A Study to Investigate the Safety and Pharmacokinetic/Pharmacodynamic Characteristics of HSG4112

1. Study Objective \ To evaluate the safety and pharmacokinetic/pharmacodynamic characteristics of HSG4112 after multiple oral administration in healthy female subjects. \ To evaluate the safety and pharmacokinetic/pharmacodynamic characteristics of HSG4112 after multiple oral administration in obese subjects. 2. Background The previous phase 1 clinical trials investigating HSG4112 only included healthy male subjects, and food effect was observed in theses studies - the plasma exposure to HSG4112 following administration under fed conditions was approximately 2.5 times higher compared to the exposure following administration under fasted conditions. Therefore, this study is designed to evaluate the safety of HSG4112 in healthy female subjects and obese subjects following the administration of HSG4112 under fed conditions. 3. Study Design and Plan \ This study is a dose block-randomized, double-blind, placebo-controlled, multiple dosing, phase 1 clinical study. A unique randomization number will be assigned to each subject deemed eligible to participate in the study based on the inclusion/exclusion criteria. Each subject will be randomized to one of the two dose groups. In each dose group, 8 subjects will be randomized to receive HSG4112 and 2 subjects will be randomized to receive placebo. The subjects will be studied in a double-blind manner and will receive the investigational product (i.e., HSG4112 or placebo) via once-daily oral administration for 14 consecutive days. After the Post-Study Visit of the last volunteer in the 480 mg dose group, the Investigator will review all the available safety data in a blinded manner to ensure if it is safe to proceed with the 720 mg dose group. In order to evaluate safety and tolerability, assessments, such as vital signs, 12-lead ECG, laboratory test, pregnancy test, physical examination, and adverse event monitoring will be performed. Blood samples will be collected to evaluate the ph