Study Showed VYVANSE (lisdexamfetamine dimesylate) CII Provided Significant Efficacy at 14 Hours After Administration in Adults with ADHD in an Adult Simulated Workplace Environment Shire plc, the global specialty biopharmaceutical company, today announced results from a Phase 3b study that found VYVANSE CII demonstrated significant efficacy at 14 hours after administration during a simulated workplace environment study in adults with Attention Deficit Hyperactivity Disorder. VYVANSE is the first approved stimulant for adults with ADHD to be evaluated in this setting, and these data were presented today at the 49th annual New Clinical Drug Evaluation Unit meeting in Hollywood, FL. VYVANSE is currently approved by the US Food and Drug Administration for the treatment of ADHD in children age 6 to 12 years and in adults with ADHD. [more...]