Compare Ceftazidime-Avibactam + Metronidazole vs Meropenem for Hospitalized Adults With Complicated Intra-Abd Infections

Inclusion Criteria

• Patient must be 18 to 90 years of age, inclusive,
• Female patients can participate if they are surgically sterilized or postmenopausal for at least 1 year or her sexual partner has had a vasectomy
• Female of childbearing potential has had normal menstrual periods for 3 months and negative serum pregnancy test and agree to practice highly effective methods of birth control during treatment and for at least 7 days after last dose
• Intraoperative/postoperative enrollment with visual confirmation (presence of pus within the abdominal cavity) of an intra-abdominal infection associated with peritonitis
• Confirmation of infection by surgical intervention within 24 hours of entry: evidence of systemic inflammatory indicators; physical findings consistent with intra-abdominal infection; supportive radiologic imaging findings of intra-abdominal infections

Exclusion Criteria

• Patient is diagnosed with traumatic bowel perforation undergoing surgery within 12 hours; perforation of gastroduodenal ulcers undergoing surgery within 24 hours. Other intra-abdominal processes in which primary etiology is not likely to be infectious
• Patient has abdominal wall abscess or bowel obstruction without perforation or ischemic bowel without perforation
• Patients whose surgery will include staged abdominal repair, or "open abdomen" technique, or marsupialization
• Patient has suspected intra-abdominal infections due to fungus, parasites, virus or tuberculosis
• Patient is considered unlikely to survive the 6- to 8-week study period or has a rapidly progressive or terminal illness, including septic shock that is associated with a high risk of mortality