A Phase Ia Clinical Study to Evaluate the Safety, Tolerability, PK and Immunogenicity of YBSW015 in Healthy Subjects

This is phase Ia study to research YBSW015 injection which is a monomolecular bispecific antibody. The Primary objective is to evaluate the safety and tolerability of YBSW015 injection after a single intravenous injection at different doses in healthy subjects. The Secondary objective is to evaluate the pharmacokinetic characteristics and immunogenicity of different doses of YBSW015 injection after a single intravenous injection in healthy subjects. This study is a single-center, randomized, double-blind, placebo-controlled, single-dose escalation clinical trial.