Conditions: Attention Deficit Hyperactivity Disorder
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 502
Healthy volunteers: no

Brief summary:
This is a parallel design, double-blind, placebo-controlled, multi-center, 38-week treatment trial of atomoxetine in adults with attention deficit hyperactivity disorder (ADHD) who are currently living in a family situation with at least one child. The primary objective of the study is to demonstrate the efficacy of atomoxetine compared to placebo in the reduction of ADHD symptoms over 12 and 24 weeks of blinded treatment.

Detailed description:
The initial study was 34 weeks long; however, the protocol was amended to extend the open-label period of the study from 8 weeks to 12 weeks (38 weeks total).

Arms:
arm 1: Atomoxetine 40 milligrams (mg) once daily (QD) for 3 days followed by 80 mg QD for 11 days OR 40 mg QD for 7 days followed by 80 mg QD for 7 days, then 60/80/100 mg as determined by the investigator up to 24 weeks, orally arm 2: Placebo is administered once daily (QD), orally for 24 weeks. At the end of 24 weeks, the placebo arm is titrated to atomoxetine 40 mg QD for 3 days followed by 80 mg QD for 11 days OR 40 mg QD for 7 days followed by 80 mg QD for 7 days, then 40-100 mg QD, orally.

Interventions: intervention 1: Atomoxetine Hydrochloride intervention 2: Placebo
Intervention descriptions: intervention 1: Atomoxetine 40 mg QD for 3 days followed by 80 mg QD for 11 days OR 40 mg QD for 7 days followed by 80 mg QD for 7 days, then 60/80/100 mg as determined by the investigator up to 24 weeks, orally intervention 2: Placebo is administered QD, orally for 24 weeks. At the end of 24 weeks, the placebo arm is titrated to atomoxetine 40 mg QD for 3 days followed by 80 mg QD for 11 days OR 40 mg QD for 7 days followed by 80 mg QD for 7 days, then 40-100 mg QD, orally.

Protocol document: