Efficacy of Vortioxetine (Lu AA21004) in Treating Generalized Anxiety Disorder

Participants in this study will be randomly assigned to receive either 2.5 mg, 5 mg or 10 mg of vortioxetine, once daily, 60 mg of duloxetine once daily, or a placebo once daily for eight weeks. Participants will be seen weekly during the first 2 weeks of treatment, and then every 2 weeks up to the end of the 8-week treatment period. Participants who complete the 8-week treatment period will enter a 2-week discontinuation period in order to assess potential discontinuation symptoms. Total commitment time is up to 12 weeks.