Number and Percent of Subjects Who Were Alive and Free of Respiratory Failure Prior to Day 7 and Day 28

Number and Percent of Subjects Who Were Alive and Free of Respiratory Failure Prior to Day 7 and Day 28

All-cause mortality at Day 7;Proportion of subjects alive and free of respiratory failure at Day 7;Proportion of subjects alive and free of respiratory failure at Day 28;Length hospitalized and free of respiratory failure from baseline to Day 7;Length hospitalized and free of respiratory failure from baseline to Day 28;Length of hospitalization from baseline to Day 28;Length of hospitalization from baseline to Day 7;Proportion of subjects who improve by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 28;Proportion of subjects who worsen by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 7;Proportion of subjects who worsen by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 28;Proportion of subjects who improve by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 7;All-cause mortality at Day 28;Length of ICU stay from baseline to Day 28;Number of subjects in each category of the NIAID 8-point ordinal scale at Day 7;Number of subjects in each category of the NIAID 8-point ordinal scale at Day 28;Time to return to prehospitalization oxygen requirement;Proportion of subjects who were discharged and remained free of respiratory failure prior to Day 7;Proportion of subjects who were discharged and remained free of respiratory failure prior to Day 28;Change in PaO2:FiO2 ratio from baseline to Day 7;Change in PaO2:FiO2 ratio from baseline to Day 28

All-cause mortality at Day 7;Proportion of subjects alive and free of respiratory failure at Day 7;Proportion of subjects alive and free of respiratory failure at Day 28;Length hospitalized and free of respiratory failure from baseline to Day 7;Length hospitalized and free of respiratory failure from baseline to Day 28;Length of hospitalization from baseline to Day 28;Length of hospitalization from baseline to Day 7;Proportion of subjects who improve by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 28;Proportion of subjects who worsen by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 7;Proportion of subjects who worsen by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 28;Proportion of subjects who improve by at least 2 categories on the NIAID 8-point ordinal scale from baseline to Day 7;All-cause mortality at Day 28;Length of ICU stay from baseline to Day 28;Number of subjects in each category of the NIAID 8-point ordinal scale at Day 7;Number of subjects in each category of the NIAID 8-point ordinal scale at Day 28;Time to return to prehospitalization oxygen requirement;Proportion of subjects who were discharged and remained free of respiratory failure prior to Day 7;Proportion of subjects who were discharged and remained free of respiratory failure prior to Day 28;Change in PaO2:FiO2 ratio from baseline to Day 7;Change in PaO2:FiO2 ratio from baseline to Day 28

Number of participants with any serious adverse event from baseline to Day 7;Number of participants with any treatment emergent adverse event from baseline to Day 28;Number of participants with any serious adverse event from baseline to Day 28;Number of participants with any treatment emergent adverse event from baseline to Day 7

Number of participants with any serious adverse event from baseline to Day 7;Number of participants with any treatment emergent adverse event from baseline to Day 28;Number of participants with any serious adverse event from baseline to Day 28;Number of participants with any treatment emergent adverse event from baseline to Day 7