| E.1 Medical condition or disease under investigation | 
| E.1.1 | Medical condition(s) being investigated | 
| Prevention of nosocomial pneumonia caused by Pseudomonas aeruginosa |  | 
| E.1.1.1 | Medical condition in easily understood language | 
| Prevention of Pseudomonas aeruginosa pneumonia occurring in the hospital |  | 
| E.1.1.2 | Therapeutic area | Diseases [C] - Bacterial Infections and Mycoses [C01] | 
| MedDRA Classification | 
| E.1.2 Medical condition or disease under investigation | 
| 
| E.1.2 | Version | 18.1 |  
| E.1.2 | Level | LLT |  
| E.1.2 | Classification code | 10051190 |  
| E.1.2 | Term | Pneumonia Pseudomonas aeruginosa |  
| E.1.2 | System Organ Class | 100000004862 |  | 
| E.1.3 | Condition being studied is a rare disease | No | 
| E.2 Objective of the trial | 
| E.2.1 | Main objective of the trial | 
| 1. To evaluate the effect of MEDI3902 in reducing the incidence of nosocomial pneumonia caused by P aeruginosa 2. To evaluate the safety of a single IV dose of MEDI3902 in mechanically ventilated patients
 |  | 
| E.2.2 | Secondary objectives of the trial | 
| 1. To evaluate the serum pharmacokinetics (PK) of MEDI3902 2. To evaluate the serum anti-drug antibody (ADA) responses to MEDI3902
 3. To evaluate the effect of MEDI3902 in reducing the incidence of nosocomial pneumonia caused by P aeruginosa by mechanical ventilation status
 |  | 
| E.2.3 | Trial contains a sub-study | No | 
| E.3 | Principal inclusion criteria | 
| Colonized with Pseudomonas aeruginosa in respiratory tract, expected to require prolonged intubation and mechanical ventilation, without any evidence of active pneumonia. |  | 
| E.4 | Principal exclusion criteria | 
| Pseudomonas disease at randomisation; lung injury score consistent with pneumonia; current lung disease; currently receiving anti-pseudomonas antibiotics; moribund patients. |  | 
| E.5 End points | 
| E.5.1 | Primary end point(s) | 
| - Incidence of nosocomial pneumonia caused by P aeruginosa 
 - Treatment emergent adverse events (TEAEs) treatment emergent serious adverse events (TESAEs), adverse events of special interest (AESIs), and new onset chronic diseases (NOCDs) through 49 days postdose
 |  | 
| E.5.1.1 | Timepoint(s) of evaluation of this end point |  | 
| E.5.2 | Secondary end point(s) | 
| 1. MEDI3902 serum concentration and PK parameters 2. MEDI3902 ADA response in serum
 3. Incidence of nosocomial pneumonia caused by P aeruginosa while on mechanical ventilation
 4. Incidence of nosocomial pneumonia caused by P aeruginosa after mechanical ventilation is no longer required
 |  | 
| E.5.2.1 | Timepoint(s) of evaluation of this end point |  | 
| E.6 and E.7 Scope of the trial | 
| E.6 | Scope of the trial | 
| E.6.1 | Diagnosis | No | 
| E.6.2 | Prophylaxis | Yes | 
| E.6.3 | Therapy | No | 
| E.6.4 | Safety | Yes | 
| E.6.5 | Efficacy | Yes | 
| E.6.6 | Pharmacokinetic | Yes | 
| E.6.7 | Pharmacodynamic | Yes | 
| E.6.8 | Bioequivalence | No | 
| E.6.9 | Dose response | Yes | 
| E.6.10 | Pharmacogenetic | No | 
| E.6.11 | Pharmacogenomic | No | 
| E.6.12 | Pharmacoeconomic | Yes | 
| E.6.13 | Others | No | 
| E.7 | Trial type and phase | 
| E.7.1 | Human pharmacology (Phase I) | No | 
| E.7.1.1 | First administration to humans | No | 
| E.7.1.2 | Bioequivalence study | No | 
| E.7.1.3 | Other | No | 
| E.7.1.3.1 | Other trial type description |  | 
| E.7.2 | Therapeutic exploratory (Phase II) | Yes | 
| E.7.3 | Therapeutic confirmatory (Phase III) | No | 
| E.7.4 | Therapeutic use (Phase IV) | No | 
| E.8 Design of the trial | 
| E.8.1 | Controlled | Yes | 
| E.8.1.1 | Randomised | Yes | 
| E.8.1.2 | Open | No | 
| E.8.1.3 | Single blind | No | 
| E.8.1.4 | Double blind | Yes | 
| E.8.1.5 | Parallel group | Yes | 
| E.8.1.6 | Cross over | No | 
| E.8.1.7 | Other | No | 
| E.8.2 | Comparator of controlled trial | 
| E.8.2.1 | Other medicinal product(s) | No | 
| E.8.2.2 | Placebo | Yes | 
| E.8.2.3 | Other | No | 
| E.8.2.4 | Number of treatment arms in the trial | 3 | 
| E.8.3 | The trial involves single site in the Member State concerned | No | 
| E.8.4 | The trial involves multiple sites in the Member State concerned | Yes | 
| E.8.4.1 | Number of sites anticipated in Member State concerned | 2 | 
| E.8.5 | The trial involves multiple Member States | Yes | 
| E.8.5.1 | Number of sites anticipated in the EEA | 120 | 
| E.8.6 Trial involving sites outside the EEA | 
| E.8.6.1 | Trial being conducted both within and outside the EEA | Yes | 
| E.8.6.2 | Trial being conducted completely outside of the EEA | No | 
| E.8.6.3 | If E.8.6.1 or E.8.6.2 are Yes, specify the regions in which trial sites are planned | 
| Austria |  
| Belgium |  
| Bulgaria |  
| Croatia |  
| Czech Republic |  
| France |  
| Germany |  
| Greece |  
| Hungary |  
| Israel |  
| Portugal |  
| Romania |  
| Spain |  
| Switzerland |  
| Turkey |  
| United Kingdom |  | 
| E.8.7 | Trial has a data monitoring committee | Yes | 
| E.8.8 | Definition of the end of the trial and justification where it is not the last
                        visit of the last subject undergoing the trial | 
| End of trial is last subject last visit |  | 
| E.8.9 Initial estimate of the duration of the trial | 
| E.8.9.1 | In the Member State concerned years | 2 | 
| E.8.9.1 | In the Member State concerned months | 6 | 
| E.8.9.1 | In the Member State concerned days | 0 | 
| E.8.9.2 | In all countries concerned by the trial years | 2 | 
| E.8.9.2 | In all countries concerned by the trial months | 6 | 
| E.8.9.2 | In all countries concerned by the trial days | 0 |