Meropenem-FL058 Phase 2 Study in the Treatment of Complicated Urinary Tract Infections

Inclusion Criteria: 1. Male or female patients, aged 18 \~ 75 years (inclusive);； 2. Acute pyelonephritis or other complicated urinary tract infection. Exclusion Criteria: 1. Patients needing concomitant systemic antimicrobial agents in addition to those designated in the various study treatment groups; 2. Fungal urinary tract infection; 3. History of allergic to any carbapenem, cephalosporin, penicillin, other β -lactam drugs or other β -lactamase inhibitors; 4. Pregnant or breastfeeding women; 5. Inability to tolerate intravenous fluids, due to medical reasons, of 1050 mL per day required for study drug administration; 6. Unable or unwilling, in the judgment of the Investigator, to comply with the protocol.