Conditions: ADHD
Allocation: RANDOMIZED | Intervention model: PARALLEL
Enrollment: 217
Healthy volunteers: no

Brief summary:
To assess efficacy and safety of SPD503(guanfacine hydrochloride) in subjects with ADHD and oppositional symptoms.

Detailed description:

Arms:
arm 1: None arm 2: None

Interventions: intervention 1: SPD503 (Guanfacine hydrochloride) intervention 2: Placebo
Intervention descriptions: intervention 1: Subjects will start at 1mg tablet each morning and will subsequently be titrated (in 1 mg weekly increments) to optimal dose based upon tolerance and response to investigational product (not to exceed 4 mg/day). intervention 2: Placebo

Protocol document: