Single administration, double-blinded, placebo-controlled (2 subjects in each group will take placebo,8 subjects in each group will take CY150112) and 6 dose groups (0.5mg, 1.5mg, 4.5mg, 10mg, 18mg and 24mg).~This study comprises a screening period (between signing of the informed consent form and Day -1), baseline period (Day -1), treatment period (Days 1-5) and follow-up period(Days 12 or 7 days after discharge ).
The primary objective of single ascending dose study is to evaluate the safety and tolerability of CY150112 after single oral administration of different doses in healthy Chinese subjects.