Skip to content

Poractant Alfa (Curosurf®)) -- Effect in Adult Patients Diagnosed With 2019 Novel Coronavirus (SARS-COV-19; (Covid-19)) Acute Respiratory Distress Syndrome (ARDS)

Multicenter, Open-label, Randomised Trial to Assess the Efficacy and Tolerability of Poractant Alfa(Porcine Surfactant, Curosurf®) in Hospitalized Patients With SARS-COV-19 Acute Respiratory Distress Syndrome (ARDS)

Status
Terminated
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04502433
Enrollment
22
Registered
2020-08-06
Start date
2021-01-06
Completion date
2022-03-17
Last updated
2023-06-23

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Acute Respiratory Distress Syndrome

Keywords

acute respiratory distress syndrome, ARDS, Adults, Surfactant, Poractant alfa (porcine surfactant, Curosurf®),, Curosurf®, Coronavirus disease (COVID-19), Coronavirus 2019 Disease

Brief summary

The purpose of this study was to evaluate the efficacy and safety of poractant alfa (Curosurf®), administered by endotracheal (ET) instillation in hospitalized adult patients diagnosed with SARS-COV-19 acute respiratory distress syndrome (ARDS).

Detailed description

This was a multicentre, open-label, randomized phase II proof-of-concept study. The efficacy and safety of poractant alfa was evaluated in terms of ventilatory free days during the 21 days after randomization, in adult patients diagnosed with ARDS due to SARS-COV-19 infection. Each patient randomized to the study treatment received 3 administrations of Curosurf ® with a 24 hours dosing interval. The assessment collection was up to Day 28, when the evaluation occurred at the Intensive Care Unit (ICU), or by phone call if the patient has already been discharged. Seventy patients were planned to be randomized in the study with a ratio 3:2 (i.e. 42 patients in the poractant alfa arm and 28 in the control arm). The control arm population received Standard of Care (SoC). This study was conducted in United Kingdom (UK), United States of America (US), and Italy. Overall, 13 patients (Curosurf ® group) and 8 patients (control group) were randomised in the study. Due to low recruitment rate the study was terminated early for non-safety reasons. Curosurf® is a pulmonary surfactant of natural origin which, when delivered endotracheally (ET). Curosurf® is currently approved for marketing as treatment of premature neonates with RDS or at risk of Respiratory Distress Syndrome (RDS). Chiesi Farmaceutici S.p.A (Chiesi) conducted this study with its porcine-derived surfactant, Curosurf® (poractant alfa), to evaluate the efficacy and safety in ventilated adult patients who were critically unwell in intensive care with SARS-COV-19 ARDS.

Interventions

DRUGCUROSURF® (poractant alfa)

Three administrations with a 24 hours dosing interval. Each endotracheal (ET) administration 1, 2, and 3 consisted of poractant alfa bolus: 30mg /kg (Lean Body Weight-LBW) = 0.375ml /kg LBW, diluted with normal saline up to 2ml /kg LBW.

Sponsors

Chiesi Farmaceutici S.p.A.
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

Seventy patients will be randomized in the study with a ratio 3:2 (i.e. 42 patients in the poractant alfa arm and 28 in the control arm).

Eligibility

Sex/Gender
ALL
Age
18 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

Participants were eligible to be included in the study if the following criteria apply: 1. Male or female ≥18 and ≤ 80 years of age 2. Informed consent for participation in the study (refer to section 15 for detailed inform consent procedure) 3. Positive 2019-nCoV Reverse Transcription Polymerase Chain Reaction (rt-PCR) before randomisation 4. Arterial Partial Pressure of Oxygen/Fraction of Inspired Oxygen (PaO2/FiO2) ratio \< 150 mmHg 5. Lung compliance ≤45 ml/cmH20 6. Intubated and artificially ventilated less than 48 hours before the first poractant alfa administration

Exclusion criteria

Participants were excluded from the study if any of the following criteria apply: 1. Any contraindications to surfactant administration e.g., pulmonary hemorrhage and pneumothorax) 2. Weight \< 40kg 3. Stage 4 severe chronic kidney disease (i.e., Estimated Glomerular Filtration Rate (eGFR) \< 30) 4. Pregnancy 5. Administration of any nebulized surfactant in the 48 hours before the first poractant alfa administration 6. Extracorporeal membrane oxygenation (ECMO)

Design outcomes

Primary

MeasureTime frameDescription
Number of Days Alive and Ventilator-free Daysup to 21 daysThe number of days alive and ventilator-free days, defined as the number of days the patient is not receiving mechanical ventilation over the 21 days following randomisation. Mechanical ventilation was defined as invasive and non-invasive. The patient was defined as free of mechanical ventilation after 12 hours from the suspension of either invasive and non-invasive ventilation. Patients who died or were mechanically ventilated longer than this period were assessed as zero ventilator-free days.

Secondary

MeasureTime frameDescription
Number of Days Alive and Ventilator-Free at Day 28at Day 28The number of days alive and ventilator-free (i.e. free of any mechanical ventilation for at least 12 hours) at Day 28.
Mortality at Day 21 and Day 28at Day 21 and at Day 28Mortality at Day 21 and Day 28 of the study by treatment group.
Number of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28Day 21 and Day 28The number of days alive and free from invasive ventilation at Day 21 and Day 28 is presented by treatment group.
Number of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28Day 21 and Day 28The number of days alive and free from non-invasive ventilation at Day 21 and Day 28 is presented by treatment group.
Ventilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: Change from baseline in dynamic compliance (mL/cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Dynamic compliance: is the continuous measurement of pulmonary compliance calculated at each point representing schematic changes during rhythmic breathing. Dynamic compliance monitors both elastic and airway resistance.
Percentage of Patients With Improvement in Severity Status at Day 28 or Discharge (Severity Score: Mild, Moderate, Severe, or Death)Day 28 or Discharge, whichever comes firstThe severity status of patients at baseline and at Day 28/Discharge and the percentage of patients with improvement in severity status (i.e. a decrease of at least 1 point in severity status) at Day 28/Discharge relative to baseline is presented. Severity was assessed using a point score system: Severity score was defined as mild, moderate, severe (see below\*), or death and was based on PaO2/FiO2 ratio and patient status at Day 28/Discharge and numerically rated from 1-4, respectively. An improvement in severity was defined as a decrease of at least 1 point between baseline and Day 28/Discharge. At Day 28 the last follow up evaluation took place on the ICU if, still requiring critical care, or by phone call if the patient has been discharged from ICU by that time. \*Mild: 200 mmHg \< PaO2/FiO2 ratio ≤300 mmHg; Moderate: 100 mmHg \< PaO2/FiO2 ratio ≤200 mmHg; Severe: PaO2/FiO2 ratio ≤100 mmHg
Change From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepointup to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in PaO2/FiO2 ratio measured at each timepoint following administration of each dose in the treatment and control group. The change was calculated from two time points as the value at the later time point minus the value at baseline. Partial pressure of oxygen (PaO2) is the oxygen pressure in arterial blood. The fraction of inspired oxygen (FiO2) is the concentration of oxygen in the gas mixture. The fraction of inspired oxygen (PaO2/FiO2) ratio is widely used in ICUs as an indicator of oxygenation status.
Percentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepointup to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28The percentages of patients in categories of PaO2/FiO2 ratio improvement compared to baseline (\>20%) at all timepoints post-baseline are summarised by treatment group.
Change From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepointup to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28The FiO2 at baseline and at selected timepoints post-baseline was measured. Results are shown as changes from baseline, summarised by treatment group. The change was calculated from two time points as the value at the later time point minus the value at baseline. The unit for the variable is percent (%) and what is reported is an absolute change.
Length of ICU Stay (Days) at Day 28up to 28 daysThe length of ICU stay (days) at Day 28 is presented by treatment by treatment group. Patients who died or were mechanically ventilated longer than this period were assigned with 28 days.
Percentage of Patients Alive and Out of Intensive Care Unit (ICU) at Day 28Day 28The percentage of patients alive and out of ICU at Day 28 is presented by treatment group.
Delta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Day 3 and Day 28 or discharge -- whichever comes firstThe Sequential Organ Failure Assessment (SOFA) score is a scoring system that assesses the performance of several organ systems in the body. The SOFA score was used to determine the extent of organ failure at Day 3 and Day 28/Discharge with respect to a pre-randomisation assessment. The total score was derived from six sub-scores system categories: respiratory, neurological, cardiovascular, hepatic, coagulation, and renal systems; respective sub-scores were calculated primarily considering PaO2/FiO2 ratio, Glasgow Coma Scale, mean arterial pressure (MAP) or requirement for vasopressor administration, bilirubin levels, platelet levels and creatinine levels or daily urine output. A score of 0, 1, 2, 3, or 4) was assigned to each of the six system category. The total score ranged from 0 (min) to 24 (max) points. To be considered organ failure free, a patient had to have a score of 0.
Percentage of Patients Alive and Free of Respiratory Failure at Day 28at Day 28The percentage of patients alive and free of respiratory failure (i.e. without need for mechanical ventilation, extracorporeal membrane oxygenation (ECMO), non-invasive ventilation, or high-flow nasal cannula oxygen delivery) at Day 28.
Ventilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: Change from baseline in tidal volume (mL/kg BW) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle.
Ventilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: Change from baseline in respiratory rate (breaths/minute) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Respiratory rate is the number of breaths taken per minute.
Ventilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: static compliance -- change from baseline in static compliance (mL/cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Static Compliance: represents pulmonary compliance at a given fixed volume when there is no airflow, and muscles are relaxed.
Ventilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: Positive End-Expiratory Pressure -- Change from baseline in PEEP (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Positive end-expiratory pressure (PEEP) is the positive pressure that will remain in the airways at the end of the respiratory cycle (end of exhalation) that is greater than the atmospheric pressure in mechanically ventilated patients.
Ventilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28Ventilatory parameter: Peak Inspiratory Pressure -- Change from baseline in peak inspiratory pressure (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Peak inspiratory pressure (PIP) is the highest level of pressure applied to the lungs during inhalation. In mechanical ventilation the number reflects a positive pressure in centimetres of water pressure (cmH2O).
Ventilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Ventilatory parameter: Plateau Pressure -- Change from baseline in plateau pressure (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Plateau pressure is the pressure that is applied by the mechanical ventilator to the small airways and alveoli.
Blood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pHup to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in blood gas analysis acid-base balance parameters -- pH. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.
Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in blood gas analysis acid-base balance parameter -- pCO2. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.
Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in blood gas analysis acid-base balance parameter -- pO2. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.
Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in blood gas analysis acid-base balance parameter -- Bicarbonate (HCO3). The change was calculated from two time points as the value at the later time point minus the value at baseline. Measured at 6-12-24h after each poractant alfa administration up to 72 hours and at similar timepoints in the control group (6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation) and then every 24 hours till the patient is discharged from the ICU
Change From Baseline in Blood Parameter -- Lactateup to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28Change from baseline in blood parameter -- Lactate The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Arterial blood lactate was measured at 6, 12, 24, 30, 36, 48, 54, 60, and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.
Mortality -- TEAEs Leading to Deathup to day 28The incidence of treatment-emergent adverse event (TEAEs) leading to death is presented by treatment group.
Percentage of Patients Alive and Free of Organ Failure (SOFA Score=0)at day 28 or discharge -- whichever comes firstThe percentage of patients alive and organ failure free (defined as SOFA score=0) at Day 28/Discharge is presented by treatment group. The total score was derived from six sub-scores system categories: respiratory, neurological, cardiovascular, hepatic, coagulation, and renal systems; respective sub-scores were calculated primarily considering PaO2/FiO2 ratio, Glasgow Coma Scale, mean arterial pressure (MAP) or requirement for vasopressor administration, bilirubin levels, platelet levels and creatinine levels or daily urine output. A score of 0, 1, 2, 3, or 4) was assigned to each of the six system category. The total score ranged from 0 (min) to 24 (max) points. To be considered organ failure free, a patient had to have a score of 0.

Countries

Italy, United Kingdom, United States

Participant flow

Recruitment details

The planned 70 randomised patients in a 3:2 ratio, according to the inclusion and exclusion criteria. This was not achieved; owing to a global improvement in the pandemic situation in the countries where the study was performed (Italy, UK, US), patient recruitment was lower than expected (i.e. 22 patients were randomised, 14 patients and 8 patients in the poractant alfa and control groups, respectively); the study was terminated early before reaching the target sample size.

Participants by arm

ArmCount
Control Cohort
Patients receiving SoC
8
Poractant Alfa Treated Cohort
Patients treated with CUROSURF® (poractant alfa), as an add-on to standard-of-care (SoC)
13
Total21

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath24
Overall StudyLost to Follow-up10
Overall StudyPhysician Decision01

Baseline characteristics

CharacteristicPoractant Alfa Treated CohortTotalControl Cohort
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
6 Participants9 Participants3 Participants
Age, Categorical
Between 18 and 65 years
7 Participants12 Participants5 Participants
Age, Continuous63.6 years
STANDARD_DEVIATION 9.2
58.8 years
STANDARD_DEVIATION 14.4
51.0 years
STANDARD_DEVIATION 18.2
Arterial Partial Pressure of Oxygen/Fraction of inspired oxygen (PaO2/FiO2) ratio111.85 Ratio
STANDARD_DEVIATION 38.72
111.03 Ratio
STANDARD_DEVIATION 42.62
109.70 Ratio
STANDARD_DEVIATION 51.15
Body mass index (BMI)29.78 kg/m^2
STANDARD_DEVIATION 5.05
32.32 kg/m^2
STANDARD_DEVIATION 7.78
36.44 kg/m^2
STANDARD_DEVIATION 9.9
Fraction of inspired oxygen (FiO2)65.0 percentage of inspired oxygen
STANDARD_DEVIATION 23.2
67.1 percentage of inspired oxygen
STANDARD_DEVIATION 21.1
70.5 percentage of inspired oxygen
STANDARD_DEVIATION 18.1
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Asian
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Black or African American
0 Participants1 Participants1 Participants
Race (NIH/OMB)
More than one race
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
0 Participants0 Participants0 Participants
Race (NIH/OMB)
Unknown or Not Reported
1 Participants2 Participants1 Participants
Race (NIH/OMB)
White
12 Participants18 Participants6 Participants
Sequential Organ Failure Assessment (SOFA) score7.8 score
STANDARD_DEVIATION 4.6
7.5 score
STANDARD_DEVIATION 4.2
7.0 score
STANDARD_DEVIATION 3.5
Sex: Female, Male
Female
3 Participants5 Participants2 Participants
Sex: Female, Male
Male
10 Participants16 Participants6 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
2 / 84 / 13
other
Total, other adverse events
5 / 811 / 13
serious
Total, serious adverse events
3 / 85 / 13

Outcome results

Primary

Number of Days Alive and Ventilator-free Days

The number of days alive and ventilator-free days, defined as the number of days the patient is not receiving mechanical ventilation over the 21 days following randomisation. Mechanical ventilation was defined as invasive and non-invasive. The patient was defined as free of mechanical ventilation after 12 hours from the suspension of either invasive and non-invasive ventilation. Patients who died or were mechanically ventilated longer than this period were assessed as zero ventilator-free days.

Time frame: up to 21 days

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics.~Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (MEAN)Dispersion
Control CohortNumber of Days Alive and Ventilator-free Days4.8 daysStandard Deviation 6.6
Poractant Alfa Treated CohortNumber of Days Alive and Ventilator-free Days1.2 daysStandard Deviation 4.2
Secondary

Blood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH

Change from baseline in blood gas analysis acid-base balance parameters -- pH. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH48 hours0.0050 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH54 hours0.0500 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH12 hours0.0050 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH60 hours-0.0500 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH30 hours0.0300 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH72 hours0.0400 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH6 hours0.0000 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH28 day-0.0400 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH36 hours0.0050 pH
Control CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH24 hours0.0315 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH48 hours0.0300 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pHICU Discharge0.0450 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH6 hours0.0080 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH12 hours0.0100 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH24 hours0.0160 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH30 hours0.0100 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH36 hours0.0260 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH54 hours0.0185 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH60 hours0.0000 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH72 hours0.0120 pH
Poractant Alfa Treated CohortBlood Gas Analysis Acid-base Balance Parameters: Change From Baseline in Blood Gas Analysis Acid-base Balance Parameters -- pH28 day0.0500 pH
Secondary

Change From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint

Change from baseline in PaO2/FiO2 ratio measured at each timepoint following administration of each dose in the treatment and control group. The change was calculated from two time points as the value at the later time point minus the value at baseline. Partial pressure of oxygen (PaO2) is the oxygen pressure in arterial blood. The fraction of inspired oxygen (FiO2) is the concentration of oxygen in the gas mixture. The fraction of inspired oxygen (PaO2/FiO2) ratio is widely used in ICUs as an indicator of oxygenation status.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.~At each time point the number of patients that contributed with a result value is indicated for both study arms.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint6 hours7.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint12 hours23.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint24 hours31.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint30 hours70.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint36 hours11.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint48 hours24.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint54 hours78.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint60 hours0.00 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint72 hours-1.40 mmHg
Control CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint28 day53.50 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint36 hours31.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint6 hours13.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint72 hours-1.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint12 hours10.01 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint48 hours15.65 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint24 hours2.36 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint60 hours7.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint30 hours10.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint28 day20.00 mmHg
Poractant Alfa Treated CohortChange From Baseline in Arterial Partial Pressure of Oxygen / Fraction of Inspired Oxygen (PaO2/FiO2) Ratio at Each Timepoint54 hours25.07 mmHg
Secondary

Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)

Change from baseline in blood gas analysis acid-base balance parameter -- Bicarbonate (HCO3). The change was calculated from two time points as the value at the later time point minus the value at baseline. Measured at 6-12-24h after each poractant alfa administration up to 72 hours and at similar timepoints in the control group (6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation) and then every 24 hours till the patient is discharged from the ICU

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)48 hours1.60 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)12 hours1.10 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)54 hours0.80 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)30 hours2.30 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)60 hours3.30 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)72 hours3.00 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)6 hours1.05 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)28 day1.90 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)36 hours1.75 mmol/L
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)24 hours1.65 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)60 hours2.80 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)ICU Discharge-3.90 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)6 hours0.70 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)12 hours1.30 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)24 hours1.80 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)30 hours2.30 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)36 hours2.70 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)48 hours3.50 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)54 hours2.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)72 hours4.00 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Bicarbonate (HCO3)28 day13.20 mmol/L
Secondary

Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)

Change from baseline in blood gas analysis acid-base balance parameter -- pCO2. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)54 hours-0.600 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)60 hours3.400 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)72 hours0.000 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)28 day6.150 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)6 hours-2.210 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)12 hours-0.150 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)24 hours-2.610 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)30 hours-5.700 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)36 hours-3.350 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)48 hours2.500 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)48 hours0.300 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)12 hours1.730 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)36 hours1.720 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)60 hours-0.230 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)24 hours-2.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)72 hours0.750 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)54 hours-1.500 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)28 day12.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)ICU Discharge-9.600 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)30 hours1.880 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Carbon Dioxide (pCO2)6 hours1.535 mmHg
Secondary

Change From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)

Change from baseline in blood gas analysis acid-base balance parameter -- pO2. The change was calculated from two time points as the value at the later time point minus the value at baseline. Arterial blood gas was measured at 6, 12, 24, 30, 36, 48, 54, 60 and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)24 hours7.000 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)6 hours0.500 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)30 hours3.000 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)72 hours6.000 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)36 hours7.000 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)12 hours12.500 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)48 hours6.250 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)28 day8.100 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)54 hours4.300 mmHg
Control CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)60 hours15.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)48 hours0.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)54 hours2.250 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)60 hours0.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)72 hours5.100 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)28 day-7.700 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)ICU Discharge-10.730 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)6 hours6.550 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)12 hours1.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)24 hours1.100 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)30 hours2.000 mmHg
Poractant Alfa Treated CohortChange From Baseline in Blood Gas Analysis Acid-base Balance Parameter -- Partial Pressure of Oxygen (pO2)36 hours2.600 mmHg
Secondary

Change From Baseline in Blood Parameter -- Lactate

Change from baseline in blood parameter -- Lactate The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Arterial blood lactate was measured at 6, 12, 24, 30, 36, 48, 54, 60, and 72 hours after randomisation and up to Day 28 or till the patient was discharged from the ICU - whichever occurred earlier.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Blood Parameter -- Lactate48 hours-0.10 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate24 hours-0.10 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate54 hours0.25 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate12 hours0.55 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate60 hours0.10 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate30 hours0.30 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate72 hours-0.20 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate6 hours0.05 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate28 day-0.60 mmol/L
Control CohortChange From Baseline in Blood Parameter -- Lactate36 hours0.55 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate36 hours-0.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate28 day-0.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- LactateICU Discharge-2.30 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate6 hours-0.05 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate12 hours0.20 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate24 hours-0.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate30 hours0.00 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate48 hours-0.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate54 hours0.00 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate60 hours-0.10 mmol/L
Poractant Alfa Treated CohortChange From Baseline in Blood Parameter -- Lactate72 hours-0.10 mmol/L
Secondary

Change From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint

The FiO2 at baseline and at selected timepoints post-baseline was measured. Results are shown as changes from baseline, summarised by treatment group. The change was calculated from two time points as the value at the later time point minus the value at baseline. The unit for the variable is percent (%) and what is reported is an absolute change.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint24 hours0.0 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint30 hours-15.0 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint36 hours-10.0 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint6 hours-7.2 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint12 hours-2.5 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint48 hours-12.5 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint54 hours-12.5 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint60 hours2.5 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint72 hours-4.9 percent (absolute change)
Control CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint28 day-14.3 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint60 hours-5.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint24 hours0.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint48 hours0.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint30 hours-5.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint28 day-7.5 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint54 hours-5.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint6 hours0.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint72 hours0.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint12 hours-5.0 percent (absolute change)
Poractant Alfa Treated CohortChange From Baseline in Fraction of Inspired Oxygen (FiO2) at Each Timepoint36 hours-10.0 percent (absolute change)
Secondary

Delta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28

The Sequential Organ Failure Assessment (SOFA) score is a scoring system that assesses the performance of several organ systems in the body. The SOFA score was used to determine the extent of organ failure at Day 3 and Day 28/Discharge with respect to a pre-randomisation assessment. The total score was derived from six sub-scores system categories: respiratory, neurological, cardiovascular, hepatic, coagulation, and renal systems; respective sub-scores were calculated primarily considering PaO2/FiO2 ratio, Glasgow Coma Scale, mean arterial pressure (MAP) or requirement for vasopressor administration, bilirubin levels, platelet levels and creatinine levels or daily urine output. A score of 0, 1, 2, 3, or 4) was assigned to each of the six system category. The total score ranged from 0 (min) to 24 (max) points. To be considered organ failure free, a patient had to have a score of 0.

Time frame: Day 3 and Day 28 or discharge -- whichever comes first

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28SOFA score -- Day 28 / Discharge-1.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Coagulatory system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Respiratory system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Hepatic system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Respiratory system score -- Day 28 / Discharge-1.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Hepatic system score -- Day 28 / Discharge0.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Neurological system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Renal system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Neurological system score -- Day 28 / Discharge-2.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Renal system score -- Day 28 / Discharge0.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Cardiovascular system score -- Day 30.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28SOFA score -- Day 30.5 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Cardiovascular system score -- Day 28 / Discharge0.0 score on a scale
Control CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Coagulatory system score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Cardiovascular system score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Hepatic system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Hepatic system score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Coagulatory system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Coagulatory system score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Renal system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28SOFA score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28SOFA score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Respiratory system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Respiratory system score -- Day 28 / Discharge-0.5 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Neurological system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Neurological system score -- Day 28 / Discharge0.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Cardiovascular system score -- Day 30.0 score on a scale
Poractant Alfa Treated CohortDelta Sequential Organ Failure Assessment (SOFA) Score and Sub-component Measure at Day 3 and Day 28Renal system score -- Day 28 / Discharge0.0 score on a scale
Secondary

Length of ICU Stay (Days) at Day 28

The length of ICU stay (days) at Day 28 is presented by treatment by treatment group. Patients who died or were mechanically ventilated longer than this period were assigned with 28 days.

Time frame: up to 28 days

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (MEDIAN)
Control CohortLength of ICU Stay (Days) at Day 2828.0 days
Poractant Alfa Treated CohortLength of ICU Stay (Days) at Day 2828.0 days
Secondary

Mortality at Day 21 and Day 28

Mortality at Day 21 and Day 28 of the study by treatment group.

Time frame: at Day 21 and at Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Control CohortMortality at Day 21 and Day 28Dead at Day 212 Participants
Control CohortMortality at Day 21 and Day 28Dead at Day 282 Participants
Poractant Alfa Treated CohortMortality at Day 21 and Day 28Dead at Day 214 Participants
Poractant Alfa Treated CohortMortality at Day 21 and Day 28Dead at Day 284 Participants
Secondary

Mortality -- TEAEs Leading to Death

The incidence of treatment-emergent adverse event (TEAEs) leading to death is presented by treatment group.

Time frame: up to day 28

Population: Safety Population: all randomised patients (who received at least one dose of the study treatment if poractant alfa-treated).

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Control CohortMortality -- TEAEs Leading to Death2 Participants
Poractant Alfa Treated CohortMortality -- TEAEs Leading to Death3 Participants
Secondary

Number of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28

The number of days alive and free from invasive ventilation at Day 21 and Day 28 is presented by treatment group.

Time frame: Day 21 and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortNumber of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28Days alive and free from invasive ventilation at Day 210 days
Control CohortNumber of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28Days alive and free from invasive ventilation at Day 280 days
Poractant Alfa Treated CohortNumber of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28Days alive and free from invasive ventilation at Day 210 days
Poractant Alfa Treated CohortNumber of Days Alive and Free From Invasive Ventilation at Day 21 and Day 28Days alive and free from invasive ventilation at Day 280 days
Secondary

Number of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28

The number of days alive and free from non-invasive ventilation at Day 21 and Day 28 is presented by treatment group.

Time frame: Day 21 and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortNumber of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28Days alive and free from non-invasive ventilation at Day 2112.5 days
Control CohortNumber of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28Days alive and free from non-invasive ventilation at Day 2819.5 days
Poractant Alfa Treated CohortNumber of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28Days alive and free from non-invasive ventilation at Day 2121.0 days
Poractant Alfa Treated CohortNumber of Days Alive and Free From Non-Invasive Ventilation at Day 21 and Day 28Days alive and free from non-invasive ventilation at Day 2828.0 days
Secondary

Number of Days Alive and Ventilator-Free at Day 28

The number of days alive and ventilator-free (i.e. free of any mechanical ventilation for at least 12 hours) at Day 28.

Time frame: at Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (MEAN)Dispersion
Control CohortNumber of Days Alive and Ventilator-Free at Day 287.4 daysStandard Deviation 10.2
Poractant Alfa Treated CohortNumber of Days Alive and Ventilator-Free at Day 281.7 daysStandard Deviation 6.1
Secondary

Percentage of Patients Alive and Free of Organ Failure (SOFA Score=0)

The percentage of patients alive and organ failure free (defined as SOFA score=0) at Day 28/Discharge is presented by treatment group. The total score was derived from six sub-scores system categories: respiratory, neurological, cardiovascular, hepatic, coagulation, and renal systems; respective sub-scores were calculated primarily considering PaO2/FiO2 ratio, Glasgow Coma Scale, mean arterial pressure (MAP) or requirement for vasopressor administration, bilirubin levels, platelet levels and creatinine levels or daily urine output. A score of 0, 1, 2, 3, or 4) was assigned to each of the six system category. The total score ranged from 0 (min) to 24 (max) points. To be considered organ failure free, a patient had to have a score of 0.

