Treatment of Attention Deficit Hyperactivity Disorder in Preschool-Age Children (PATS)
Public ClinicalTrials.gov record NCT00018863. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.
Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.
Official title
Methylphenidate Efficacy and Safety in ADHD Preschoolers
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
This research focuses on the treatment of Attention Deficit Hyperactivity Disorder (ADHD) in very young children. The medication being used is methylphenidate (Ritalin); it is being studied to determine its safety and how well it works to treat ADHD in preschool-age children (3-5.5 year olds).
Study identification
- NCT ID
- NCT00018863
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 165 participants
Conditions and interventions
Eligibility (public fields only)
- Age range
- 3 Years to 5 Years
- Sex
- All
- Healthy volunteers
- Healthy volunteers not accepted
This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.
Study timeline
- Start date
- Mar 31, 2001
- Primary completion
- Mar 30, 2006
- Completion
- Nov 29, 2006
- Last update posted
- Dec 1, 2020
2001 – 2006
United States locations
- U.S. sites
- 6
- U.S. states
- 4
- U.S. cities
- 5
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| University of California, Irvine | Irvine | California | — | — |
| University of California, Los Angeles | Los Angeles | California | — | — |
| Johns Hopkins University | Baltimore | Maryland | — | — |
| New York State Psychiatric Institute | New York | New York | — | — |
| New York University School of Medicine | New York | New York | — | — |
| Duke University Medical Center | Durham | North Carolina | — | — |
Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.
About this trial record page
- What this page shows
- Public field values for ClinicalTrials.gov record NCT00018863, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
- What this page does not do
- No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
- Where the data comes from
- Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
- Last refresh
- Last update posted Dec 1, 2020 · Synced Sep 5, 2026
Related: full search, browse by condition, browse by drug or therapy, browse by sponsor, browse by U.S. city.
Open the official record
The complete protocol, eligibility criteria, and contact information for NCT00018863 live on ClinicalTrials.gov.