Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Prospective, Randomized, Double-Blind, Double-Dummy, Multicenter Study to Assess the Safety and Efficacy of Doripenem Compared With Imipenem-Cilastatin in the Treatment of Subjects With Ventilator-Associated Pneumonia
Brief Summary: The purpose of this study is to show that doripenem is as effective as imipenem-cilastatin in the treatment of patients with ventilator-associated pneumonia.


Options:
A: Inclusion Criteria:

* Patient hospitalised in the ICU
* Bacterial infection suspected
* At ICU admission the patient do not receive antibiotics or receive antibiotics for less than 24hours and an interval between admission and inclusion \< 12 hours
* During ICU stay, provided that the interval between the start of suspected infection and inclusion is \< 12hours
* Written inform consent from the patient or relatives. The consent may be obtained after the enrollment if the patient is not able to give consent and if there is no relatives

Exclusion Criteria:

* Age \< 18 years
* Pregnancy
* Patient expected to remain hospitalised in the ICU for less than 3 days
* Neutropenia
* Infection or presumed infection requiring prolonged antibiotic therapy (endocarditis,osteo-articular infection, mediastinitis, deep abscess, tuberculosis, pneumocystis pneumonia, toxoplasmosis).
* Simplified Acute Physiology Score II at ICU admission (calculated during the first 12h)
* Attending physician declining to use full life support.
B: Inclusion Criteria:

* Patients must have new or worsening radiographic infiltrates consistent with ventilator-associated pneumonia that was not related to cardiac or other disease processes
* Have at least 1 of the following: fever (core body temperature greater than 39.0°C); hypothermia (core body temperature of less than 35.0°C); leukocytosis (increased WBC count); and leukopenia (decreased WBC count)
* Have developed ventilator-associated pneumonia and have been on mechanical ventilation for more than or equal to 48 hours and on mechanical ventilation at the time that study medication is assigned
* Have been hospitalized or been in a chronic care facility for consecutive 5 days or more within the last 90 days
* Have a baseline Clinical Pulmonary Infection Score (CPIS) more than or equal to 6 and an Acute Physiology and Chronic Health Evaluation (APACHE) II score more than 8 and less than 35

Exclusion Criteria:

* Have received antibiotics for this episode of ventilator-associated pneumonia for more than 24 hours before study medication administration
* Known presence at baseline of only methicillin-resistant Staphylococcus aureus or Stenotrophomonas infection
* Acute respiratory distress syndrome
* Has any of the following conditions: chest trauma with severe lung bruising or loss of stability of the thoracic cage following a fracture of the sternum, ribs, or both, increased amounts of fluid in the lung cavities requiring drainage or pus in the cavity
* Has active seizure disorder within the last 2 years or brain injury such that imipenem cilastatin would not be administered to the patient in usual practice
* Has lung cancer within the last 2 years, chronic bronchitis with an increase in severity within the last 30 days, chronic enlargement of the bronchi or bronchioles related to inflammatory disease or obstruction, lung abscess(s), anatomical bronchial obstruction, respiratory tuberculosis on treatment, suspected atypical pneumonia, chemical pneumonitis, cystic fibrosis, congestive heart failure, severe burns to greater than 15% of the body, evidence of severe and chronic liver disease
C: Inclusion Criteria:

* Male and female patients 18 years of age or older with a clinical diagnosis of VAP, HAP or HCAP who are expected to be on mechanical ventilation for at least 3 days

Exclusion Criteria:

* Patients with compromised of suppressed immune systems, severe hypoxemia, PEEP\>15cm H2O, creatinine\>2 mg/dL, or who are pregnant
D: Inclusion Criteria:

Fulfilment of all of the following three criteria:

1. Male or female, aged \> 18 years of age.
2. Admitted to the participating Intensive Care Units (ICUs) at the following hospitals: Hvidovre Hospital, Bispebjerg Hospital, Amager Hospital, Herlev Hospital, Glostrup Hospital, and Gentofte Hospital
3. Ability to understand and provide written informed consent to participate in this trial; or ability to understand and provide oral informed consent in the presence of at least one impartial witness who should sign and personally date the consent form; or the subject's legally acceptable representative can understand and provide written informed consent if the subject is not capable of this because of the present mental or physical condition of the subject.

Exclusion Criteria:

A subject will NOT be eligible for inclusion in this trial if any of the following criteria apply:

1. Subjects with known hyperbilirubinaemia (\> 0.4 mg/ml) or hypertriglyceridaemia (\> 10 g/l) since this can interfere with measurements. If subjects with unknown status on these points are included and have PCT measurements, the measuring equipment will detect these conditions.
2. Subjects suffering from a blood disorder, where daily sampling of 7 ml of blood for a maximum of 28 days (210 ml distributed on 28 days) will be an inconvenience or a potential risk, which could compromise the safety of the subject.
3. Subjects who are pregnant or breast feeding

The a priori probability of surviving with the normal recommended diagnostics and treatment with the presently available means to detect infections and, on the other hand, the normal diagnostics and treatment together with daily procalcitonin measurements and prompt clinical reaction should be equal.

Answer: B