A Laboratory School Comparison of Mixed Amphetamine Salts Extended Release (Adderall XR®) and Atomoxetine (Strattera®) in School-Aged Children With Attention Deficit/Hyperactivity Disorder

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Abstract
Mixed amphetamine salts extended release (MAS XR; Adderall XR®) and atomoxetine (Strattera®) were compared in children 6 to 12 years old with attention deficit/hyperactivity disorder (ADHD) combined or hyperactive/impulsive type in a randomized, double-blind, multicenter, parallel-group, forced-dose-escalation laboratory school study. Primary efficacy measure was the SKAMP (Swanson, Kotkin, Agler, M-Flynn, and Pelham) behavioral rating scale. Changes in mean SKAMP deportment scores from baseline were significantly greater for MAS XR ( n = 102) than for atomoxetine ( n = 101) overall (-0.56 and -0.13, respectively; p < .0001) and at each week ( p < .001). Adverse events were similar for both treatment groups. The extended time course of action and greater therapeutic efficacy of MAS XR suggests that it is more effective than atomoxetine in children with ADHD.