Study suspended

This is a Phase 3, randomized, multicenter, double-blind, non-inferiority study to evaluate the efficacy and safety of cefepime-taniborbactam compared to meropenem in patients ≥ 18 years of age with ventilated HABP or VABP.

Inclusion Criteria:

• Male or female, ≥18 years of age.

• The patient or patient's legally authorized/acceptable representative (LAR) has voluntarily signed and dated the IRB/IEC approved ICF

• Meets the clinical diagnosis of ventilated HABP or VABP

• Have at least one of the following clinical criteria:

  1. New onset or worsening of pulmonary symptoms and signs
  2. New onset or worsening of purulent respiratory secretions
  3. Hypoxemia
  4. Need for acute changes in ventilator support

• Have at least one of the following clinical criteria:

  1. Documented fever (defined as body temperature ≥ 38°C [100.4°F]
  2. Hypothermia (defined as body temperature ≤ 35°C [95°F])
  3. White blood cell (WBC) ≥10,000 cells/mm3 or ≤4,500 cells/mm3
  4. >15% immature neutrophils (bands).

• Have new or worsening infiltrate on a pulmonary imaging study that is consistent with bacterial pneumonia within 48 hours prior to randomization.

• Have a lower respiratory tract specimen sent for Gram stain and quantitative culture within 36 hours prior to the first dose of study drug.

Exclusion Criteria:

• Receipt of effective antibacterial treatment for pneumonia for a continuous duration of >24 hours during the previous 72 hours prior to randomization.

• Pneumonia known or suspected to be caused by:

  1. A bacterial pathogen resistant to meropenem, as assessed by susceptibility testing or against which either one or both study drugs lack activity
  2. Viruses, atypical bacteria, or fungi

• Use of non-study systemic gram-negative therapy.

• Confounding respiratory conditions.

• Receiving extracorporeal membrane oxygenation (ECMO).

• Patients with refractory septic shock.

• Active immunosuppression.

• Has a history of serious hypersensitivity (e.g., anaphylaxis), serious allergy, or any serious reaction to cephalosporin, penicillin, carbapenem, or other β-lactam antibiotics.

• Female patients who are pregnant.

• Patients with eGFR <10 mL/min/1.73 m2 or are receiving or starting renal replacement therapy or expected to require renal replacement therapy during the treatment phase of the study.

A double-blind design is used to maintain blinding for all personnel involved with the evaluation of patient efficacy and safety during the study. With the exception of the unblinded pharmacist or designee, unblinded study monitors and scientists conducting plasma assays and analyses for PK assessments, the sponsor, investigator, patient, and study site staff, will remain blinded to study drug.