Trial Outcomes & Findings for Efficacy and Safety Study of Benralizumab in Adults and Adolescents Inadequately Controlled on Inhaled Corticosteroid Plus Long-acting β2 Agonist (NCT NCT01914757)

NCT ID: NCT01914757

Last Updated: 2017-01-25

Results Overview

The annual exacerbation rate is based on unadjudicated annual exacerbation rate reported by the investigator in the eCRF.

Recruitment status

COMPLETED

Study phase

PHASE3

Target enrollment

2508 participants

Primary outcome timeframe

Immediately following the first administration of study drug through Study Week 56.

Results posted on

2017-01-25

Participant Flow

2505 participants signed informed consent, 2181 entered screening/run-in period, 1306 participants were randomised to receive treatment with benralizumab 30 mg Q4W, Q8W, or placebo. Of the 1306 patients randomised, all (100.0%) received treatment with study drug.

Participant milestones

Participant milestones
Measure
Benralizumab 30 mg q.4 Weeks
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
Benralizumab administered subcutaneously every 8 weeks
Placebo
Placebo administered subcutaneously
Overall Study
STARTED
425
441
440
Overall Study
COMPLETED
389
390
402
Overall Study
NOT COMPLETED
36
51
38

Reasons for withdrawal

Reasons for withdrawal
Measure
Benralizumab 30 mg q.4 Weeks
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
Benralizumab administered subcutaneously every 8 weeks
Placebo
Placebo administered subcutaneously
Overall Study
Severe non-compliance to protocol
3
1
2
Overall Study
Lost to Follow-up
5
8
6
Overall Study
Withdrawal by Subject
15
27
19
Overall Study
Death
2
2
1
Overall Study
Adverse Event
4
3
4
Overall Study
Study specific withdrawal criteria
0
1
0
Overall Study
Eligibility criteria not fulfilled
2
0
2
Overall Study
Other reasons
5
9
4

Baseline Characteristics

Efficacy and Safety Study of Benralizumab in Adults and Adolescents Inadequately Controlled on Inhaled Corticosteroid Plus Long-acting β2 Agonist

Baseline characteristics by cohort

Baseline characteristics by cohort
Measure
Benralizumab 30 mg q.4 Weeks
n=425 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=441 Participants
Benralizumab administered subcutaneously every 8 weeks
Placebo
n=440 Participants
Placebo administered subcutaneously
Total
n=1306 Participants
Total of all reporting groups
Age, Continuous
50.0 Years
STANDARD_DEVIATION 13.6 • n=5 Participants
49 Years
STANDARD_DEVIATION 14.3 • n=7 Participants
48.8 Years
STANDARD_DEVIATION 15.1 • n=5 Participants
49.2 Years
STANDARD_DEVIATION 14.3 • n=4 Participants
Gender
Female
270 Participants
n=5 Participants
273 Participants
n=7 Participants
264 Participants
n=5 Participants
807 Participants
n=4 Participants
Gender
Male
155 Participants
n=5 Participants
168 Participants
n=7 Participants
176 Participants
n=5 Participants
499 Participants
n=4 Participants

PRIMARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS.

The annual exacerbation rate is based on unadjudicated annual exacerbation rate reported by the investigator in the eCRF.

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Annual Asthma Exacerbation Rate in Adult and Adolescent Patients With Uncontrolled Asthma for Patients With Baseline Eosinophils >=300/uL
0.93 Events/year
Interval 0.77 to 1.12
0.6 Events/year
Interval 0.48 to 0.74
0.66 Events/year
Interval 0.54 to 0.82

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \<300/uL, High-dose ICS.

The annual exacerbation rate is based on unadjudicated annual exacerbation rate reported by the investigator in the eCRF.

Outcome measures

Outcome measures
Measure
Placebo
n=122 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=116 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=125 Participants
Benralizumab administered subcutaneously every 8 weeks
Annual Asthma Exacerbation Rate in Adult and Adolescent Patients With Uncontrolled Asthma for Patients With Baseline Eosinophils <300/uL
1.21 Events/year
Interval 0.96 to 1.52
0.78 Events/year
Interval 0.59 to 1.02
0.73 Events/year
Interval 0.55 to 0.95

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Outcome measures

Outcome measures
Measure
Placebo
n=221 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=216 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=211 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 in Pre-bronchodilator FEV1 (L) Value for Patients With Baseline Eosinophils >=300/uL
0.206 Liter
Standard Deviation 0.471
0.34 Liter
Standard Deviation 0.469
0.332 Liter
Standard Deviation 0.518

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \<300/uL, High-dose ICS

Outcome measures

Outcome measures
Measure
Placebo
n=99 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=101 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=98 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 in Pre-bronchodilator FEV1 (L) Value for Patients With Baseline Eosinophils <300/uL
0.135 Liter
Standard Deviation 0.437
0.221 Liter
Standard Deviation 0.441
0.164 Liter
Standard Deviation 0.358

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Asthma symptoms during night time and daytime are recorded by the patient each morning and evening in the asthma daily diary. Symptom score values are from 0 (No asthma symptom) to 3 (unable to sleep because of asthma). Baseline is defined as the average of data collected from the evening of study day -10 to the morning of study day 1. Each timepoint is calculated as bi-weekly means based on daily diary data. If more than 50% of scores are missing in a 14 day period then this is considered as missing. Symptom score lower is better.

Outcome measures

Outcome measures
Measure
Placebo
n=187 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=184 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=185 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 Asthma Symptoms Score for Patients With Baseline Eosinophils >=300/uL
-1.2 Scores on a scale
Standard Deviation 1.19
-1.33 Scores on a scale
Standard Deviation 1.23
-1.4 Scores on a scale
Standard Deviation 1.17

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \<300/uL, High-dose ICS

Asthma symptoms during night time and daytime are recorded by the patient each morning and evening in the asthma daily diary. Symptom score values are from 0 (No asthma symptom) to 3 (unable to sleep because of asthma). Baseline is defined as the average of data collected from the evening of study day -10 to the morning of study day 1. Each timepoint is calculated as bi-weekly means based on daily diary data. If more than 50% of scores are missing in a 14 day period then this is considered as missing. Symptom score lower is better.

Outcome measures

Outcome measures
Measure
Placebo
n=89 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=88 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=85 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 Asthma Symptoms Score for Patients With Baseline Eosinophils <300/uL
-0.88 Scores on a scale
Standard Deviation 1.12
-1.05 Scores on a scale
Standard Deviation 1.14
-0.95 Scores on a scale
Standard Deviation 1.13

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Change from Baseline to Week 56 in number of Rescue medication use (puffs/day)

Outcome measures

Outcome measures
Measure
Placebo
n=187 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=184 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=185 Participants
Benralizumab administered subcutaneously every 8 weeks
Change in Asthma Rescue Medication Use
-2.65 Puffs per day
Standard Deviation 9.57
-2.0 Puffs per day
Standard Deviation 3.64
-2.92 Puffs per day
Standard Deviation 3.60

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Change from Baseline to Week 56 in Home lung function (morning and evening Peak expiratory flow \[PEF\])

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Home Lung Function Assessments Based on PEF
Change at Week 56, Morning (n=194, 193, 197)
23.961 L/min
Standard Deviation 71.509
41.745 L/min
Standard Deviation 78.534
43.375 L/min
Standard Deviation 91.865
Home Lung Function Assessments Based on PEF
Change at Week 56, Evening (n=194, 192, 197)
15.448 L/min
Standard Deviation 78.341
35.142 L/min
Standard Deviation 75.489
39.270 L/min
Standard Deviation 89.772

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Change from Baseline to Week 56 on Proportion of Nights with awakening due to asthma

Outcome measures

Outcome measures
Measure
Placebo
n=203 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=196 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=198 Participants
Benralizumab administered subcutaneously every 8 weeks
Proportion of Nights With Awakening Due to Asthma
-0.372 Proportion of nights
Standard Deviation 0.405
-0.373 Proportion of nights
Standard Deviation 0.388
-0.431 Proportion of nights
Standard Deviation 0.4

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

ACQ-6 contains one bronchodilator question and 5 symptom questions. Questions are rated from 0 (totally controlled) to 6 (severely uncontrolled). Mean ACQ-6 score is the average of the responses. Mean scores of \<=0.75 indicates well-controlled asthma, scores between 0.75 to \<=1.5 indicate partly controlled asthma, and \>1.5 indicates not well controlled asthma.

Outcome measures

Outcome measures
Measure
Placebo
n=197 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=192 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=185 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 in ACQ-6 for Patients With Baseline Eosinophils >=300/uL
-1.21 Scores on a scale
Standard Deviation 1.12
-1.34 Scores on a scale
Standard Deviation 1.13
-1.49 Scores on a scale
Standard Deviation 1.13

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \<300/uL, High-dose ICS

ACQ-6 contains one bronchodilator question and 5 symptom questions. Questions are rated from 0 (totally controlled) to 6 (severely uncontrolled). Mean ACQ-6 score is the average of the responses. Mean scores of \<=0.75 indicates well-controlled asthma, scores between 0.75 to \<=1.5 indicate partly controlled asthma, and \>1.5 indicates not well controlled asthma.

Outcome measures

Outcome measures
Measure
Placebo
n=92 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=88 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=83 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 in ACQ-6 for Patients With Baseline Eosinophils <300/uL
-0.83 Scores on a scale
Standard Deviation 1.07
-1.22 Scores on a scale
Standard Deviation 1.16
-1.06 Scores on a scale
Standard Deviation 1.02

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Number of Patients With >=1 Asthma Exacerbation
126 Participants
84 Participants
95 Participants

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Time to First Asthma Exacerbation
126 Participants
84 Participants
95 Participants

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56.

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Annual rate of asthma exacerbations that are associated with an emergency room visit or a hospitalization (adjudicated)

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Annual Rate of Asthma Exacerbation Resulting Emergency Room Visits and Hospitalizations
0.04 Events/year
Interval 0.02 to 0.07
0.04 Events/year
Interval 0.02 to 0.06
0.05 Events/year
Interval 0.03 to 0.08

SECONDARY outcome

Timeframe: Baseline, Week 4, Week 8, Week 16, Week 24, Week 32, Week 40, Week 48, Week 56, Week 60

Population: PK analysis set

Mean PK Concentration at each visit

Outcome measures

Outcome measures
Measure
Placebo
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=435 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=424 Participants
Benralizumab administered subcutaneously every 8 weeks
Pharmacokinetics of Benralizumab
Week 60 (n=49, 45)
53.63 ng/mL
Geometric Coefficient of Variation 1782.96
18.63 ng/mL
Geometric Coefficient of Variation 756.47
Pharmacokinetics of Benralizumab
Baseline (n=435, 419)
NA ng/mL
Geometric Coefficient of Variation NA
Value is less than lower limit of quantification
NA ng/mL
Geometric Coefficient of Variation NA
Value is less than lower limit of quantification
Pharmacokinetics of Benralizumab
Week 4 (n=430, 416)
650.04 ng/mL
Geometric Coefficient of Variation 154.61
703.16 ng/mL
Geometric Coefficient of Variation 89.48
Pharmacokinetics of Benralizumab
Week 8 (n=414, 395)
894.86 ng/mL
Geometric Coefficient of Variation 148.91
939.45 ng/mL
Geometric Coefficient of Variation 98.99
Pharmacokinetics of Benralizumab
Week 16 (n=390, 378)
936.43 ng/mL
Geometric Coefficient of Variation 247.46
252.54 ng/mL
Geometric Coefficient of Variation 274.74
Pharmacokinetics of Benralizumab
Week 24 (n=388, 361)
827.09 ng/mL
Geometric Coefficient of Variation 370.64
188.99 ng/mL
Geometric Coefficient of Variation 308.38
Pharmacokinetics of Benralizumab
Week 32 (n=345, 323)
823.21 ng/mL
Geometric Coefficient of Variation 362.43
166.53 ng/mL
Geometric Coefficient of Variation 289.34
Pharmacokinetics of Benralizumab
Week 40 (n=370, 338)
859.69 ng/mL
Geometric Coefficient of Variation 364.28
172.28 ng/mL
Geometric Coefficient of Variation 298.6
Pharmacokinetics of Benralizumab
Week 48 (n=355, 337)
888.09 ng/mL
Geometric Coefficient of Variation 333.98
186.5 ng/mL
Geometric Coefficient of Variation 290.28
Pharmacokinetics of Benralizumab
Week 56 (n=358, 344)
763.98 ng/mL
Geometric Coefficient of Variation 309.18
173.41 ng/mL
Geometric Coefficient of Variation 235.86

SECONDARY outcome

Timeframe: Pre-treatment until end of follow-up

Population: Safety analysis set

Anti-drug antibodies (ADA) responses at baseline and post baseline. Persistently positive is defined as positive at \>=2 post-baseline assessments (with \>=16 weeks between first and last positive) or positive at last post-baseline assessment. Transiently positive is defined as having at least one post-baseline ADA positive assessment and not fulfilling the conditions of persistently positive.

Outcome measures

Outcome measures
Measure
Placebo
n=440 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=438 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=427 Participants
Benralizumab administered subcutaneously every 8 weeks
Immunogenicity of Benralizumab
Positive at any visit (n=438, 427, 440)
13 Participants
63 Participants
64 Participants
Immunogenicity of Benralizumab
Base- and Post-baseline Postive (n=431, 414, 430)
5 Participants
5 Participants
5 Participants
Immunogenicity of Benralizumab
Only post-baseline positive (n=431, 420, 436)
8 Participants
55 Participants
57 Participants
Immunogenicity of Benralizumab
Persistently positive (n=431, 420, 436)
7 Participants
44 Participants
42 Participants
Immunogenicity of Benralizumab
Transient positive (n=431, 420, 436)
6 Participants
16 Participants
20 Participants
Immunogenicity of Benralizumab
Only baseline positive (n=438, 421, 434)
0 Participants
3 Participants
2 Participants

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Safety analysis set

Extent of exposure is defined as the duration of treatment in days

Outcome measures

Outcome measures
Measure
Placebo
n=440 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=438 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=428 Participants
Benralizumab administered subcutaneously every 8 weeks
Extent of Exposure
336.69 Days
Standard Deviation 82.148
344.14 Days
Standard Deviation 73.129
331.64 Days
Standard Deviation 88.839

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

AQLQ(S)+12 overall score is defined as the average of all 32 questions in the AQLQ(S)+12 questionnaire. AQLQ(S)+12 is a 7-point scale questionnaire, ranging from 7 (no impairment) to 1 (severe impairment). Total or domain score change of \>=0.5 are considered clinically meaningful.

Outcome measures

Outcome measures
Measure
Placebo
n=191 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=186 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=180 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Change From Baseline to Week 56 in AQLQ(S)+12
1.32 Scores on a scale
Standard Deviation 1.19
1.44 Scores on a scale
Standard Deviation 1.15
1.61 Scores on a scale
Standard Deviation 1.24

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

EQ-5D-5L VAS is to rate current health status on a scale of 0-100, with 0 being the worst imaginable health state.

Outcome measures

Outcome measures
Measure
Placebo
n=191 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=183 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=179 Participants
Benralizumab administered subcutaneously every 8 weeks
Change From Baseline to Week 56 in EQ-5D-5L VAS
12.1 Scores on a scale
Standard Deviation 20.13
13.8 Scores on a scale
Standard Deviation 21.52
15.5 Scores on a scale
Standard Deviation 20.36

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS, who were employed

WPAI+CIQ (Work Productivity and Activity Impairment plus Classroom Impairment Questionnaire) contains 10 questions. Work productivity loss is derived by sum of percentage of missed work due to asthma and product of percentage of actual working hours times degree of asthma affecting work productivity while working. Percentage of missed work due to asthma is calculated by number of hours missed work due to asthma divided by total number of hours missed work plus number of hours actually worked. This is only applicable to patients who were employed.

Outcome measures

Outcome measures
Measure
Placebo
n=85 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=92 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=74 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Work Productivity Loss Due to Asthma
27.29 Percent of productivity loss
Standard Deviation 25.802
26.56 Percent of productivity loss
Standard Deviation 25.589
24.44 Percent of productivity loss
Standard Deviation 24.689

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS, who took classes

WPAI+CIQ (Work Productivity and Activity Impairment plus Classroom Impairment Questionnaire) contains 10 questions. Classroom productivity loss is derived by sum of percentage of missed classes due to asthma and product of percentage of actual hours attending classes times degree of asthma affecting classroom productivity. Percentage of missed classes due to asthma is calculated by number of hours missed classes due to asthma divided by total number of hours missed classes plus number of hours actually attending classes. This is only applicable for patients who took classes.

Outcome measures

Outcome measures
Measure
Placebo
n=5 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=14 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=5 Participants
Benralizumab administered subcutaneously every 8 weeks
Mean Productivity Loss Due to Asthma in Classroom
33.5 percent of productivity loss
Standard Deviation 25.593
19.92 percent of productivity loss
Standard Deviation 23.765
14 percent of productivity loss
Standard Deviation 16.733

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Number of Participants That Utilized Health Care Resources
Hospitalizations
12 Participants
11 Participants
14 Participants
Number of Participants That Utilized Health Care Resources
Emergency department visits
18 Participants
11 Participants
12 Participants
Number of Participants That Utilized Health Care Resources
Unscheduled outpatient visits
83 Participants
72 Participants
75 Participants
Number of Participants That Utilized Health Care Resources
Home visits
2 Participants
3 Participants
1 Participants
Number of Participants That Utilized Health Care Resources
Telephone calls
58 Participants
50 Participants
63 Participants
Number of Participants That Utilized Health Care Resources
Ambulance transports
5 Participants
2 Participants
3 Participants

SECONDARY outcome

Timeframe: Immediately following the first administration of study drug through Study Week 56

Population: Full analysis set, Baseline eosinophils \>=300/uL, High-dose ICS

CGIC (clinician global impression of change), and PGIC (patient global impression of change) are overall evaluation of response to treatment, conducted separately by investigator and patient using a 7-point rating scale, ranging from 1 (Very much Improved), to 7 (Very much Worse). This endpoint was added after the second protocol amendment, thus not all patients had data to be analyzed.

Outcome measures

Outcome measures
Measure
Placebo
n=248 Participants
Placebo administered subcutaneously
Benralizumab 30 mg q.4 Weeks
n=241 Participants
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=239 Participants
Benralizumab administered subcutaneously every 8 weeks
Patient and Clinician Assessment of Response to Treatment
CGIC, Improved
97 Participants
109 Participants
96 Participants
Patient and Clinician Assessment of Response to Treatment
CGIC, Much Improved
65 Participants
82 Participants
71 Participants
Patient and Clinician Assessment of Response to Treatment
CGIC, Very Much Improved
14 Participants
26 Participants
23 Participants
Patient and Clinician Assessment of Response to Treatment
CGIC, Total
176 Participants
217 Participants
190 Participants
Patient and Clinician Assessment of Response to Treatment
PGIC, Improved
99 Participants
109 Participants
95 Participants
Patient and Clinician Assessment of Response to Treatment
PGIC, Much Improved
66 Participants
83 Participants
80 Participants
Patient and Clinician Assessment of Response to Treatment
PGIC, Very Much Improved
17 Participants
34 Participants
30 Participants
Patient and Clinician Assessment of Response to Treatment
PGIC, Total
182 Participants
226 Participants
205 Participants

Adverse Events

Benralizumab 30 mg q.4 Weeks

Serious events: 46 serious events
Other events: 244 other events
Deaths: 0 deaths

Benralizumab 30 mg q.8 Weeks

Serious events: 41 serious events
Other events: 232 other events
Deaths: 0 deaths

Placebo

Serious events: 61 serious events
Other events: 264 other events
Deaths: 0 deaths

Serious adverse events

Serious adverse events
Measure
Benralizumab 30 mg q.4 Weeks
n=438 participants at risk
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=428 participants at risk
Benralizumab administered subcutaneously every 8 weeks
Placebo
n=440 participants at risk
Placebo administered subcutaneously
Blood and lymphatic system disorders
Anaemia
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Acute coronary syndrome
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Cardiac disorders
Acute myocardial infarction
0.23%
1/438 • Number of events 1
0.00%
0/428
0.23%
1/440 • Number of events 2
Cardiac disorders
Angina pectoris
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Cardiac disorders
Aortic valve stenosis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Atrial fibrillation
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Cardiac disorders
Atrioventricular block complete
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Cardiac arrest
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Cardiac failure congestive
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Cardiac disorders
Coronary artery disease
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Myocardial infarction
0.23%
1/438 • Number of events 1
0.00%
0/428
0.23%
1/440 • Number of events 1
Cardiac disorders
Myocardial ischaemia
0.00%
0/438
0.00%
0/428
0.45%
2/440 • Number of events 2
Cardiac disorders
Supraventricular tachycardia
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Eye disorders
Cataract
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Gastrointestinal disorders
Gastritis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Gastrointestinal disorders
Gastroduodenitis
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Gastrointestinal disorders
Inguinal hernia
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Gastrointestinal disorders
Large intestine polyp
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Gastrointestinal disorders
Rectal polyp
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
General disorders
Chest pain
0.23%
1/438 • Number of events 1
0.23%
1/428 • Number of events 1
0.00%
0/440
General disorders
Death
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
General disorders
Non-cardiac chest pain
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Hepatobiliary disorders
Cholecystitis
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Hepatobiliary disorders
Cholecystitis acute
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Hepatobiliary disorders
Cholecystitis chronic
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Hepatobiliary disorders
Cholelithiasis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Hepatobiliary disorders
Hepatitis alcoholic
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Immune system disorders
Anaphylactic reaction
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Immune system disorders
Drug hypersensitivity
0.00%
0/438
0.23%
1/428 • Number of events 1
0.23%
1/440 • Number of events 1
Infections and infestations
Appendicitis
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Bacterial infection
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Infections and infestations
Bronchitis
0.23%
1/438 • Number of events 1
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Bronchitis haemophilus
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Chronic sinusitis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Infections and infestations
Cytomegalovirus hepatitis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Infections and infestations
Gastroenteritis
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Herpes zoster
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Influenza
0.00%
0/438
0.47%
2/428 • Number of events 2
0.00%
0/440
Infections and infestations
Liver abscess
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Infections and infestations
Pneumonia
0.46%
2/438 • Number of events 2
0.00%
0/428
0.91%
4/440 • Number of events 6
Infections and infestations
Pneumonia bacterial
0.46%
2/438 • Number of events 2
0.00%
0/428
0.68%
3/440 • Number of events 3
Infections and infestations
Pseudomonas bronchitis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Infections and infestations
Pseudomonas infection
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Infections and infestations
Respiratory tract infection bacterial
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Infections and infestations
Sepsis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Infections and infestations
Sinusitis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Infections and infestations
Upper respiratory tract infection
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Infections and infestations
Urinary tract infection
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Injury, poisoning and procedural complications
Anastomotic ulcer
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Injury, poisoning and procedural complications
