It is a clear, colorless to pale yellow liquid, will be administered in volume to match active dose as solution for inhalation with duration of nebulisation as approximately 3-5 min and will be administered using "Pari eFlow with s30 mesh" device.

AE is any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with use of a medicinal product (MP), whether or not considered related to MP. AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with use of MP. SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect or is medically significant or all events of possible drug induced liver injury with hyperbilirubinemia. Safety Population comprised of all participants who received at least one complete dose of study treatment.

Hematology parameters included basophils, eosinophils, hematocrit, hemoglobin, lymphocytes, monocytes, neutrophils, neutrophil bands, platelets, red blood cell (RBC) count, segmented neutrophils and white blood cell (WBC) count. The potential clinical concern values were: hematocrit (low: <0.3 fraction and high: >0.54 fraction), Hemoglobin (low: <90 gram per Liter and high: >180 gram per Liter), lymphocytes (low: <0.6 x 10^9 cells/Liter and high: >3.0 x 10^9 cells/Liter), neutrophils: (low: <1.5 x 10^9 cells/Liter and high: >20 x 10^9 cells/Liter), platelets: (low: <100 x 10^9 cells/Liter and high: >600 x 10^9 cells/Liter) and WBC: (low: <3 x 10^9 cells/Liter and high: >20 x 10^9 cells/Liter). Only those participants for which at least one value of potential clinical concern was reported are summarized.

Clinical chemistry parameters and their potential clinical concern values were: albumin (low: <25 millimole [mmol]/L and high: >60 mmol/L), calcium (low: <1.8 mmoL/L and high: >2.75 mmol/L), creatinine (low: <30 mmol/L and high: >160 mmol/L), glucose (low: <3 mmol/L and high: >9 mmol/L), potassium (low: <2.5 mmol/L and high: >5.5 mmol/L), sodium (low: <120 mmol/L and high: >160 mmol/L), total carbon dioxide content (low: <16 mmol/L and high: >35 mmol/L) and blood urea nitrogen (low: <3 mmol/L and high: >15 mmol/L). Number of participants with clinical chemistry abnormalities of potential clinical importance are presented.

Urinalysis included dipstick urine test which was used to screen for glucose, ketones, occult blood and protein on Day 1 (pre-dose) and Day 8. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters of urine glucose, ketones, occult blood and protein can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample.

Single 12-lead ECGs were obtained thereafter during the study, using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, RR and corrected QT (QTc) intervals. Number of participants with ECG values of potential clinical importance are presented.

Vital sign measurements included systolic and diastolic blood pressure, pulse rate, temperature and respiratory rate. Vital sign measurements were measured in a semi-recumbent or supine position after 5 minutes rest. The potential clinical concern range for systolic blood pressure: <85 and >160 millimeters of mercury, for diastolic: <45 and >100 millimeters of mercury and heart rate: <40 and >110 beats per minute. Number of participants with vital signs of potential clinical importance are presented.

Oxygenation and function of gas exchange was assessed by the comparison of partial pressure of oxygen arterially (PaO2) divided by the fraction of oxygen that is being inspired (FiO2), sometimes referred to simply as the 'P to F ratio'. The P to F ratio was assessed at time points during the period of intubation and mechanical ventilation. An arterial blood sample was required for determination of the partial pressure of oxygen and the percentage of O2 which is being inspired was recorded at the corresponding time point. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value (on completion of surgery on Day 1) minus Baseline value.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay on Day 1 after completion of surgery. BAL biomarkers included soluble tumor necrosis factor receptor (STNFR) type I, free, STNFR type I, total, tumor necrosis factor alpha, interleukin 6, interleukin 8, interleukin 1 beta, monocyte chemotactic protein-1, macrophage inflammatory protein 1 alpha, macrophage inflammatory protein 1 beta, interleukin 10 and soluble receptor for advanced glycation end (sRAGE) products. Any value below limit of quantification was replaced with half the lower limit of quantification (LLQ) prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay. BAL biomarkers included C-reactive protein and total proteins. Any value below limit of quantification was replaced with half the LLQ prior to deriving the summary measures. All BAL C-reactive protein samples were below limit of quantification and all were assigned to half the LLQ prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay. BAL biomarkers included surfactant protein D and clara cell secretory protein. Any value below limit of quantification was replaced with half the LLQ prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

Oxygenation and function of gas exchange was assessed by the comparison of PaO2 divided by the FiO2, sometimes referred to simply as the 'P to F ratio'. The P to F ratio was assessed at time points during the period of intubation and mechanical ventilation. An arterial blood sample was required for determination of the partial pressure of oxygen and the percentage of O2 which is being inspired was recorded at the corresponding time point. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value (on completion of surgery on Day 1) minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X in the category titles.

PVPI is a derived value from EVLW, and is considered to be less variable than EVLWI. PVPI was measured via single-indicator transpulmonary thermodilution as long as the participant remained in the ICU with a patent indwelling PiCCO catheter. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

EVLW refers to the fluid within the lung but outside the vascular compartment. It includes extravasated plasma, intracellular water, lymphatic fluid, and surfactant. EVLWI was measured by trans-pulmonary thermodilution via a PiCCO hemodynamic monitor. Change from Baseline value was the post-Baseline value minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

The SOFA score defines the presence and severity of dysfunction within 6 organ systems (cardiovascular, respiratory, coagulation, liver, renal, and nervous system) with a value of "0" for assigned to normal function to a maximum value of "4" for severe dysfunction in each of the organ systems. Each component of the SOFA score was added together, ranging from "0" indicating no organ dysfunction in any of the 6 organ systems, to "24" indicating maximal organ dysfunction across all 6 organ systems. Per-Protocol (PP) 2 Population comprised of all the participants in the Safety population for whom the study drug actually received was the same one they were randomized to (study drug).

Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points. Pharmacokinetic (PK) Population comprised of all participants in the Safety population for whom a pharmacokinetic sample (plasma and/or BAL) was obtained and analyzed.

Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points.

Half-life (t1⁄2) is the time required for a quantity to reduce to half its initial value. t1/2 was not determined in all cases due to insufficient data in the terminal phase. Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points. Only those participants available at the specified time points were analyzed represented by n=X,X in the category titles.

BAL sampling and plasma sampling was done on Day 1 (on completion of surgery). Raw summary statistics for the derived ratio were not produced. Only statistical modeling was performed that produced a posterior distribution for each treatment. Summary measure for the posterior distribution was the median. The quantity being modeled was the mean treatment effect (pooling data from BAL Collapsed and Ventilated Lungs). The standard deviation is capturing the dispersion of the estimate for the mean effect. Ratio of total protein (Ratio was derived from BAL and Plasma values) is presented.

Serum samples were obtained to determine incidence and titers of serum anti-GSK2862277 antibodies at the specified time points. The binding antibody detection assay was performed at the specified time points. Number of participants with positive immunogenicity results post-dosing is presented.

BAL samples were collected on Day 1 (on completion of surgery) and BAL concentrations of GSK2862277 and derived PK parameters were determined. Only those participants available at the specified time points were analyzed.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent collapsed lung BAL procedure on Day 1.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent ventilated lung BAL procedure on Day 1.

Total of all reporting groups

Eligible participants received a single dose of matching placebo on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent ventilated lung BAL procedure on Day 1.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent collapsed lung BAL procedure on Day 1.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent ventilated lung BAL procedure on Day 1.

EVLW refers to the fluid within the lung but outside the vascular compartment. It includes extravasated plasma, intracellular water, lymphatic fluid, and surfactant. EVLWI was measured by trans-pulmonary thermodilution via a PiCCO hemodynamic monitor. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value (on completion of surgery on Day 1) minus Baseline value. Only those participants with data available at the specified time points were analyzed.

PP1 Population.

AE is any untoward medical occurrence in a participant or clinical investigation participant, temporally associated with use of a medicinal product (MP), whether or not considered related to MP. AE can therefore be any unfavorable and unintended sign (including an abnormal laboratory finding), symptom, or disease (new or exacerbated) temporally associated with use of MP. SAE is any untoward medical occurrence that, at any dose results in death, is life-threatening, requires hospitalization or prolongation of existing hospitalization, results in disability/incapacity, or is a congenital anomaly/birth defect or is medically significant or all events of possible drug induced liver injury with hyperbilirubinemia. Safety Population comprised of all participants who received at least one complete dose of study treatment.

