Conditions: ADHD
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 461
Healthy volunteers: no

Brief summary:
The purpose of this study is to assess the efficacy and safety of SPD503 in subjects with ADHD when co-administered with psychostimulants in children and adolescents aged 6-17 years with a diagnosis of ADHD with a sub-optimal, partial response to stimulants.

Detailed description:

Arms:
arm 1: SPD503 (Guanfacine Extended Release) arm 2: SPD503 (Guanfacine Extended Release) arm 3: None

Interventions: intervention 1: SPD503-AM intervention 2: SPD503-PM intervention 3: Placebo
Intervention descriptions: intervention 1: SPD503 (Guanfacine Extended Release)-AM Optimized 1-4mg intervention 2: SPD503 (Guanfacine Extended Release)-PM Optimized 1-4mg intervention 3: Placebo matched to Guanfacine Hydrochloride Extended Release

Protocol document: