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Dose-finding Study of QGE031 as add-on Therapy to Evaluate Efficacy and Safety in Patients With CSU

A Multi-center, Randomized, Double-blind, Placebo, and Active-controlled Phase 2b Dose-finding Study of QGE031 as add-on Therapy to Investigate the Efficacy and Safety in Patients With Chronic Spontaneous Urticaria (CSU)

Status
Completed
Phases
Phase 2
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT02477332
Enrollment
382
Registered
2015-06-22
Start date
2015-07-15
Completion date
2017-06-12
Last updated
2021-01-05

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

Conditions

Chronic Spontaneous Urticaria

Keywords

QGE031, ligelizumab, omalizumab, chronic, spontaneous, urticaria, adults, CSU

Brief summary

This is a placebo and active-controlled phase 2b dose-finding study to evaluate efficacy and safety of QGE031 monthly subcutaneous injections as add-on therapy in patients with Chronic Spontaneous Urticaria.

Interventions

BIOLOGICALQGE031
BIOLOGICALOmalizumab
OTHERPlacebo

Sponsors

Novartis Pharmaceuticals
Lead SponsorINDUSTRY

Study design

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

Eligibility

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

Inclusion criteria

* Diagnosis of chronic spontaneous urticaria for at least 6 months * Diagnosis of chronic spontaneous urticaria refractory to standard of care at time of randomization

Exclusion criteria

* Clearly defined underlying etiology for chronic urticaria other than chronic spontaneous urticaria * Evidence of parasitic infection * Any other skin disease with chronic itching * Previous treatment with omalizumab or QGE031 * Contraindications to or hypersensitivity to fexofenadine, loratadine, cetirizine, or epinephrine * History of anaphylaxis * History or current diagnosis of ECG abnormalities indicating significant risk of safety for patients participating in the study * History of hypersensitivity to any of the study drugs or its components of similar chemical classes * Pregnant or nursing (lactating) women Other protocol defined inclusion/

Design outcomes

Primary

MeasureTime frameDescription
Percentage of Participants With Complete Hives Response (HSS7=0)Week 12The primary objective was to establish the dose-response relationship of ligelizumab (24, 72 and 240 mg every 4 weeks) with respect to achievement of complete hives response (HSS7=0) at Week 12 and select an appropriate dose (or range of doses) which is likely to be superior to omalizumab at the highest approved dose (300 mg every 4 weeks). Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the preceding 7 days, with a possible range of 0 - 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours) To confirm an overall dose-response signal based on MCP-Mod, and to estimate the minimal ligelizumab dose that shows a relevant superior effect over omalizumab, based on the selected dose response model, the lowest ligelizumab dose that provides a response rate 15% higher than the response of omalizumab 300 mg.

Secondary

MeasureTime frameDescription
Complete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 DaysWeek 12Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete hives response defined as HSS7 = 0. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)
HSS7=0 Response: at Week 20 Measured Over 7 DaysWeek 20Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete hives response defined as HSS7 = 0. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)
Change From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 DaysWeek 20Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)
Change From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 DaysWeek 12Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)
Change From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 DaysWeek 20Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)
Change From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 DaysWeek 12Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)
Change From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 DaysWeek 20UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42.
Complete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 DaysWeek 12UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42. Complete urticaria activity response is defined as UAS7 = 0.
UAS7=0 Response: at Week 20 Measured Over 7 DaysWeek 20UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42. Complete urticaria activity response is defined as UAS7 = 0.
Complete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 DaysWeek 12Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete itch response defined as ISS7 = 0. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)
ISS7=0 Response: at Week 20 Measured Over 7 DaysWeek 20Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete itch response defined as ISS7 = 0. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)
Change From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 DaysWeek 12UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42.

Countries

Australia, Canada, Germany, Greece, Japan, Russia, Spain, Taiwan, United Kingdom, United States

Participant flow

Recruitment details

574 subjects screened; 382 subjects randomized; 338 (88.5%) subjects completed treatment epoch; 349 (91.4%) subjects entered follow-up phase and 320 (83.8%) completed the follow-up epoch

Participants by arm

ArmCount
QGE031 24 mg s.c. q4w
ligelizumab 24 mg injection subcutaneous every 4 weeks
43
QGE031 72 mg s.c. q4w
ligelizumab 72 mg injection subcutaneous every 4 weeks
84
QGE031 240 mg s.c. q4w
ligelizumab 240 mg injection subcutaneous every 4 weeks
85
Omalizumab 300 mg s.c. q4w
omalizumab 300 mg injection subcutaneous every 4 weeks
85
Placebo s.c. q4w
placebo injection subcutaneous every 4 weeks
43
QGE031 120 mg s.c. s.d.
ligelizumab 120 mg injection subcutaneous single dose
42
Total382

Withdrawals & dropouts

PeriodReasonFG000FG001FG002FG003FG004FG005
Overall StudyAdverse Event011212
Overall StudyLack of Efficacy121211
Overall StudyLost to Follow-up002000
Overall StudyNon-compliance with study treatment012000
Overall StudyPhysician Decision001301
Overall StudyPregnancy000100
Overall StudyProtocol Violation203311
Overall StudyTechnical problems001000
Overall StudyWithdrawal by Subject031210

Baseline characteristics

CharacteristicQGE031 72 mg s.c. q4wQGE031 240 mg s.c. q4wOmalizumab 300 mg s.c. q4wPlacebo s.c. q4wQGE031 120 mg s.c. s.d.QGE031 24 mg s.c. q4wTotal
Age, Categorical
<=18 years
0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants0 Participants
Age, Categorical
>=65 years
7 Participants0 Participants4 Participants2 Participants5 Participants4 Participants22 Participants
Age, Categorical
Between 18 and 65 years
77 Participants85 Participants81 Participants41 Participants37 Participants39 Participants360 Participants
Age, Continuous44.3 years
STANDARD_DEVIATION 12.38
42.9 years
STANDARD_DEVIATION 10.51
41.8 years
STANDARD_DEVIATION 13.06
45.4 years
STANDARD_DEVIATION 11.22
42.4 years
STANDARD_DEVIATION 14.54
44.1 years
STANDARD_DEVIATION 14.36
43.3 years
STANDARD_DEVIATION 12.49
Sex: Female, Male
Female
61 Participants67 Participants66 Participants31 Participants30 Participants31 Participants286 Participants
Sex: Female, Male
Male
23 Participants18 Participants19 Participants12 Participants12 Participants12 Participants96 Participants

Adverse events

Event typeEG000
affected / at risk
EG001
affected / at risk
EG002
affected / at risk
EG003
affected / at risk
EG004
affected / at risk
EG005
affected / at risk
deaths
Total, all-cause mortality
0 / 430 / 840 / 850 / 850 / 430 / 42
other
Total, other adverse events
24 / 4345 / 8446 / 8544 / 8530 / 4328 / 42
serious
Total, serious adverse events
3 / 432 / 842 / 853 / 854 / 434 / 42

Outcome results

Primary

Percentage of Participants With Complete Hives Response (HSS7=0)

The primary objective was to establish the dose-response relationship of ligelizumab (24, 72 and 240 mg every 4 weeks) with respect to achievement of complete hives response (HSS7=0) at Week 12 and select an appropriate dose (or range of doses) which is likely to be superior to omalizumab at the highest approved dose (300 mg every 4 weeks). Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the preceding 7 days, with a possible range of 0 - 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours) To confirm an overall dose-response signal based on MCP-Mod, and to estimate the minimal ligelizumab dose that shows a relevant superior effect over omalizumab, based on the selected dose response model, the lowest ligelizumab dose that provides a response rate 15% higher than the response of omalizumab 300 mg.

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wPercentage of Participants With Complete Hives Response (HSS7=0)30.2 Percentage of participants
QGE031 72 mg s.c. q4wPercentage of Participants With Complete Hives Response (HSS7=0)51.2 Percentage of participants
QGE031 240 mg s.c. q4wPercentage of Participants With Complete Hives Response (HSS7=0)42.4 Percentage of participants
Omalizumab 300 mg s.c. q4wPercentage of Participants With Complete Hives Response (HSS7=0)25.9 Percentage of participants
Placebo s.c. q4wPercentage of Participants With Complete Hives Response (HSS7=0)0 Percentage of participants
QGE031 120 mg s.c. s.d.Percentage of Participants With Complete Hives Response (HSS7=0)19.0 Percentage of participants
p-value: <0.0560% CI: [27.5, 42.5]Regression, Logistic
Secondary

Change From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days

Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days-9.75 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days-15.50 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days-13.50 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days-11.00 Score on a scale
Placebo s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 12 Measured Over 7 Days-6.50 Score on a scale
Secondary

Change From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days

Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days-9.00 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days-16.50 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days-14.00 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days-11.00 Score on a scale
Placebo s.c. q4wChange From Baseline in Hives Severity Score (HSS7) at Week 20 Measured Over 7 Days-7.50 Score on a scale
Secondary

Change From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days

Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days-7.50 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days-9.50 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days-9.00 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days-8.00 Score on a scale
Placebo s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 12 Measured Over 7 Days-5.50 Score on a scale
Secondary

Change From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days

Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days-7.00 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days-10.25 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days-10.00 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days-8.83 Score on a scale
Placebo s.c. q4wChange From Baseline in Itch Severity Score (ISS7) at Week 20 Measured Over 7 Days-5.00 Score on a scale
Secondary

Change From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days

UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42.

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days-19.50 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days-26.50 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days-21.75 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days-19.00 Score on a scale
Placebo s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 12 Measured Over 7 Days-12.00 Score on a scale
Secondary

Change From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days

UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42.

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (MEDIAN)
QGE031 24 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days-16.00 Score on a scale
QGE031 72 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days-27.00 Score on a scale
QGE031 240 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days-22.92 Score on a scale
Omalizumab 300 mg s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days-18.50 Score on a scale
Placebo s.c. q4wChange From Baseline in Urticaria Activity Score (UAS7) at Week 20 Measured Over 7 Days-13.00 Score on a scale
Secondary

Complete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days

Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete hives response defined as HSS7 = 0. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wComplete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days13 Particpants
QGE031 72 mg s.c. q4wComplete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days43 Particpants
QGE031 240 mg s.c. q4wComplete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days36 Particpants
Omalizumab 300 mg s.c. q4wComplete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days22 Particpants
Placebo s.c. q4wComplete Hives Response (HSS7=0) Rate at Week 12 Measured Over 7 Days0 Particpants
Secondary

Complete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days

Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete itch response defined as ISS7 = 0. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wComplete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days17 participants
QGE031 72 mg s.c. q4wComplete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days40 participants
QGE031 240 mg s.c. q4wComplete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days36 participants
Omalizumab 300 mg s.c. q4wComplete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days25 participants
Placebo s.c. q4wComplete Itch Response (ISS7=0) Rate at Week 12 Measured Over 7 Days2 participants
Secondary

Complete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days

UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42. Complete urticaria activity response is defined as UAS7 = 0.

Time frame: Week 12

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wComplete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days13 Participants
QGE031 72 mg s.c. q4wComplete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days37 Participants
QGE031 240 mg s.c. q4wComplete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days34 Participants
Omalizumab 300 mg s.c. q4wComplete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days22 Participants
Placebo s.c. q4wComplete Urticaria Activity Score Response (UAS7=0) Rate at Week 12 Measured Over 7 Days0 Participants
Secondary

HSS7=0 Response: at Week 20 Measured Over 7 Days

Hives Severity Score (HSS) is on a scale of 0 to 3. A weekly score (HSS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete hives response defined as HSS7 = 0. Hives Severity Score scale: 0 - None 1. \- Mild (1-6 hives/12 hours) 2. \- Moderate (7-12 hives/12 hours) 3. \- Severe (\>12 hives/12 hours)

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wHSS7=0 Response: at Week 20 Measured Over 7 Days11 Participants
QGE031 72 mg s.c. q4wHSS7=0 Response: at Week 20 Measured Over 7 Days43 Participants
QGE031 240 mg s.c. q4wHSS7=0 Response: at Week 20 Measured Over 7 Days38 Participants
Omalizumab 300 mg s.c. q4wHSS7=0 Response: at Week 20 Measured Over 7 Days29 Participants
Placebo s.c. q4wHSS7=0 Response: at Week 20 Measured Over 7 Days4 Participants
Secondary

ISS7=0 Response: at Week 20 Measured Over 7 Days

Itch Severity Score (ISS) is on a scale of 0 to 3. A weekly score (ISS7) is derived by adding up the average daily scores of the 7 days preceding the visit. The possible range of the weekly score is therefore 0 to 21. Complete itch response defined as ISS7 = 0. Itch Severity Score scale: 0 - None 1. \- Mild (minimal awareness, easily tolerated) 2. \- Moderate (definite awareness, bothersome but tolerable) 3. \- Severe (difficult to tolerate)

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wISS7=0 Response: at Week 20 Measured Over 7 Days8 participants
QGE031 72 mg s.c. q4wISS7=0 Response: at Week 20 Measured Over 7 Days35 participants
QGE031 240 mg s.c. q4wISS7=0 Response: at Week 20 Measured Over 7 Days36 participants
Omalizumab 300 mg s.c. q4wISS7=0 Response: at Week 20 Measured Over 7 Days28 participants
Placebo s.c. q4wISS7=0 Response: at Week 20 Measured Over 7 Days3 participants
Secondary

UAS7=0 Response: at Week 20 Measured Over 7 Days

UAS7 is the sum of the HSS7 and the ISS7 scores. The possible range of the weekly UAS7 score is 0 to 42. Complete urticaria activity response is defined as UAS7 = 0.

Time frame: Week 20

Population: Full analysis set (FAS) included all randomized patients, removing misrandomized patients provided that study drug was not administered. As per protocol and SAP, for the efficacy endpoints at Week 12 or Week 20, only the QGE031 24, 72 \& 240 mg, omalizumab 300 mg and placebo arms were analyzed for efficacy comparison between treatment groups.

ArmMeasureValue (NUMBER)
QGE031 24 mg s.c. q4wUAS7=0 Response: at Week 20 Measured Over 7 Days8 participants
QGE031 72 mg s.c. q4wUAS7=0 Response: at Week 20 Measured Over 7 Days33 participants
QGE031 240 mg s.c. q4wUAS7=0 Response: at Week 20 Measured Over 7 Days34 participants
Omalizumab 300 mg s.c. q4wUAS7=0 Response: at Week 20 Measured Over 7 Days26 participants
Placebo s.c. q4wUAS7=0 Response: at Week 20 Measured Over 7 Days2 participants

Source: ClinicalTrials.gov · Data processed: Feb 20, 2026