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In 2009, the FDA approved extended-release guanfacine — an α2-adrenergic agonist — for treatment of children and adolescents with attention-deficit/hyperactivity disorder (ADHD; JW Pediatr Adolesc Med Oct 7 2009). Now, the FDA has approved another α2-adrenergic agonist — extended-release clonidine hydrochloride (KAPVAY) — for use as monotherapy or as an adjunct to stimulants for treatment of ADHD in patients ages 6 to 17 years. KAPVAY is a nonstimulant, twice-daily oral treatment.
FDA approval was based on the findings of two randomized controlled trials that twice-daily extended-release clonidine either alone or with stimulants (methylphenidate or amphetamine) significantly decreased core ADHD symptoms (measured on a standardized parent rat…