Change from baseline in HDRS-17 total score at Week 6 was reported. The HDRS-17 is a clinician-administered rating scale designed to assess the severity of symptoms in participants diagnosed with depression with a score range of 0 to 52. Each of the 17 items is rated by the clinician on either a 3-point (0 to 2) or a 5-point scale (0 to 4). The point scale used a rating of 0 (absent), 1 (doubtful to mild), 2 (mild to moderate), 3 (moderate to severe), and 4 (very severe). A total score (range: 0 to 52) was calculated by adding the scores of all 17 items. For each item as well as the total score, a higher score represents a more severe condition (greater depression).