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An Open-label Study of NRP104 in Adults With Attention Deficit Hyperactivity Disorder (ADHD)
This study has been completed.
Study NCT00337285   Information provided by New River Pharmaceuticals
First Received: June 9, 2006   Last Updated: August 19, 2009   History of Changes
Study Type: Interventional
Study Design: Non-Randomized, Open Label, Uncontrolled, Single Group Assignment
Conditions: Attention Deficit Hyperactivity Disorder
Attention Deficit Disorders With Hyperactivity
Attention Deficit Hyperactivity Disorders
Intervention: Drug: Vyvanse (lisdexamfetamine dimesylate), NRP104

  Participant Flow
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Recruitment Details
Key information relevant to the recruitment process for the overall study, such as dates of the recruitment period and locations
No text entered.

Pre-Assignment Details
Significant events and approaches for the overall study following participant enrollment, but prior to group assignment
Subjects received a 30, 50, or 70 mg once daily dose of Vyvanse for up to 1 year.

Reporting Groups
  Description
Vyvanse Subjects received a 30, 50, or 70 mg once daily dose of Vyvanse (Lisdexamfetamine dimesylate) for up to 1 year.

Participant Flow:   Overall Study
  Vyvanse
STARTED   349  
COMPLETED   191  
NOT COMPLETED   158  
      Withdrawal by Subject               42  
      Lost to Follow-up               41  
      Adverse Event               28  
      Protocol Violation               27  
      Lack of Efficacy               11  
      Death               1  
      Physician Decision               1  
      Lack of protocol compliance               7  



  Baseline Characteristics
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Reporting Groups
  Description
Vyvanse Subjects received a 30, 50, or 70 mg once daily dose of Vyvanse (Lisdexamfetamine dimesylate) for up to 1 year.

Baseline Measures
  Vyvanse
Number of Participants  
[units: participants]
349
Age  
[units: participants]
 
<=18 years 0
Between 18 and 65 years 349
>=65 years 0
Age  
[units: years]
Mean ± Standard Deviation
35.8 ± 10.1
Gender  
[units: participants]
 
Female 159
Male 190
Region of Enrollment  
[units: participants]
 
United States 349



  Outcome Measures
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1.  Primary:   Change in ADHD-RS-IV Total Score From Baseline at Up to One Year   [ up to one year ]
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Measure Type Primary
Measure Title Change in ADHD-RS-IV Total Score From Baseline at Up to One Year
Measure Description Change in the Attention Deficit Hyperactivity Disorder Rating Scale-fourth edition (ADHD-RS-IV) total score from baseline. The ADHD-RS-IV consists of 18 items scored on a 4-point scale ranging from 0 (no symptoms) to 3 (severe symptoms) with total score ranging from 0 to 54.
Time Frame up to one year  
Safety Issue No  

Population Description
Explanation of how the number of participants for analysis was determined. Includes whether analysis was per protocol, intention to treat, or another method. Also provides relevant details such as imputation technique, as appropriate.
Intent-to-treat (ITT). Defined as all subjects who were treated and had both the baseline and at least one post-baseline primary efficacy measurement (i.e., ADHD-RS-IV total score)

Reporting Groups
  Description
Vyvanse Subjects received a 30, 50, or 70 mg once daily dose of Vyvanse (Lisdexamfetamine dimesylate) for up to 1 year.

Measured Values
  Vyvanse
Number of Participants Analyzed
[units: participants]
345
Change in ADHD-RS-IV Total Score From Baseline at Up to One Year
[units: Units on a scale]
Mean ± Standard Deviation
-24.8 ± 11.7


Statistical Analysis 1 for Change in ADHD-RS-IV Total Score From Baseline at Up to One Year
Groups [1] Vyvanse
Method [2] t-test, 2 sided
P Value [3] < 0.0001
[1] Additional details about the analysis, such as null hypothesis and power calculation:
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[2] Other relevant information, such as adjustments or degrees of freedom:
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[3] Additional information, such as whether or not the p-value is adjusted for multiple comparisons and the a priori threshold for statistical significance:
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2.  Secondary:   Number of Participants With Improvement on CGI-I   [ Up to 1 year ]

3.  Secondary:   Change in PSQI Total Score From Baseline at Up to One Year   [ up to 1 year ]


  Serious Adverse Events
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  Other Adverse Events
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  More Information
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Certain Agreements:  
Principal Investigators are NOT employed by the organization sponsoring the study.
There IS an agreement between Principal Investigators and the Sponsor (or its agents) that restricts the PI's rights to discuss or publish trial results after the trial is completed.
The agreement is:
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is less than or equal to 60 days. The sponsor cannot require changes to the communication and cannot extend the embargo.
unchecked The only disclosure restriction on the PI is that the sponsor can review results communications prior to public release and can embargo communications regarding trial results for a period that is more than 60 days but less than or equal to 180 days. The sponsor cannot require changes to the communication and cannot extend the embargo.


Limitations and Caveats
Limitations of the study, such as early termination leading to small numbers of participants analyzed and technical problems with measurement leading to unreliable or uninterpretable data
No text entered.  


Results Point of Contact:  
Name/Title: Timothy Whitaker
Organization: Shire Pharmaceutical Development, Inc.
e-mail: twhitaker@shire.com


No publications provided


Responsible Party: Shire Pharmaceutical ( Timothy Whitaker, M.D. )
Study ID Numbers: NRP104.304
Study First Received: June 9, 2006
Results First Received: May 28, 2009
Last Updated: August 19, 2009
ClinicalTrials.gov Identifier: NCT00337285     History of Changes
Health Authority: United States: Food and Drug Administration