Skip to content

A Study to Evaluate the Efficacy and Safety of Remdesivir Plus Tocilizumab Compared With Remdesivir Plus Placebo in Hospitalized Participants With Severe COVID-19 Pneumonia

A Phase III, Randomized, Double-Blind, Multicenter Study to Evaluate the Efficacy and Safety of Remdesivir Plus Tocilizumab Compared With Remdesivir Plus Placebo in Hospitalized Patients With Severe COVID-19 Pneumonia

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04409262
Acronym
REMDACTA
Enrollment
649
Registered
2020-06-01
Start date
2020-06-16
Completion date
2021-03-08
Last updated
2022-02-14

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

Conditions

COVID-19 Pneumonia

Brief summary

This study will evaluate the efficacy and safety of combination therapy with remdesivir plus tocilizumab compared with remdesivir plus placebo in hospitalized patients with COVID-19 pneumonia.

Interventions

DRUGRemdesivir

Participants will receive intravenous (IV) RDV

DRUGTocilizumab

Participants will receive IV TCZ

DRUGPlacebo

Participants will receive IV placebo matched to TCZ

Sponsors

Gilead Sciences
CollaboratorINDUSTRY
Hoffmann-La Roche
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
12 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Hospitalized with COVID-19 pneumonia confirmed per a positive polymerase chain reaction (PCR) of any specimen (e.g., respiratory, blood, urine, stool, other bodily fluid) and evidenced by chest X-ray or CT scan * Requiring more than 6 L/min supplemental oxygen to maintain SpO2 \> 93% * Agrees to not participate in another clinical trial for the treatment of COVID-19 while participating in this study

Exclusion criteria

* Known severe allergic reactions to tocilizumab or other monoclonal antibodies * Known hypersensitivity to remdesivir, the metabolites, or formulation excipients * Active tuberculosis (TB) infection * Suspected active bacterial, fungal, viral, or other infection (besides COVID-19) * In the opinion of the investigator, progression to death is imminent and inevitable within the next 24 hours, irrespective of the provision of treatments * Treatment with immunosuppressive or immunomodulatory therapy (including tocilizumab) within the past 3 months * Concurrent treatment with other agents with actual or possible direct-acting antiviral activity against SARS-CoV-2 within 24 hours prior to study drug dosing. In addition, participants with prior or current treatment with \> 2 doses of remdesivir for COVID-19 are excluded * Participating in other drug clinical trials * Estimated glomerular filtration rate (eGFR) \< 30 mL/min (including patients receiving hemodialysis or hemofiltration) * Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \> 5 x upper limit of normal (ULN) detected within 24 hours of screening (according to local laboratory reference ranges) * Absolute neutrophil count (ANC) \< 1000/uL at screening * Platelet count \< 50,000/uL at screening * Body weight \< 40 kg * Treatment with an investigational drug within 5 half-lives or 30 days (whichever is longer) of randomization

Design outcomes

Primary

MeasureTime frameDescription
Time to Hospital Discharge or Ready for Discharge up to Day 28Up to Day 28Defined as days from randomization to hospital discharge or Ready for Discharge not followed by ordinal scale category \>1, hospital readmission or death. Hospital discharge or Ready for Discharge is defined as an ordinal score of 1 on the 7-point ordinal scale. Participants who die are censored at Day 28. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Secondary

MeasureTime frameDescription
Time to Mechanical Ventilation or Death up to Day 28Up to Day 28Time to Mechanical Ventilation or Death defined as the time from randomization to the first occurrence of death or mechanical ventilation. For participants already on mechanical ventilation at baseline, only death is counted as an event.
Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Day 14Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Time to Death up to Day 28Up to Day 28Time to death is defined as the time from randomization to death.
Time to Death up to Day 60Up to Day 60Time to death is defined as the time from randomization to death.
Time to Improvement of at Least 2 Categories Relative to Baseline on a 7-category Ordinal Scale of Clinical Status up to Day 28Up to Day 28Defined as time from randomization to the time when at least a 2-category improvement in the 7-category ordinal scale is observed. Patients who die are censored at day 28. Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Day 7Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Day 21Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Day 28Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Proportion of Participants Who Are Discharged or Ready for Discharge up to Day 28Up to Day 28Defined as hospital discharge or Ready for Discharge not followed by ordinal scale category \>1, hospital readmission or death. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Proportion of Participants Who Require Initiation of Mechanical Ventilation Post-baseline or Die up to Day 28Up to Day 28Participants already on mechanical ventilation at baseline are only counted as an event if death occurs.
Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Day 60Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death
Proportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)Day 28 and Day 60Day 28: Participants who withdraw or die prior to Day 28 are assumed to have required mechanical ventilation. Participants without mechanical ventilation prior to discharge are assumed not to have required mechanical ventilation unless they die by Day 28, which are counted as an event. Day 60: Participants who withdraw or die prior to Day 60 are assumed to have required mechanical ventilation. Participants without mechanical ventilation prior to discharge are assumed not to have required mechanical ventilation unless they die by Day 60, which are counted as an event.
Proportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)Day 28 and Day 60
Duration of Mechanical Ventilation (Participants Requiring Mechanical Ventilation at Baseline) up to Day 28Up to Day 28Participants who die by Day 28 are assigned a duration of 28 days.
Difference in Mortality at Days 14, 28, and 60Days 14, 28, and 60
Time to Recovery up to Day 28Up to Day 28Defined as the time from randomization to the time when an ordinal scale category of 2 (non-ICU hospital ward or ready for hospital ward not requiring supplemental oxygen) or better is observed, not followed by ordinal scale category \>2 or death. Participants who die are censored at day 28. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Other

MeasureTime frameDescription
Proportion of Participants With Any Post-Treatment InfectionUp to Day 60
Percentage of Participants With Adverse Events (AEs) Tabulated by SeverityUp to Day 60AEs were reported according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE). Grade 1: Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated Grade 2: Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate instrumental activities of daily living (ADL) Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care ADL Grade 4: Life-threatening consequences; urgent intervention indicated Grade 5: Death related to AE Participants are counted at the highest AE grade experienced.

Countries

Brazil, Russia, Spain, United States

Participant flow

Recruitment details

Participants with severe COVID-19 pneumonia

Participants by arm

ArmCount
Remdesivir + Placebo (RDV+PBO)
Participants were to receive a 200 mg intravenous (IV) loading dose of RDV, followed by one infusion of PBO on Day 1. Participants were then to be given a 100 mg once daily IV maintenance dose of RDV from Days 2-10, with discontinuation at discharge whether or not 10 days of RDV dosing were completed. One additional infusion of PBO was allowed 8-24 hours after the first for participants with sustained fever or clinically significant worsening of signs or symptoms.
215
Remdesivir + Tocilizumab (RDV+TCZ)
Participants were to receive a 200 mg intravenous (IV) loading dose of RDV, followed by one infusion of TCZ on Day 1. Participants were then to be given a 100 mg once daily IV maintenance dose of RDV from Days 2-10, with discontinuation at discharge whether or not 10 days of RDV dosing were completed. One additional infusion of TCZ was allowed 8-24 hours after the first for participants with sustained fever or clinically significant worsening of signs or symptoms.
434
Total649

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyAdverse Event02
Overall StudyDeath5597
Overall StudyLack of Staff01
Overall StudyLost to Follow-up1223
Overall StudyProtocol Violation31
Overall StudyWithdrawal by Subject510

Baseline characteristics

CharacteristicRemdesivir + Tocilizumab (RDV+TCZ)TotalRemdesivir + Placebo (RDV+PBO)
Age, Continuous60.1 Years
STANDARD_DEVIATION 13.3
59.5 Years
STANDARD_DEVIATION 13.4
58.2 Years
STANDARD_DEVIATION 13.6
Ethnicity (NIH/OMB)
Hispanic or Latino
209 Participants334 Participants125 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
208 Participants296 Participants88 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
17 Participants19 Participants2 Participants
Race (NIH/OMB)
American Indian or Alaska Native
4 Participants8 Participants4 Participants
Race (NIH/OMB)
Asian
17 Participants22 Participants5 Participants
Race (NIH/OMB)
Black or African American
52 Participants72 Participants20 Participants
Race (NIH/OMB)
More than one race
9 Participants11 Participants2 Participants
Race (NIH/OMB)
Native Hawaiian or Other Pacific Islander
7 Participants10 Participants3 Participants
Race (NIH/OMB)
Unknown or Not Reported
63 Participants90 Participants27 Participants
Race (NIH/OMB)
White
282 Participants436 Participants154 Participants
Sex: Female, Male
Female
167 Participants240 Participants73 Participants
Sex: Female, Male
Male
267 Participants409 Participants142 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
55 / 21397 / 429
other
Total, other adverse events
70 / 213144 / 429
serious
Total, serious adverse events
76 / 213141 / 429

