SPD503 (Guanfacine Hydrochloride) in ADHD Plus Oppositional Symptoms
Public ClinicalTrials.gov record NCT00367835. 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
A Double-Blind, Randomized, Multi-Center, Flexible Dose Study Evaluating the Efficacy and Safety of SPD503 (Guanfacine Hydrochloride) in Children Aged 6-12 With Symptoms of Oppositionality and a Diagnosis of Attention Deficit/Hyperactivity Disorder
Brief summary
Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.
To assess efficacy and safety of SPD503(guanfacine hydrochloride) in subjects with ADHD and oppositional symptoms.
Study identification
- NCT ID
- NCT00367835
- Recruitment status
- Completed
- Study type
- Interventional
- Phase
- Phase 3
- Enrollment
- 217 participants
Conditions and interventions
Conditions
Eligibility (public fields only)
- Age range
- 6 Years to 12 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
- Dec 4, 2006 (Actual)
- Primary completion
- Jan 4, 2008 (Actual)
- Completion
- Jan 4, 2008 (Actual)
- Last update posted
- Jun 14, 2021
2006 – 2008
United States locations
- U.S. sites
- 34
- U.S. states
- 17
- U.S. cities
- 32
| Facility | City | State | ZIP | Site status |
|---|---|---|---|---|
| HOPE Research Institute | Phoenix | Arizona | 85050 | — |
| Valley Clinical Research | El Centro | California | 92243 | — |
| Peninsula Research Associates Inc | Rolling Hills Estates | California | 90274 | — |
| Sarkis Clinical Trials | Gainesville | Florida | 32607 | — |
| University of Florida | Gainesville | Florida | 32610 | — |
| Amedica Research Institute, Inc | Hialeah | Florida | 33013 | — |
| CORE Research, Inc | Maitland | Florida | 32751 | — |
| Miami Research Associates | Miami | Florida | 33143 | — |
| Clinical Neuroscience Solutions, Inc | Orlando | Florida | 32806 | — |
| Childrens Developmental Center | Winter Park | Florida | 32792 | — |
| Capstone Clinical Research | Libertyville | Illinois | 60048 | — |
| Vince and Associates Clinical Research | Overland Park | Kansas | 66212 | — |
| Pedia Research | Owensboro | Kentucky | 42301 | — |
| Four Rivers Clinical Research | Paducah | Kentucky | 42003 | — |
| University of Nebraska Medical Center | Omaha | Nebraska | 68198 | — |
| CRI Worldwide, LLC | Clementon | New Jersey | 08021 | — |
| Mount Sinai School of Medicine | New York | New York | 10029 | — |
| University of Rochester, School of Medicine and Dentistry | Rochester | New York | 14618 | — |
| SUNY Upsate Medical University | Syracuse | New York | 13210 | — |
| Piedmont Neuropsychiatry | Charlotte | North Carolina | 28226 | — |
| Duke Child & Family Study Center | Durham | North Carolina | 27705 | — |
| University of Cincinnati | Cincinnati | Ohio | 45267 | — |
| Discovery and Wellness Center for Children | Cleveland | Ohio | 44106 | — |
| BHI Inc | Moore | Oklahoma | 73160 | — |
| IPS Research Company | Oklahoma City | Oklahoma | 73103 | — |
| Oregon Center for Clinical Investigations, Inc | Portland | Oregon | 97210 | — |
| Oregon Center for Clinical Investigations, Inc | Salem | Oregon | 97301 | — |
| CRI Worldwide, LLC | Philadelphia | Pennsylvania | 19149 | — |
| University of Pittsburgh Medical Center | Pittsburgh | Pennsylvania | 15213 | — |
| Claghorn-Lesem Research Clinic Inc | Houston | Texas | 77008 | — |
| Red Oak Psychiatry Associates, PA | Houston | Texas | 77090 | — |
| NeuroScience, Inc | Herndon | Virginia | 20170 | — |
| Dominion Clinical Research | Midlothian | Virginia | 23112 | — |
| Eastside Therapeutic Resource | Kirkland | Washington | 98033 | — |
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 NCT00367835, 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 Jun 14, 2021 · Synced Oct 20, 2026
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Open the official record
The complete public registry record, listed eligibility criteria, and available contact information for NCT00367835 live on ClinicalTrials.gov.