Trial Outcomes & Findings for Acalabrutinib Study With Best Supportive Care Versus Best Supportive Care in Subjects Hospitalized With COVID-19. (NCT NCT04380688)

NCT ID: NCT04380688

Last Updated: 2021-09-13

Results Overview

Recruitment status

COMPLETED

Study phase

PHASE2

Target enrollment

62 participants

Primary outcome timeframe

Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC participants) or to 38 (+3) days after randomization (for BSC alone participants)

Results posted on

2021-09-13

Participant Flow

All participants were recruited from the United States and had COVID-19 pneumonia (documented radiographically) requiring hospitalization. The first participant was randomized on 13 June 2020 and the last participant was randomized on 20 August 2020.

Screening assessments were performed within the 3 days prior to randomization. Of 70 screened participants, 62 were enrolled. Of the 8 participants that were not enrolled, 7 were screen failures (did not meet eligibility criteria) and 1 withdrew consent.

Participant milestones

Participant milestones
Measure
Acalabrutinib + BSC
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Overall Study
STARTED
31
31
Overall Study
COMPLETED
24
22
Overall Study
NOT COMPLETED
7
9

Reasons for withdrawal

Reasons for withdrawal
Measure
Acalabrutinib + BSC
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Overall Study
Death
2
2
Overall Study
Lost to Follow-up
2
4
Overall Study
Withdrawal by Subject
3
3

Baseline Characteristics

Acalabrutinib Study With Best Supportive Care Versus Best Supportive Care in Subjects Hospitalized With COVID-19.

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Total
n=62 Participants
Total of all reporting groups
Age, Continuous
52.5 Years
STANDARD_DEVIATION 13.3 • n=99 Participants
51.9 Years
STANDARD_DEVIATION 14.3 • n=107 Participants
52.2 Years
STANDARD_DEVIATION 13.7 • n=206 Participants
Age, Customized
< 65 years
26 Participants
n=99 Participants
25 Participants
n=107 Participants
51 Participants
n=206 Participants
Age, Customized
>= 65 years
5 Participants
n=99 Participants
6 Participants
n=107 Participants
11 Participants
n=206 Participants
Sex: Female, Male
Female
13 Participants
n=99 Participants
9 Participants
n=107 Participants
22 Participants
n=206 Participants
Sex: Female, Male
Male
18 Participants
n=99 Participants
22 Participants
n=107 Participants
40 Participants
n=206 Participants
Race/Ethnicity, Customized
HISPANIC OR LATINO
15 Participants
n=99 Participants
13 Participants
n=107 Participants
28 Participants
n=206 Participants
Race/Ethnicity, Customized
NOT HISPANIC OR LATINO
16 Participants
n=99 Participants
17 Participants
n=107 Participants
33 Participants
n=206 Participants
Race/Ethnicity, Customized
NOT REPORTED
2 Participants
n=99 Participants
3 Participants
n=107 Participants
5 Participants
n=206 Participants
Race/Ethnicity, Customized
MISSING
0 Participants
n=99 Participants
1 Participants
n=107 Participants
1 Participants
n=206 Participants
Race/Ethnicity, Customized
WHITE
18 Participants
n=99 Participants
20 Participants
n=107 Participants
38 Participants
n=206 Participants
Race/Ethnicity, Customized
BLACK OR AFRICAN AMERICAN
7 Participants
n=99 Participants
5 Participants
n=107 Participants
12 Participants
n=206 Participants
Race/Ethnicity, Customized
AMERICAN INDIAN OR ALASKA NATIVE
1 Participants
n=99 Participants
0 Participants
n=107 Participants
1 Participants
n=206 Participants
Race/Ethnicity, Customized
ASIAN
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race/Ethnicity, Customized
NATIVE HAWAIIAN OR OTHER PACIFIC ISLANDER
0 Participants
n=99 Participants
0 Participants
n=107 Participants
0 Participants
n=206 Participants
Race/Ethnicity, Customized
OTHER
3 Participants
n=99 Participants
2 Participants
n=107 Participants
5 Participants
n=206 Participants

PRIMARY outcome

Timeframe: Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC participants) or to 38 (+3) days after randomization (for BSC alone participants)

Population: Safety analysis set: If the participant receives at least 1 dose of acalabrutinib, they are summarized in the Acalabrutinib + BSC group. Otherwise, they are summarized in the BSC alone group. The number of participants in the BSC alone group (32) is greater than the number of participants randomized to this group (31) because one participant randomized to Acalabrutinib + BSC did not receive any acalabrutinib and therefore is included in the BSC alone group for the safety analysis set.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=30 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=32 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Participants With Adverse Events and Serious Adverse Events
Any Adverse Event
17 Participants
15 Participants
Number of Participants With Adverse Events and Serious Adverse Events
Any Serious Adverse Event
4 Participants
6 Participants

PRIMARY outcome

Timeframe: At Day 28

Population: Full analysis set (as randomized).

Respiratory failure, is defined based on resource utilization of any of the following modalities: a) Endotracheal intubation and mechanical ventilation b) Oxygen delivered by highflow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20 L/min with fraction of delivered oxygen ≥0.5) c) Noninvasive positive pressure ventilation or continuous positive airway pressure d) Extracorporeal membrane oxygenation

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percentage of Participants Alive and Free of Respiratory Failure at Day 28
80.6 Percentage of participants
Interval 67.4 to 93.9
83.9 Percentage of participants
Interval 71.4 to 96.3

SECONDARY outcome

Timeframe: At Day 14

Population: Full analysis set (as randomized).

Respiratory failure, is defined based on resource utilization of any of the following modalities: a) Endotracheal intubation and mechanical ventilation b) Oxygen delivered by highflow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20 L/min with fraction of delivered oxygen ≥0.5) c) Noninvasive positive pressure ventilation or continuous positive airway pressure d) Extracorporeal membrane oxygenation

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percentage of Participants Alive and Free of Respiratory Failure at Day 14
80.6 Percentage of participants
Interval 67.4 to 93.9
87.1 Percentage of participants
Interval 75.6 to 98.6

SECONDARY outcome

Timeframe: Days 3, 5, 7, 10, 14, 28

Population: Full analysis set (as randomized). Participants require a baseline and post-baseline result at the given timepoint to be included in the number analyzed for that timepoint.

Baseline is defined as the result obtained on the date of randomization. If no result was obtained on the date of randomization, the last result prior to the date of randomization is used. Percent change from baseline at Day X is calculated by multiplying the following result by 100%: (Day X value - Baseline value)/Baseline value. The mean of this result for all analyzed patients is taken to get the mean percent change from baseline.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percent Change From Baseline in C-reactive Protein.
Day 3
-41.08 Percent change
Standard Deviation 71.27
-26.74 Percent change
Standard Deviation 69.02
Percent Change From Baseline in C-reactive Protein.
Day 5
-72.05 Percent change
Standard Deviation 26.29
-49.55 Percent change
Standard Deviation 54.97
Percent Change From Baseline in C-reactive Protein.
Day 7
-75.72 Percent change
Standard Deviation 29.48
-40.53 Percent change
Standard Deviation 75.99
Percent Change From Baseline in C-reactive Protein.
Day 10/ Discharge (last post-baseline assessment if discharged from hospital prior to Day 10)
-73.85 Percent change
Standard Deviation 27.92
9.23 Percent change
Standard Deviation 354.21
Percent Change From Baseline in C-reactive Protein.
Day 10
-73.23 Percent change
Standard Deviation 29.34
212.22 Percent change
Standard Deviation 710.39
Percent Change From Baseline in C-reactive Protein.
Day 14
-56.62 Percent change
Standard Deviation 97.54
-56.61 Percent change
Standard Deviation 59.19
Percent Change From Baseline in C-reactive Protein.
Day 28
-66.89 Percent change
Standard Deviation 73.45
-39.63 Percent change
Standard Deviation 161.97

SECONDARY outcome

Timeframe: Days 3, 5, 7, 10, 14, 28

Population: Full analysis set (as randomized). Participants require a baseline and post-baseline result at the given timepoint to be included in the number analyzed for that timepoint.

Baseline is defined as the result obtained on the date of randomization. If no result was obtained on the date of randomization, the last result prior to the date of randomization is used. Percent change from baseline at Day X is calculated by multiplying the following result by 100%: (Day X value - Baseline value)/Baseline value. The mean of this result for all analyzed patients is taken to get the mean percent change from baseline.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percent Change From Baseline in Ferritin
Day 3
-15.25 Percent change
Standard Deviation 21.87
-7.38 Percent change
Standard Deviation 31.17
Percent Change From Baseline in Ferritin
Day 5
-29.67 Percent change
Standard Deviation 25.79
-17.93 Percent change
Standard Deviation 36.74
Percent Change From Baseline in Ferritin
Day 7
-36.59 Percent change
Standard Deviation 22.78
-9.67 Percent change
Standard Deviation 45.84
Percent Change From Baseline in Ferritin
Day 10/ Discharge (last post-baseline assessment if discharged from hospital prior to Day 10)
-24.48 Percent change
Standard Deviation 31.30
-20.38 Percent change
Standard Deviation 28.00
Percent Change From Baseline in Ferritin
Day 10
-47.58 Percent change
Standard Deviation 31.60
-1.24 Percent change
Standard Deviation 34.52
Percent Change From Baseline in Ferritin
Day 14
-45.25 Percent change
Standard Deviation 23.09
-40.20 Percent change
Standard Deviation 26.81
Percent Change From Baseline in Ferritin
Day 28
-62.28 Percent change
Standard Deviation 37.27
-63.69 Percent change
Standard Deviation 16.43

SECONDARY outcome

Timeframe: Days 3, 5, 7, 10, 14, 28

Population: Full analysis set (as randomized). Participants require a baseline and post-baseline result at the given timepoint to be included in the number analyzed for that timepoint.

Baseline is defined as the result obtained on the date of randomization. If no result was obtained on the date of randomization, the last result prior to the date of randomization is used. Percent change from baseline at Day X is calculated by multiplying the following result by 100%: (Day X value - Baseline value)/Baseline value. The mean of this result for all analyzed patients is taken to get the mean percent change from baseline.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percent Change From Baseline in Absolute Lymphocyte Count
Day 3
54.75 Percent change
Standard Deviation 92.83
34.66 Percent change
Standard Deviation 61.47
Percent Change From Baseline in Absolute Lymphocyte Count
Day 5
28.18 Percent change
Standard Deviation 64.35
76.86 Percent change
Standard Deviation 63.02
Percent Change From Baseline in Absolute Lymphocyte Count
Day 7
46.22 Percent change
Standard Deviation 72.11
102.80 Percent change
Standard Deviation 107.71
Percent Change From Baseline in Absolute Lymphocyte Count
Day 10/ Discharge (last post-baseline assessment if discharged from hospital prior to Day 10)
100.79 Percent change
Standard Deviation 142.10
97.45 Percent change
Standard Deviation 92.75
Percent Change From Baseline in Absolute Lymphocyte Count
Day 10
67.41 Percent change
Standard Deviation 73.04
118.26 Percent change
Standard Deviation 66.81
Percent Change From Baseline in Absolute Lymphocyte Count
Day 14
108.55 Percent change
Standard Deviation 110.73
106.85 Percent change
Standard Deviation 103.52
Percent Change From Baseline in Absolute Lymphocyte Count
Day 28
135.30 Percent change
Standard Deviation 88.00
127.09 Percent change
Standard Deviation 136.57

SECONDARY outcome

Timeframe: From randomization until 90 days after randomization.

Population: Full analysis set (as randomized).

Median overall survival, calculated using the Kaplan-Meier technique. Confidence interval for median overall survival (days) is derived based on Brookmeyer-Crowley method with log-log transformation.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Overall Survival
NA Days
The median and lower and upper limit of the 95% confidence interval (CI) could not be calculated as there were an insufficient number of participants with events.
NA Days
The median and lower and upper limit of the 95% confidence interval (CI) could not be calculated as there were an insufficient number of participants with events.

SECONDARY outcome

Timeframe: At Day 14 and at Day 28

Population: Full analysis set (as randomized).

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percentage of Participants Alive and Discharged From ICU
At Day 14
83.9 Percentage of participants
87.1 Percentage of participants
Percentage of Participants Alive and Discharged From ICU
At Day 28
83.9 Percentage of participants
87.1 Percentage of participants

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized).

Median time to first occurrence of respiratory failure or death, calculated using the Kaplan-Meier technique. Confidence interval for median overall survival (days) is derived based on Brookmeyer-Crowley method with log-log transformation.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Time From Randomization to First Occurrence of Respiratory Failure or Death on Study Due to Any Cause
NA Days
The median and lower and upper limit of the 95% confidence interval (CI) could not be calculated as there were an insufficient number of participants with events.
NA Days
The median and lower and upper limit of the 95% confidence interval (CI) could not be calculated as there were an insufficient number of participants with events.

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized).

Respiratory failure, is defined based on resource utilization of any of the following modalities: a) Endotracheal intubation and mechanical ventilation b) Oxygen delivered by highflow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20 L/min with fraction of delivered oxygen ≥0.5) c) Noninvasive positive pressure ventilation or continuous positive airway pressure d) Extracorporeal membrane oxygenation

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days Alive and Free of Respiratory Failure
26.2 Days
Standard Deviation 6.7
24.6 Days
Standard Deviation 7.3

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized).

Respiratory failure, is defined based on resource utilization of any of the following modalities: a) Endotracheal intubation and mechanical ventilation b) Oxygen delivered by highflow nasal cannula (heated, humidified, oxygen delivered via reinforced nasal cannula at flow rates \>20 L/min with fraction of delivered oxygen ≥0.5) c) Noninvasive positive pressure ventilation or continuous positive airway pressure d) Extracorporeal membrane oxygenation For participants who die (due to any cause) prior to Day 28, days from death to Day 28 are counted as days with respiratory failure. For participants in hospital and experiencing respiratory failure at the time they withdraw from the study, days from last known status to Day 28 are counted as days with respiratory failure.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days With Respiratory Failure
1.8 Days
Standard Deviation 6.7
3.4 Days
Standard Deviation 7.3

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized).

For this summary, the hospitalization must be considered clinically indicated to count as a day hospitalized. For participants who die (due to any cause) prior to Day 28, days from death to Day 28 are counted as days hospitalized. For participants in hospital at the time they withdraw from the study, days from last known status to Day 28 are counted as days hospitalized.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days Hospitalized
7.6 Days
Standard Deviation 7.3
9.0 Days
Standard Deviation 8.5

SECONDARY outcome

Timeframe: From randomization to 90 days after randomization.

Population: Full analysis set (as randomized).

For this summary, the ICU stay must be considered clinically indicated to count as a day in ICU. For participants who die (due to any cause) prior to Day 90, days from death to Day 90 are counted as days in ICU.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days in ICU
4.4 Days
Standard Deviation 17.1
7.0 Days
Standard Deviation 20.8

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized).

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days Alive Outside of Hospital
20.2 Days
Standard Deviation 7.3
18.9 Days
Standard Deviation 8.6

SECONDARY outcome

Timeframe: From randomization to 90 days after randomization.

Population: Full analysis set (as randomized).

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Number of Days Alive Outside of Hospital
75.3 Days
Standard Deviation 25.2
72.7 Days
Standard Deviation 25.0

SECONDARY outcome

Timeframe: Days 3, 5, 7, 10, 14, 28

Population: Full analysis set (as randomized). Participants require a baseline and post-baseline result at the given timepoint to be included in the number analyzed for that timepoint.

Baseline is defined as the result obtained on the date of randomization. Percent change from baseline at Day X is calculated by multiplying the following result by 100%: (Day X value - Baseline value)/Baseline value. The mean of this result for all analyzed patients is taken to get the mean percent change from baseline.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=31 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Percent Change From Baseline in Oxygenation Index
Day 3
14.24 Percent change
Standard Deviation 43.64
13.51 Percent change
Standard Deviation 30.67
Percent Change From Baseline in Oxygenation Index
Day 5
40.25 Percent change
Standard Deviation 74.37
18.71 Percent change
Standard Deviation 32.17
Percent Change From Baseline in Oxygenation Index
Day 7
18.41 Percent change
Standard Deviation 26.19
28.73 Percent change
Standard Deviation 31.15
Percent Change From Baseline in Oxygenation Index
Day 10/ Discharge (last post-baseline assessment if discharged from hospital prior to Day 10)
32.37 Percent change
Standard Deviation 66.33
36.67 Percent change
Standard Deviation 39.33
Percent Change From Baseline in Oxygenation Index
Day 10
-23.81 Percent change
Standard Deviation 27.53
33.09 Percent change
Standard Deviation 50.42
Percent Change From Baseline in Oxygenation Index
Day 14
54.87 Percent change
Standard Deviation 84.54
59.22 Percent change
Standard Deviation 43.22
Percent Change From Baseline in Oxygenation Index
Day 28
48.87 Percent change
Standard Deviation 51.77
65.59 Percent change
Standard Deviation 50.76

SECONDARY outcome

Timeframe: From randomization to 28 days after randomization.

Population: Full analysis set (as randomized). Participants require a baseline and at least one post-baseline result to be included in the number analyzed.

9-point category ordinal scale: 0. \* Uninfected, no clinical or virological evidence of infection 1. Ambulatory, no limitation of activities 2. Ambulatory, limitation of activities 3. Hospitalized - mild disease, no oxygen therapy 4. Hospitalized - mild disease, oxygen by mask or nasal prongs 5. Hospitalized - severe disease, non-invasive ventilation or high flow oxygen 6. Hospitalised - severe disease, intubation and mechanical ventilation 7. Hospitalized - severe disease, ventilation and additional organ support, such as pressors, renal replacement therapy, extracorporeal membrane oxygenation 8. Death Median time to first occurrence of respiratory failure or death, calculated using the Kaplan-Meier technique. Confidence interval for median overall survival (days) is derived based on Brookmeyer-Crowley method with log-log transformation.

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=31 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=29 Participants
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Time From Randomization to Clinical Improvement of at Least 2 Points on a 9-point Category Ordinal Scale
6.00 Days
Interval 5.0 to 7.0
7.00 Days
Interval 5.0 to 11.0

SECONDARY outcome

Timeframe: Day 3 and Day 7

Population: PK analysis set: all participants who received at least 1 dose of acalabrutinib and had at least 1 post-dose evaluable pharmacokinetic (PK) data point for acalabrutinib or ACP-5862.

Summary of plasma concentrations (ng/mL) of acalabrutinib

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=30 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Pharmacokinetics of Acalabrutinib
Day 3, Pre-dose
6.258 ng/mL
Geometric Coefficient of Variation 248
Pharmacokinetics of Acalabrutinib
Day 3, 0.5 hours post-dose
26.683 ng/mL
Geometric Coefficient of Variation 173
Pharmacokinetics of Acalabrutinib
Day 3, 1 hour post-dose
210.858 ng/mL
Geometric Coefficient of Variation 71.5
Pharmacokinetics of Acalabrutinib
Day 3, 2 hours post-dose
124.143 ng/mL
Geometric Coefficient of Variation 89.2
Pharmacokinetics of Acalabrutinib
Day 3, 4 hours post-dose
33.714 ng/mL
Geometric Coefficient of Variation 93.4
Pharmacokinetics of Acalabrutinib
Day 7, 1 hour post-dose
165.080 ng/mL
Geometric Coefficient of Variation NA
Only 1 participant had a result for this timepoint.
Pharmacokinetics of Acalabrutinib
Day 7, 4 hours post-dose
14.320 ng/mL
Geometric Coefficient of Variation NA
Only 1 participant had a result for this timepoint.

SECONDARY outcome

Timeframe: Day 3 and Day 7

Population: PK analysis set: all participants who received at least 1 dose of acalabrutinib and had at least 1 post-dose evaluable pharmacokinetic (PK) data point for acalabrutinib or ACP-5862.

