21. Subject is currently undergoing Cognitive Behavioral Therapy (CBT) for the treatment of ADHD, has initiated behavioral therapy (including school based interventions) less than 1 month prior to screening, or is receiving behavioral therapy and in the opinion of the investigator will not be able to follow a stable routine for the duration of the study. Note: Unavoidable changes in school-based interventions that occur during study participation will not be exclusionary, but should be documented by the investigator, to the extent possible.