An Open-Label Treatment With Randomization Observation, Investigator-Initiated Study, on the Duration and Efficacy of Jornay PM (Methylphenidate Hydrochloride Extended-Release Capsules) on Adult ADHD Symptoms and Executive Function and Emotional Regulation Throughout the Day Into Early Evening

Inclusion criteria

• ✓. Adults ages 18-60 years, inclusive at the time of consent
• ✓. Able to provide signed informed consent
• ✓. Any gender
• ✓. Subjects with a current primary Diagnostic and Statistical Manual of Mental Disorders (DSM) -5 diagnosis of ADHD of predominantly inattentive presentation, or combined presentations) as confirmed by the Adult ADHD Clinical Diagnostic Scale (ACDS) Version 1.2.
• ✓. Subjects who are not receiving any pharmacological treatment for ADHD must have an DSM AISRS 18 item total score of ≥ 28 at screening. Subjects who were previously receiving pharmacological treatment for ADHD at screening must have a minimum total DSM AISRS 18 item score of ≥ 22 at screening
• ✓. Dysthymia and anxiety disorders in remission, but stable on psychiatric medication for three weeks or more at the discretion of principal investigator will be allowed. Medication for these disorders to remain constant for the duration of the protocol.
• ✓. Subjects, who have not used stimulant medication in the past 2 months.
• ✓. Occasional use of marijuana (less than 3 times weekly) will be allowed during screening process until subject is enrolled into the study. After subject is enrolled onto Jornay PM, subject is asked to complete an attestation. The attestation will state that the subject will not consume marijuana while in the study.