Time frame: at day 28 or discharge -- whichever comes first

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (NUMBER)
Control CohortPercentage of Patients Alive and Free of Organ Failure (SOFA Score=0)0 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and Free of Organ Failure (SOFA Score=0)0 percentage of participants
Secondary

Percentage of Patients Alive and Free of Respiratory Failure at Day 28

The percentage of patients alive and free of respiratory failure (i.e. without need for mechanical ventilation, extracorporeal membrane oxygenation (ECMO), non-invasive ventilation, or high-flow nasal cannula oxygen delivery) at Day 28.

Time frame: at Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics.~Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (NUMBER)
Control CohortPercentage of Patients Alive and Free of Respiratory Failure at Day 2825.0 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and Free of Respiratory Failure at Day 2815.4 percentage of participants
Secondary

Percentage of Patients Alive and Out of Intensive Care Unit (ICU) at Day 28

The percentage of patients alive and out of ICU at Day 28 is presented by treatment group.

Time frame: Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (NUMBER)
Control CohortPercentage of Patients Alive and Out of Intensive Care Unit (ICU) at Day 2837.5 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and Out of Intensive Care Unit (ICU) at Day 287.7 percentage of participants
Secondary

Percentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint

The percentages of patients in categories of PaO2/FiO2 ratio improvement compared to baseline (\>20%) at all timepoints post-baseline are summarised by treatment group.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (NUMBER)
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint6 hours37.5 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint12 hours62.5 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint24 hours50.0 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint30 hours57.1 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint36 hours50.0 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint48 hours50.0 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint54 hours71.4 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint60 hours28.6 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint72 hours14.3 percentage of participants
Control CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint28 day25.0 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint60 hours38.5 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint6 hours46.2 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint48 hours46.2 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint12 hours41.7 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint28 day27.3 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint24 hours38.5 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint54 hours58.3 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint30 hours38.5 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint72 hours33.3 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients Alive and With PaO2/FiO2 Ratio Improvement >20% Compared to Baseline at Each Timepoint36 hours53.8 percentage of participants
Secondary

Percentage of Patients With Improvement in Severity Status at Day 28 or Discharge (Severity Score: Mild, Moderate, Severe, or Death)

The severity status of patients at baseline and at Day 28/Discharge and the percentage of patients with improvement in severity status (i.e. a decrease of at least 1 point in severity status) at Day 28/Discharge relative to baseline is presented. Severity was assessed using a point score system: Severity score was defined as mild, moderate, severe (see below\*), or death and was based on PaO2/FiO2 ratio and patient status at Day 28/Discharge and numerically rated from 1-4, respectively. An improvement in severity was defined as a decrease of at least 1 point between baseline and Day 28/Discharge. At Day 28 the last follow up evaluation took place on the ICU if, still requiring critical care, or by phone call if the patient has been discharged from ICU by that time. \*Mild: 200 mmHg \< PaO2/FiO2 ratio ≤300 mmHg; Moderate: 100 mmHg \< PaO2/FiO2 ratio ≤200 mmHg; Severe: PaO2/FiO2 ratio ≤100 mmHg

Time frame: Day 28 or Discharge, whichever comes first

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureValue (NUMBER)
Control CohortPercentage of Patients With Improvement in Severity Status at Day 28 or Discharge (Severity Score: Mild, Moderate, Severe, or Death)50.0 percentage of participants
Poractant Alfa Treated CohortPercentage of Patients With Improvement in Severity Status at Day 28 or Discharge (Severity Score: Mild, Moderate, Severe, or Death)25.0 percentage of participants
Secondary

Ventilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Change from baseline in dynamic compliance (mL/cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Dynamic compliance: is the continuous measurement of pulmonary compliance calculated at each point representing schematic changes during rhythmic breathing. Dynamic compliance monitors both elastic and airway resistance.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.~At each time point the number of patients that contributed with a result value is indicated for both study arms.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-5.25 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours-1.0 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.50 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours1.20 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours7.50 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours3.00 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours2.00 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours1.80 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.85 mL/cmH2O
Control CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours-1.25 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours0.98 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-3.10 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours2.25 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.70 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours0.0 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours-0.70 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours0.52 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours-0.55 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-0.05 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Dynamic Compliance -- Change From Baseline in Dynamic Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours1.30 mL/cmH2O
Secondary

Ventilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Peak Inspiratory Pressure -- Change from baseline in peak inspiratory pressure (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Peak inspiratory pressure (PIP) is the highest level of pressure applied to the lungs during inhalation. In mechanical ventilation the number reflects a positive pressure in centimetres of water pressure (cmH2O).

