A Study of Vilazodone in Pediatric Patients With Major Depressive Disorder

Change From Baseline in the CDRS-R Total Score

The Children's Depression Rating Scale-Revised (CDRS-R) total score ranges from 17 (minimal or no symptoms of depression) to 133 (indicative of depression) is a semi-structured, clinician-rated instrument designed for use with children and adolescents between the ages of 6 to 17 years of age and their caregivers. The CDRS-R evaluates the presence and severity of symptoms commonly associated with depression in childhood.

Time frame: Baseline (Week 0) to Week 26

Change From Baseline in the CGI-S Score

The Clinical Global Impressions-Severity (CGI-S) is a clinician-rated instrument used to rate the severity of the patient's current state of mental illness compared with the clinician's total experience with patients with major depressive disorder (MDD). The severity of the patient's MDD was rated on a scale from 1 to 7, with 1 indicating a normal state and 7 indicating a patient who is among the most extremely ill patients.

Time frame: Baseline (Week 0) to Week 26

Change From Baseline in Clinical Global Impressions-Improvement (CGI-I)

The Clinical Global Impressions-Improvement is a clinician-rated instrument that was used to rate total improvement or worsening of mental illness, regardless of whether the Investigator considered it to be a result of treatment with the investigational product. The CGI-I was used to rate the patient's improvement on a scale from 1 to 7, with 1 indicating that the patient was very much improved (with a score of 4 indicating no change) and 7 indicating the patient was very much worse.

Time frame: Baseline (Week 0) to Week 26