Safety Population.

Hematology parameters included basophils, eosinophils, hematocrit, hemoglobin, lymphocytes, monocytes, neutrophils, neutrophil bands, platelets, red blood cell (RBC) count, segmented neutrophils and white blood cell (WBC) count. The potential clinical concern values were: hematocrit (low: <0.3 fraction and high: >0.54 fraction), Hemoglobin (low: <90 gram per Liter and high: >180 gram per Liter), lymphocytes (low: <0.6 x 10^9 cells/Liter and high: >3.0 x 10^9 cells/Liter), neutrophils: (low: <1.5 x 10^9 cells/Liter and high: >20 x 10^9 cells/Liter), platelets: (low: <100 x 10^9 cells/Liter and high: >600 x 10^9 cells/Liter) and WBC: (low: <3 x 10^9 cells/Liter and high: >20 x 10^9 cells/Liter). Only those participants for which at least one value of potential clinical concern was reported are summarized.

Safety Population.

Clinical chemistry parameters and their potential clinical concern values were: albumin (low: <25 millimole [mmol]/L and high: >60 mmol/L), calcium (low: <1.8 mmoL/L and high: >2.75 mmol/L), creatinine (low: <30 mmol/L and high: >160 mmol/L), glucose (low: <3 mmol/L and high: >9 mmol/L), potassium (low: <2.5 mmol/L and high: >5.5 mmol/L), sodium (low: <120 mmol/L and high: >160 mmol/L), total carbon dioxide content (low: <16 mmol/L and high: >35 mmol/L) and blood urea nitrogen (low: <3 mmol/L and high: >15 mmol/L). Number of participants with clinical chemistry abnormalities of potential clinical importance are presented.

Safety Population.

Urinalysis included dipstick urine test which was used to screen for glucose, ketones, occult blood and protein on Day 1 (pre-dose) and Day 8. The dipstick test gives results in a semi-quantitative manner, and results for urinalysis parameters of urine glucose, ketones, occult blood and protein can be read as Trace, 1+, 2+ and 3+, indicating proportional concentrations in the urine sample.

Safety Population.

Single 12-lead ECGs were obtained thereafter during the study, using an ECG machine that automatically calculated the heart rate and measured PR, QRS, QT, RR and corrected QT (QTc) intervals. Number of participants with ECG values of potential clinical importance are presented.

Safety Population.

Vital sign measurements included systolic and diastolic blood pressure, pulse rate, temperature and respiratory rate. Vital sign measurements were measured in a semi-recumbent or supine position after 5 minutes rest. The potential clinical concern range for systolic blood pressure: <85 and >160 millimeters of mercury, for diastolic: <45 and >100 millimeters of mercury and heart rate: <40 and >110 beats per minute. Number of participants with vital signs of potential clinical importance are presented.

Safety Population.

Oxygenation and function of gas exchange was assessed by the comparison of partial pressure of oxygen arterially (PaO2) divided by the fraction of oxygen that is being inspired (FiO2), sometimes referred to simply as the 'P to F ratio'. The P to F ratio was assessed at time points during the period of intubation and mechanical ventilation. An arterial blood sample was required for determination of the partial pressure of oxygen and the percentage of O2 which is being inspired was recorded at the corresponding time point. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value (on completion of surgery on Day 1) minus Baseline value.

PP1 Population.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay on Day 1 after completion of surgery. BAL biomarkers included soluble tumor necrosis factor receptor (STNFR) type I, free, STNFR type I, total, tumor necrosis factor alpha, interleukin 6, interleukin 8, interleukin 1 beta, monocyte chemotactic protein-1, macrophage inflammatory protein 1 alpha, macrophage inflammatory protein 1 beta, interleukin 10 and soluble receptor for advanced glycation end (sRAGE) products. Any value below limit of quantification was replaced with half the lower limit of quantification (LLQ) prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

PP1 Population.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay. BAL biomarkers included C-reactive protein and total proteins. Any value below limit of quantification was replaced with half the LLQ prior to deriving the summary measures. All BAL C-reactive protein samples were below limit of quantification and all were assigned to half the LLQ prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

PP1 Population.

