Dataset from A 40-week, Randomized, Double-blind, Placebo-controlled, Multicenter Efficacy and Safety Study of Methylphenidate HCl Extended Release in the Treatment of Adult Patients With Childhood-onset ADHD

This study will evaluate efficacy and safety of methylphenidate hydrochloride extended release compared to placebo in adult patients with childhood-onset attention deficit/hyperactivity disorder (ADHD).