A Phase II Study of 610 in Participants With Severe Eosinophilic Asthma

This is a multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy and safety of 610 in adults with severe eosinophilic asthma. Plan to recruit 120 subjects, and the subjects divided into 3 groups: 610 100mg group, 610 300mg group and placebo group. The study is divided into screening period of 4 weeks, treatment period of 16 weeks and follow-up period of 8 weeks.