Visit 1 - (Initial visit) - escitalopram 10 mg Visit 2 - (Week 2) - escitalopram 20 mg Visit 3 - (Week 4) - review visit Visit 4 - (Week 6) - MADRS <12 - continue 20 mg MADRS >12 - escitalopram 30 mg Visit 5 - (Week 8) - MADRS <8 - continue current dose MADRS >8 - escalate dose (20 mg to 30 mg or 30 mg to 35mg)