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ACTIV-5 / Big Effect Trial (BET-A) for the Treatment of COVID-19

A Multicenter Platform Trial of Putative Therapeutics for the Treatment of COVID-19 in Hospitalized Adults

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04583956
Enrollment
214
Registered
2020-10-12
Start date
2020-10-23
Completion date
2021-09-13
Last updated
2023-05-16

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

Conditions

COVID-19

Keywords

Adults, COVID-19, Multicenter, Platform, Putative, Therapeutics

Brief summary

This is a platform trial to conduct a series of randomized, double-blind, placebo-controlled trials using common assessments and endpoints in hospitalized adults diagnosed with Coronavirus Disease 2019 (COVID-19). Big Effect Trial (BET) is a proof-of-concept study with the intent of identifying promising treatments to enter a more definitive study. The study will be conducted in up to 70 domestic sites and 5 international sites. The study will compare different investigational therapeutic agents to a common control arm and determine which have relatively large effects. In order to maintain the double blind, each intervention will have a matched placebo. However, the control arm will be shared between interventions and may include participants receiving the matched placebo for a different intervention. The goal is not to determine clear statistical significance for an intervention, but rather to determine which products have clinical data suggestive of efficacy and should be moved quickly into larger studies. Estimates produced from BET will provide an improved basis for designing the larger trial, in terms of sample size and endpoint selection. Products with little indication of efficacy will be dropped on the basis of interim evaluations. In addition, some interventions may be discontinued on the basis of interim futility or efficacy analyses. One or more interventions may be started at any time. The number of interventions enrolling are programmatic decisions and will be based on the number of sites and the pace of enrollment. At the time of enrollment, subjects will be randomized to receive any one of the active arms they are eligible for or placebo. Approximately 200 (100 treatment and 100 shared placebo) subjects will be assigned to each arm entering the platform and a given site will generally have no more than 3 interventions at once. The BET-A stage will evaluate the combination of remdesivir with risankizumab vs remdesivir with a risankizumab placebo. The primary objective is to evaluate the clinical efficacy of different investigational therapeutics relative to the control arm in adults hospitalized with COVID-19 according to clinical status (8-point ordinal scale) at Day 8.

Detailed description

This is a platform trial to conduct a series of randomized, double-blind, placebo-controlled trials using common assessments and endpoints in hospitalized adults diagnosed with Coronavirus Disease 2019 (COVID-19). Big Effect Trial (BET) is a proof-of-concept study with the intent of identifying promising treatments to enter a more definitive study. The study will be conducted in up to 70 domestic sites and 5 international sites. The study will compare different investigational therapeutic agents to a common control arm and determine which have relatively large effects. In order to maintain the double blind, each intervention will have a matched placebo. However, the control arm will be shared between interventions and may include participants receiving the matched placebo for a different intervention. The goal is not to determine clear statistical significance for an intervention, but rather to determine which products have clinical data suggestive of efficacy and should be moved quickly into larger studies. Estimates produced from BET will provide an improved basis for designing the larger trial, in terms of sample size and endpoint selection. Products with little indication of efficacy will be dropped on the basis of interim evaluations. In addition, some interventions may be discontinued on the basis of interim futility or efficacy analyses. One or more interventions may be started at any time. The number of interventions enrolling are programmatic decisions and will be based on the number of sites and the pace of enrollment. At the time of enrollment, subjects will be randomized to receive any one of the active arms they are eligible for or placebo. Approximately 200 (100 treatment and 100 shared placebo) subjects will be assigned to each arm entering the platform and a given site will generally have no more than 3 interventions at once. The BET-A stage will evaluate the combination of remdesivir with risankizumab vs remdesivir with a risankizumab placebo. Subjects will be assessed daily while hospitalized. Once subjects are discharged from the hospital, they will have a study visit at Days 8, 15, 22, 29, and 60 as an outpatient. The Day 8, Day 22 and Day 60 visits do not have laboratory tests or collection of samples and may be conducted by phone. All subjects will undergo a series of efficacy and safety laboratory assessments. Safety laboratory tests and blood (serum and plasma) research samples and oropharyngeal (OP) swabs will be obtained on Day 1 (prior to study product administration) and Days 3, 5, 8, and 11 while hospitalized. OP swabs (oropharyngeal swabs are preferred, but if these are not obtainable, saliva or nasopharyngeal or nasal swabs may be substituted) and blood research samples plus safety laboratory tests will be collected on Day 15 and 29 if the subject attends an in-person visit or is still hospitalized. However, if infection control considerations or other restrictions prevent the subject from returning to the clinic, Day 15 and 29 visits may be conducted by phone and only clinical data will be obtained. The primary objective is to evaluate the clinical efficacy of different investigational therapeutics relative to the control arm in adults hospitalized with COVID-19 according to clinical status (8-point ordinal scale) at Day 8. The key secondary objectives are 1) to evaluate the clinical efficacy of different investigational therapeutics as assessed by time to recovery compared to the control arm, and 2) to evaluate the proportion of subjects alive and without respiratory failure through Day 29. Contacts: 20-0013 Central Contact Telephone: 1 (301) 7617948 Email: DMIDClinicalTrials@niaid.nih.gov

Interventions

OTHERPlacebo

Risankizumab placebo will be given at an equal volume at the same schedule.

DRUGRemdesivir

Remdesivir is a single diastereomer monophosphoramidate prodrug for the intracellular delivery of a modified adenine nucleoside analog GS-441524.

BIOLOGICALRisankizumab

Risankizumab is a humanized immunoglobulin (Ig) G1 antagonistic monoclonal antibody (mAb) directed against the p19 subunit of the human cytokine interleukin-23. Risankizumab is formulated in a buffer of 4.4 mM disodium succinate hexahydrate/succinic acid, 225 mM sorbitol, 0.2 mg/mL polysorbate 20, and WFI in a 6R vial.

Sponsors

National Institute of Allergy and Infectious Diseases (NIAID)
Lead SponsorNIH

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 99 Years
Healthy volunteers
No

Inclusion criteria

1. Admitted to a hospital with symptoms suggestive of Coronavirus Disease 2019 (COVID-19) and requires ongoing medical care. 2. Subject (or legally authorized representative) provides informed consent prior to initiation of any study procedures. 3. Subject (or legally authorized representative) understands and agrees to comply with planned study procedures. 4. Male or non-pregnant female adult \>/= 18 years of age at time of enrollment. 5. Illness of any duration and has laboratory-confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection as determined by polymerase chain reaction (PCR) or other commercial or public health assay (e.g., Nucleic Acid Amplification Test \[NAAT\], antigen test) in any respiratory specimen or saliva \</=14 days prior to randomization. 6. Illness of any duration, and requiring, just prior to randomization, supplemental oxygen (any flow), mechanical ventilation or ECMO (ordinal score 5, 6, or 7). 7. Women of childbearing potential must agree to either abstinence or use at least one acceptable method of contraception from the time of screening through 5 months post study IP dosing. Note: Acceptable methods include barrier contraceptives (condoms or diaphragm) with spermicide, intrauterine devices (IUDs), hormonal contraceptives, oral contraceptive pills, and surgical sterilization. 8. Agrees not to participate in another blinded clinical trial (both pharmacologic and other types of interventions) for the treatment of COVID-19 through Day 29.

Exclusion criteria

1. Alanine aminotransferase (ALT) or aspartate aminotransferase (AST) \> 5 times the upper limit of normal. 2. Subjects with a low glomerular filtration rate (eGFR), specifically: 1. Subjects with an a glomerular filtration rate (eGFR) 20-30 mL/min are excluded unless in the opinion of the principal investigator (PI), the potential benefit of participation outweighs the potential risk of study participation. 2. All subjects with an a glomerular filtration rate (eGFR) \<20 mL/min (including hemodialysis and hemofiltration) are excluded. 3. Pregnancy or breast feeding. 4. Anticipated discharge from the hospital or transfer to another hospital which is not a study site within 72 hours of enrollment. 5. Allergy to any study medication. 6. Received five or more doses of remdesivir prior to screening. 7. Received two or more doses of \> 60 mg of prednisone or equivalent in the 7 days prior to screening. 8. Received small molecule tyrosine kinase inhibitors, including Janus kinase (JAK) inhibitors (e.g., baricitinib, ibrutinib, acalabrutinib, imatinib, gefitinib), in the 4 weeks prior to screening. 9. Received monoclonal antibodies targeting cytokines (e.g., tumor necrosis factor (TNF) inhibitors, anti-IL-1 \[e.g., anakinra, canakinumab\], anti-IL-6 \[e.g., tocilizumab, sarilumab, sitlukimab\]), or T-cells (e.g., abatacept) in the 4 weeks prior to screening. 10. Received monoclonal antibodies targeting B-cells (e.g., rituximab, and including any targeting multiple cell lines including B-cells) in the 3 months prior to screening. 11. Received Granulocyte-macrophage colony-stimulating factor (GM-CSF) agents (e.g., sargramostim) within 2 months prior to screening. 12. Received other immunosuppressants in the 4 weeks prior to screening and in the judgment of the investigator, the risk of immunosuppression with risankizumab is larger than the risk of Coronavirus Disease 2019 (COVID-19). 13. Received any live vaccine in the 4 weeks prior to screening. 14. Known active tuberculosis. 15. Known history of Human Immunodeficiency Virus (HIV), Hepatitis B (HBV) or untreated hepatitis C (HCV) infection. 16. History of pulmonary alveolar proteinosis (PAP). 17. Has a malignancy and currently receiving immunosuppressive chemotherapy, immunodeficiency, uncontrolled opportunistic infection, or uncontrolled cirrhosis. 18. Has a medical condition that could, in the judgment of the investigator, limit the interpretation and generalizability of trial results. 19. Positive test for influenza virus during the current illness (influenza testing is not required by protocol). 20. Previous participation in an ACTIV-5/Big Effect Trial (BET)

Design outcomes

Primary

MeasureTime frameDescription
Number of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Day 8The 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.

Secondary

MeasureTime frameDescription
Time to Sustained RecoveryDay 1 through Day 60Day 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 15Day 15The 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 29Day 29The 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)Days 1, 3, 5, 8, 11, 15, 29Blood 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 FerritinDays 1, 3, 5, 8, 11, 15, 29Blood 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-dimerDays 1, 3, 5, 8, 11, 15, 29Blood 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 FibrinogenDays 1, 3, 5, 8, 11, 15, 29Blood 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)Days 1, 3, 5, 8, 11, 15, 29Blood 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)Days 1, 3, 5, 8, 11, 15, 29Blood 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 HemoglobinDays 1, 3, 5, 8, 11, 15, 29Blood 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 CreatinineDays 1, 3, 5, 8, 11, 15, 29Blood 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)Days 1, 3, 5, 8, 11, 15, 29Blood 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 PlateletsDays 1, 3, 5, 8, 11, 15, 29Blood 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 BilirubinDays 1, 3, 5, 8, 11, 15, 29Blood 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)Days 1, 3, 5, 8, 11, 15, 29Blood 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 NeutrophilsDays 1, 3, 5, 8, 11, 15, 29Blood 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 EosinophilsDays 1, 3, 5, 8, 11, 15, 29Blood 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 BasophilsDays 1, 3, 5, 8, 11, 15, 29Blood 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 LymphocytesDays 1, 3, 5, 8, 11, 15, 29Blood 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 MonocytesDays 1, 3, 5, 8, 11, 15, 29Blood 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)Day 1 through Day 60Grade 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)Day 1 through Day 60An 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 TreatmentDay 1 through Day 29Discontinuation or temporary suspension of study product is defined as any episode of early discontinuation or interruption of study product administration.
Duration of HospitalizationDay 1 through Day 29Duration 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) UseDay 1 through Day 29Duration 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 UseDay 1 through Day 29Duration 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 UseDay 1 through Day 29Duration 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) UseDay 1 through Day 29New 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 UseDay 1 through Day 29New 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 ScaleDay 1, 3, 5, 11, 15, 22, 29The 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 29Day 29Ordinal 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 MortalityDay 1 through Day 15The 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 MortalityDay 1 through Day 29The 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 MortalityDay 1 through Day 60The mortality rate was determined as the proportion of participants who died by study Day 60. The proportions reported are Kaplan-Meier estimates.
Proportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories Through Day 29Day 1 through Day 29Ordinal 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 an Improvement of One Category From Baseline Using an Ordinal ScaleDay 1 through Day 60The 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 ScaleDay 1 through Day 60The 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 DeathDay 1 through Day 29The 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) UseDay 1 through Day 29Duration of invasive ventilation/ECMO was measured in days among participants who required invasive ventilation or died.
Days of Supplemental Oxygen UseDay 1 through Day 29Duration 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.

Countries

United States

Participant flow

Recruitment details

Participants were male and non-pregnant female adults =18 years of age or older and hospitalized with COVID-19. Participants were enrolled between 23OCT2020 and 13JUL2021.

Participants by arm

ArmCount
Remdesivir + Risankizumab
200-mg IV remdesivir loading dose on Day 1, followed by a 100-mg once-daily IV maintenance dose up to a 10-day total course while hospitalized and 1200-mg IV risankizumab infusion (300-mg x 4 vials) once on Day 1.
104
Remdesivir + Placebo
200-mg IV remdesivir loading dose on Day 1, followed by a 100-mg once-daily IV maintenance dose up to a 10-day total course while hospitalized and 1200-mg IV risankizumab placebo infusion (300-mg x 4 vials) once on Day 1.
110
Total214

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath911
Overall StudyLost to Follow-up79
Overall StudyProtocol Violation20
Overall StudyRandomized but not dosed23
Overall StudyWithdrawal by Subject02
Overall StudyWithdrawal of consent before product administration10

Baseline characteristics

CharacteristicRemdesivir + RisankizumabRemdesivir + PlaceboTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
18 Participants32 Participants50 Participants
Age, Categorical
Between 18 and 65 years
86 Participants78 Participants164 Participants
Age, Continuous54.5 years
STANDARD_DEVIATION 12.2
57.5 years
STANDARD_DEVIATION 13.1
56.0 years
STANDARD_DEVIATION 12.8
Ethnicity (NIH/OMB)
Hispanic or Latino
23 Participants20 Participants43 Participants
Ethnicity (NIH/OMB)
Not Hispanic or Latino
81 Participants89 Participants170 Participants
Ethnicity (NIH/OMB)
Unknown or Not Reported
0 Participants1 Participants1 Participants
Race (NIH/OMB)
American Indian or Alaska Native
0 Participants1 Participants1 Participants
Race (NIH/OMB)
Asian
8 Participants6 Participants14 Participants
Race (NIH/OMB)
Black or African American
25 Participants28 Participants53 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
12 Participants8 Participants20 Participants
Race (NIH/OMB)
White
59 Participants67 Participants126 Participants
Region of Enrollment
United States
104 participants110 participants214 participants
Sex: Female, Male
Female
36 Participants52 Participants88 Participants
Sex: Female, Male
Male
68 Participants58 Participants126 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
9 / 10411 / 110
other
Total, other adverse events
24 / 10022 / 107
serious
Total, serious adverse events
24 / 10026 / 107

Outcome results

Primary

Number of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8

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.

Time frame: Day 8

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureCategoryValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP36 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices13 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, not req new or increased supplemental O2 - req ongoing medical care6 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, on invasive mechanical ventilation or ECMO11 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Death2 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, requiring new or increased supplemental O217 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Missing0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Not hospitalized, no new or increased limitations on activities15 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Missing1 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Not hospitalized, no new or increased limitations on activities21 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP36 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, not req new or increased supplemental O2 - req ongoing medical care3 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, requiring new or increased supplemental O216 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices19 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Hospitalized, on invasive mechanical ventilation or ECMO9 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 8Death2 Participants
Comparison: Includes all ordinal score categories. Odds ratio of a better clinical status score, confidence interval, and p-value estimated from a proportional odds model adjusted for baseline steroid use and baseline ordinal score. Missing data imputed using multiple imputation (MI) for participants lost to follow-up before Day 8 while hospitalized, in hospice, long term acute care, or transferred to other hospital while participants lost to follow-up after discharge to home are assigned a score of 2.p-value: 0.92795% CI: [0.59, 1.61]Proportional odds model
Secondary

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.

Time frame: Day 1 through Day 15

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, classified by their actual treatment assignment.

ArmMeasureValue (NUMBER)
Remdesivir + Risankizumab14-day Participant Mortality0.06 Proportion of participants
Remdesivir + Placebo14-day Participant Mortality0.03 Proportion of participants
Secondary

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.

Time frame: Day 1 through Day 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, classified by their actual treatment assignment.

ArmMeasureValue (NUMBER)
Remdesivir + Risankizumab28-day Participant Mortality0.07 Proportion of participants
Remdesivir + Placebo28-day Participant Mortality0.08 Proportion of participants
Secondary

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.

Time frame: Day 1 through Day 60

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, classified by their actual treatment assignment.

ArmMeasureValue (NUMBER)
Remdesivir + Risankizumab59-day Participant Mortality0.09 Proportion of participants
Remdesivir + Placebo59-day Participant Mortality0.11 Proportion of participants
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 36.1 U/LStandard Deviation 25.8
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 59.4 U/LStandard Deviation 34.7
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 86.1 U/LStandard Deviation 48.3
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 115.3 U/LStandard Deviation 55.7
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 157.6 U/LStandard Deviation 45.9
Remdesivir + RisankizumabChange From Baseline in Alanine Aminotransferase (ALT)Day 29-0.1 U/LStandard Deviation 31.6
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 15-3.3 U/LStandard Deviation 55.3
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 39.6 U/LStandard Deviation 43.5
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 1121.5 U/LStandard Deviation 117.7
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 564.0 U/LStandard Deviation 290.4
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 29-19.3 U/LStandard Deviation 62.1
Remdesivir + PlaceboChange From Baseline in Alanine Aminotransferase (ALT)Day 833.9 U/LStandard Deviation 168.1
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 3-1.4 U/LStandard Deviation 39.9
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 5-8.4 U/LStandard Deviation 36.6
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 8-16.7 U/LStandard Deviation 37.6
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 11-8.9 U/LStandard Deviation 45.1
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 15-13.8 U/LStandard Deviation 34.6
Remdesivir + RisankizumabChange From Baseline in Aspartate Transaminase (AST)Day 29-13.1 U/LStandard Deviation 22.4
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 15-16.9 U/LStandard Deviation 33
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 3-5.0 U/LStandard Deviation 46.4
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 1139.4 U/LStandard Deviation 318
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 544.2 U/LStandard Deviation 432.3
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 29-28.2 U/LStandard Deviation 37.3
Remdesivir + PlaceboChange From Baseline in Aspartate Transaminase (AST)Day 834.9 U/LStandard Deviation 404
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 30.0101 10^9 cells/LStandard Deviation 0.0561
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 50.0038 10^9 cells/LStandard Deviation 0.0315
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 80.0455 10^9 cells/LStandard Deviation 0.2018
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 110.0291 10^9 cells/LStandard Deviation 0.0288
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 150.0202 10^9 cells/LStandard Deviation 0.0348
Remdesivir + RisankizumabChange From Baseline in BasophilsDay 290.0262 10^9 cells/LStandard Deviation 0.0343
Remdesivir + PlaceboChange From Baseline in BasophilsDay 150.0254 10^9 cells/LStandard Deviation 0.0307
Remdesivir + PlaceboChange From Baseline in BasophilsDay 30.0052 10^9 cells/LStandard Deviation 0.0286
Remdesivir + PlaceboChange From Baseline in BasophilsDay 110.0123 10^9 cells/LStandard Deviation 0.0357
Remdesivir + PlaceboChange From Baseline in BasophilsDay 50.0039 10^9 cells/LStandard Deviation 0.0275
Remdesivir + PlaceboChange From Baseline in BasophilsDay 290.0425 10^9 cells/LStandard Deviation 0.0387
Remdesivir + PlaceboChange From Baseline in BasophilsDay 80.0061 10^9 cells/LStandard Deviation 0.0308
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 3-0.033 mg/dLStandard Deviation 0.201
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 5-0.020 mg/dLStandard Deviation 0.267
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 80.016 mg/dLStandard Deviation 0.336
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 110.153 mg/dLStandard Deviation 0.467
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 150.157 mg/dLStandard Deviation 0.494
Remdesivir + RisankizumabChange From Baseline in BilirubinDay 29-0.033 mg/dLStandard Deviation 0.291
Remdesivir + PlaceboChange From Baseline in BilirubinDay 150.131 mg/dLStandard Deviation 0.43
Remdesivir + PlaceboChange From Baseline in BilirubinDay 3-0.024 mg/dLStandard Deviation 0.152
Remdesivir + PlaceboChange From Baseline in BilirubinDay 110.148 mg/dLStandard Deviation 0.581
Remdesivir + PlaceboChange From Baseline in BilirubinDay 50.026 mg/dLStandard Deviation 0.249
Remdesivir + PlaceboChange From Baseline in BilirubinDay 29-0.091 mg/dLStandard Deviation 0.223
Remdesivir + PlaceboChange From Baseline in BilirubinDay 80.076 mg/dLStandard Deviation 0.343
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 3-49.471 milligrams/liter (mg/L)Standard Deviation 68.217
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 5-64.340 milligrams/liter (mg/L)Standard Deviation 77.43
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 8-62.578 milligrams/liter (mg/L)Standard Deviation 82.042
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 11-17.365 milligrams/liter (mg/L)Standard Deviation 138.044
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 15-66.453 milligrams/liter (mg/L)Standard Deviation 76.258
Remdesivir + RisankizumabChange From Baseline in C-Reactive Protein (CRP)Day 29-77.527 milligrams/liter (mg/L)Standard Deviation 69.087
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 15-58.816 milligrams/liter (mg/L)Standard Deviation 70.797
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 3-37.344 milligrams/liter (mg/L)Standard Deviation 64.622
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 11-49.828 milligrams/liter (mg/L)Standard Deviation 143.271
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 5-51.216 milligrams/liter (mg/L)Standard Deviation 80.23
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 29-68.496 milligrams/liter (mg/L)Standard Deviation 74.662
Remdesivir + PlaceboChange From Baseline in C-Reactive Protein (CRP)Day 8-58.094 milligrams/liter (mg/L)Standard Deviation 113.351
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 30.000 mg/dLStandard Deviation 0.332
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 5-0.041 mg/dLStandard Deviation 0.306
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 8-0.023 mg/dLStandard Deviation 0.281
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 11-0.127 mg/dLStandard Deviation 0.371
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 15-0.096 mg/dLStandard Deviation 0.347
Remdesivir + RisankizumabChange From Baseline in CreatinineDay 29-0.023 mg/dLStandard Deviation 0.249
Remdesivir + PlaceboChange From Baseline in CreatinineDay 150.362 mg/dLStandard Deviation 1.172
Remdesivir + PlaceboChange From Baseline in CreatinineDay 3-0.858 mg/dLStandard Deviation 8.777
Remdesivir + PlaceboChange From Baseline in CreatinineDay 11-3.044 mg/dLStandard Deviation 16.911
Remdesivir + PlaceboChange From Baseline in CreatinineDay 5-1.091 mg/dLStandard Deviation 10.138
Remdesivir + PlaceboChange From Baseline in CreatinineDay 290.211 mg/dLStandard Deviation 1.148
Remdesivir + PlaceboChange From Baseline in CreatinineDay 8-1.993 mg/dLStandard Deviation 13.677
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 3-1642.4 ug/L fibrinogen equivalent units (FEU)Standard Deviation 12710.1
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 5-914.1 ug/L fibrinogen equivalent units (FEU)Standard Deviation 21635.7
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 8-4124.4 ug/L fibrinogen equivalent units (FEU)Standard Deviation 23690
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 11-10670.7 ug/L fibrinogen equivalent units (FEU)Standard Deviation 34100.4
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 15-8990.9 ug/L fibrinogen equivalent units (FEU)Standard Deviation 28348.8
Remdesivir + RisankizumabChange From Baseline in D-dimerDay 29-6516.8 ug/L fibrinogen equivalent units (FEU)Standard Deviation 20705.8
Remdesivir + PlaceboChange From Baseline in D-dimerDay 15907.1 ug/L fibrinogen equivalent units (FEU)Standard Deviation 8625
Remdesivir + PlaceboChange From Baseline in D-dimerDay 3-38.8 ug/L fibrinogen equivalent units (FEU)Standard Deviation 3315.6
Remdesivir + PlaceboChange From Baseline in D-dimerDay 11-741.2 ug/L fibrinogen equivalent units (FEU)Standard Deviation 5094.4
Remdesivir + PlaceboChange From Baseline in D-dimerDay 5-129.3 ug/L fibrinogen equivalent units (FEU)Standard Deviation 4104.4
Remdesivir + PlaceboChange From Baseline in D-dimerDay 29-471.8 ug/L fibrinogen equivalent units (FEU)Standard Deviation 2401
Remdesivir + PlaceboChange From Baseline in D-dimerDay 8-38.9 ug/L fibrinogen equivalent units (FEU)Standard Deviation 19399.8
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 30.0009 10^9 cells/LStandard Deviation 0.035
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 50.0297 10^9 cells/LStandard Deviation 0.0615
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 80.0810 10^9 cells/LStandard Deviation 0.0969
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 110.1282 10^9 cells/LStandard Deviation 0.1387
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 150.0924 10^9 cells/LStandard Deviation 0.0902
Remdesivir + RisankizumabChange From Baseline in EosinophilsDay 290.1256 10^9 cells/LStandard Deviation 0.0955
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 150.1761 10^9 cells/LStandard Deviation 0.1577
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 30.0062 10^9 cells/LStandard Deviation 0.0557
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 110.0814 10^9 cells/LStandard Deviation 0.0953
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 50.0221 10^9 cells/LStandard Deviation 0.0699
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 290.3421 10^9 cells/LStandard Deviation 0.3291
Remdesivir + PlaceboChange From Baseline in EosinophilsDay 80.0259 10^9 cells/LStandard Deviation 0.0717
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in FerritinDay 3-187.123 micrograms/liter (ug/L)Standard Deviation 437.096
Remdesivir + RisankizumabChange From Baseline in FerritinDay 5-326.691 micrograms/liter (ug/L)Standard Deviation 610.633
Remdesivir + RisankizumabChange From Baseline in FerritinDay 8-252.804 micrograms/liter (ug/L)Standard Deviation 754.932
Remdesivir + RisankizumabChange From Baseline in FerritinDay 11-90.829 micrograms/liter (ug/L)Standard Deviation 648.972
Remdesivir + RisankizumabChange From Baseline in FerritinDay 15-305.970 micrograms/liter (ug/L)Standard Deviation 941.21
Remdesivir + RisankizumabChange From Baseline in FerritinDay 29-520.237 micrograms/liter (ug/L)Standard Deviation 476.899
Remdesivir + PlaceboChange From Baseline in FerritinDay 15-317.063 micrograms/liter (ug/L)Standard Deviation 828.814
Remdesivir + PlaceboChange From Baseline in FerritinDay 3-145.201 micrograms/liter (ug/L)Standard Deviation 562.15
Remdesivir + PlaceboChange From Baseline in FerritinDay 11-371.682 micrograms/liter (ug/L)Standard Deviation 628.049
Remdesivir + PlaceboChange From Baseline in FerritinDay 5-37.041 micrograms/liter (ug/L)Standard Deviation 1956.1
Remdesivir + PlaceboChange From Baseline in FerritinDay 29-762.394 micrograms/liter (ug/L)Standard Deviation 1056.614
Remdesivir + PlaceboChange From Baseline in FerritinDay 8-236.725 micrograms/liter (ug/L)Standard Deviation 800.878
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 3-89.7 milligrams/deciliter (mg/dL)Standard Deviation 124.9
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 5-109.0 milligrams/deciliter (mg/dL)Standard Deviation 169.3
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 8-100.5 milligrams/deciliter (mg/dL)Standard Deviation 218.2
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 1161.1 milligrams/deciliter (mg/dL)Standard Deviation 319.3
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 15-37.6 milligrams/deciliter (mg/dL)Standard Deviation 235.1
Remdesivir + RisankizumabChange From Baseline in FibrinogenDay 29-99.3 milligrams/deciliter (mg/dL)Standard Deviation 208.1
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 15-26.3 milligrams/deciliter (mg/dL)Standard Deviation 181.6
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 3-78.6 milligrams/deciliter (mg/dL)Standard Deviation 109.6
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 11-33.2 milligrams/deciliter (mg/dL)Standard Deviation 282.7
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 5-108.8 milligrams/deciliter (mg/dL)Standard Deviation 165.1
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 29-102.0 milligrams/deciliter (mg/dL)Standard Deviation 185.6
Remdesivir + PlaceboChange From Baseline in FibrinogenDay 8-121.0 milligrams/deciliter (mg/dL)Standard Deviation 225.5
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 3-0.199 g/dLStandard Deviation 0.785
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 5-0.485 g/dLStandard Deviation 1.142
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 8-0.461 g/dLStandard Deviation 1.434
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 11-1.079 g/dLStandard Deviation 1.997
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 15-0.817 g/dLStandard Deviation 1.702
Remdesivir + RisankizumabChange From Baseline in HemoglobinDay 29-0.524 g/dLStandard Deviation 1.989
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 15-0.805 g/dLStandard Deviation 1.929
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 3-0.035 g/dLStandard Deviation 0.893
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 11-0.714 g/dLStandard Deviation 1.722
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 5-0.074 g/dLStandard Deviation 1.202
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 29-0.642 g/dLStandard Deviation 1.867
Remdesivir + PlaceboChange From Baseline in HemoglobinDay 8-0.323 g/dLStandard Deviation 1.46
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 30.063 RatioStandard Deviation 0.174
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 50.103 RatioStandard Deviation 0.257
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 80.038 RatioStandard Deviation 0.206
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 110.137 RatioStandard Deviation 0.525
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 15-0.092 RatioStandard Deviation 0.238
Remdesivir + RisankizumabChange From Baseline in International Normalized Ratio (INR)Day 29-0.129 RatioStandard Deviation 0.185
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 15-0.077 RatioStandard Deviation 0.164
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 30.069 RatioStandard Deviation 0.257
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 110.015 RatioStandard Deviation 0.249
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 50.174 RatioStandard Deviation 0.682
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 29-0.075 RatioStandard Deviation 0.141
Remdesivir + PlaceboChange From Baseline in International Normalized Ratio (INR)Day 80.277 RatioStandard Deviation 1.58
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 30.2788 10^9 cells/LStandard Deviation 0.456
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 50.4256 10^9 cells/LStandard Deviation 0.6067
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 80.3956 10^9 cells/LStandard Deviation 0.6478
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 110.4431 10^9 cells/LStandard Deviation 0.5793
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 150.7937 10^9 cells/LStandard Deviation 0.6577
Remdesivir + RisankizumabChange From Baseline in LymphocytesDay 290.8309 10^9 cells/LStandard Deviation 0.5085
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 150.6096 10^9 cells/LStandard Deviation 0.7233
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 30.3009 10^9 cells/LStandard Deviation 0.5398
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 110.2932 10^9 cells/LStandard Deviation 0.6446
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 50.4233 10^9 cells/LStandard Deviation 0.7375
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 290.7879 10^9 cells/LStandard Deviation 0.581
Remdesivir + PlaceboChange From Baseline in LymphocytesDay 80.2612 10^9 cells/LStandard Deviation 0.6765
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 30.1697 10^9 cells/LStandard Deviation 0.3201
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 50.2023 10^9 cells/LStandard Deviation 0.3254
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 80.3398 10^9 cells/LStandard Deviation 0.4427
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 110.2450 10^9 cells/LStandard Deviation 0.2887
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 150.1694 10^9 cells/LStandard Deviation 0.3182
Remdesivir + RisankizumabChange From Baseline in MonocytesDay 29-0.0175 10^9 cells/LStandard Deviation 0.2896
Remdesivir + PlaceboChange From Baseline in MonocytesDay 150.1407 10^9 cells/LStandard Deviation 0.6706
Remdesivir + PlaceboChange From Baseline in MonocytesDay 30.1023 10^9 cells/LStandard Deviation 0.502
Remdesivir + PlaceboChange From Baseline in MonocytesDay 110.1835 10^9 cells/LStandard Deviation 0.8518
Remdesivir + PlaceboChange From Baseline in MonocytesDay 50.1318 10^9 cells/LStandard Deviation 0.5708
Remdesivir + PlaceboChange From Baseline in MonocytesDay 29-0.0232 10^9 cells/LStandard Deviation 0.7208
Remdesivir + PlaceboChange From Baseline in MonocytesDay 80.1135 10^9 cells/LStandard Deviation 0.7707
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 31.0297 10^9 cells/LStandard Deviation 2.6919
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 51.1050 10^9 cells/LStandard Deviation 2.6733
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 82.8066 10^9 cells/LStandard Deviation 3.1523
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 114.0192 10^9 cells/LStandard Deviation 5.5099
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 15-0.5410 10^9 cells/LStandard Deviation 2.9101
Remdesivir + RisankizumabChange From Baseline in NeutrophilsDay 29-1.8493 10^9 cells/LStandard Deviation 3.3028
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 150.1833 10^9 cells/LStandard Deviation 3.5524
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 30.9628 10^9 cells/LStandard Deviation 3.0963
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 112.4704 10^9 cells/LStandard Deviation 4.7446
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 51.3373 10^9 cells/LStandard Deviation 3.358
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 29-2.6216 10^9 cells/LStandard Deviation 3.8118
Remdesivir + PlaceboChange From Baseline in NeutrophilsDay 84.1114 10^9 cells/LStandard Deviation 5.5771
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 359.49 10^9 cells/LStandard Deviation 48.59
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 581.22 10^9 cells/LStandard Deviation 65.53
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 896.73 10^9 cells/LStandard Deviation 106.11
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 1154.95 10^9 cells/LStandard Deviation 109.38
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 15-16.90 10^9 cells/LStandard Deviation 110.76
Remdesivir + RisankizumabChange From Baseline in PlateletsDay 2927.42 10^9 cells/LStandard Deviation 128.22
Remdesivir + PlaceboChange From Baseline in PlateletsDay 15-24.19 10^9 cells/LStandard Deviation 120.42
Remdesivir + PlaceboChange From Baseline in PlateletsDay 350.45 10^9 cells/LStandard Deviation 60.91
Remdesivir + PlaceboChange From Baseline in PlateletsDay 11-1.68 10^9 cells/LStandard Deviation 117.94
Remdesivir + PlaceboChange From Baseline in PlateletsDay 576.17 10^9 cells/LStandard Deviation 80.11
Remdesivir + PlaceboChange From Baseline in PlateletsDay 2945.97 10^9 cells/LStandard Deviation 111.2
Remdesivir + PlaceboChange From Baseline in PlateletsDay 871.59 10^9 cells/LStandard Deviation 139.53
Secondary

