Effect of Administration of Itraconazole on the Pharmacokinetics of S-309309 in Healthy Participants

Key Inclusion Criteria: * Participants who are considered to be medically healthy as determined by the investigator * Participants whose body mass index (BMI) is within the range of ≥ 18.5 to ≤ 30.0 kg/m\^2 * Contraceptive use by male and female participants should be consistent with local regulations regarding the methods of contraception for those participating in clinical studies * Participants who understand the study procedures and agree to participate by providing written informed consent * Participants who are willing and able to comply with all study procedures and restrictions Key Exclusion Criteria: * Participants who have a history of clinically significant hypersensitivity or severe side effects induced by a drug. * Participants who have a history of ventricular dysfunction, congestive heart failure, or pulmonary edema. * Participants who have a history of gastrointestinal surgery including, but not limited to, cholecystectomy, gastric resection, and/or intestinal resection that may result in a clinically significant abnormality in gastrointestinal function (except for an appendectomy). Participants can be considered by the investigator (or sub-investigator) to be ineligible for the study due to a history of or current condition of significant metabolic or endocrine, hepatic, renal, hematological, pulmonary, cardiovascular, gastrointestinal, urological, immunological, neurological, or psychiatric disorders with clinical manifestations. * Participants who are considered inappropriate for participation in the study for any reason by the investigator (or sub-investigator). Note: Other protocol defined Inclusion/Exclusion criteria may apply.