Subject disposition
Overall, 36 Japanese healthy adults (nine each in the zuranolone 10‐, 20‐, and 30‐mg groups and placebo group), 24 White healthy adults (nine each in the zuranolone 20‐ and 30‐mg groups and six in the placebo group), and 12 Japanese healthy elderly (nine in the zuranolone 30‐mg group and three in the placebo group) were enrolled in Part A of the study. Twelve and eight Japanese healthy adults were enrolled in Parts B and C, respectively. One Japanese healthy adult from the placebo group in Part A withdrew from the study; all other subjects completed the trial.