Conditions: Attention Deficit/Hyperactivity Disorder
Keywords: Attention Deficit /Hyperactivity Disorder, hyperactivity
Allocation: NON_RANDOMIZED | Intervention model: SINGLE_GROUP
Enrollment: 299
Healthy volunteers: no

Brief summary:
This study will evaluate the long-term safety of methylphenidate hydrochloride extended release in adults with attention deficit/hyperactivity disorder

Detailed description:

Arms:
arm 1: All participants started with Ritalin LA 20 mg/day and increased at weekly intervals in increments of 20 mg/day until reaching the patient's optimal dose 40, 60 or 80 mg/day).

Interventions: intervention 1: Ritalin LA (methylphenidate hydrochloride extended release)
Intervention descriptions: intervention 1: Ritalin LA 20 mg or 30 mg (a racemic mixture of d- and l-thre-Methylphenidate Hydrocloride (MPH), Extended release hard capsules) taken orally once daily in doses of 40, 60, or 80 mg. For 40mg dose patients took (2) Ritalin LA 20mg daily, for 60mg patients took (2) Ritalin LA 30mg daily and for 80mg patients took (2) Ritalin LA 30mg daily + (1) Ritalin LA 20mg daily for their optimal dose.

Protocol document: