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Study of Oral Ibrutinib Capsules to Assess Respiratory Failure in Adult Participants With Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2) and Pulmonary Injury

IbrutiNib in SARS CoV-2 Induced Pulmonary Injury and Respiratory Failure (iNSPIRE)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04375397
Acronym
iNSPIRE
Enrollment
46
Registered
2020-05-05
Start date
2020-06-06
Completion date
2021-06-08
Last updated
2022-06-01

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

Conditions

CoronaVirus Induced Disease-2019 (COVID-19)

Keywords

CoronaVirus Induced Disease-2019, COVID-19, Severe Acute Respiratory Syndrome Coronavirus-2 (SARS-CoV-2), Pulmonary Injury, Ibrutinib, Imbruvica, Respiratory failure

Brief summary

Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Lung failure is the main cause of death related to COVID-19 infection. The main objective of this study was to evaluate if ibrutinib is safe and can reduce respiratory failure in participants with COVID-19 infection.

Detailed description

This was a Phase 2, multicenter, randomized, placebo-controlled, double-blind study to evaluate the addition of ibrutinib to supportive care in hospitalized participants who presented with COVID-19- related pulmonary distress requiring supplemental oxygen. Participants were randomized in a 1:1 ratio to receive placebo + supportive care, denoted as SOC or standard-of-care, or ibrutinib 420 mg + SOC, with randomization stratified by prescription for remdesivir. Participants were to be treated with either placebo or ibrutinib in addition to supportive care for up to 28 days unless they met treatment discontinuation criteria and were to be followed for 58 days following start of therapy or until death, whichever occurred first. Treatment could have been stopped at the discretion of the treating physician after 14 days if the participant was clinically stable and had been off supplemental oxygen for \> 48 hours.

Interventions

DRUGIbrutinib

Capsules were to be administered orally with water once daily. For participants who required nasogastric tube (NGT) placement while on study, capsules may have been administered by opening the capsules, mixing with water, and flushing down the NGT.

DRUGPlacebo

Capsules were to be administered orally with water once daily. For participants who required nasogastric tube (NGT) placement while on study, capsules may have been administered by opening the capsules, mixing with water, and flushing down the NGT.

Sponsors

Janssen Research & Development LLC; Pharmacyclics LLC (An AbbVie Company)
CollaboratorUNKNOWN
AbbVie
Lead SponsorINDUSTRY

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
QUADRUPLE (Subject, Caregiver, Investigator, Outcomes Assessor)

Eligibility

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

Inclusion criteria

* Requires hospitalization for COVID-19 infection * Has Severe Acute Respiratory Syndrome Coronavirus (SARS-CoV)-2 infection confirmed by reverse transcription polymerase chain reaction (RT-PCR) test before study entry * Requires supplemental oxygen for pulmonary distress related to COVID-19 infection, and has been on supplemental oxygen for no more than 5 days, and on breathing room air have oxygen saturation levels of 94% or less * Has radiographic evidence of pulmonary infiltrates * Females of childbearing potential (FCBP) must use 1 reliable form of contraception or have complete abstinence from heterosexual intercourse during the following time periods related to this study: while participating in the study; and for at least 1 month after discontinuation of study drug. FCBP must be referred to a qualified provider of contraceptive methods if needed. FCBP must have a negative serum pregnancy test as of screening. * Men must agree to use a latex condom during treatment and for up to 3 months after the last dose of ibrutinib during sexual contact with a FCBP. * Adequate hematologic, hepatic and renal function as described in the protocol * Must be within 10 days of confirmed diagnosis of COVID-19

Exclusion criteria

* Respiratory failure at time of screening as defined per protocol with any of these following therapies: * Endotracheal intubation and mechanical ventilation * Extracorporeal membrane oxygenation (ECMO) * High flow nasal cannula oxygen at flow rates ≥ 30 L/min and fraction of delivered oxygen ≥ 0.5 * Non-invasive positive pressure ventilation * Unable to swallow capsules or malabsorption syndrome, disease significantly affecting gastrointestinal function, or resection of the stomach or small bowel, symptomatic inflammatory bowel disease or ulcerative colitis, or partial or complete bowel obstruction * On a Bruton's tyrosine kinase (BTK)-inhibitor, anti-interleukin 6 (IL6), anti-interleukin 6R (IL6R), or Janus kinase inhibitor (JAKi) * Has received rituximab within 180 days from study entry. * Known bleeding disorders * Major surgery within 4 weeks of study entry * Participants in whom surgery is anticipated to be necessary within 72 hours * History of stroke or bleeding around or within brain within 6 months prior to enrollment * Known history of human immunodeficiency virus (HIV) or active with hepatitis C virus (HCV) or hepatitis B virus (HBV) * Currently active, clinically significant cardiovascular disease * Asymptomatic arrythmias and or history of ejection fraction \< 40% on an echo * Participants receiving a strong cytochrome P450 (CYP) 3A4 inhibitor with the exception of those receiving anti-fungal therapy/prophylaxis * Chronic liver disease and hepatic impairment meeting Child Pugh class C * Female participants who are pregnant, or breastfeeding, or planning to become pregnant while enrolled in this study or within 1 month of last dose of study drug. Male participants who plan to father a child while enrolled in this study or within 3 months after the last dose of study drug. * Unwilling or unable to participate in all required study evaluations and procedures * Vaccinated with a live, attenuated vaccine within 4 weeks * Uncontrolled high blood pressure * On therapeutic anticoagulation at baseline * Participants with cancer, history of interstitial lung disease, and/or history of malignancies as defined in the protocol * Co-enrolled in another interventional trial * Aspartate aminotransferase (AST) or alanine aminotransferase (ALT) ≥ 3.0 × ULN, and total bilirubin \> 2.0 × ULN * International normalized ratio (INR) ≥ 1.5 × ULN attributable to coagulation disorders

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants Alive and Without Respiratory Failure Through Day 28Through Day 28Respiratory failure is defined as a clinical diagnosis of respiratory failure and initiation of one of the following therapies: endotracheal intubation and mechanical ventilation; OR extracorporeal membrane oxygenation; OR high-flow nasal cannula oxygen delivery (i.e., reinforced nasal cannula delivering heated, humidified oxygen with fraction of delivered oxygen ≥ 0.5 and flow rates of ≥ 30 L/min); OR non-invasive positive pressure ventilation; OR clinical diagnosis of respiratory failure with initiation of none of these measures only when clinical decision-making is driven solely by resource limitation.

Secondary

MeasureTime frameDescription
Median Reduction in Days Spent on Supplemental OxygenUp to Day 28Days spent on supplemental oxygen was set as the date of the participant being off of supplemental oxygen minus the date of initiation of supplemental oxygen + 1 day. If a participant received more than 1 period of supplemental oxygen therapy during the study or switched from supplemental oxygen to a more intensive therapy, then the days spent on supplemental oxygen were to be calculated as the sum of all the periods where the participant was on supplemental oxygen or a more intensive therapy through Day 28. If the date of the first initiation of supplemental oxygen was before Baseline Day 1, then the days spent on supplemental oxygen were to be calculated from Baseline Day 1 to the date of the participant being off the supplemental oxygen. Time on supplemental oxygen was to be imputed to the maximum number of days on study drug (28) for all points following the death of a participant.
All-Cause Mortality at Study Days 7, 14, 21, and 28At Study Days 7, 14, 21, and 28The percentage of participants with mortality from any cause was recorded.
Percentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28At Study Days 7, 14, 21, and 28Respiratory failure is defined as a clinical diagnosis of respiratory failure and initiation of one of the following therapies: endotracheal intubation and mechanical ventilation; OR extracorporeal membrane oxygenation; OR high-flow nasal cannula oxygen delivery (i.e., reinforced nasal cannula delivering heated, humidified oxygen with fraction of delivered oxygen ≥ 0.5 and flow rates of ≥ 30 L/min), OR non-invasive positive pressure ventilation; OR clinical diagnosis of respiratory failure with initiation of none of these measures only when clinical decision-making is driven solely by resource limitation.
Mechanical Ventilation-Free SurvivalUp to Day 28Mechanical ventilation-free survival is defined as the number of days from Baseline Day 1 to the date when a participant initiated mechanical ventilation or died, whichever occurred first, during the 28 days post baseline. If the specified event did not occur by Day 28, participants were to be censored. Specifically, a participant without any post-baseline assessment record was to be censored at Baseline Day 1, a participant who prematurely discontinued from study without a record of death or start of mechanical ventilation was to be censored at the earlier timepoint of the date of study discontinuation or Day 28, an ongoing participant in the study without a record of death or start of mechanical ventilation was to be censored at the earlier timepoint of the date of the last evidence that the participant is not on mechanical ventilation or Day 28.
Days on Mechanical VentilationUp to Day 28Days spent on mechanical ventilation was defined as the date of the participant being off mechanical ventilation - date of initiation of mechanical ventilation + 1 day. If a participant received more than 1 period of mechanical ventilation during the study or switched from mechanical ventilation to a more intensive therapy, then the days spent on mechanical ventilation were to be calculated as the sum of all the periods where the participant is on mechanical ventilation or a more intensive therapy through Day 28.
Change in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14At Day 14The WHO-8 is an ordinal scale for clinical improvement with scores ranging from 0 to 8, where a lower score indicates better clinical status. A score of 0 represents uninfected; 1 (ambulatory, no limitation of activities); 2 (ambulatory, limitation of activities); 3 (hospitalized with mild disease, no oxygen therapy); 4 (hospitalized with mild disease, oxygen by mask or nasal prongs); 5 (hospitalized with severe disease, non-invasive ventilation or high-flow oxygen); 6 (hospitalized with severe disease, intubation and mechanical ventilation); 7 (hospitalized with severe disease, ventilation and additional organ support \[pressors, renal replacement therapy, extracorporeal membrane oxygenation\]); and 8 (death). Negative values indicate improvement from baseline.
Time to Discharge From HospitalUp to Day 28Time to discharge from hospital is defined as the number of days from Baseline Day 1 to the date of the last evidence that a participant is last discharged from hospital, during the 28 days post baseline. If the specified event did not occur by Day 28, participants were censored. Specifically, a participant without any postbaseline assessment record was to be censored at Baseline Day 1, a participant who died was to have time to discharge from hospital censored at Day 28, a participant who prematurely discontinued from study without a record of hospitalization discharge was to be censored at the earlier timepoint of the date of study discontinuation or Day 28, an on-going participant in the study without a record of hospitalization discharge was to be censored at the earlier timepoint of the date of the last evidence that the participant is hospitalized or Day 28.
Partial Pressure of Oxygen in Arterial Blood (PaO2) to Fraction of Inspired Oxygen (FiO2) RatioAt Study Days 7, 14, 21, and 28The PaO2/FiO2 ratio is the ratio of arterial oxygen partial pressure (PaO2 in mmHg) to fractional inspired oxygen (FiO2). A PaO2/FiO2 ratio of 300 to 200 is mild, 200 to 100 moderate, and \<100 is severe Adult Respiratory Distress Syndrome (ARDS).
Oxygenation IndexAt Study Days 7, 14, 21, and 28The oxygenation index is used to assess the intensity of ventilatory support required to maintain oxygenation. An index of 0 to \< 25 is predictive of a good outcome; 25 to \<40 indicates a chance of death \>40%; and an index of 40 to 1000 warrants consideration of extracorporeal membrane oxygenation (ECMO).
Number of Participants With Adverse EventsFrom first dose of study drug until 30 days following last dose of study drug (up to 70 days)An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent adverse events (TEAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.
Median Duration of HospitalizationUp to Day 28Median duration of hospitalization is defined as the hospitalization discharge date - hospitalization admission date + 1 day. If a participant was hospitalized more than once during the study then the hospitalization time was to be calculated as the sum of all the periods when the participant was hospitalized through Day 28.

Countries

United States

Participant flow

Pre-assignment details

Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

Participants by arm

ArmCount
Ibrutinib 420 mg + SOC
420 mg ibrutinib administered once daily as three hard gelatin capsules (140 mg each) with approximately 240 mL of water for up to 28 days and supportive care (standard-of-care, SOC)
22
Placebo + SOC
Three hard gelatin placebo capsules administered once daily with approximately 240 mL of water for up to 28 days and supportive care (standard-of-care, SOC)
24
Total46

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDeath11
Overall StudyLost to Follow-up64
Overall StudyOther, not specified01
Overall StudyWithdrew consent20

Baseline characteristics

CharacteristicPlacebo + SOCTotalIbrutinib 420 mg + SOC
Age, Continuous55.2 years
STANDARD_DEVIATION 11.73
52.8 years
STANDARD_DEVIATION 11.34
50.1 years
STANDARD_DEVIATION 10.52
COVID-19 symptom onset duration prior to baseline (days)9.08 days
STANDARD_DEVIATION 2.765
9.17 days
STANDARD_DEVIATION 2.644
9.27 days
STANDARD_DEVIATION 2.567
Number of participants with a score of 4 on the WHO-8 ordinal scale at screening24 Participants46 Participants22 Participants
Race/Ethnicity, Customized
American Indian or Alaska Native
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Asian
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Black or African American
4 Participants8 Participants4 Participants
Race/Ethnicity, Customized
Missing
6 Participants10 Participants4 Participants
Race/Ethnicity, Customized
Multiple
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
Native Hawaiian or Other Pacific Islander
1 Participants1 Participants0 Participants
Race/Ethnicity, Customized
Other
0 Participants0 Participants0 Participants
Race/Ethnicity, Customized
White
12 Participants26 Participants14 Participants
Sex: Female, Male
Female
8 Participants14 Participants6 Participants
Sex: Female, Male
Male
16 Participants32 Participants16 Participants
Stratification factor of prescription for remdesivir
No
8 Participants17 Participants9 Participants
Stratification factor of prescription for remdesivir
Yes
16 Participants29 Participants13 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
1 / 221 / 24
other
Total, other adverse events
8 / 226 / 24
serious
Total, serious adverse events
4 / 223 / 24

Outcome results

Primary

Percentage of Participants Alive and Without Respiratory Failure Through Day 28

Respiratory failure is defined as a clinical diagnosis of respiratory failure and initiation of one of the following therapies: endotracheal intubation and mechanical ventilation; OR extracorporeal membrane oxygenation; OR high-flow nasal cannula oxygen delivery (i.e., reinforced nasal cannula delivering heated, humidified oxygen with fraction of delivered oxygen ≥ 0.5 and flow rates of ≥ 30 L/min); OR non-invasive positive pressure ventilation; OR clinical diagnosis of respiratory failure with initiation of none of these measures only when clinical decision-making is driven solely by resource limitation.

Time frame: Through Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (NUMBER)
Ibrutinib 420 mg + SOCPercentage of Participants Alive and Without Respiratory Failure Through Day 2886.4 percentage of participants
Placebo + SOCPercentage of Participants Alive and Without Respiratory Failure Through Day 2879.2 percentage of participants
Comparison: The difference in response rates between the experimental arm and the control arm were analyzed using the Miettinen-Nurminen (MN) method, adjusting for the stratification factor of prescription for remdesivir. The MN test p-value for testing the rate difference = 0 at two-sided alpha = 0.2.p-value: =0.59980% CI: [-9.2, 20.4]Miettinen-Nurminen method
Comparison: The difference in response rates between the experimental arm and the control arm were analyzed using the Miettinen-Nurminen (MN) method, adjusting for the stratification factor of prescription for remdesivir. The MN test p-value for testing the rate difference = 0 at twosided alpha = 0.2.p-value: =0.59995% CI: [-18.1, 28.7]Miettinen-Nurminen method
Secondary

All-Cause Mortality at Study Days 7, 14, 21, and 28

The percentage of participants with mortality from any cause was recorded.

Time frame: At Study Days 7, 14, 21, and 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureGroupValue (NUMBER)
Ibrutinib 420 mg + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 70 percentage of participants
Ibrutinib 420 mg + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 140 percentage of participants
Ibrutinib 420 mg + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 214.5 percentage of participants
Ibrutinib 420 mg + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 284.5 percentage of participants
Placebo + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 280 percentage of participants
Placebo + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 70 percentage of participants
Placebo + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 210 percentage of participants
Placebo + SOCAll-Cause Mortality at Study Days 7, 14, 21, and 28Day 140 percentage of participants
Comparison: At Day 7-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =180% CI: [-6.7, 7.3]Miettinen-Nurminen
Comparison: At Day 7-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =195% CI: [-14.4, 15.5]Miettinen-Nurminen
Comparison: At Day 14-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =180% CI: [-6.7, 7.3]Miettinen-Nurminen
Comparison: At Day 14-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =195% CI: [-14.4, 15.5]Miettinen-Nurminen
Comparison: At Day 21-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =0.26780% CI: [-1.7, 14.8]Miettinen-Nurminen
Comparison: At Day 21-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =0.26795% CI: [-9.6, 22.8]Miettinen-Nurminen
Comparison: At Day 28-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =0.26780% CI: [-1.7, 14.8]Miettinen-Nurminen
Comparison: At Day 28-- Ibrutinib 420 mg + SOC - Placebo + SOC~The Miettinen-Nurminen (MN) test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2 and associated confidence intervals are reported.p-value: =0.26795% CI: [-9.6, 22.8]Miettinen-Nurminen
Secondary

Change in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14

The WHO-8 is an ordinal scale for clinical improvement with scores ranging from 0 to 8, where a lower score indicates better clinical status. A score of 0 represents uninfected; 1 (ambulatory, no limitation of activities); 2 (ambulatory, limitation of activities); 3 (hospitalized with mild disease, no oxygen therapy); 4 (hospitalized with mild disease, oxygen by mask or nasal prongs); 5 (hospitalized with severe disease, non-invasive ventilation or high-flow oxygen); 6 (hospitalized with severe disease, intubation and mechanical ventilation); 7 (hospitalized with severe disease, ventilation and additional organ support \[pressors, renal replacement therapy, extracorporeal membrane oxygenation\]); and 8 (death). Negative values indicate improvement from baseline.

Time frame: At Day 14

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug; participants with baseline and Day 14 score data

ArmMeasureGroupValue (COUNT_OF_PARTICIPANTS)
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-3 points12 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-2 points5 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-1 point0 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 140 points1 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 141 point1 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 143 points1 Participants
Ibrutinib 420 mg + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-4 points2 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-3 points9 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 141 point1 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-2 points7 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-4 points3 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 14-1 point2 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 143 points1 Participants
Placebo + SOCChange in the World Health Organization (WHO)-8 Ordinal Scale From Baseline at Study Day 140 points1 Participants
Comparison: Change in ordinal score from baseline to day 14 = -3~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.88695% CI: [0.13, 10.44]Multinomial Logistic Regression
Comparison: Change in ordinal score from baseline to day 14 = -2~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.70595% CI: [0.06, 6.43]Multinomial Logistic Regression
Comparison: Change in ordinal score from baseline to day 14 = -1~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.996Multinomial Logistic Regression
Comparison: Change in ordinal score from baseline to day 14 = 0~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.96995% CI: [0.04, 32.18]Multinomial Logistic Regression
Comparison: Change in ordinal score from baseline to day 14 = 1~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.96995% CI: [0.04, 32.18]Multinomial Logistic Regression
Comparison: Change in ordinal score from baseline to day 14 = 3~To evaluate the odds of clinical status improvement as determined by the WHO-8 ordinal scale, a multinomial logistic regression model was used.~Pairwise Comparison in Reference to the Group with Change = -4p-value: =0.96995% CI: [0.04, 32.18]Multinomial Logistic Regression
Secondary

Days on Mechanical Ventilation

Days spent on mechanical ventilation was defined as the date of the participant being off mechanical ventilation - date of initiation of mechanical ventilation + 1 day. If a participant received more than 1 period of mechanical ventilation during the study or switched from mechanical ventilation to a more intensive therapy, then the days spent on mechanical ventilation were to be calculated as the sum of all the periods where the participant is on mechanical ventilation or a more intensive therapy through Day 28.

Time frame: Up to Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (MEDIAN)
Ibrutinib 420 mg + SOCDays on Mechanical Ventilation0.0 days
Placebo + SOCDays on Mechanical Ventilation0.0 days
Comparison: Median days spent on mechanical ventilation were compared between treatment groups using Van Elteren's test with the stratification factor of prescription for remdesivir.p-value: =0.745Van Elteren's test
Secondary

Mechanical Ventilation-Free Survival

Mechanical ventilation-free survival is defined as the number of days from Baseline Day 1 to the date when a participant initiated mechanical ventilation or died, whichever occurred first, during the 28 days post baseline. If the specified event did not occur by Day 28, participants were to be censored. Specifically, a participant without any post-baseline assessment record was to be censored at Baseline Day 1, a participant who prematurely discontinued from study without a record of death or start of mechanical ventilation was to be censored at the earlier timepoint of the date of study discontinuation or Day 28, an ongoing participant in the study without a record of death or start of mechanical ventilation was to be censored at the earlier timepoint of the date of the last evidence that the participant is not on mechanical ventilation or Day 28.

Time frame: Up to Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (MEDIAN)
Ibrutinib 420 mg + SOCMechanical Ventilation-Free SurvivalNA days
Placebo + SOCMechanical Ventilation-Free SurvivalNA days
Comparison: For the analysis of mechanical ventilation-free survival, the distribution of time to event was estimated by treatment group using Kaplan-Meier methodology and compared between the experimental arm and the control arm using the log-rank test stratified by prescription for remdesivir.p-value: =0.851Log Rank
Secondary

Median Duration of Hospitalization

Median duration of hospitalization is defined as the hospitalization discharge date - hospitalization admission date + 1 day. If a participant was hospitalized more than once during the study then the hospitalization time was to be calculated as the sum of all the periods when the participant was hospitalized through Day 28.

Time frame: Up to Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (MEDIAN)
Ibrutinib 420 mg + SOCMedian Duration of Hospitalization6.0 days
Placebo + SOCMedian Duration of Hospitalization6.5 days
Comparison: Median duration of hospitalization was compared between treatment groups using Van Elteren's test with the stratification factor of prescription for remdesivir.p-value: =0.977Van Elteren's test]
Secondary

Median Reduction in Days Spent on Supplemental Oxygen

Days spent on supplemental oxygen was set as the date of the participant being off of supplemental oxygen minus the date of initiation of supplemental oxygen + 1 day. If a participant received more than 1 period of supplemental oxygen therapy during the study or switched from supplemental oxygen to a more intensive therapy, then the days spent on supplemental oxygen were to be calculated as the sum of all the periods where the participant was on supplemental oxygen or a more intensive therapy through Day 28. If the date of the first initiation of supplemental oxygen was before Baseline Day 1, then the days spent on supplemental oxygen were to be calculated from Baseline Day 1 to the date of the participant being off the supplemental oxygen. Time on supplemental oxygen was to be imputed to the maximum number of days on study drug (28) for all points following the death of a participant.

Time frame: Up to Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (MEDIAN)
Ibrutinib 420 mg + SOCMedian Reduction in Days Spent on Supplemental Oxygen5.0 days
Placebo + SOCMedian Reduction in Days Spent on Supplemental Oxygen6.5 days
Comparison: Median days spent on supplemental oxygen was compared between treatment groups using Van Elteren's test with the stratification factor of prescription for remdesivir.p-value: =0.801Van Elteren's test
Secondary

Number of Participants With Adverse Events

An adverse event (AE) is defined as any untoward medical occurrence in a patient or clinical investigation participant administered a pharmaceutical product which does not necessarily have a causal relationship with this treatment. The investigator assesses the relationship of each event to the use of study. A serious adverse event (SAE) is an event that results in death, is life-threatening, requires or prolongs hospitalization, results in a congenital anomaly, persistent or significant disability/incapacity or is an important medical event that, based on medical judgment, may jeopardize the participant and may require medical or surgical intervention to prevent any of the outcomes listed above. Treatment-emergent adverse events (TEAEs) are defined as any event that began or worsened in severity on or after the first dose of study drug.

Time frame: From first dose of study drug until 30 days following last dose of study drug (up to 70 days)

Population: Safety Population: all participants who received at least 1 dose of study drug

ArmMeasureValue (COUNT_OF_PARTICIPANTS)
Ibrutinib 420 mg + SOCNumber of Participants With Adverse Events12 Participants
Placebo + SOCNumber of Participants With Adverse Events12 Participants
Secondary

Oxygenation Index

The oxygenation index is used to assess the intensity of ventilatory support required to maintain oxygenation. An index of 0 to \< 25 is predictive of a good outcome; 25 to \<40 indicates a chance of death \>40%; and an index of 40 to 1000 warrants consideration of extracorporeal membrane oxygenation (ECMO).

Time frame: At Study Days 7, 14, 21, and 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug. Participants with non-missing baseline and at least one post-baseline value are included in the analyses.

ArmMeasureGroupValue (MEAN)Dispersion
Ibrutinib 420 mg + SOCOxygenation IndexDay 714 units on a scale
Ibrutinib 420 mg + SOCOxygenation IndexDay 1419 units on a scale
Ibrutinib 420 mg + SOCOxygenation IndexDay 2133 units on a scaleStandard Deviation 43.61
Placebo + SOCOxygenation IndexDay 1412 units on a scale
Placebo + SOCOxygenation IndexDay 2120 units on a scaleStandard Deviation 1.75
Placebo + SOCOxygenation IndexDay 2812 units on a scaleStandard Deviation 4.26
Secondary

Partial Pressure of Oxygen in Arterial Blood (PaO2) to Fraction of Inspired Oxygen (FiO2) Ratio

The PaO2/FiO2 ratio is the ratio of arterial oxygen partial pressure (PaO2 in mmHg) to fractional inspired oxygen (FiO2). A PaO2/FiO2 ratio of 300 to 200 is mild, 200 to 100 moderate, and \<100 is severe Adult Respiratory Distress Syndrome (ARDS).

Time frame: At Study Days 7, 14, 21, and 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug. Participants with non-missing baseline and at least one post-baseline value are included in the analyses.

ArmMeasureGroupValue (MEAN)Dispersion
Ibrutinib 420 mg + SOCPartial Pressure of Oxygen in Arterial Blood (PaO2) to Fraction of Inspired Oxygen (FiO2) RatioDay 7100 mmHgStandard Deviation 56.07
Ibrutinib 420 mg + SOCPartial Pressure of Oxygen in Arterial Blood (PaO2) to Fraction of Inspired Oxygen (FiO2) RatioDay 21269 mmHg
Placebo + SOCPartial Pressure of Oxygen in Arterial Blood (PaO2) to Fraction of Inspired Oxygen (FiO2) RatioDay 787 mmHgStandard Deviation 33.35
Secondary

Percentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28

Respiratory failure is defined as a clinical diagnosis of respiratory failure and initiation of one of the following therapies: endotracheal intubation and mechanical ventilation; OR extracorporeal membrane oxygenation; OR high-flow nasal cannula oxygen delivery (i.e., reinforced nasal cannula delivering heated, humidified oxygen with fraction of delivered oxygen ≥ 0.5 and flow rates of ≥ 30 L/min), OR non-invasive positive pressure ventilation; OR clinical diagnosis of respiratory failure with initiation of none of these measures only when clinical decision-making is driven solely by resource limitation.

Time frame: At Study Days 7, 14, 21, and 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureGroupValue (NUMBER)
Ibrutinib 420 mg + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 79.1 percentage of participants
Ibrutinib 420 mg + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 149.1 percentage of participants
Ibrutinib 420 mg + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 2113.6 percentage of participants
Ibrutinib 420 mg + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 2813.6 percentage of participants
Placebo + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 2820.8 percentage of participants
Placebo + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 720.8 percentage of participants
Placebo + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 2120.8 percentage of participants
Placebo + SOCPercentage of Participants Experiencing Respiratory Failure or Death on Study Days 7, 14, 21, and 28Day 1420.8 percentage of participants
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 7~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.31480% CI: [-24.8, 3.3]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 7~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.31495% CI: [-32.8, 12]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 14~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.31480% CI: [-24.8, 3.3]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 14~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.31495% CI: [-32.8, 12]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 21~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.59980% CI: [-20.4, 9.2]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 21~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.59995% CI: [-28.7, 18.1]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 28~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.59980% CI: [-20.4, 9.2]Miettinen-Nurminen
Comparison: Failure/Mortality Rate Difference Compared to Placebo + SOC at Day 28~The difference in response rates between the experimental arm and the control arm was analyzed using the Miettinen-Nurminen (MN) method adjusting for the stratification factor of prescription for remdesivir. MN test p-value for testing the rate difference = 0 adjusting for the stratification factor of prescription for remdesivir using Cochran-Mantel-Haenszel weights at two-sided alpha of 0.2.p-value: =0.59995% CI: [-28.7, 18.1]Miettinen-Nurminen
Secondary

Time to Discharge From Hospital

Time to discharge from hospital is defined as the number of days from Baseline Day 1 to the date of the last evidence that a participant is last discharged from hospital, during the 28 days post baseline. If the specified event did not occur by Day 28, participants were censored. Specifically, a participant without any postbaseline assessment record was to be censored at Baseline Day 1, a participant who died was to have time to discharge from hospital censored at Day 28, a participant who prematurely discontinued from study without a record of hospitalization discharge was to be censored at the earlier timepoint of the date of study discontinuation or Day 28, an on-going participant in the study without a record of hospitalization discharge was to be censored at the earlier timepoint of the date of the last evidence that the participant is hospitalized or Day 28.

Time frame: Up to Day 28

Population: Full Analysis Set (FAS): all randomized participants who received at least 1 dose of study drug

ArmMeasureValue (MEDIAN)
Ibrutinib 420 mg + SOCTime to Discharge From Hospital6.0 days
Placebo + SOCTime to Discharge From Hospital6.5 days
Comparison: For the analysis of time to discharge from hospital, the distribution of time to event was estimated by treatment group using Kaplan-Meier methodology and compared between the experimental arm and the control arm using the log-rank test stratified by prescription for remdesivir.p-value: =0.969Log Rank

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026