Samples were collected to determine concentrations of biomarkers in BAL using an appropriately validated assay. BAL biomarkers included surfactant protein D and clara cell secretory protein. Any value below limit of quantification was replaced with half the LLQ prior to deriving the summary measures. Mean levels of BAL biomarkers on completion of surgery are presented. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

PP1 Population.

Oxygenation and function of gas exchange was assessed by the comparison of PaO2 divided by the FiO2, sometimes referred to simply as the 'P to F ratio'. The P to F ratio was assessed at time points during the period of intubation and mechanical ventilation. An arterial blood sample was required for determination of the partial pressure of oxygen and the percentage of O2 which is being inspired was recorded at the corresponding time point. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value (on completion of surgery on Day 1) minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X in the category titles.

PP1 Population.

PVPI is a derived value from EVLW, and is considered to be less variable than EVLWI. PVPI was measured via single-indicator transpulmonary thermodilution as long as the participant remained in the ICU with a patent indwelling PiCCO catheter. Baseline was Day 1 (immediately prior to start of surgery). Change from Baseline value was the post-Baseline value minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

PP1 Population.

EVLW refers to the fluid within the lung but outside the vascular compartment. It includes extravasated plasma, intracellular water, lymphatic fluid, and surfactant. EVLWI was measured by trans-pulmonary thermodilution via a PiCCO hemodynamic monitor. Change from Baseline value was the post-Baseline value minus Baseline value. PP1 Population was analyzed. Only those participants available at the specified time points were analyzed represented by n=X,X,X,X in the category titles.

PP1 Population.

The SOFA score defines the presence and severity of dysfunction within 6 organ systems (cardiovascular, respiratory, coagulation, liver, renal, and nervous system) with a value of "0" for assigned to normal function to a maximum value of "4" for severe dysfunction in each of the organ systems. Each component of the SOFA score was added together, ranging from "0" indicating no organ dysfunction in any of the 6 organ systems, to "24" indicating maximal organ dysfunction across all 6 organ systems. Per-Protocol (PP) 2 Population comprised of all the participants in the Safety population for whom the study drug actually received was the same one they were randomized to (study drug).

PP 2 Population.

Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points. Pharmacokinetic (PK) Population comprised of all participants in the Safety population for whom a pharmacokinetic sample (plasma and/or BAL) was obtained and analyzed.

PK Population.

Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points.

PK Population.

Half-life (t1⁄2) is the time required for a quantity to reduce to half its initial value. t1/2 was not determined in all cases due to insufficient data in the terminal phase. Blood samples for pharmacokinetic analysis of GSK2862277 were collected at the indicated time points. Only those participants available at the specified time points were analyzed represented by n=X,X in the category titles.

PK Population.

BAL sampling and plasma sampling was done on Day 1 (on completion of surgery). Raw summary statistics for the derived ratio were not produced. Only statistical modeling was performed that produced a posterior distribution for each treatment. Summary measure for the posterior distribution was the median. The quantity being modeled was the mean treatment effect (pooling data from BAL Collapsed and Ventilated Lungs). The standard deviation is capturing the dispersion of the estimate for the mean effect. Ratio of total protein (Ratio was derived from BAL and Plasma values) is presented.

PP1 Population.

Serum samples were obtained to determine incidence and titers of serum anti-GSK2862277 antibodies at the specified time points. The binding antibody detection assay was performed at the specified time points. Number of participants with positive immunogenicity results post-dosing is presented.

Safety Population.

BAL samples were collected on Day 1 (on completion of surgery) and BAL concentrations of GSK2862277 and derived PK parameters were determined. Only those participants available at the specified time points were analyzed.

PK Population.

Eligible participants received a single dose of matching placebo on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent ventilated lung BAL procedure on Day 1.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent collapsed lung BAL procedure on Day 1.

Eligible participants received a single dose of GSK2862277 26 mg on Day 1 via oral inhalation route over approximately 3 to 5 minutes; approximately 1 to 3 hours prior to scheduled surgery. After surgery, participants in this arm underwent ventilated lung BAL procedure on Day 1.