Hospital-acquired Bacterial Pneumonia and Ventilator-associated Bacterial Pneumonia

This study is to evaluate the efficacy and safety of Meropenem and Pralurbactam for Injection in Subjects with HABP/VABP. The primary objective is to demonstrate non-inferiority of Meropenem and Pralurbactam to Ceftazidime and Avibactam Sodium for Injection. This study is a randomized, double-blind, active-controlled study. The total duration of the study will be approximately 32 days including screening and follow-up.