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Study of Efficacy and Safety of Omalizumab in Refractory Chronic Spontaneous Urticaria Patients

A Multicenter, Randomized, Double-blind, Placebo-controlled Phase III Study to Evaluate the Efficacy and Safety of Omalizumab in Patients With Chronic Spontaneous Urticaria (CSU) Who Remain Symptomatic Despite H1 Antihistamine Therapy

Status
Unknown
Phases
Phase 3
Study type
Interventional
Source
JPRN
Registry ID
JPRN-jRCT2080222712
Enrollment
108
Registered
2015-01-07
Start date
2015-01-07
Completion date
Unknown
Last updated
2026-06-29

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

Conditions

Chronic Spontaneous Urticaria

Interventions

Sponsors

Novartis Pharma K.K.
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: * Diagnosis of chronic spontaneous urticaria refractory to H1 antihistamine at the time of randomization * Chronic spontaneous urticaria diagnosis for 6 months

Exclusion criteria

Exclusion criteria: * Weight less than 20 kg * Clearly defined underlying etiology for chronic urticaria other than chronic spontaneous urticaria * Evidence of parasitic infection * Any other skin diseases than chronic spontaneous urticaria with chronic itching * Previous treatment with omalizumab * Contraindications to diphenhydramine * History of anaphylactic shock * History or current diagnosis of ECG abnormalities indicating significant risk of safety for patients participating in the study * History of hypersensitivity to omalizumab or to drugs of similar chemical classes * Pregnant or nursing (lactating) women Other protocol defined inclusion/exclusion may apply

Design outcomes

Primary

MeasureTime frame
Change From Baseline to Week 12 in the Weekly Itch Severity Score [Time Frame: Baseline to Week 12] The weekly itch severity score is the sum of the daily itch severity scores over 7 days and ranges from 0 to 21. The daily itch severity score is the average of the morning and evening scores on a scale of 0 (none) to 3 (severe). The Baseline weekly itch severity score is the sum of the daily itch severity scores over the 7 days prior to the first treatment. A higher itch severity score indicates more severe itching. A negative change score indicates improvement.

Secondary

MeasureTime frame
Change From Baseline to Week 12 in the Urticaria Activity Score Over 7 Days (UAS7) [Time Frame: Baseline to Week 12] The UAS7 is the sum of the daily urticarial activity scores over 7 days and ranges from 0 to 42. The daily urticarial activity score is the average of the morning and evening urticarial activity scores and ranges from 0 to 6. The urticarial activity score is the sum of ratings on a scale of 0 to 3 (0=none to 3=intense/severe) for (1) the number of wheals (hives) and (2) itch intensity over the previous 12 hours, ranges from 0 to 6, and is measured twice daily (morning and evening). The Baseline score is the sum of the daily urticarial activity scores over the 7 days prior to the first treatment. A higher urticarial activity score indicates more urticaria activity. A negative change score indicates improvement. Change From Baseline to Week 12 in the Weekly Number of Hives Score [Time Frame: Baseline to Week 12] The weekly hives score is the sum of the daily hives scores over 7days and ranges from 0 to 21. The number of hives is measured twice daily (morning and evening) on a scale of 0 (none) to 3 (> 12 hives per 12 hours). The daily hives score is the average of the morning and evening scores. The Baseline score is the sum of the daily hives scores over the 7 days prior to the first treatment. A higher score indicates more hives. A negative change score indicates improvement.

Outcome results

None listed

Source: JPRN (via WHO ICTRP) · Data processed: Jul 3, 2026