Outcome results

Primary

Time to Hospital Discharge or Ready for Discharge up to Day 28

Defined as days from randomization to hospital discharge or Ready for Discharge not followed by ordinal scale category \>1, hospital readmission or death. Hospital discharge or Ready for Discharge is defined as an ordinal score of 1 on the 7-point ordinal scale. Participants who die are censored at Day 28. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Up to Day 28

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Hospital Discharge or Ready for Discharge up to Day 2814.0 days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Hospital Discharge or Ready for Discharge up to Day 2814.0 days
p-value: 0.741495% CI: [0.78, 1.19]Log Rank
Secondary

Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14

Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Day 14

Population: Two participants in the RDV+TCZ arm had no post-baseline clinical status data to Day 14 and were excluded from analysis for this endpoint.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 311.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 56.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 21.9 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 611.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 46.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 79.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 152.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 710.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 154.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 22.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 38.9 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 49.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 54.9 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 14Category 610.0 Percentage of Participants
p-value: 0.764895% CI: [0.77, 1.44]Regression, Logistic
Secondary

Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21

Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Day 21

Population: Two participants in the RDV+TCZ arm had no post-baseline clinical status data to Day 21 and were excluded from analysis for this endpoint.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 34.8 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 56.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 21.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 67.1 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 42.9 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 714.8 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 162.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 714.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 164.3 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 21.2 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 34.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 44.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 55.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 21Category 65.8 Percentage of Participants
p-value: 0.633195% CI: [0.78, 1.52]Regression, Logistic
Secondary

Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28

Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Day 28

Population: Two participants in the RDV+TCZ arm had no post-baseline clinical status data to Day 28 and were excluded from analysis for this endpoint.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 31.0 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 54.3 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 21.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 63.8 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 42.9 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 719.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 167.1 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 718.2 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 166.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 21.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 33.5 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 43.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 53.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 28Category 63.7 Percentage of Participants
p-value: 0.962295% CI: [0.7, 1.4]Regression, Logistic
Secondary

Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60

Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Day 60

Population: Two participants in the RDV+TCZ arm had no post-baseline clinical status data to Day 60 and were excluded from analysis for this endpoint.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 31.0 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 50.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 21.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 60 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 41.4 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 725.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 170.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 722.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 172.2 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 20.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 31.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 41.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 50.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 60Category 60.7 Percentage of Participants
p-value: 0.48595% CI: [0.79, 1.64]Regression, Logistic
Secondary

Clinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7

Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Day 7

Population: Two participants in the RDV+TCZ arm had no post-baseline clinical status data to Day 7 and were excluded from analysis for this endpoint.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 317.6 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 59.5 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 24.3 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 612.9 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 430.0 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 73.8 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 121.9 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 73.3 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 119.4 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 25.6 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 320.1 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 429.4 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 510.0 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationClinical Status as Assessed by the Investigator Using a 7-category Ordinal Scale of Clinical Status on Day 7Category 612.1 Percentage of participants
p-value: 0.956995% CI: [0.75, 1.35]Regression, Logistic
Secondary

Difference in Mortality at Days 14, 28, and 60

Time frame: Days 14, 28, and 60

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 149.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 2819.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 6025.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 1410.0 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 2818.1 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationDifference in Mortality at Days 14, 28, and 60Day 6022.6 Percentage of Participants
Comparison: Day 14p-value: 0.822295% CI: [-4.4, 5.6]Cochran-Mantel-Haenszel
Comparison: Day 28p-value: 0.694495% CI: [-7.8, 5.2]Cochran-Mantel-Haenszel
Comparison: Day 60p-value: 0.391995% CI: [-10.1, 4]Cochran-Mantel-Haenszel
Secondary

Duration of Mechanical Ventilation (Participants Requiring Mechanical Ventilation at Baseline) up to Day 28

Participants who die by Day 28 are assigned a duration of 28 days.

