Proportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories Through Day 29
Ordinal scale categories include 8) Death and 7) Hospitalized, on Invasive Mechanical Ventilation or Extracorporeal Membrane Oxygenation (ECMO). Mechanical ventilation-free survival was assessed through Day 29, defined as the proportion of participants who had not died nor were hospitalized on invasive mechanical ventilation or ECMO from Day 1 through Day 29. Results are reported as Kaplan Meier estimates.
Time to Sustained Recovery
Day of sustained recovery is defined as the first day on which the participant satisfies 1 of the following 3 categories from the clinical status ordinal scale (and does not return to a score of = 4 up to and including Study Day 60): 1) Not hospitalized, no new or increased limitations on activities; 2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care.
Number of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15
The ordinal scale categories are defined as: 1) Not hospitalized, no new or increased limitations on activities; 2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care; 4) Hospitalized, not requiring new or increased supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 5) Hospitalized, requiring new or increased supplemental oxygen; 6) Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 8) Death.
Number of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29
The ordinal scale categories are defined as: 1) Not hospitalized, no new or increased limitations on activities; 2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care; 4) Hospitalized, not requiring new or increased supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 5) Hospitalized, requiring new or increased supplemental oxygen; 6) Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 8) Death.
Change From Baseline in C-Reactive Protein (CRP)
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Ferritin
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in D-dimer
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Fibrinogen
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Alanine Aminotransferase (ALT)
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Aspartate Transaminase (AST)
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Hemoglobin
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Creatinine
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in International Normalized Ratio (INR)
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Platelets
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Bilirubin
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in White Blood Cell (WBC)
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Neutrophils
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Eosinophils
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Basophils
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Lymphocytes
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Change From Baseline in Monocytes
Blood was collected at Days 1, 3, 5, 8, and 11 while participants were inpatient, and at Days 15 and 29, with the Day 1 assessment serving as baseline. Participants who had been discharged had blood collected if infection control measures allowed for in-person visits after discharge.
Number of Participants Reporting Grade 3 and 4 Clinical and/or Laboratory Adverse Events (AEs)
Grade 3 AEs are defined as events that interrupt usual activities of daily living, or significantly affects clinical status, or may require intensive therapeutic intervention. Severe events are usually incapacitating. Grade 4 AEs are defined as events that are potentially life threatening.
Number of Participants Reporting Serious Adverse Events (SAEs)
An SAE is defined as an AE or suspected adverse reaction that is considered serious if, in the view of either the investigator or the sponsor, it results in death, a life-threatening AE, inpatient hospitalization or prolongation of existing hospitalization, a persistent or significant incapacity or substantial disruption of the ability to conduct normal life functions, or a congenital anomaly/birth defect.
Number of Participants Who Discontinued or Temporarily Suspended Study Treatment
Discontinuation or temporary suspension of study product is defined as any episode of early discontinuation or interruption of study product administration.
Duration of Hospitalization
Duration of hospitalization is defined first as the total number of days hospitalized for COVID-19, including readmissions for COVID-19-related reasons. It is also calculated as the total number of days hospitalized, including any readmissions for any reason.
Days of New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use
Duration of new invasive mechanical ventilation/ECMO use was measured in days among participants not on invasive ventilation/ECMO at baseline who progressed to invasive ventilation/ECMO or died.
Days of Non-invasive Ventilation/High Flow Oxygen Use
Duration of non-invasive ventilation or high flow oxygen use was measured in days among participants who required non-invasive ventilation/high flow oxygen, invasive ventilation/ECMO or died.
Days of New Non-invasive Ventilation/High Flow Oxygen Use
Duration of new non-invasive ventilation or high flow oxygen use was measured in days among participants not on non-invasive ventilation/high flow oxygen at baseline who progressed to non-invasive ventilation/high flow oxygen, invasive ventilation/ECMO or died.
Number of Participants With New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use
New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use is defined as participants not on invasive ventilation/ECMO at baseline who progressed to invasive ventilation/ECMO or died during the study.
Number of Participants With New Non-invasive Ventilation/High Flow Oxygen Use
New Non-invasive Ventilation/High Flow Oxygen Use is defined as participants in the hospitalized requiring new or increased supplemental oxygen ordinal scale or below at baseline who progressed to non-invasive ventilation/high flow oxygen, invasive ventilation/ECMO or died during the study.
Mean Change in Ordinal Scale
The ordinal scale categories are defined as: 1) Not hospitalized, no new or increased limitations on activities;2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care; 4)Hospitalized, not requiring new or increased supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 5) Hospitalized, requiring new or increased supplemental oxygen; 6) Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 8) Death. A positive change indicates a worsening and a negative change is an improvement.
Proportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories at Day 29
Ordinal scale categories include 8) Death and 7) Hospitalized, on Invasive Mechanical Ventilation or Extracorporeal Membrane Oxygenation (ECMO). Defined as the proportion of participants who were alive and were not hospitalized on invasive mechanical ventilation or ECMO at the Day 29 visit.
14-day Participant Mortality
The mortality rate was determined as the proportion of participants who died by study Day 15. The proportions reported are Kaplan-Meier estimates.
28-day Participant Mortality
The mortality rate was determined as the proportion of participants who died by study Day 29. The proportions reported are Kaplan-Meier estimates.
59-day Participant Mortality
The mortality rate was determined as the proportion of participants who died by study Day 60. The proportions reported are Kaplan-Meier estimates.
Days of Supplemental Oxygen Use
Duration of supplemental oxygen use was measured in days among participants who required any supplemental oxygen, non-invasive ventilation/high flow oxygen, invasive ventilation/ECMO or died.
Time to an Improvement of One Category From Baseline Using an Ordinal Scale
The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 1) Not hospitalized, no new or increased limitations on activities; 2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care; 4) Hospitalized, not requiring new or increased supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 5) Hospitalized, requiring new or increased supplemental oxygen; 6) Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 8) Death.
Time to an Improvement of Two Categories From Baseline Using an Ordinal Scale
The ordinal scale is an assessment of the clinical status at the first assessment of a given study day. The scale is as follows: 1) Not hospitalized, no new or increased limitations on activities; 2) Not hospitalized, but new or increased limitation on activities and/or requiring new or increased home oxygen, CPAP, or BiPAP; 3) Hospitalized, not requiring new or increased supplemental oxygen - no longer requires ongoing medical care; 4) Hospitalized, not requiring new or increased supplemental oxygen - requiring ongoing medical care (COVID-19 related or otherwise); 5) Hospitalized, requiring new or increased supplemental oxygen; 6) Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices; 7) Hospitalized, on invasive mechanical ventilation or extracorporeal membrane oxygenation (ECMO); 8) Death.
Time to Death
The time death from study Day 1 to study Day 29, measured in days. The times reported are Kaplan-Meier estimates.
Days of Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use
Duration of invasive ventilation/ECMO was measured in days among participants who required invasive ventilation or died.