THDBH101

Primary objective: To evaluate the safety and tolerability of single and multiple oral administration of different doses of THDBH101 capsules and food effect tests in healthy Chinese adult subjects under fasting conditions, and to provide a basis for the recommended dose in later trials. Secondary objectives: 1. To evaluate the pharmacokinetic (PK) characteristics of THDBH101 capsules in healthy Chinese adult subjects after single and multiple oral administration of different doses under fasting conditions. 2. To evaluate the effect of food on the PK of THDBH101 capsules in healthy Chinese adult subjects after a single administration. Exploratory objectives: 1. To preliminarily evaluate the pharmacodynamic (PD) characteristics of THDBH101 capsules after single and multiple oral administration under fasting conditions. 2. To preliminarily evaluate the metabolism and excretion pathways of THDBH101 capsules in blood, urine and feces.