KemPharm, Inc. announced the U.S. commercial launch of AZSTARYS™, a once-daily product for the treatment of attention deficit hyperactivity disorder (ADHD) in patients age six years and older. Corium, Inc. (Corium), a portfolio company of Gurnet Point Capital (GPC), is leading the commercialization of AZSTARYS in the U.S. AZSTARYS was approved by the U.S. Food and Drug Administration (FDA) in March 2021 and consists of serdexmethylphenidate (SDX), KemPharm’s prodrug of d-methylphenidate (d-MPH), co-formulated with immediate-release d-MPH. Subsequent to the approval of AZSTARYS, SDX was classified as a Schedule IV controlled substance by the U.S. Drug Enforcement Administration (DEA). AZSTARYS is classified as a Schedule II controlled substance as it includes a 70:30 mixture of SDX (Schedule IV) and d-MPH (Schedule II).Attention-deficit/hyperactivity disorder (ADHD) is one of the most common mental disorders affecting children. ADHD also affects many adults. Symptoms of ADHD include inattention (not being able to keep focus), hyperactivity (excess movement that is not fitting to the setting) and impulsivity (hasty acts that occur in the moment without thought).1 An estimated 8.4% of children and 2.5% of adults have ADHD.2,3. The U.S. ADHD market accounted for approximately $17.5 billion of revenue in 2019 with a year-over-year prescription growth rate greater than 4%. Within this, the branded portion of the ADHD market was approximately $7.4 billion in 2019, with extended-release products representing more than 95% of the branded prescriptions. In 2019, the methylphenidate segment of the ADHD market accounted for approximately 20 million prescriptions and $4.9 billion in sales.