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.

Time frame: Days 1, 3, 5, 8, 11, 15, 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies with available data at baseline and post baseline assessment time point, analyzed as treated.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 31.672 10^9 cells/LStandard Deviation 3.589
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 52.484 10^9 cells/LStandard Deviation 4.053
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 83.726 10^9 cells/LStandard Deviation 3.781
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 114.852 10^9 cells/LStandard Deviation 6.784
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 151.770 10^9 cells/LStandard Deviation 5.869
Remdesivir + RisankizumabChange From Baseline in White Blood Cell (WBC)Day 29-0.801 10^9 cells/LStandard Deviation 4.355
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 151.663 10^9 cells/LStandard Deviation 5.882
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 31.432 10^9 cells/LStandard Deviation 3.453
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 114.545 10^9 cells/LStandard Deviation 7.772
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 52.437 10^9 cells/LStandard Deviation 4.231
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 29-2.016 10^9 cells/LStandard Deviation 4.645
Remdesivir + PlaceboChange From Baseline in White Blood Cell (WBC)Day 85.298 10^9 cells/LStandard Deviation 6.39
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabDays of Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use0.0 days
Remdesivir + PlaceboDays of Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use0.0 days
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized. Only participants not on invasive ventilation/ECMO at baseline were included in the analysis.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabDays of New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use0.0 days
Remdesivir + PlaceboDays of New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use0.0 days
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized. Only participants in the hospitalized requiring new or increased supplemental oxygen ordinal scale or below at baseline were included in the analysis.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabDays of New Non-invasive Ventilation/High Flow Oxygen Use0.0 days
Remdesivir + PlaceboDays of New Non-invasive Ventilation/High Flow Oxygen Use0.0 days
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabDays of Non-invasive Ventilation/High Flow Oxygen Use0.0 days
Remdesivir + PlaceboDays of Non-invasive Ventilation/High Flow Oxygen Use0.0 days
Secondary

