An Extension Study of Omalizumab in Participants With Chronic Rhinosinusitis With Nasal Polyps

Purpose

The overall purpose of this study is to evaluate the safety, efficacy, and durability of response of omalizumab in an open-label setting in adult participants with chronic rhinosinusitis with nasal polyps who completed the double-blind, placebo-controlled, Phase III studies GA39688 (NCT03280550) or GA39855 (NCT03280537). Participants will be eligible for enrollment in the study at, or within 28 days after, the Week 24 visit of Studies GA39688/GA39855. After enrollment into this open-label extension (OLE) study, participants will receive 28 weeks of dosing of omalizumab before entering a 24-week off-treatment observation phase of the study. Baseline in this OLE study is defined as the last pre-treatment measurement prior to randomization in Studies GA39688/GA39855 (i.e., baseline of Studies GA39688/GA39855). The data that will be reported from baseline to Week 24 inclusive will come from Studies GA39688/GA39855.

Conditions

  • Nasal Polyps
  • Chronic Rhinosinusitis

Eligibility

Eligible Ages
Between 18 Years and 75 Years
Eligible Genders
All
Accepts Healthy Volunteers
No

Inclusion Criteria

  • Ability to comply with the study protocol, in the investigator's judgment - Participation in Study GA39688 or GA39855, including completion of endoscopy and other assessments at Week 24, without discontinuation of study drug - Completion of eDiary daily assessments for at least 4 out of 7 days in the week prior to the Week 24 visit of Study GA39688 or GA39855 - For women of childbearing potential: agreement to remain abstinent or use acceptable contraceptive methods during the treatment period and for 60 days after the last dose of study drug

Exclusion Criteria

  • Anaphylaxis/hypersensitivity related to study drug in Study GA39688 or GA39855 - Serious adverse events related to study drug in Study GA39688 or GA39855 that the investigator or Sponsor determines may jeopardize the patient's safety if he or she continues in the study - Uncontrolled epistaxis within Study GA39688 or GA39855 - Pregnant or breastfeeding, or intending to become pregnant during the study or within 60 days after the last dose of omalizumab - Any serious medical condition or abnormality in clinical laboratory tests that, in the investigator's judgment, precludes the patient's safe participation in and completion of the study

Study Design

Phase
Phase 3
Study Type
Interventional
Allocation
Non-Randomized
Intervention Model
Parallel Assignment
Primary Purpose
Treatment
Masking
Triple (Participant, Investigator, Outcomes Assessor)
Masking Description
Although this is an open-label study and all participants will be receiving omalizumab, in order to minimize bias in this study participants and the evaluating physicians will be blinded to treatment assignment of the previous studies (GA39688/GA39855) until all participants have either completed the study through the follow-up period (Week 76) or discontinued early from the study, the database is locked, and the study analyses are final.

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Cohort A: Study GA39688 Omalizumab 		Participants who received omalizumab once every 2 weeks (Q2W) or once every 4 weeks (Q4W) in Study GA39688 will continue to receive omalizumab at Week 24 at the same dosing schedule.
  • Drug: Omalizumab
    Omalizumab will be administered as a subcutaneous (SC) injection Q2W or Q4W.
    Other names:
    • Xolair
Experimental
Cohort A: Study GA39688 Placebo 		Participants who received placebo Q2W or Q4W in Study GA39688 will start receiving omalizumab Q2W or Q4W at Week 24 at the same dosing schedule.
  • Drug: Omalizumab
    Omalizumab will be administered as a subcutaneous (SC) injection Q2W or Q4W.
    Other names:
    • Xolair
  • Drug: Placebo
    Participants will not be receiving placebo in this OLE study. Participants who were randomized to the placebo arms for 24 weeks in studies GA39688/GA39855 and then enter this OLE study will receive omalizumab, but they will be placed in separate analysis cohorts.
Experimental
Cohort B: Study GA39855 Omalizumab 		Participants who received omalizumab Q2W or Q4W in Study GA39855 will continue to receive omalizumab at Week 24 at the same dosing schedule.
  • Drug: Omalizumab
    Omalizumab will be administered as a subcutaneous (SC) injection Q2W or Q4W.
    Other names:
    • Xolair
Experimental
Cohort B: Study GA39855 Placebo 		Participants who received placebo Q2W or Q4W in Study GA39855 will start receiving omalizumab Q2W or Q4W at Week 24 at the same dosing schedule.
  • Drug: Omalizumab
    Omalizumab will be administered as a subcutaneous (SC) injection Q2W or Q4W.
    Other names:
    • Xolair
  • Drug: Placebo
    Participants will not be receiving placebo in this OLE study. Participants who were randomized to the placebo arms for 24 weeks in studies GA39688/GA39855 and then enter this OLE study will receive omalizumab, but they will be placed in separate analysis cohorts.

More Details

Status
Completed
Sponsor
Hoffmann-La Roche

Study Contact