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Impact of Omalizumab on Quality of Life Measures and Angioedema Occurrence in Patients With CSU Refractory to Therapy

A Randomized, Double-blind, Placebo-controlled, 28-week Treatment With a 8 Week Follow-up to Investigate the Impact of Omalizumab on Quality of Life Measures and the Incidence and Severity of Angioedema Despite H1-antihistamine Therapy.

Status
Completed
Phases
Phase 3
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT01723072
Acronym
X-ACT
Enrollment
91
Registered
2012-11-07
Start date
2013-01-23
Completion date
2014-05-09
Last updated
2020-09-09

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

Conditions

Angioedema, Chronic Spontaneous Urticaria

Keywords

Chronic spontanous urticaria, refractory CSU, Angioedema

Brief summary

This study will assess the impact of omalizumab on the quality of life improvement when added to the standard therapy in refractory patients suffering from chronic spontaneous urticaria and angioedema.

Detailed description

This study will be conducted using a double-blind, placebo-controlled, randomized, multicenter design to investigate the impact of omalizumab on Quality of Life (QoL) in Chronic Spontaneous Urticaria (CSU) and will assess its effectiveness in reducing and/or inhibiting the occurrence, time-course and severity of angioedema episodes. Omalizumab is administered subcutaneously every 4 weeks as an add-on therapy to the current approved treatment of adult CSU patients. The treatment period is 28 weeks which is followed by an 8-week follow-up. The study aims to enroll approximately 70 patients. The study is divided into a 2-week screening period, a 28-week double-blind treatment phase with omalizumab or placebo-omalizumab, and an 8-week follow-up phase.

Interventions

BIOLOGICALOmalizumab

Humanized monoclonal antibody against human IgE

DRUGPlacebo

Placebo to omalizumab

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

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

Eligibility

Sex/Gender
ALL
Age
18 Years to 75 Years
Healthy volunteers
No

Inclusion criteria

* Diagnosis of chronic spontaneous urticaria (CSU) refractory to H1-antihistamine treatment * Presence of itch an hives for more than 6 weeks * UAS7 score of more than 14 (range 0-42) * Patient has history of insufficient response to 4x of the approved dose of H1-antihistamines * CSU diagnosis for more than 6 months * Angioedema at least 4x in the last 6 months

Exclusion criteria

* Patients with non urticaria associated angioedema * History of hypersensitivity to omalizumab or the rescue medication or to drugs of similar chemical structure * Evidence of parasitic infection * Previous treatment with omalizumab within the last 6 months prior to screening * History of anaphylactic shock * Woman who are pregnant or breast feeding * Other protocol-defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Mean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)Baseline, 4, 12, 20, 28 and 36 weeksThe CU-Q2oL is a questionnaire that measures the relative burden of chronic urticaria on subjective well-being. It consists of 23 questions in 3 domains (symptoms, general impairment, difficulties and problems due to urticaria). Participants are asked to respond how much they are troubled by each problem on a 5-point Likert scale (1= not at all to 5= very much). An overall score is calculated and normalized to a scale of 1 to 100.

Secondary

MeasureTime frameDescription
Mean Time Interval Between Successive Angioedema Episodes of the First 15 EpisodesBaseline to week 28
Change of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Baseline to week 28; and follow-up period (to week 36)A cumulative activity score, evaluated in the screening period and throughout the study. The records each evening on a daily basis symptoms of itch and hives into a patient diary. min. score = 0 ; max. score= 100
Diameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)week -2 to -1data points per group
Diameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)weeks 25 to 28data points per group
Diameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)weeks 33 to 36data points per group
Shortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)weeks -2 to -1data points per group
Shortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)weeks 25 to 28data points per group
Number of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Baseline, week 28; and the follow-up period (weeks 29-36)
Change of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)baseline to week 28; and then follow-up to week 36The AE-Q2oL is a questionnaire for patients suffering from angioedema. It consists of 29 questions relevant to angioedema and its specific impact on quality of life. Patients are asked to respond how much they are troubled be each problem on a 5-point Likert scale (1= does not apply to 5= very much). An overall score is calculated and a higher score indicates lower quality of life. A negative change score (week 28 score minus baseline score) indicates improvement. Each AE-QoL question has 5 answer options (scored 1-5), with lower and higher scores indicting less and more adverse impact, respectively. The total score is calculated, which is then transformed into a linear scale that ranges from 0 to 100, with a score of 100 indicating the worst possible impairment of HRQoL
Rescue Medication During the Treatment Periodbaseline to 28 weeks
Days of Rescue Medication During the Treatment Periodbaseline to 28 weeksdata points per group
Days of Rescue Medication During the Follow-up Periodweeks 33 to 36data points per group
Change of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)baseline to week 28; and then follow-up to week 36The UAS7 is the sum of urticaria activity scores over a seven day period. The possible range of the weekly UAS7 score is 0-42. 0 means complete response and a better outcome and 42 means no response and a worse outcome. Complete UAS7 response is defined as UAS7=0. The UAS7 is the sum of the Hive Severity Score over seven days (HSS7) and the Itch Severity Score over seven days (ISS7) . The Hive Severity Score has a scale of 0 (none) to 3 (intense/severe). Complete hives response is defined as HSS7=0. The Itch Severity Score has a scale of 0 (None) to 3 (Severe (difficult to tolerate)). Complete itch response is defined as ISS7=0
Change of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)baseline to week 28; and follow-up to week 36change in Dermatology Quality of Life Index scores The DLQI is a ten item general dermatology disability index designed to assess health-related quality of life in adult participants with skin diseases such as eczema, psoriasis, acne and viral worts. It is a self-administered questionnaire which includes domains of daily activity, leisure, personal relationships, symptoms and feelings, treatment and school/work activities. Each domain has 4 response categories ranging from 0 (not at all) to 3 (very much). Not relevant is a valid score also and is scored as 0. The DLQI total score is a sum of all 10 responses. Scores range from 0 to 30 with higher scores indicating greater health-related quality of life impairment.
Shortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)weeks 33 to 36data points per group

Countries

Germany

Participant flow

Participants by arm

ArmCount
Omalizumab
Omalizumab once a month via subcutaneous injection.
44
Placebo
Placebo of omalizumab once a month via subcutaneous injection
47
Total91

Withdrawals & dropouts

PeriodReasonFG000FG001
Overall StudyDiscon for rescue medication after wk 2405
Overall StudyOther43
Overall StudyWithdrawal by Subject713

