A Classroom Study to Assess the Time of Onset of Vyvanse (Lisdexamfetamine Dimesylate) in Pediatric Subjects Aged 6-12 With Attention Deficit/Hyperactivity Disorder (ADHD)
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ClinicalTrials.gov Identifier: NCT00500149 |
Recruitment Status :
Completed
First Posted : July 12, 2007
Results First Posted : June 5, 2009
Last Update Posted : June 14, 2021
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Condition or disease | Intervention/treatment | Phase |
---|---|---|
ADHD | Drug: Vyvanse (lisdexamfetamine dimesylate) Drug: Placebo | Phase 3 |
Study Type : | Interventional (Clinical Trial) |
Actual Enrollment : | 129 participants |
Allocation: | Randomized |
Intervention Model: | Crossover Assignment |
Masking: | Quadruple (Participant, Care Provider, Investigator, Outcomes Assessor) |
Primary Purpose: | Treatment |
Official Title: | A Phase IIIb, Randomized, Double-Blind, Multi-Center, Placebo- Controlled, Dose-Optimization, Cross-Over, Analog Classroom Study to Assess the Time of Onset of Vyvanse (Lisdexamfetamine Dimesylate) in Pediatric Subjects Aged 6-12 With Attention-Deficit/Hyperactivity Disorder |
Actual Study Start Date : | June 13, 2007 |
Actual Primary Completion Date : | December 5, 2007 |
Actual Study Completion Date : | December 5, 2007 |

Arm | Intervention/treatment |
---|---|
Experimental: 1 |
Drug: Vyvanse (lisdexamfetamine dimesylate)
Following completion of the open-label dose optimization period and successful titration to an optimal dose of Vyvanse™, subjects will take their optimized dose of Vyvanse™ (30, 50 or 70 mg/day). |
Placebo Comparator: 2 |
Drug: Placebo
Placebo |
- Onset of Effect of Vyvanse [ Time Frame: Evaluations were conducted at 1.5, 2.5, 5.0, 7.5, 10.0, 12.0, and 13.0 hours post-dose. ]The onset of effect will be defined as the first assessment time showing statistical significance between Vyvanse and placebo as measured by the Swanson, Kotkin, Agler, M-Flynn, and Pelham (SKAMP) Deportment scale. The degree of impairment is rated from 0 (normal) to 6 (maximal).
- Duration of Effect of Vyvanse [ Time Frame: Evaluations were conducted at 1.5, 2.5, 5.0, 7.5, 10.0, 12.0, and 13.0 hours post-dose. ]Duration of effect will be defined as the first time point at which there is a non-significant difference between Vyvanse and placebo after a time point at which there is a significant difference between the two treatment groups as measured by SKAMP Deportment Scores. The degree of impairment is rated from 0 (normal) to 6 (maximal).

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Ages Eligible for Study: | 6 Years to 12 Years (Child) |
Sexes Eligible for Study: | All |
Accepts Healthy Volunteers: | No |
Inclusion Criteria:
- Subject is a male or female aged 6-12 years inclusive at the time of consent.
- Females of Child-bearing Potential (FOCP) must have a negative serum beta Human Chorionic Gonadotropin (HCG) pregnancy test at Screening and a negative urine pregnancy test at Baseline and agree to comply with any applicable contraceptive requirements of the protocol.
- Primary diagnosis of ADHD: combined sub-type or predominantly hyperactive impulsive sub-type based on a detailed psychiatric evaluation.
- Subject has a baseline ADHD-RS-IV score ≥ 28.
- Intelligent Quotient (IQ) score of 80 or above on the Kaufman Brief Intelligence Test (KBIT).
- Subject must be able to complete at least the Basic Test of the PERMP assessment.
Exclusion Criteria:
- Subject has a current, controlled (requiring a restricted medication) or uncontrolled, comorbid psychiatric diagnosis with significant symptoms such as Post Traumatic Stress Disorder (PTSD), psychosis, bipolar illness, pervasive developmental disorder, severe obsessive compulsive disorder, severe depressive or severe anxiety disorder
- Subject has Conduct Disorder.
- Subject has a documented allergy, hypersensitivity or intolerance to amphetamines.
- Subject has failed to respond to one or more adequate courses (dose and duration) of amphetamine therapy.
- The subject has a recent history (within the past 6 months) of suspected substance abuse or dependence disorder (excluding nicotine) in accordance with DSM-IV-TR criteria.
- Subject weighs less than 50 pounds (22.7kg).
- Subject is significantly overweight
- Subject had a history of seizures during the last two years (exclusive of febrile seizures), a tic disorder, a current diagnosis and/or family history of Tourette's Disorder.
- Subject has any reported history of abnormal thyroid function.
- Subject has taken another investigational drug or taken part in a clinical trial within the last 30 days prior to Screening.
- Subject has a known history of structural cardiac abnormality, as well as any other condition(s) that may affect cardiac performance.
- Subject has a concurrent chronic or acute illness (such as severe allergic rhinitis or an infectious process requiring antibiotics), disability, or other condition that might confound the results of safety assessments
- Subject is taking other medications that have central nervous system (CNS) effects or affect performance, such as sedating antihistamines and decongestant sympathomimetics (bronchodilators are not exclusionary).
- The female subject is pregnant or lactating.
- Subject is well controlled on their current ADHD medication with acceptable tolerability.

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.
Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT00500149
United States, Arkansas | |
Clinical Study Centers, LLC | |
Little Rock, Arkansas, United States | |
United States, California | |
Univ. of CA, Irvine Child Development Center | |
Irvine, California, United States | |
Shire Clinical Research Site | |
Wildomar, California, United States | |
United States, Kansas | |
Vince and Associates Clinical Research | |
Overland Park, Kansas, United States | |
United States, Nevada | |
Center for Psychiatry & Behavioral Medicine Inc | |
Las Vegas, Nevada, United States | |
United States, North Carolina | |
Duke Child & Family Study Center | |
Durham, North Carolina, United States | |
Duke University Medical Center | |
Durham, North Carolina, United States | |
United States, Texas | |
Shire Clinical Research Site | |
Houston, Texas, United States | |
Shire Clinical Research Site | |
Lubbock, Texas, United States |
Study Director: | Study Director | Takeda |
Publications of Results:
Responsible Party: | Shire |
ClinicalTrials.gov Identifier: | NCT00500149 |
Other Study ID Numbers: |
SPD489-311 |
First Posted: | July 12, 2007 Key Record Dates |
Results First Posted: | June 5, 2009 |
Last Update Posted: | June 14, 2021 |
Last Verified: | June 2021 |
Attention Deficit Disorder with Hyperactivity Attention Deficit and Disruptive Behavior Disorders Neurodevelopmental Disorders Mental Disorders Lisdexamfetamine Dimesylate Central Nervous System Stimulants Physiological Effects of Drugs |
Dopamine Uptake Inhibitors Neurotransmitter Uptake Inhibitors Membrane Transport Modulators Molecular Mechanisms of Pharmacological Action Dopamine Agents Neurotransmitter Agents |