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ClinicalTrials.gov public records Last synced Sep 28, 2026, 5:24 AM EDT

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Showing 1–7 of 7 matching trials from the live ClinicalTrials.gov search.
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Conditions
ADHD, Attention Deficit Hyperactivity Disorder
Interventions
Guanfacine Hydrochloride XR, Placebo
Drug
Lead sponsor
Icahn School of Medicine at Mount Sinai
Other
Eligibility
8 Years to 15 Years
Enrollment
27 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
New York, New York
Conditions
Attention Deficit Hyperactivity Disorder, Reading Disabilities
Interventions
Methylphenidate, Intensive reading instruction, Parent Training, Mixed Salt Amphetamine, Atomoxetine, Guanfacine
Drug · Behavioral
Lead sponsor
The University of Texas Health Science Center, Houston
Other
Eligibility
7 Years to 12 Years
Enrollment
222 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2010 – 2015
U.S. locations
2
States / cities
Cincinnati, Ohio • Houston, Texas
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
Conditions
ADHD, Autism Spectrum Disorder
Interventions
Randomization to either Amphetamine (AMP) class of stimulant medication or Methylphenidate (MPH) class of stimulant medication, Randomization to either Alpha 2 agonist class of medication or alternate class of stimulant.
Drug
Lead sponsor
Daniel Coury
Other
Eligibility
4 Years to 17 Years
Enrollment
500 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2023 – 2027
U.S. locations
10
States / cities
Irvine, California • Los Angeles, California • Portland, Maine + 7 more
Conditions
Attention-Deficit/Hyperactivity Disorder (ADHD)
Interventions
Guanfacine (GUA), Methylphenidate (MPH)
Drug
Lead sponsor
Children's Hospital Medical Center, Cincinnati
Other
Eligibility
3 Years to 5 Years
Enrollment
370 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2030
U.S. locations
5
States / cities
Palo Alto, California • Boston, Massachusetts • Kansas City, Missouri + 2 more
Conditions
Alcohol Use Disorder
Interventions
Guanfacine Extended Release (XR), Placebo
Drug
Lead sponsor
Indiana University
Other
Eligibility
18 Years and older
Enrollment
200 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2029
U.S. locations
2
States / cities
Indianapolis, Indiana • Newark, New Jersey
Conditions
Alcohol Abstinence
Interventions
Guanfacine XR 3mgs/daily, Placebo (for guanfacine)
Drug
Lead sponsor
Stony Brook University
Other
Eligibility
18 Years to 50 Years · Female only
Enrollment
32 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2021
U.S. locations
1
States / cities
Stony Brook, New York