A Phase II Study of HS-10353 in Participants With Postpartum Depression

The primary purpose of this study is to determine if treatment with HS-10353 reduces depressive symptoms in participants with postpartum depression (PPD) compared to placebo as assessed by the change from baseline in the 17-item Hamilton Rating Scale for Depression (HAM-D17) total score at Day 15. And the secondary purpose of this study is to evaluate the safety and tolerability of HS-10353 compared to placebo as assessed by the incidence of adverse events, clinical laboratory evaluations, electrocardiogram (ECG) parameters, the Columbia Suicide Severity Rating Scale (C-SSRS), and the 20-item Physician Withdrawal Checklist (PWC-20).