Randomized, Double-Blind Study of the Efficacy and Tolerability of Extended Release Quetiapine Fumarate (Quetiapine XR) Monotherapy in Elderly Patients with Major Depressive Disorder

In elderly patients with MDD, quetiapine XR monotherapy (50-300 mg/day, flexibly dosed) is effective at improving depressive symptoms, with symptom improvement observed as early as Week 1. Overall tolerability and safety were consistent with the known profile of quetiapine.