Baseline characteristics

CharacteristicTotalPlaceboOmalizumab
Age, Continuous42.9 years
STANDARD_DEVIATION 12.3
41.1 years
STANDARD_DEVIATION 10.6
44.9 years
STANDARD_DEVIATION 13.7
Age, Customized
<65 years
88 Participants47 Participants41 Participants
Age, Customized
>=65 years
3 Participants0 Participants3 Participants
BMI28.2 kg/m^2
STANDARD_DEVIATION 6.1
29.0 kg/m^2
STANDARD_DEVIATION 5.9
27.3 kg/m^2
STANDARD_DEVIATION 6.3
BMI group
<18.5
0 Participants0 Participants0 Participants
BMI group
18.5-25
32 Participants12 Participants20 Participants
BMI group
>25
59 Participants35 Participants24 Participants
Disease history and baseline charactaristics
>10 years
20 Participants7 Participants13 Participants
Disease history and baseline charactaristics
2-10 years
45 Participants27 Participants18 Participants
Disease history and baseline charactaristics
<=2 years
82 Participants40 Participants42 Participants
Disease history and baseline charactaristics
<2 years
26 Participants13 Participants13 Participants
Disease history and baseline charactaristics
3-5 years
9 Participants7 Participants2 Participants
Disease history and baseline charactaristics
>5 years
0 Participants0 Participants0 Participants
Disease history and baseline charactaristics
No
65 Participants32 Participants33 Participants
Disease history and baseline charactaristics
Yes
26 Participants15 Participants11 Participants
Disease history and baseline charactaristics7.9 years
STANDARD_DEVIATION 9
7.4 years
STANDARD_DEVIATION 8.8
8.4 years
STANDARD_DEVIATION 9.3
[Disease history and baseline characteristics of angioedema (FAS)]
<24 hours
50 Participants25 Participants25 Participants
[Disease history and baseline characteristics of angioedema (FAS)]
>24 hours
41 Participants22 Participants19 Participants
Disease history and baseline characteristics of angioedema (FAS)
Arms/legs
52 participants28 participants24 participants
Disease history and baseline characteristics of angioedema (FAS)
Eyes/lids/periorbital
77 participants41 participants36 participants
Disease history and baseline characteristics of angioedema (FAS)
Hands
61 participants34 participants27 participants
Disease history and baseline characteristics of angioedema (FAS)
Lips/perioral
78 participants41 participants37 participants
Disease history and baseline characteristics of angioedema (FAS)
Mouth/laryngeal
50 participants28 participants22 participants
Disease history and baseline characteristics of angioedema (FAS)
Trunk
30 participants20 participants10 participants
Disease history and baseline characteristics of angioedema (FAS)
<6 episodes a year
4 Participants3 Participants1 Participants
Disease history and baseline characteristics of angioedema (FAS)
>6 episodes per year
33 Participants14 Participants19 Participants
Disease history and baseline characteristics of angioedema (FAS)
Daily
9 Participants6 Participants3 Participants
Disease history and baseline characteristics of angioedema (FAS)
Weekly
45 Participants24 Participants21 Participants
Race/Ethnicity, Customized
Asian
2 Participants1 Participants1 Participants
Race/Ethnicity, Customized
Caucasian
88 Participants46 Participants42 Participants
Race/Ethnicity, Customized
Other
1 Participants0 Participants1 Participants
Sex: Female, Male
Female
63 Participants33 Participants30 Participants
Sex: Female, Male
Male
28 Participants14 Participants14 Participants
Smoking status
Current smoker
37 Participants18 Participants19 Participants
Smoking status
Ex-smoker
23 Participants16 Participants7 Participants
Smoking status
Never smoked
31 Participants13 Participants18 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
deaths
Total, all-cause mortality
— / —— / —
other
Total, other adverse events
19 / 4429 / 47
serious
Total, serious adverse events
4 / 442 / 47

Outcome results

Primary

Mean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)

The CU-Q2oL is a questionnaire that measures the relative burden of chronic urticaria on subjective well-being. It consists of 23 questions in 3 domains (symptoms, general impairment, difficulties and problems due to urticaria). Participants are asked to respond how much they are troubled by each problem on a 5-point Likert scale (1= not at all to 5= very much). An overall score is calculated and normalized to a scale of 1 to 100.

Time frame: Baseline, 4, 12, 20, 28 and 36 weeks

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V5 (week 12)-32.1 scoreStandard Deviation 21.8
OmalizumabMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V9 (week 28)-35.1 scoreStandard Deviation 24.2
OmalizumabMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V7 (week 20)-31.4 scoreStandard Deviation 23.7
OmalizumabMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)Follow-up (week 36)-23.9 scoreStandard Deviation 23
OmalizumabMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V3 (week 4)-25.5 scoreStandard Deviation 21.3
PlaceboMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)Follow-up (week 36)-14.7 scoreStandard Deviation 19.2
PlaceboMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V3 (week 4)-6.4 scoreStandard Deviation 15.9
PlaceboMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V5 (week 12)-12.1 scoreStandard Deviation 20.3
PlaceboMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V7 (week 20)-16.2 scoreStandard Deviation 18.8
PlaceboMean Change From Baseline Using Chronic Urticaria Quality of Life Questionnaire (CU-Q2oL) Total Scores During the Study: Unadjusted Analysis and ANCOVA (LOCF) (FAS)V9 (week 28)-13.9 scoreStandard Deviation 17.7
Secondary

Change of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)

The AE-Q2oL is a questionnaire for patients suffering from angioedema. It consists of 29 questions relevant to angioedema and its specific impact on quality of life. Patients are asked to respond how much they are troubled be each problem on a 5-point Likert scale (1= does not apply to 5= very much). An overall score is calculated and a higher score indicates lower quality of life. A negative change score (week 28 score minus baseline score) indicates improvement. Each AE-QoL question has 5 answer options (scored 1-5), with lower and higher scores indicting less and more adverse impact, respectively. The total score is calculated, which is then transformed into a linear scale that ranges from 0 to 100, with a score of 100 indicating the worst possible impairment of HRQoL

Time frame: baseline to week 28; and then follow-up to week 36

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12 (n= 35, 29)-37.4 AE-QoL ScoreStandard Deviation 23.8
OmalizumabChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28 (n=34, 25)-41.4 AE-QoL ScoreStandard Deviation 25.7
OmalizumabChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20 (n=34,27)-37.1 AE-QoL ScoreStandard Deviation 26.5
OmalizumabChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36 (n=33,23)-27.2 AE-QoL ScoreStandard Deviation 26.4
OmalizumabChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4 (n=38,36)-26.5 AE-QoL ScoreStandard Deviation 20.4
PlaceboChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36 (n=33,23)-24.6 AE-QoL ScoreStandard Deviation 23.3
PlaceboChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4 (n=38,36)-10.3 AE-QoL ScoreStandard Deviation 21
PlaceboChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12 (n= 35, 29)-20.4 AE-QoL ScoreStandard Deviation 27.4
PlaceboChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20 (n=34,27)-28.8 AE-QoL ScoreStandard Deviation 22
PlaceboChange of AE-Q2oL Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28 (n=34, 25)-24.2 AE-QoL ScoreStandard Deviation 24.3
Secondary

Change of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)

A cumulative activity score, evaluated in the screening period and throughout the study. The records each evening on a daily basis symptoms of itch and hives into a patient diary. min. score = 0 ; max. score= 100

Time frame: Baseline to week 28; and follow-up period (to week 36)

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 12-19.0 AAS (Angioedema Activity Score)Standard Deviation 22.4
OmalizumabChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 28-20.6 AAS (Angioedema Activity Score)Standard Deviation 21.5
OmalizumabChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 20-21.3 AAS (Angioedema Activity Score)Standard Deviation 21.6
OmalizumabChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 36-9.6 AAS (Angioedema Activity Score)Standard Deviation 18.4
OmalizumabChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 4-17.7 AAS (Angioedema Activity Score)Standard Deviation 20
PlaceboChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 36-15.3 AAS (Angioedema Activity Score)Standard Deviation 20.8
PlaceboChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 4-5.0 AAS (Angioedema Activity Score)Standard Deviation 18.2
PlaceboChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 12-9.0 AAS (Angioedema Activity Score)Standard Deviation 22.8
PlaceboChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 20-16.9 AAS (Angioedema Activity Score)Standard Deviation 21
PlaceboChange of Angioedema Activity Score (AAS) Total Week Sum Scores: Unadjusted Analysis and ANCOVA (Observed Cases With Imputation)Diary week 28-10.8 AAS (Angioedema Activity Score)Standard Deviation 21.3
Secondary

Change of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)

change in Dermatology Quality of Life Index scores The DLQI is a ten item general dermatology disability index designed to assess health-related quality of life in adult participants with skin diseases such as eczema, psoriasis, acne and viral worts. It is a self-administered questionnaire which includes domains of daily activity, leisure, personal relationships, symptoms and feelings, treatment and school/work activities. Each domain has 4 response categories ranging from 0 (not at all) to 3 (very much). Not relevant is a valid score also and is scored as 0. The DLQI total score is a sum of all 10 responses. Scores range from 0 to 30 with higher scores indicating greater health-related quality of life impairment.

Time frame: baseline to week 28; and follow-up to week 36

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12-10.1 DLQI ScoreStandard Deviation 7.5
OmalizumabChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28-10.5 DLQI ScoreStandard Deviation 8.3
OmalizumabChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20-9.5 DLQI ScoreStandard Deviation 8.4
OmalizumabChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36-6.8 DLQI ScoreStandard Deviation 8.6
OmalizumabChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4-8.3 DLQI ScoreStandard Deviation 7.3
PlaceboChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36-5.4 DLQI ScoreStandard Deviation 8.3
PlaceboChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4-2.4 DLQI ScoreStandard Deviation 6.9
PlaceboChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12-3.9 DLQI ScoreStandard Deviation 7.6
PlaceboChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20-5.1 DLQI ScoreStandard Deviation 8.3
PlaceboChange of DLQI Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28-5.6 DLQI ScoreStandard Deviation 8
Secondary

Change of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)

The UAS7 is the sum of urticaria activity scores over a seven day period. The possible range of the weekly UAS7 score is 0-42. 0 means complete response and a better outcome and 42 means no response and a worse outcome. Complete UAS7 response is defined as UAS7=0. The UAS7 is the sum of the Hive Severity Score over seven days (HSS7) and the Itch Severity Score over seven days (ISS7) . The Hive Severity Score has a scale of 0 (none) to 3 (intense/severe). Complete hives response is defined as HSS7=0. The Itch Severity Score has a scale of 0 (None) to 3 (Severe (difficult to tolerate)). Complete itch response is defined as ISS7=0

Time frame: baseline to week 28; and then follow-up to week 36

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12-16.4 scores on a scaleStandard Deviation 14.3
OmalizumabChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28-16.8 scores on a scaleStandard Deviation 14.8
OmalizumabChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20-15.0 scores on a scaleStandard Deviation 15
OmalizumabChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36-8.3 scores on a scaleStandard Deviation 15.3
OmalizumabChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4-12.6 scores on a scaleStandard Deviation 13.3
PlaceboChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)follow-up, week 36-6.2 scores on a scaleStandard Deviation 13.3
PlaceboChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 4-3.0 scores on a scaleStandard Deviation 9.4
PlaceboChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 12-4.4 scores on a scaleStandard Deviation 13.3
PlaceboChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 20-7.2 scores on a scaleStandard Deviation 14.7
PlaceboChange of UAS7 Total Scores From Baseline to Week 28: Unadjusted Analysis and ANCOVA (Observed Cases)week 28-6.5 scores on a scaleStandard Deviation 13.4
Secondary

Days of Rescue Medication During the Follow-up Period

data points per group

Time frame: weeks 33 to 36

Population: safety set

ArmMeasureGroupValue (NUMBER)
OmalizumabDays of Rescue Medication During the Follow-up PeriodAny rescue medication165 days
OmalizumabDays of Rescue Medication During the Follow-up PeriodAny nsH1 - antihistamine rescue medication158 days
OmalizumabDays of Rescue Medication During the Follow-up PeriodAny clemastine rescue medication15 days
OmalizumabDays of Rescue Medication During the Follow-up PeriodAny corticosteroid rescue medication0 days
PlaceboDays of Rescue Medication During the Follow-up PeriodAny corticosteroid rescue medication17 days
PlaceboDays of Rescue Medication During the Follow-up PeriodAny rescue medication118 days
PlaceboDays of Rescue Medication During the Follow-up PeriodAny clemastine rescue medication19 days
PlaceboDays of Rescue Medication During the Follow-up PeriodAny nsH1 - antihistamine rescue medication85 days
Secondary

