(2) NEW YORK CITY (dpa-AFX) - Today's Daily Dose brings you news about KemPharm scoring regulatory nod for its ADHD drug, expanded FDA approval for Pfizer's Lorbrena, United Therapeutics scrapping the development of Trevyent, Vir Biotechnology closing the enrollment in VIR-7831 arm of ACTIV-3 trial, and Takeda securing global rights to Ovid's investigational medicine Soticlestat. Read on. 1.KemPharm Scores FDA Nod For ADHD Drug KemPharm Inc. (KMPH) soared more than 42% on Wednesday, following FDA approval of AZSTARYS (formerly referred to as KP415), a once-daily product for the treatment of attention deficit hyperactivity disorder (ADHD) in patients age six years and older.