A Study to Evaluate the Safety, Tolerability, PK and PD of DA-1241 in Healthy Male Subjects and Subjects With T2DM

"\[Part1\] Administration once daily for 28 days; Dose strength for each cohort (Cohort 1, 2 and 3) is planned as 50mg, 100mg and 200mg, respectively.~\[Part2\] Administration once daily for 56 days; Dose strength for each cohort (Cohort 4, 5 and 6) is planned as 25mg, 50mg and 100mg, respectively.~(Dose escalation and dose level decisions for subsequent cohorts will be made via interim dose escalation review meetings.)"

\[Part1\] Administration once daily for 28 days. \[Part2\] Administration once daily for 56 days.

\[Part2\] Administration of Sitagliptin 100mg once daily for 56 days.