Humerus fracture
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Injury, poisoning and procedural complications
Injury
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Injury, poisoning and procedural complications
Joint injury
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Injury, poisoning and procedural complications
Patella fracture
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Injury, poisoning and procedural complications
Procedural complication
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Injury, poisoning and procedural complications
Road traffic accident
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Injury, poisoning and procedural complications
Thermal burn
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Injury, poisoning and procedural complications
Toxicity to various agents
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Metabolism and nutrition disorders
Obesity
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Musculoskeletal and connective tissue disorders
Back pain
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Musculoskeletal and connective tissue disorders
Dupuytren's contracture
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Musculoskeletal and connective tissue disorders
Epiphysiolysis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Musculoskeletal and connective tissue disorders
Intervertebral disc disorder
0.23%
1/438 • Number of events 1
0.00%
0/428
0.23%
1/440 • Number of events 1
Musculoskeletal and connective tissue disorders
Jaw cyst
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Musculoskeletal and connective tissue disorders
Muscular weakness
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Musculoskeletal and connective tissue disorders
Osteoarthritis
0.23%
1/438 • Number of events 1
0.23%
1/428 • Number of events 1
0.23%
1/440 • Number of events 1
Musculoskeletal and connective tissue disorders
Rheumatoid arthritis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Musculoskeletal and connective tissue disorders
Rotator cuff syndrome
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Musculoskeletal and connective tissue disorders
Spinal osteoarthritis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Musculoskeletal and connective tissue disorders
Spondylolisthesis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Breast cancer female
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Colon neoplasm
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Gallbladder cancer
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Gastric cancer
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Thyroid adenoma
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Neoplasms benign, malignant and unspecified (incl cysts and polyps)
Uterine leiomyoma
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Nervous system disorders
Cerebrovascular accident
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Nervous system disorders
Lumbar radiculopathy
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 2
Nervous system disorders
Sciatica
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Nervous system disorders
Seizure
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Nervous system disorders
Syncope
0.23%
1/438 • Number of events 1
0.23%
1/428 • Number of events 1
0.00%
0/440
Nervous system disorders
Transient ischaemic attack
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Psychiatric disorders
Completed suicide
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Psychiatric disorders
Depression
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Renal and urinary disorders
Calculus ureteric
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Renal and urinary disorders
Nephrolithiasis
0.46%
2/438 • Number of events 3
0.00%
0/428
0.00%
0/440
Reproductive system and breast disorders
Benign prostatic hyperplasia
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Asthma
4.8%
21/438 • Number of events 25
4.4%
19/428 • Number of events 27
5.2%
23/440 • Number of events 38
Respiratory, thoracic and mediastinal disorders
Hyperventilation
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Nasal polyps
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Respiratory, thoracic and mediastinal disorders
Nasal turbinate hypertrophy
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Respiratory, thoracic and mediastinal disorders
Pleural effusion
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Skin and subcutaneous tissue disorders
Parakeratosis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Skin and subcutaneous tissue disorders
Urticaria
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Skin and subcutaneous tissue disorders
Urticaria papular
0.00%
0/438
0.23%
1/428 • Number of events 1
0.00%
0/440
Vascular disorders
Aortic stenosis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Vascular disorders
Hypertension
0.00%
0/438
0.23%
1/428 • Number of events 1
0.23%
1/440 • Number of events 1
Vascular disorders
Hypertensive crisis
0.23%
1/438 • Number of events 1
0.00%
0/428
0.00%
0/440
Vascular disorders
Phlebitis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1
Vascular disorders
Venous thrombosis
0.00%
0/438
0.00%
0/428
0.23%
1/440 • Number of events 1

