The purpose of this study is to measure safety and the improvement in symptoms in subjects with ADHD when taking ALKS 7290 tablets compared with placebo tablets.
Meets the Diagnostic and Statistical Manual of Mental Disorders -5 criteria for ADHD, as confirmed by the Mini-International Neuropsychiatric Interview (MINI) for ADHD Studies 7.0.2.
Is otherwise healthy as determined by medical evaluation, including medical history, physical examination, laboratory tests, and cardiac monitoring. Participants must be stable on permitted medication for 2 months prior to first visit, without anticipated changes to dose.
AISRS total score of ≥26
CGI-S score ≥ 4 (moderately ill or worse)
Has a known history of intellectual developmental disorder or cognitive impairment that, in the opinion of the Investigator, would interfere with study participation.
Has any of the following psychiatric conditions per the DSM-5 criteria, as assessed by the MINI. Conditions not assessable by the MINI should be assessed by clinical judgement; Diagnosis of schizophrenia, schizoaffective disorder, or bipolar I or II disorder, or current, unstable, MDD or GAD.
Clinically significant cognitive difficulties including dementia, delirium or amnestic syndromes, or any other cognitive disorder present with the past 2 years that could interfere with participation in the study.
Moderate to severe substance use disorder according to DSM-5 guidelines, including use of alcohol, nicotine, cannabis, narcotics, or any illicit substance.