Study of Efficacy and Safety of Xolair® (Omalizumab) in Chinese Patients With Chronic Spontaneous Urticaria

NCT ID: NCT03328897

Last Updated: 2020-11-04

Study Results

Results available

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Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

PHASE3

Total Enrollment

418 participants

Study Classification

INTERVENTIONAL

Study Start Date

2017-04-26

Study Completion Date

2019-09-24

Brief Summary

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The purpose of this study was to demonstrate the efficacy and safety of omalizumab, compared with placebo, as an add-on to H1 antihistamines (H1AH) therapy in adult patients suffering from Chronic Spontaneous Urticaria (CSU) who remained symptomatic despite H1AH therapy.

Detailed Description

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This was a randomized, multicenteric, double-blinded, placebo-controlled, parallel-group study to evaluate the efficacy and safety of omalizumab as an add-on therapy for the treatment of patients of refractory CSU who remained symptomatic despite approved-dosed H1AH treatment.

The study consisted of three distinct epochs over 24 weeks: Screening epoch (Day -28 to Day -1), Randomized treatment epoch (Day 1 to Week 12) and Post-treatment follow-up epoch (Week 12 to Week 20). Patients were randomized into three treatment groups (omalizumab 300 mg s.c. omalizumab 150 mg s.c. and placebo) in a 2:2:1 ratio, stratified by latent tuberculosis (TB) status at Baseline (Yes/No).

On Day 1, eligible patients were randomly assigned to receive omalizumab (150 mg or 300 mg) or placebo by subcutaneous (s.c.) injection every 4 weeks (on Day 1, Week 4, and Week 8) during the 12-week double-blind randomized-treatment epoch. Patients visited the study center at 4-week intervals. Patients were instructed to stay on the same CSU H1AH treatment at stable dose that they were using during the pre-randomization period during the randomized treatment epoch. They were allowed to use diphenhydramine as rescue medication during all epochs. The last dose of the study drug during the randomized-treatment epoch was administered at Week 8 study visit, however, the last assessment was done at Week 12.

After the completion of the 12-week randomized-treatment epoch, all patients entered an 8-week post-treatment follow-up epoch.

Conditions

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Chronic Spontaneous Urticaria

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

QUADRUPLE

Participants Caregivers Investigators Outcome Assessors

Study Groups

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Omalizumab 300mg

patients received a dose of omalizumab 300 mg which consisted of two injections of omalizumab 150 mg vials every 4 weeks (Day 1, Week 4 and Week 8)

Group Type EXPERIMENTAL

Omalizumab

Intervention Type DRUG

injection of 150mg or 300 mg

Omalizumab 150mg

patients received a dose of omalizumab 150 mg which consisted of one injection of omalizumab 150 mg vial and one injection of placebo 150 mg vial every 4 weeks (Day 1, Week 4 and Week 8)

Group Type EXPERIMENTAL

Omalizumab

Intervention Type DRUG

injection of 150mg or 300 mg

Placebo

patients received placebo which consisted of two injections of placebo 150 mg vials every 4 weeks (Day 1, Week 4 and Week 8)

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type DRUG

Injection of placebo

Interventions

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Omalizumab

injection of 150mg or 300 mg

Intervention Type DRUG

Placebo

Injection of placebo

Intervention Type DRUG

Other Intervention Names

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IGE025

Eligibility Criteria

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Inclusion Criteria

* Symptomatic CSU patients with CSU diagnosis for at least 6 months.
* Patients must have been on an approved dose of an H1AH for CSU for at least the 3 consecutive days immediately prior to the Day -14 screening visit
* Patients must have documented current use on the day of the initial screening visit

Exclusion Criteria

* Clearly defined underlying etiology for chronic urticarias other than CSU (main manifestation being physical urticaria)
* Other skin disease associated with itch Urticarial vasculitis, urticaria pigmentosa, erythema multiforme, mastocytosis, hereditary or acquired angioedema, lymphoma, leukemia, or generalized cancer
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Novartis Pharmaceuticals

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Novartis Pharmaceuticals

Role: STUDY_DIRECTOR

Novartis Pharmaceuticals

Locations

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Novartis Investigative Site

Beijing, Beijing Municipality, China

Site Status

Novartis Investigative Site

Fuzhou, Fujian, China

Site Status

Novartis Investigative Site

Guangzhou, Guangdong, China

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Novartis Investigative Site

Nanning, Guangxi, China

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Harbin, Heilongjiang, China

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Wuhan, Hubei, China

Site Status

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Wuhan, Hubei, China

Site Status

Novartis Investigative Site

Changsha, Hunan, China

Site Status

Novartis Investigative Site

Nanjing, Jiangsu, China

Site Status

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Suzhou, Jiangsu, China

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Novartis Investigative Site

Wuxi, Jiangsu, China

Site Status

Novartis Investigative Site

Shenyang, Liaoning, China

Site Status

Novartis Investigative Site

Chengdu, Sichuan, China

Site Status

Novartis Investigative Site

Ürümqi, Xinjiang, China

Site Status

Novartis Investigative Site

Hangzhou, Zhejiang, China

Site Status

Novartis Investigative Site

Hangzhou, Zhejiang, China

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Novartis Investigative Site

Hangzhou, Zhejiang, China

Site Status

Novartis Investigative Site

Beijing, , China

Site Status

Novartis Investigative Site

Beijing, , China

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Novartis Investigative Site

Beijing, , China

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Novartis Investigative Site

Chongqing, , China

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Novartis Investigative Site

Chongqing, , China

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Novartis Investigative Site

Guangzhou, , China

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Novartis Investigative Site

Nanjing, , China

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Novartis Investigative Site

Shanghai, , China

Site Status

Novartis Investigative Site

Shanghai, , China

Site Status

Novartis Investigative Site

Shanghai, , China

Site Status

Countries

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China

References

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Bi XD, Lu BZ, Pan XX, Liu S, Wang JY. Adjunct therapy with probiotics for chronic urticaria in children: randomised placebo-controlled trial. Allergy Asthma Clin Immunol. 2021 Apr 17;17(1):39. doi: 10.1186/s13223-021-00544-3.

Reference Type DERIVED
PMID: 33865434 (View on PubMed)

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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CIGE025E2305

Identifier Type: -

Identifier Source: org_study_id