Time frame: Up to Day 28

Population: The analysis population for this endpoint included only participants on mechanical ventilation at baseline.

ArmMeasureValue (MEAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationDuration of Mechanical Ventilation (Participants Requiring Mechanical Ventilation at Baseline) up to Day 2816.7 Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationDuration of Mechanical Ventilation (Participants Requiring Mechanical Ventilation at Baseline) up to Day 2819.6 Days
p-value: 0.243495% CI: [-2.16, 8.38]Regression, Linear
Secondary

Proportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)

Day 28: Participants who withdraw or die prior to Day 28 are assumed to have required mechanical ventilation. Participants without mechanical ventilation prior to discharge are assumed not to have required mechanical ventilation unless they die by Day 28, which are counted as an event. Day 60: Participants who withdraw or die prior to Day 60 are assumed to have required mechanical ventilation. Participants without mechanical ventilation prior to discharge are assumed not to have required mechanical ventilation unless they die by Day 60, which are counted as an event.

Time frame: Day 28 and Day 60

Population: The analysis population for this endpoint included only participants not on mechanical ventilation at baseline

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)Day 2829.8 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)Day 6031.4 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)Day 2827.5 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Requiring Initiation of Mechanical Ventilation Post-baseline (Participants Who Did Not Require Mechanical Ventilation at Baseline)Day 6028.8 Percentage of Participants
Comparison: Day 28p-value: 0.591595% CI: [-10.2, 5.9]Cochran-Mantel-Haenszel
Comparison: Day 60p-value: 0.549495% CI: [-10.5, 5.6]Cochran-Mantel-Haenszel
Secondary

Proportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)

Time frame: Day 28 and Day 60

Population: The analysis population for this endpoint included only participants on mechanical ventilation at baseline.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)Day 2854.5 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)Day 6063.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)Day 2840.7 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Who Are Alive and Free of Respiratory Failure at Day 28 and Day 60 (Participants Requiring Mechanical Ventilation at Baseline)Day 6047.5 Percentage of Participants
Comparison: Day 28p-value: 0.25995% CI: [-37.4, 9.2]Cochran-Mantel-Haenszel
Comparison: Day 60p-value: 0.22995% CI: [-37, 7.8]Cochran-Mantel-Haenszel
Secondary

Proportion of Participants Who Are Discharged or Ready for Discharge up to Day 28

Defined as hospital discharge or Ready for Discharge not followed by ordinal scale category \>1, hospital readmission or death. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Up to Day 28

ArmMeasureValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Who Are Discharged or Ready for Discharge up to Day 2867.1 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Who Are Discharged or Ready for Discharge up to Day 2866.0 Percentage of participants
p-value: 0.769295% CI: [-8.7, 6.8]Cochran-Mantel-Haenszel
Secondary

Proportion of Participants Who Require Initiation of Mechanical Ventilation Post-baseline or Die up to Day 28

Participants already on mechanical ventilation at baseline are only counted as an event if death occurs.

Time frame: Up to Day 28

ArmMeasureValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants Who Require Initiation of Mechanical Ventilation Post-baseline or Die up to Day 2829.0 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants Who Require Initiation of Mechanical Ventilation Post-baseline or Die up to Day 2828.6 Percentage of participants
p-value: 0.933495% CI: [-7.8, 7.2]Cochran-Mantel-Haenszel
Secondary

Time to Death up to Day 28

Time to death is defined as the time from randomization to death.

Time frame: Up to Day 28

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Death up to Day 28NA Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Death up to Day 28NA Days
p-value: 0.786795% CI: [0.65, 1.39]Log Rank
Secondary

Time to Death up to Day 60

Time to death is defined as the time from randomization to death.

