A Phase 1 Study of Y-3 in US Healthy Volunteers.

"The investigational drug (Y-3) consists of two parts: Y-3 for injection (lyophilized powder) and Solvent for Y-3 for injection (concentrated solution).~Name: Y-3 for injection Strength: 20 mg Dosage Form: Lyophilized powder for injection Storage Condition: 2-8°C Supplier: Neurodawn Pharmaceutical Co., Ltd. Name: Reconstitution diluent for Y-3 for injection Strength: 3ml (containing 0.6 g propylene glycol) Dosage Form: Concentrated solution for injection Storage Condition: 2-8°C Supplier: Neurodawn Pharmaceutical Co., Ltd."

"The placebo consists of two parts: placebo (lyophilized powder) and Solvent for Y-3 for injection(concentrated solution).~Name: Placebo Strength: 0 mg Dosage Form: Lyophilized powder for injection Storage Condition: 2-8°C Supplier: Neurodawn Pharmaceutical Co., Ltd. Name: Solvent for Y-3 for injection Strength: 3 mL (containing 0.6 g propylene glycol) Dosage Form: Concentrated solution for injection Storage Condition: 2-8°C Supplier: Neurodawn Pharmaceutical Co., Ltd."