Real-World Observational Study Of Zavicefta to Characterize Use Patterns

This observational study will include approximately 700 hospitalized patients with a gram-negative infection, who have received at least one dose of ceftazidime-avibactam.

Patients will be recruited in approximately 62 sites across 12 countries in Europe (including Russia) and Latin America. Patients will be followed from ceftazidime-avibactam initiation until 60 days post hospital discharge, mortality, withdrawal from the study, or loss-to-follow-up, whichever occurs first.

Data will be abstracted from medical records using an electronic case report form (eCRF). Baseline data include patient socio-demographics, medical history, and clinical and microbiological characteristics of the infection treated.

Follow-up data will include details of treatment over time and clinical, microbiological, and healthcare resource utilization outcomes.

Evaluation of clinical success will be performed in patients with at least ?72 hours of exposure to ceftazidime-avibactam.

Safety will be evaluated in all patients exposed to at least one dose of the product.

Inclusion Criteria:

1. Hospitalized patient ?18 years old or considered an adult in accordance with the age of majority in the participant's country of residence at the time of treatment with ceftazidime-avibactam.
2. Patient received ?1 dose of ceftazidime-avibactam in routine practice at participating site since 01 January, 2018 onwards or since the date of launch in the country if it is after 01 January, 2018.
3. Patient underwent microbiologic sampling ?5 days before the initiation of ceftazidime-avibactam (irrespective of results and actual bacteriological identification).

4. Patient has all required essential data elements which include:

   1. Start and stop dates of ceftazidime-avibactam,
   2. Start and stop dates of prior antibiotic therapy used for the index infection,
   3. Type of combined antibiotic therapy (if applicable) and start and stop dates of any antibiotic combined with ceftazidime-avibactam.
5. Evidence of a personally signed and dated informed consent document indicating that the patient (or a legally acceptable representative) has been informed of all pertinent aspects of the study where required by local regulations.

Exclusion Criteria:

Patients must not meet any of the following exclusion criteria to be eligible:

1. The patient is enrolled in any clinical trial of an investigational product. Patients who are enrolled in non-interventional studies (NISs) (e.g. registries) are eligible for inclusion.
2. The patient has received ceftazidime-avibactam in a compassionate care program setting.
3. The patient was exposed to ceftazidime-avibactam before use for the index infection.