Single Ascending Dose Study of Safety and Tolerability of SPH3127 Tablet in Chinese Healthy Volunteers

48 healthy volunteers will participate in this trial. Participants will be divided into 6 group, 25mg，50mg，100mg，200mg，400mg and 800mg. In each group, 6 participants will take SPH3127 tablet, while 2 participants will take placebo randomly. Safety data and PK/PD data will be collected as protocol described.