Hospital Acquired Bacterial Pneumonia (HABP)

To evaluate the all-cause mortality rate at Day 28 in the YK-1169 group versus the ceftazidime-avibatan injection group in the mITT population.

This is a two-part study, with Part A being the randomized, controlled portion of the study in patients with hospital-acquired bacterial pneumonia (HABP) or ventilator-associated bacterial pneumonia (VABP) suspected or confirmed to be due to carbapenem-resistant Acinetobacter baumannii-calcoaceticus complex (CRABC). Part B is the single-group portion of the study and includes patients with HABP or VABP with CRABC infections that are resistant to or have failed colistin/polymyxin B treatment.

This Phase IIb study aims to evaluate the safety and efficacy of BV100 in combination with low dose polymyxin B plus ceftazidime/avibactam or cefiderocol in patients with suspected or confirmed CRABC infections. The study is divided into two parts (Part A and Part B), recruiting in parallel. Approximately 10 subjects will be recruited in Part B, with enrollment ending once Part A enrollment is complete (at least 30 patients randomized to all of the three groups). Eligible patients, who have given informed consent, will be enrolled, and pre-treatment microbiology samples submitted to a local laboratory.

The study will evaluate the efficacy and safety of Meropenem and Pralurbactam versus Best Available Therapy in the treatment of Carbapenem-Resistant Enterobacteriaceae Infections. Infections evaluated in the study will be hospital-acquired bacterial pneumonia (HABP), ventilator-associated bacterial pneumonia (VABP), complicated intra-abdominal infection (cIAI), complicated urinary tract infection (cUTI), and Bloodstream Infection (BSI).

The purpose of this study is to evaluate the efficacy and safety of HRS -8427 in patients with HABP/VABP.