Improved Executive Function in Adults Diagnosed With Attention-Deficit/ Hyperactivity Disorder as Measured by the
Thomas E Brown1, Jie Chen2, Brigitte Robertson3
1Keck School of Medicine of the University of Southern California, Los Angeles, and Brown Clinic for Attention & Related Disorders, Manhattan Beach, CA, USA.
Objective:
Assess executive function (EF) improvement with SHP465 mixed amphetamine salts (MAS) extended-release in adults with attention-deficit/hyperactivity disorder (ADHD) using responder analyses of the Brown Attention-Deficit Disorder Scale (BADDS).
Methods:
Post hoc analyses examined data from placebo-controlled SHP465 MAS dose-optimization (12.5-75 mg) and fixed-dose (25-75 mg) studies. Treatment response was assessed using two definitions (BADDS total score at endpoint <50 [no EF impairment] vs. ≥50 [impaired]; BADDS total score at endpoint relative to the in-treatment 90% CI range for baseline total score [below the range = improved]).
Results:
Response rates (SHP465 MAS vs. placebo) favored SHP465 MAS (all nominal p < .0001) in the dose-optimization (BADDS <50: 41.9% vs. 19.2%; below 90% CI range: 57.4% vs. 29.6%) and fixed-dose (BADDS <50: 51.9% vs. 16.7%; below 90% CI range: 70.6% vs. 32.3%) studies.
Conclusion:
Improvement in EF measured by BADDS response rates was approximately 2-fold greater with SHP465 MAS than placebo.
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