Other adverse events

Other adverse events
Measure
Benralizumab 30 mg q.4 Weeks
n=438 participants at risk
Benralizumab administered subcutaneously every 4 weeks
Benralizumab 30 mg q.8 Weeks
n=428 participants at risk
Benralizumab administered subcutaneously every 8 weeks
Placebo
n=440 participants at risk
Placebo administered subcutaneously
General disorders
Pyrexia
3.7%
16/438 • Number of events 20
3.0%
13/428 • Number of events 13
1.4%
6/440 • Number of events 6
Infections and infestations
Acute sinusitis
1.4%
6/438 • Number of events 6
1.2%
5/428 • Number of events 6
3.2%
14/440 • Number of events 19
Infections and infestations
Bronchitis
9.1%
40/438 • Number of events 51
10.5%
45/428 • Number of events 54
12.3%
54/440 • Number of events 72
Infections and infestations
Influenza
5.5%
24/438 • Number of events 27
2.8%
12/428 • Number of events 17
5.7%
25/440 • Number of events 27
Infections and infestations
Nasopharyngitis
20.5%
90/438 • Number of events 132
19.2%
82/428 • Number of events 131
20.9%
92/440 • Number of events 147
Infections and infestations
Pharyngitis
3.9%
17/438 • Number of events 21
2.3%
10/428 • Number of events 10
1.8%
8/440 • Number of events 9
Infections and infestations
Rhinitis
2.7%
12/438 • Number of events 13
4.2%
18/428 • Number of events 24
3.9%
17/440 • Number of events 22
Infections and infestations
Sinusitis
5.3%
23/438 • Number of events 31
4.9%
21/428 • Number of events 30
8.9%
39/440 • Number of events 56
Infections and infestations
Upper respiratory tract infection
6.6%
29/438 • Number of events 35
8.6%
37/428 • Number of events 53
9.5%
42/440 • Number of events 53
Musculoskeletal and connective tissue disorders
Arthralgia
1.8%
8/438 • Number of events 10
3.3%
14/428 • Number of events 16
2.3%
10/440 • Number of events 14
Musculoskeletal and connective tissue disorders
Back pain
3.9%
17/438 • Number of events 18
2.6%
11/428 • Number of events 11
3.6%
16/440 • Number of events 20
Nervous system disorders
Headache
7.5%
33/438 • Number of events 63
7.9%
34/428 • Number of events 65
7.3%
32/440 • Number of events 57
Respiratory, thoracic and mediastinal disorders
Asthma
11.4%
50/438 • Number of events 76
7.5%
32/428 • Number of events 50
11.8%
52/440 • Number of events 96
Respiratory, thoracic and mediastinal disorders
Cough
2.3%
10/438 • Number of events 11
3.3%
14/428 • Number of events 18
1.8%
8/440 • Number of events 12
Respiratory, thoracic and mediastinal disorders
Rhinitis allergic
4.8%
21/438 • Number of events 25
3.7%
16/428 • Number of events 19
5.5%
24/440 • Number of events 28
Vascular disorders
Hypertension
2.7%
12/438 • Number of events 12
4.2%
18/428 • Number of events 23
5.0%
22/440 • Number of events 24

Additional Information

Mitchell Goldman, Medical Science Director

AstraZeneca

Phone: +1 301 398 0323

Results disclosure agreements

  • Principal investigator is a sponsor employee ≥ 60 days prior to submission of material for publication/presentation, Institution and PI shall jointly provide AZ with material for review. No publication/presentation may include any of AZ's Confidential Information without AZ's written approval. AZ can request Inst. and PI to withhold material from submission for publication/presentation for an additional 90 days to allow AZ to establish and preserve its proprietary rights in the material being submitted for publication or presentation.
  • Publication restrictions are in place

Restriction type: OTHER