A Study to Assess Adverse Events, Tolerability and How a Single Oral Dose of Nacresertib Moves Through the Body In Healthy Adult Japanese Participants

* Healthy Japanese male or female; 18 to 65 years of age at the time of screening. * Japanese participant must be first-or second-generation Japanese of full Japanese parentage. First-generation participants will have been born in Japan to two parents and four grandparents also born in Japan of full Japanese descent. Second-generation participants born outside of Japan must have two parents and four grandparents born in Japan of full Japanese descent. * BMI is ≥ 18.0 to ≤ 32.0 kg/m2 after rounding to the tenth decimal at Screening. BMI is calculated as weight in kg divided by the square of height measured in meters.

* History of epilepsy, any clinically significant cardiac, respiratory (except mild asthma as a child), renal, hepatic, gastrointestinal, hematologic or psychiatric disease or disorder, or any uncontrolled medical illness. * History of any clinically significant sensitivity or allergy to any medication or food. * History of or active medical condition(s) or surgical procedure(s) that might affect gastrointestinal motility, pH, or absorption \[e.g., Crohn's disease, celiac disease, gastroparesis, short bowel syndrome, gastric surgery (except pyloromyotomy for pyloric stenosis during infancy), cholecystectomy, vagotomy, bowel resection, etc.\].