecified Adult Solid Tumor, Protocol Specific
Interventions
methylphenidate hydrochloride, placebo
Drug · Other
Lead sponsor
Alliance for Clinical Trials in Oncology
Other
Eligibility
18 Years and older
Enrollment
148 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2008 – 2010
U.S. locations
238
States / cities
Scottsdale, Arizona • Aurora, Colorado • Boulder, Colorado + 155 more
Completed Phase 4 Interventional Results available

Examining Tolerance to CNS Stimulants in ADHD

NCT02039908
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
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
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
Conditions
Attention Deficit Hyperactivity Disorder (ADHD)
Interventions
NT0102, Placebo
Drug
Lead sponsor
Neos Therapeutics, Inc
Industry
Eligibility
6 Years to 12 Years
Enrollment
87 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2014
U.S. locations
4
States / cities
Bradenton, Florida • Maitland, Florida • Las Vegas, Nevada + 1 more
Completed Phase 1Phase 2 Interventional Results available

The Discriminative Effects of Tramadol in Humans

NCT00499746
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
Conditions
Gulf War Illness
Interventions
Methyl-P plus GWI Nutrient Formula
Drug
Lead sponsor
K-PAX Pharmaceuticals, Inc.
Industry
Eligibility
18 Years to 64 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2015 – 2016
U.S. locations
1
States / cities
Palo Alto, California
Conditions
Healthy Volunteers
Interventions
OROS methylphenidate hydrochloride, methylphenidate hydrochloride
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2005
U.S. locations
1
States / cities
Cambridge, Massachusetts
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
Conditions
Attention Deficit Hyperactivity Disorder
Interventions
clonidine, methylphenidate, placebo
Drug · Other
Lead sponsor
University of Cincinnati
Other
Eligibility
4 Years to 6 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2007
U.S. locations
3
States / cities
Rochester, New York • Cincinnati, Ohio • Pittsburgh, Pennsylvania
Conditions
Chronic Pain
Interventions
Methylphenidate, carbidopa-levodopa, Placebo
Drug
Lead sponsor
University of Rochester
Other
Eligibility
18 Years and older
Enrollment
10 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2024 – 2027
U.S. locations
1
States / cities
Rochester, New York
Conditions
Fatigue in Multiple Sclerosis
Interventions
Methelphenidate, Placebo
Drug
Lead sponsor
Kessler Foundation
Other
Eligibility
18 Years to 65 Years
Enrollment
36 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2014 – 2025
U.S. locations
1
States / cities
East Hanover, New Jersey
Conditions
Healthy
Interventions
OROS-Methylphenidate, Immediate Release Methylphenidate, Placebo
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
18 Years to 45 Years
Enrollment
44 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2006 – 2007
U.S. locations
1
States / cities
Boston, Massachusetts
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