This is a phase I, randomized, double-blind, placebo-controlled, single ascending dose (SAD) and multiple ascending dose (MAD) clinical trial to assess the safety, tolerability, and pharmacokinetics of HS-10356 oral formulation in Chinese healthy adult volunteers.~Approximately five sequential dose panels (single oral doses of 2,6,15,30,45mg HS-10356) will be evaluated in SAD. To protect the safety of volunteers, two sentinel volunteers were first enrolled in the first dose panel (2mg panel) and randomly assigned to HS-10356 or placebo in a 1:1 ratio. After the sentinel volunteers were given the dose for at least 24 hours and confirmed that they were safe, the remaining 6 volunteers were randomly assigned to HS-10356 or placebo in a ratio of 5:1. For the follow-up panels of SAD, volunteers were randomly assigned to either the experimental group or the placebo group (6 cases in HS-10356 and 2 cases in placebo) in a 3:1 ratio using block randomization method. Approximately three sequential dose panels (14 consecutive days for respectively daily oral doses of 6,15,30mg HS-10356, QD) will be evaluated in MAD. Volunteers were randomly assigned to either the experimental group or the placebo group (9 cases in the HS-10356 and 3 cases in the placebo) in a ratio of 3:1 using block randomization method. Each subject will receive only one regimen in this study. Safety data up to Day12 (±2) in SAD and up to Day25 (±2) in MAD will be reviewed prior to dose escalation. Cohorts of SAD and MAD will be added or removed depending on the assessment results of SRC.
The primary objective of this study is to assess the safety and tolerability of single and multiple oral administration of HS-10356 in healthy volunteers.