Summary of plasma concentrations (ng/mL) of ACP-5862

Outcome measures

Outcome measures
Measure
Acalabrutinib + BSC
n=30 Participants
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Pharmacokinetics of ACP-5862
Day 3, Pre-dose
53.818 ng/mL
Geometric Coefficient of Variation 140
Pharmacokinetics of ACP-5862
Day 3, 0.5 hours post-dose
58.959 ng/mL
Geometric Coefficient of Variation 129
Pharmacokinetics of ACP-5862
Day 3, 1 hour post-dose
293.606 ng/mL
Geometric Coefficient of Variation 68.1
Pharmacokinetics of ACP-5862
Day 3, 2 hours post-dose
273.528 ng/mL
Geometric Coefficient of Variation 50.2
Pharmacokinetics of ACP-5862
Day 3, 4 hours post-dose
178.575 ng/mL
Geometric Coefficient of Variation 44.2
Pharmacokinetics of ACP-5862
Day 7, 1 hour post-dose
582.180 ng/mL
Geometric Coefficient of Variation NA
Only 1 participant had a result for this timepoint.
Pharmacokinetics of ACP-5862
Day 7, 4 hours post-dose
139.560 ng/mL
Geometric Coefficient of Variation NA
Only 1 participant had a result for this timepoint.

Adverse Events

Acalabrutinib + BSC

Serious events: 4 serious events
Other events: 5 other events
Deaths: 2 deaths

BSC Alone

Serious events: 6 serious events
Other events: 3 other events
Deaths: 2 deaths

Serious adverse events

Serious adverse events
Measure
Acalabrutinib + BSC
n=30 participants at risk
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=32 participants at risk
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Gastrointestinal disorders
Rectal haemorrhage
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Gastrointestinal disorders
Retroperitoneal haematoma
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Hepatobiliary disorders
Hepatotoxicity
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Hepatobiliary disorders
Portal vein thrombosis
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Infections and infestations
Pneumonia cytomegaloviral
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Infections and infestations
Staphylococcal sepsis
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Infections and infestations
Urinary tract infection
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
6.2%
2/32 • Number of events 2 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Investigations
Haemoglobin decreased
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Renal and urinary disorders
Chronic kidney disease
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Respiratory, thoracic and mediastinal disorders
Chronic obstructive pulmonary disease
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Respiratory, thoracic and mediastinal disorders
Pulmonary embolism
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Respiratory, thoracic and mediastinal disorders
Respiratory failure
0.00%
0/30 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
3.1%
1/32 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.

Other adverse events

Other adverse events
Measure
Acalabrutinib + BSC
n=30 participants at risk
Participants received acalabrutinib 100mg tablet orally twice daily for 10 days, plus best supportive care per the discretion of the Investigator and institutional guidelines.
BSC Alone
n=32 participants at risk
Participants received best supportive care per the discretion of the Investigator and institutional guidelines.
Nervous system disorders
Headache
13.3%
4/30 • Number of events 4 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
0.00%
0/32 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
Psychiatric disorders
Insomnia
3.3%
1/30 • Number of events 1 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.
9.4%
3/32 • Number of events 3 • Screening to 28 (+3) days after last dose of acalabrutinib (for acalabrutinib + BSC treated participants) or to 38 (+3) days after randomization (for BSC alone treated participants)
Population summarized is the safety analysis set (treatment actually received): All participants who received at least 1 dose of acalabrutinib were included in Acalabrutinib + BSC arm, and patients who did not receive any acalabrutinib were included in BSC alone arm.

Additional Information

Study Information Center

AstraZeneca

Phone: 1-877-240-9479

Results disclosure agreements

  • Principal investigator is a sponsor employee PI shall provide copies of any materials relating to the Study, or the Developed Technologies that either intends to publish or make any presentations relating to, at least 30 days in advance of publication, submission or presentation. PI shall not include in or shall remove from any proposed publication of any Confidential Information, errors or inaccuracies; and shall withhold publication, submission for publication or presentation for 90 days from the date the Company receives the material.
  • Publication restrictions are in place

Restriction type: OTHER