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 frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabDays of Supplemental Oxygen Use11.0 days
Remdesivir + PlaceboDays of Supplemental Oxygen Use11.0 days
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureGroupValue (MEDIAN)
Remdesivir + RisankizumabDuration of HospitalizationHospitalized for COVID-196.0 days
Remdesivir + RisankizumabDuration of HospitalizationHospitalized for Any Reason6.0 days
Remdesivir + PlaceboDuration of HospitalizationHospitalized for COVID-196.0 days
Remdesivir + PlaceboDuration of HospitalizationHospitalized for Any Reason6.0 days
Secondary

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.

Time frame: Day 1, 3, 5, 11, 15, 22, 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureGroupValue (MEAN)Dispersion
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 30.0 units on a scaleStandard Deviation 0.5
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 15-2.7 units on a scaleStandard Deviation 1.9
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 8-1.7 units on a scaleStandard Deviation 1.9
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 22-3.1 units on a scaleStandard Deviation 1.9
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 5-0.5 units on a scaleStandard Deviation 1.3
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 29-3.2 units on a scaleStandard Deviation 1.9
Remdesivir + RisankizumabMean Change in Ordinal ScaleDay 11-2.2 units on a scaleStandard Deviation 1.9
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 29-2.9 units on a scaleStandard Deviation 1.9
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 5-0.4 units on a scaleStandard Deviation 1.2
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 8-1.7 units on a scaleStandard Deviation 2
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 11-2.1 units on a scaleStandard Deviation 2
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 15-2.6 units on a scaleStandard Deviation 1.9
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 22-2.8 units on a scaleStandard Deviation 1.8
Remdesivir + PlaceboMean Change in Ordinal ScaleDay 30.0 units on a scaleStandard Deviation 0.4
Secondary

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.

Time frame: Day 15

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Not hospitalized, no new or increased limitations on activities31 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP46 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, not req new or increased supplemental O2 - req ongoing medical care1 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, requiring new or increased supplemental O210 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices2 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, on invasive mechanical ventilation or ECMO4 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Death6 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Death3 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Not hospitalized, no new or increased limitations on activities37 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, requiring new or increased supplemental O210 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP42 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, on invasive mechanical ventilation or ECMO9 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices4 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 15Hospitalized, not req new or increased supplemental O2 - req ongoing medical care2 Participants
Comparison: Includes all ordinal score categories. Odds ratio of a better clinical status score, confidence interval, and p-value estimated from a proportional odds model adjusted for baseline steroid use and baseline ordinal score. Missing data imputed using last observation carried forward for those lost to follow-up before Day 15 while hospitalized, in hospice, long term acute care, or transferred to other hospital. Participants lost to follow-up before Day 15 after discharge are given a score of 2.p-value: 0.9195% CI: [0.62, 1.71]Proportional odds model
Secondary

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.

