Inclusion and exclusion criteria
psychiatric
DISORDERS
Japanese and White healthy adults included male or female subjects aged 20–55 years, whereas Japanese healthy elderly included male or female subjects aged 65–75 years at the time of providing informed consent. Additionally, the subjects were required to meet the following criteria: ability to understand the study and willingness to provide written informed consent; ability to comply with all study procedures; have a body mass index (BMI) ≥18.5 to <30.0 kg/mKey reasons for exclusion included the history of clinically significant medical conditions, including psychiatric disorders; clinically significant abnormal findings during the physical and laboratory examinations at the screening visit; being at risk for suicide; history of drug or alcohol addiction/abuse, or positive drug or alcohol screen; and history of gastrointestinal surgery. The complete list of exclusion criteria is provided in Table 