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All Doses of VYVANSE Studied Demonstrated Significant Efficacy Within One
Week of Daily Treatment
BOSTON, Oct. 25 /PRNewswire-FirstCall/ -- Shire plc (LSE: SHP, Nasdaq: SHPGY, TSX: SHQ), the global specialty biopharmaceutical company, today announced the results of a study which demonstrated that adults with Attention Deficit Hyperactivity Disorder (ADHD) experienced significant improvements in ADHD symptom control within one week of treatment with once- daily VYVANSE(TM) (lisdexamfetamine dimesylate), the first prodrug stimulant. Findings from this phase III pivotal trial were presented today at a national psychiatric meeting in Boston, Mass.
"Adults with ADHD may experience significant impairments in their ability to focus, and organize and complete tasks, which could affect their work, family life and personal relationships," said Lenard A. Adler, M.D., lead researcher in this study and director of the Adult ADHD Program at New York University School of Medicine and author of Scattered Minds: Help and Hope for Adults with ADHD. "The results of this study demonstrated that VYVANSE significantly improved the core symptoms of ADHD in adult study patients."
Results of Phase III Pivotal Trial
In this double-blind, placebo-controlled, four-week study with dose escalations in 414 adults aged 18 to 55 years, treatment with VYVANSE at all doses studied (30 mg, 50 mg, 70 mg) was significantly more effective than placebo and improvements were observed in the first week of the study.
All doses of VYVANSE showed significant improvements in the average
change in ADHD Rating Scale (ADHD-RS-IV) scores, as measured from the
study's start to end, the primary endpoint of this study. ADHD-RS-IV is a
standardized, validated test for assessing symptoms of ADHD and for
assessing their response to treatment. The scale, which contains 18 items,
is based on the ADHD diagnostic criteria as defined in the Diagnostic and
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