Days of Rescue Medication During the Treatment Period

data points per group

Time frame: baseline to 28 weeks

Population: safety set

ArmMeasureGroupValue (NUMBER)
OmalizumabDays of Rescue Medication During the Treatment PeriodAny rescue medication507 days
OmalizumabDays of Rescue Medication During the Treatment PeriodAny nsH1 - antihistamine rescue medication403 days
OmalizumabDays of Rescue Medication During the Treatment PeriodAny clemastine rescue medication92 days
OmalizumabDays of Rescue Medication During the Treatment PeriodAny corticosteroid rescue medication25 days
PlaceboDays of Rescue Medication During the Treatment PeriodAny corticosteroid rescue medication113 days
PlaceboDays of Rescue Medication During the Treatment PeriodAny rescue medication787 days
PlaceboDays of Rescue Medication During the Treatment PeriodAny clemastine rescue medication236 days
PlaceboDays of Rescue Medication During the Treatment PeriodAny nsH1 - antihistamine rescue medication524 days
Secondary

Diameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)

data points per group

Time frame: weeks 33 to 36

Population: full analysis set

ArmMeasureGroupValue (NUMBER)
OmalizumabDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter <10cm92 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter 10-20cm28 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter >20cm8 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)unknown17 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)unknown18 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter <10cm90 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter >20cm19 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Follow-up(Weeks 33 to 36)Acute swelling episode, Diameter 10-20cm58 Number of episodes
Secondary

Diameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)

data points per group

Time frame: weeks 25 to 28

Population: actual patient numbers

ArmMeasureGroupValue (NUMBER)
OmalizumabDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter <10cm31 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter 10-20cm0 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter 20cm0 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)unknown0 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)unknown12 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter <10cm76 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter 20cm24 Number of episodes
PlaceboDiameter: Acute Swelling Episodes at End of Treatment (Weeks 25 to 28)Acute swelling episode, Diameter 10-20cm94 Number of episodes
Secondary

Diameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)

data points per group

Time frame: week -2 to -1

Population: full analysis set

ArmMeasureGroupValue (NUMBER)
OmalizumabDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter <10cm146 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter >20cm19 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter 10-20cm54 Number of episodes
OmalizumabDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)unknown12 Number of episodes
PlaceboDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)unknown15 Number of episodes
PlaceboDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter <10cm165 Number of episodes
PlaceboDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter 10-20cm99 Number of episodes
PlaceboDiameter: Acute Swelling Episodes Within the Screening Period (Week -2 to -1)Acute swelling episode, Diameter >20cm46 Number of episodes
Secondary

Mean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes

Time frame: Baseline to week 28

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes1st to 2nd episode20 daysStandard Deviation 41.63
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes2nd to 3rd episode11.0 daysStandard Deviation 19.52
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes3rd to 4th episode26.4 daysStandard Deviation 50.73
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes4th to 5th episode14.9 daysStandard Deviation 23.87
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes5th to 6th episode14.2 daysStandard Deviation 20.54
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes6th to 7th episode11.2 daysStandard Deviation 22.11
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes7th to 8th episode18.1 daysStandard Deviation 29.41
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes8th to 9th episode10.7 daysStandard Deviation 15.05
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes9th to 10th episode11.4 daysStandard Deviation 20.16
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes10th to 11th episode11.5 daysStandard Deviation 13.02
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes11th to 12th episode8.9 daysStandard Deviation 9.42
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes12th to 13th episode6.0 daysStandard Deviation 4.47
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes13th to 14th episode3.6 daysStandard Deviation 3.02
OmalizumabMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes14th to 15th episode6.9 daysStandard Deviation 9.96
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes11th to 12th episode9.4 daysStandard Deviation 13.89
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes1st to 2nd episode7.8 daysStandard Deviation 14.29
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes8th to 9th episode8.0 daysStandard Deviation 12.26
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes2nd to 3rd episode7.2 daysStandard Deviation 10.16
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes13th to 14th episode7.3 daysStandard Deviation 4.56
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes3rd to 4th episode8.3 daysStandard Deviation 13.24
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes9th to 10th episode8.7 daysStandard Deviation 12.26
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes4th to 5th episode8.6 daysStandard Deviation 20.44
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes12th to 13th episode4.3 daysStandard Deviation 4.43
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes5th to 6th episode13.6 daysStandard Deviation 30.09
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes10th to 11th episode8.5 daysStandard Deviation 10.41
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes6th to 7th episode7.5 daysStandard Deviation 11.32
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes14th to 15th episode10.1 daysStandard Deviation 11.86
PlaceboMean Time Interval Between Successive Angioedema Episodes of the First 15 Episodes7th to 8th episode9.1 daysStandard Deviation 17.58
Secondary

