A Study to Assess the Safety, Tolerability and Pharmacokinetics of ASP7713 in Healthy Non-Japanese Adult and Elderly Subjects and Healthy Japanese Adult Subjects

This is a combined Single and Multiple Ascending Oral Dose Study. Part 1 is a Single Ascending Dose (SAD) and Part 2 is Multiple Ascending Dose (MAD). The purpose of the study is to evaluate the safety and tolerability of single and multiple ascending oral doses of ASP7713 in healthy non-Japanese (Part 1) and Japanese (Part 2) adult participants and non-Japanese elderly participants (Part 2). This study will also evaluate the pharmacokinetics of single and multiple ascending oral doses of ASP7713 in non-Japanese (Part1) and Japanese (Part 2) adult participants and non-Japanese elderly participants (Part 2) as well as the effect of a single and multiple oral dose of ASP7713 on the QT interval using Fridericia's Correction (QTcF). In addition, this study will evaluate a potential racial difference in safety, tolerability and pharmacokinetics of multiple oral doses of ASP7713 in healthy non-Japanese and Japanese adult participants (Part 2).