Time frame: Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Not hospitalized, no new or increased limitations on activities46 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP43 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, not req new or increased supplemental O2 - req ongoing medical care0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, requiring new or increased supplemental O20 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices0 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, on invasive mechanical ventilation or ECMO4 Participants
Remdesivir + RisankizumabNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Death7 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Death7 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Not hospitalized, no new or increased limitations on activities50 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, requiring new or increased supplemental O23 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Not hosp., but new or incr. limit on activities and/or req. new or incr. home O2, CPAP, or BiPAP38 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, on invasive mechanical ventilation or ECMO4 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, not req new or increased supplemental O2 - no longer req ongoing medical care0 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, requiring new or increased non-invasive ventilation or high-flow oxygen devices4 Participants
Remdesivir + PlaceboNumber of Participants Meeting Criteria for Each of the 8 Ordinal Scale Categories on Day 29Hospitalized, not req new or increased supplemental O2 - req ongoing medical care1 Participants
Comparison: Includes all ordinal score categories. Odds ratio of a better clinical status score, confidence interval, and p-value estimated from a proportional odds model adjusted for baseline steroid use and baseline ordinal score. Missing data imputed using last observation carried forward for those lost to follow-up before Day 15 while hospitalized, in hospice, long term acute care, or transferred to other hospital. Participants lost to follow-up before Day 15 after discharge are given a score of 2.p-value: 0.61795% CI: [0.68, 1.93]Proportional odds model
Secondary

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.

Time frame: Day 1 through Day 60

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as treated.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Reporting Grade 3 and 4 Clinical and/or Laboratory Adverse Events (AEs)42 Participants
Remdesivir + PlaceboNumber of Participants Reporting Grade 3 and 4 Clinical and/or Laboratory Adverse Events (AEs)46 Participants
Secondary

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.

Time frame: Day 1 through Day 60

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as treated.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Reporting Serious Adverse Events (SAEs)24 Participants
Remdesivir + PlaceboNumber of Participants Reporting Serious Adverse Events (SAEs)26 Participants
Secondary

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.

Time frame: Day 1 through Day 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as treated.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants Who Discontinued or Temporarily Suspended Study Treatment1 Participants
Remdesivir + PlaceboNumber of Participants Who Discontinued or Temporarily Suspended Study Treatment0 Participants
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized. Only participants not on invasive ventilation/ECMO at baseline were included in the analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants With New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use12 Participants
Remdesivir + PlaceboNumber of Participants With New Invasive Mechanical Ventilation / Extracorporeal Membrane Oxygenation (ECMO) Use12 Participants
Secondary

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.

Time frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized. Only participants in the hospitalized requiring new or increased supplemental oxygen ordinal scale or below at baseline were included in the analysis.

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Remdesivir + RisankizumabNumber of Participants With New Non-invasive Ventilation/High Flow Oxygen Use10 Participants
Remdesivir + PlaceboNumber of Participants With New Non-invasive Ventilation/High Flow Oxygen Use20 Participants
Secondary

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.

Time frame: Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (NUMBER)
Remdesivir + RisankizumabProportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories at Day 290.89 Proportion of participants
Remdesivir + PlaceboProportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories at Day 290.90 Proportion of participants
Secondary

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 frame: Day 1 through Day 29

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (NUMBER)
Remdesivir + RisankizumabProportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories Through Day 290.87 Proportion of participants
Remdesivir + PlaceboProportion of Participants Not Meeting Criteria for One of Two Ordinal Scale Categories Through Day 290.88 Proportion of participants
Comparison: Odds ratio, confidence interval, and p-value estimated from a logistic regression model adjusted for baseline dexamethasone use, baseline ordinal score, age, and baseline C-Reactive Protein (CRP).p-value: 0.82995% CI: [0.36, 2.25]Regression, Logistic
Secondary

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 frame: Day 1 through Day 60

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabTime to an Improvement of One Category From Baseline Using an Ordinal Scale6.0 days
Remdesivir + PlaceboTime to an Improvement of One Category From Baseline Using an Ordinal Scale7.0 days
Comparison: Hazard ratio (HR), confidence interval, and p-value estimated from a Cox model adjusted for baseline steroid use and baseline ordinal score.p-value: 0.5595% CI: [0.82, 1.46]Regression, Cox
Secondary

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 frame: Day 1 through Day 60

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabTime to an Improvement of Two Categories From Baseline Using an Ordinal Scale12.0 days
Remdesivir + PlaceboTime to an Improvement of Two Categories From Baseline Using an Ordinal Scale13.0 days
Comparison: Hazard ratio (HR), confidence interval, and p-value estimated from a Cox model adjusted for baseline steroid use and baseline ordinal score.p-value: 0.52395% CI: [0.82, 1.48]Regression, Cox
Secondary

Time to Death

The time death from study Day 1 to study Day 29, measured in days. The times reported are Kaplan-Meier estimates.

Time frame: Day 1 through Day 29

Population: The safety population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, classified by their actual treatment assignment.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabTime to DeathNA days
Remdesivir + PlaceboTime to DeathNA days
Secondary

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.

Time frame: Day 1 through Day 60

Population: The modified intention-to-treat (mITT) population includes all randomized participants who received at least one dose of investigational product other than standard of care therapies, analyzed as randomized.

ArmMeasureValue (MEDIAN)
Remdesivir + RisankizumabTime to Sustained Recovery7.0 days
Remdesivir + PlaceboTime to Sustained Recovery6.0 days
Comparison: Hazard ratio, confidence interval, and p-value estimated from a Cox model adjusted for baseline steroid use and baseline ordinal score.p-value: 0.39995% CI: [0.84, 1.56]Regression, Cox

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