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours2.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours3.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours1.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours0.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours2.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours3.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.00 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours4.50 cmH2O
Control CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day4.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours-3.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours-0.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-4.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours-2.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours-1.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-3.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-2.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Peak Inspiratory Pressure -- Change From Baseline in Peak Inspiratory Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours-3.00 cmH2O
Secondary

Ventilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Plateau Pressure -- Change from baseline in plateau pressure (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Plateau pressure is the pressure that is applied by the mechanical ventilator to the small airways and alveoli.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation, and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours1.25 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours2.00 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours0.50 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours0.00 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours1.00 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day2.00 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours3.00 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours1.50 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.50 cmH2O
Control CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours1.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours-3.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours-1.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-4.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours-1.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours-3.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours-1.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-3.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-2.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours-2.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Plateau Pressure -- Change From Baseline in Plateau Pressure (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours-3.00 cmH2O
Secondary

Ventilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Positive End-Expiratory Pressure -- Change from baseline in PEEP (cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Positive end-expiratory pressure (PEEP) is the positive pressure that will remain in the airways at the end of the respiratory cycle (end of exhalation) that is greater than the atmospheric pressure in mechanically ventilated patients.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours0.00 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.00 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours-0.50 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.50 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-0.45 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours0.00 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours-1.00 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-3.20 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours2.00 cmH2O
Control CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours0.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours-0.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-0.50 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-2.00 cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Positive End-Expiratory Pressure (PEEP) -- Change From Baseline in PEEP (cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours0.00 cmH2O
Secondary

Ventilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Change from baseline in respiratory rate (breaths/minute) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Respiratory rate is the number of breaths taken per minute.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours0.00 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours1.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day10.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours2.50 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours4.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours1.0 breaths/minute
Control CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours1.50 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day14.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours0.00 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours0.0 breaths/minute
Poractant Alfa Treated CohortVentilatory Parameter: Respiratory Rate -- Change From Baseline in Respiratory Rate (Breaths/Minute) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.0 breaths/minute
Secondary

Ventilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: static compliance -- change from baseline in static compliance (mL/cmH2O) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. At each time point the number of patients that contributed with a result value is indicated for both study arms. Static Compliance: represents pulmonary compliance at a given fixed volume when there is no airflow, and muscles are relaxed.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours-2.00 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours0.15 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours1.54 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours7.00 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours2.50 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours1.80 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours0.85 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-3.50 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours3.00 mL/cmH2O
Control CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-24.50 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-0.40 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours0.40 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-2.70 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours-0.81 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours-0.40 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-0.40 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours1.30 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours-0.26 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours2.10 mL/cmH2O
Poractant Alfa Treated CohortVentilatory Parameter: Static Compliance -- Change From Baseline in Static Compliance (mL/cmH2O) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours0.30 mL/cmH2O
Secondary

Ventilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 28

Ventilatory parameter: Change from baseline in tidal volume (mL/kg BW) at all timepoints up to Day 3 (72 hours) and at Day 28. The change was calculated from two time points as the value at the later time point minus the value at baseline. Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle.

Time frame: up to 28 days: 6, 12, 24, 30, 36, 48, 54, 60, 72 hours after randomisation and Day 28

Population: Intention-to-Treat (ITT) population: all randomised patients who had at least one available evaluation of efficacy after baseline.~Data was summarised by treatment group using, descriptive statistics. Due to low recruitment rate the study was terminated early for non-safety reasons.

ArmMeasureGroupValue (MEDIAN)
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours1.50 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours4.50 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours15.00 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours61.00 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours54.50 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-34.00 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours7.00 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours-8.00 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours73.50 mL/kg BW
Control CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day5.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2860 hours17.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 286 hours-1.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2848 hours-17.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2812 hours13.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2828 day-90.50 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2824 hours0.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2854 hours30.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2830 hours-18.00 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2872 hours11.50 mL/kg BW
Poractant Alfa Treated CohortVentilatory Parameter: Tidal Volume -- Change From Baseline in Tidal Volume (mL/kg BW) at All Timepoints up to Day 3 (72 Hours) and at Day 2836 hours13.40 mL/kg BW

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026