Time frame: Up to Day 60

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Death up to Day 60NA Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Death up to Day 60NA Days
p-value: 0.460295% CI: [0.63, 1.23]Log Rank
Secondary

Time to Improvement of at Least 2 Categories Relative to Baseline on a 7-category Ordinal Scale of Clinical Status up to Day 28

Defined as time from randomization to the time when at least a 2-category improvement in the 7-category ordinal scale is observed. Patients who die are censored at day 28. Clinical status was assessed by the investigator according to the following ordinal scale categories: 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Up to Day 28

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Improvement of at Least 2 Categories Relative to Baseline on a 7-category Ordinal Scale of Clinical Status up to Day 2811.0 Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Improvement of at Least 2 Categories Relative to Baseline on a 7-category Ordinal Scale of Clinical Status up to Day 2812.0 Days
p-value: 0.866495% CI: [0.8, 1.21]Log Rank
Secondary

Time to Mechanical Ventilation or Death up to Day 28

Time to Mechanical Ventilation or Death defined as the time from randomization to the first occurrence of death or mechanical ventilation. For participants already on mechanical ventilation at baseline, only death is counted as an event.

Time frame: Up to Day 28

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Mechanical Ventilation or Death up to Day 28NA Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Mechanical Ventilation or Death up to Day 28NA Days
p-value: 0.899395% CI: [0.72, 1.34]Log Rank
Secondary

Time to Recovery up to Day 28

Defined as the time from randomization to the time when an ordinal scale category of 2 (non-ICU hospital ward or ready for hospital ward not requiring supplemental oxygen) or better is observed, not followed by ordinal scale category \>2 or death. Participants who die are censored at day 28. 1. Discharged (or ready for discharge as evidenced by normal temperature and respiratory rate, and stable oxygen saturation on ambient air or \</= 2L supplemental oxygen) 2. Non-intensive care unit (ICU) hospital ward (or ready for hospital ward) not requiring supplemental oxygen 3. Non-ICU hospital ward (or ready for hospital ward) requiring supplemental oxygen 4. ICU or non-ICU hospital ward, requiring non-invasive ventilation or high-flow oxygen 5. ICU, requiring intubation and mechanical ventilation 6. ICU, requiring extracorporeal membrane oxygenation (ECMO) or mechanical ventilation and additional organ support (e.g., vasopressors, renal replacement therapy) 7. Death

Time frame: Up to Day 28

ArmMeasureValue (MEDIAN)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationTime to Recovery up to Day 2813.0 Days
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationTime to Recovery up to Day 2813.0 Days
p-value: 0.677895% CI: [0.78, 1.18]Log Rank
Other Pre-specified

Percentage of Participants With Adverse Events (AEs) Tabulated by Severity

AEs were reported according to the National Cancer Institute Common Terminology Criteria for Adverse Events (NCI CTCAE). Grade 1: Mild; asymptomatic or mild symptoms; clinical or diagnostic observations only; intervention not indicated Grade 2: Moderate; minimal, local or noninvasive intervention indicated; limiting age-appropriate instrumental activities of daily living (ADL) Grade 3: Severe or medically significant but not immediately life-threatening; hospitalization or prolongation of hospitalization indicated; disabling; limiting self care ADL Grade 4: Life-threatening consequences; urgent intervention indicated Grade 5: Death related to AE Participants are counted at the highest AE grade experienced.

Time frame: Up to Day 60

Population: Participants that only received RDV and did not receive TCZ/PBO were included in the RDV+PBO arm of the safety population.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 221.1 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 44.2 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 310.3 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 525.8 Percentage of participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 19.9 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 522.6 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 110.5 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 228.2 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 311.2 Percentage of participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationPercentage of Participants With Adverse Events (AEs) Tabulated by SeverityGrade 44.9 Percentage of participants
Other Pre-specified

Proportion of Participants With Any Post-Treatment Infection

Time frame: Up to Day 60

Population: Participants that only received RDV and did not receive TCZ/PBO were included in the RDV+PBO arm of the safety population.

ArmMeasureGroupValue (NUMBER)
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionSerious infections27.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionInfections35.7 Percentage of Participants
Remdesivir + Placebo (RDV+Placebo) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionOpportunistic infections2.3 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionSerious infections22.6 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionInfections33.3 Percentage of Participants
Remdesivir + Tocilizumab (RDV+TCZ) - mITT PopulationProportion of Participants With Any Post-Treatment InfectionOpportunistic infections1.4 Percentage of Participants

Source: ClinicalTrials.gov · Data processed: Feb 12, 2026