Number of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)

Time frame: Baseline, week 28; and the follow-up period (weeks 29-36)

Population: full analysis set

ArmMeasureGroupValue (MEAN)Dispersion
OmalizumabNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Screening (Week -2 to -1)5.2 daysStandard Deviation 3.9
OmalizumabNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Treatment (Week 1 to 28)14.6 daysStandard Deviation 19.5
OmalizumabNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Follow-up (Week 29 to 36)5.8 daysStandard Deviation 9.1
PlaceboNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Screening (Week -2 to -1)6.8 daysStandard Deviation 4.3
PlaceboNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Treatment (Week 1 to 28)49.5 daysStandard Deviation 50.8
PlaceboNumber of Angioedema Burdened Days by Study Phase (Observed Cases With Imputation)Follow-up (Week 29 to 36)12.8 daysStandard Deviation 16.2
Secondary

Rescue Medication During the Treatment Period

Time frame: baseline to 28 weeks

Population: safety set

ArmMeasureGroupValue (NUMBER)
OmalizumabRescue Medication During the Treatment PeriodAny clemastine rescue medication12 participants
OmalizumabRescue Medication During the Treatment PeriodBetamethasone2 participants
OmalizumabRescue Medication During the Treatment PeriodAny nsH1 - antihistamine rescue medication19 participants
OmalizumabRescue Medication During the Treatment PeriodPrednisolone3 participants
OmalizumabRescue Medication During the Treatment PeriodAny corticosteroid rescue medication5 participants
OmalizumabRescue Medication During the Treatment PeriodPrednisolone succinate2 participants
OmalizumabRescue Medication During the Treatment PeriodAny rescue medication25 participants
PlaceboRescue Medication During the Treatment PeriodPrednisolone succinate0 participants
PlaceboRescue Medication During the Treatment PeriodAny rescue medication35 participants
PlaceboRescue Medication During the Treatment PeriodAny nsH1 - antihistamine rescue medication27 participants
PlaceboRescue Medication During the Treatment PeriodAny clemastine rescue medication26 participants
PlaceboRescue Medication During the Treatment PeriodAny corticosteroid rescue medication13 participants
PlaceboRescue Medication During the Treatment PeriodBetamethasone12 participants
PlaceboRescue Medication During the Treatment PeriodPrednisolone3 participants
Secondary

Shortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)

data points per group

Time frame: weeks 33 to 36

Population: full analysis set

ArmMeasureGroupValue (NUMBER)
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: No127 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Severely0 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Slightly14 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Unknown3 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Moderately1 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Unknown4 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Moderately3 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: No172 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Slightly5 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Follow-up Period (Weeks 33 to 36)Shortness of breath: Severely1 Number of episodes
Secondary

Shortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)

data points per group

Time frame: weeks 25 to 28

Population: full analysis set

ArmMeasureGroupValue (NUMBER)
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Slightly3 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Severely0 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Moderately0 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Unknown0 Number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: No28 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Unknown1 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: No195 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Slightly5 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Moderately5 Number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes at End of Treatment Period (Weeks 25 to 28)Shortness of breath: Severely0 Number of episodes
Secondary

Shortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)

data points per group

Time frame: weeks -2 to -1

Population: full analysis set

ArmMeasureGroupValue (NUMBER)
OmalizumabShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Slightly13 number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Severely1 number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Moderately7 number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Unknown7 number of episodes
OmalizumabShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: No203 number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Unknown4 number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: No264 number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Slightly25 number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Moderately25 number of episodes
PlaceboShortness of Breath: Acute Swelling Episodes Within the Screening Period (Weeks -2 to -1)Shortness of breath: Severely7 number of episodes

Source: ClinicalTrials.gov · Data processed: Mar 13, 2026