A Study of Omalizumab (Xolair) in Subjects With Moderate to Severe Persistent Asthma (EXTRA)
Condition: Asthma
MeSH terms: Asthma
Intervention: omalizumab (Xolair); placebo; corticosteroids; long-acting beta-agonists
Intervention description: Omalizumab (Xolair) was administered by subcutaneous (SC) injection every 2 or 4 weeks. Xolair was supplied as a sterile, white, preservative-free, lyophilized powder in single-use vials that were reconstituted with Sterile Water for Injection (SWFI), USP.; Placebo was administered by subcutaneous (SC) injection every 2 or 4 weeks. Placebo contained the same ingredients as the lyophilized formulation of Xolair,excluding omalizumab.; Minimum dose of 500 µg of fluticasone dry-powder inhaler or its equivalent ex-valve dose twice a day.; 50 µg salmeterol twice daily or 12 µg formoterol twice daily.
Intervention MeSH terms: Omalizumab
Phase: Phase 3
Study type: Interventional
Primary purpose: Treatment
Allocation: Randomized
Intervention model: Parallel Assignment
Masking: Double (Participant, Investigator)
Enrollment: 850.0
Sex: All
Minimum age: 12 Years
Maximum age: 75 Years
Healthy volunteers: No
Keywords: Persistent Asthma; EXTRA; Xolair; Difficult Breathing

Summary:

      This is a multicenter, randomized, double-blind, placebo-controlled study of the efficacy,
      safety, and tolerability of subcutaneously administered Xolair as add-on therapy for the
      treatment of subjects aged 12-75 years old diagnosed with moderate to severe asthma who are
      inadequately controlled with high-dose inhaled corticosteroids (ICS)+ long-acting
      beta-agonists (LABA) with or without additional controller therapy.
    

Eligibility criteria:

        Inclusion Criteria:

          -  Signed Informed Consent Form and an informed assent, if applicable

          -  Be between the ages of 12 to 75 years

          -  Have had a history of moderate to severe asthma for at least one year prior to
             screening

          -  Have had treatment with a stable regimen of of salmeterol 50 µg twice a day (BID) or
             formoterol 12 µg BID for at least 8 weeks prior to screening

          -  Have had treatment with a stable regimen of high-dose inhaled corticosteroids (ICS)
             for at least 8 weeks prior to screening

          -  Have inadequately controlled asthma

          -  Have had at least one asthma exacerbation requiring systemic corticosteroid rescue in
             the 12 months prior to the screening visit while receiving treatment with high-dose
             ICS

          -  Have less than 10 pack-years smoking history

          -  Have a positive skin test for or a positive, in vitro response to one relevant
             perennial aeroallergen documented within the 12 months prior to screening

          -  If a subject has not had a positive skin test or in vitro reactivity in the 12 months
             prior to screening, the subject must demonstrate a positive response to at least one
             relevant perennial aeroallergen in a skin or in vitro test prior to randomization

          -  Female subjects of childbearing potential must use an effective method of
             contraception from screening through their duration of participation in the study

          -  For the collection of additional blood samples for future research (optional), provide
             signed consent and an informed assent, if applicable.

        Exclusion Criteria:

          -  Have had an asthma exacerbation requiring intubation within 12 months prior to
             screening

          -  Have active lung disease other than asthma

          -  Have had an asthma exacerbation requiring treatment with the addition of systemic
             (oral or intravenous) corticosteroids or an increase in systemic corticosteroids
             within 30 days prior to screening

          -  Require chronic immunosuppressive therapy including cyclosporine, methotrexate, etc.

          -  Have significant medical illness other than asthma

          -  Have taken methotrexate, gold salts, cyclosporine, or macrolide antibiotics, within 3
             months prior to screening

          -  Have taken other investigational drugs within 30 days prior to screening

          -  Have been treated with Xolair within the 12 months prior to screening

          -  Have a history of drug or alcohol abuse that, in the judgment of the investigator, may
             put the subject at risk for being unable to participate fully in the study for the
             duration of the study

          -  Have elevated serum IgE levels for reasons other than allergy

          -  Are pregnant or lactating