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ClinicalTrials.gov public records Last synced Sep 29, 2026, 9:35 AM EDT

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Showing 1–24 of 112 matching trials from the live ClinicalTrials.gov search.
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Filters: Intervention: omalizumab (Xolair) Clear all
Not listed Phase 4 Interventional

The Effect of Xolair on Inhibiting Leukotriene and Cytokine (IL-4 and IL-13) Release From Blood Basophils

NCT00673218
View directory record Official record
Conditions
Allergy
Interventions
Placebo, Xolair
Drug
Lead sponsor
Creighton University
Other
Eligibility
19 Years to 50 Years
Enrollment
25 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007 – 2012
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Jul 5, 2012 · Synced Sep 29, 2026, 9:35 AM EDT
Recruiting Phase 2 Interventional

Clinical Trial of Omalizumab for Allergen Sensitized and Exposed Individuals With COPD

NCT07059091
View directory record Official record
Conditions
Chronic Obstructive Pulmonary Disease (COPD), Allergies
Interventions
Omalizumab (Xolair®), Sodium Chloride (NaCl) 0.9 %
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
40 Years and older
Enrollment
334 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2026 – 2031
U.S. locations
23
States / cities
Birmingham, Alabama • Tucson, Arizona • San Francisco, California + 16 more
Source: ClinicalTrials.gov public record
Updated Sep 3, 2026 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 4 Interventional

The Effect of Xolair (Omalizumab) on Allergy Blood Cells

NCT00657891
View directory record Official record
Conditions
Asthma
Interventions
Omalizumab, Placebo
Drug
Lead sponsor
Creighton University
Other
Eligibility
16 Years to 50 Years
Enrollment
49 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2007
U.S. locations
1
States / cities
Omaha, Nebraska
Source: ClinicalTrials.gov public record
Updated Sep 30, 2013 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 4 Interventional Results available

Predicting the Clinical Response to Omalizumab With Anti-Immunoglobulin E (IgE) Ab Response or Syk Expression in Basophils

NCT02023151
View directory record Official record
Conditions
Allergic Asthma
Interventions
Omalizumab
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 75 Years
Enrollment
17 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2013 – 2016
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Dec 10, 2017 · Synced Sep 29, 2026, 9:35 AM EDT
Recruiting Phase 4 Interventional Accepts healthy volunteers

Effect of Omalizumab in the Skin of Food Allergy Patients

NCT06618963
View directory record Official record
Conditions
Food Allergy, Food Allergy in Children
Interventions
Omalizumab Injection
Drug
Lead sponsor
National Jewish Health
Other
Eligibility
1 Year to 55 Years
Enrollment
40 participants
Healthy volunteers
Accepts healthy volunteers
Timeline
2024 – 2026
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated May 1, 2025 · Synced Sep 29, 2026, 9:35 AM EDT
Terminated Not applicable Interventional

Soluble CD23 Expression in Asthma Patients Treated With OMA

NCT00226200
View directory record Official record
Conditions
Asthma
Interventions
Omalizumab
Drug
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 64 Years
Enrollment
80 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Nov 30, 2008 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 4 Interventional Results available

Treatment of Idiopathic Angioedema With Xolair as Add-on Therapy

NCT02966314
View directory record Official record
Conditions
Idiopathic Angioedema
Interventions
Omalizumab, Placebos
Drug
Lead sponsor
University of Wisconsin, Madison
Other
Eligibility
18 Years and older
Enrollment
12 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2020
U.S. locations
1
States / cities
Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 31, 2022 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 2 Interventional Results available

Study to Evaluate Tezepelumab in Adults With Chronic Spontaneous Urticaria

NCT04833855
View directory record Official record
Conditions
Chronic Spontaneous Urticaria
Interventions
Tezepelumab Dose 1, Tezepelumab Dose 2, Omalizumab, Placebo
Biological
Lead sponsor
Amgen
Industry
Eligibility
18 Years to 80 Years
Enrollment
183 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
25
States / cities
Birmingham, Alabama • Fountain Valley, California • Laguna Niguel, California + 21 more
Source: ClinicalTrials.gov public record
Updated Apr 8, 2025 · Synced Sep 29, 2026, 9:35 AM EDT
Withdrawn Phase 3 Interventional

Efficacy and Safety of Rituximab Combined With Omalizumab in Patients With Bullous Pemphigoid

NCT04128176
View directory record Official record
Conditions
Bullous Pemphigoid
Interventions
Rituximab combined with Omalizumab
Drug
Lead sponsor
University of California, Davis
Other
Eligibility
18 Years to 90 Years
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2023
U.S. locations
1
States / cities
Sacramento, California
Source: ClinicalTrials.gov public record
Updated Jul 2, 2024 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 2 Interventional Results available

A Randomized, Double-Blind, Placebo-Controlled Study of Omalizumab for Idiopathic Anaphylaxis

NCT00890162
View directory record Official record
Conditions
Anaphylaxis, Hypotension, Bronchospasm, Angioedema
Interventions
Epinephrine, Omalizumab (Xolair), Placebos
Drug
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 70 Years
Enrollment
16 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2019
U.S. locations
1
States / cities
Bethesda, Maryland
Source: ClinicalTrials.gov public record
Updated Jun 30, 2019 · Synced Sep 29, 2026, 9:35 AM EDT
Recruiting Phase 2 Interventional

Omalizumab Weight-Based Dosing Efficacy Trial

NCT06943534
View directory record Official record
Conditions
Allergies, Food Allergy
Interventions
5mg/kg omalizumab injection, 15mg/kg omalizumab injection
Drug
Lead sponsor
Massachusetts General Hospital
Other
Eligibility
1 Year to 55 Years
Enrollment
30 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2025 – 2028
U.S. locations
3
States / cities
Boston, Massachusetts • Chapel Hill, North Carolina • Dallas, Texas
Source: ClinicalTrials.gov public record
Updated Feb 4, 2026 · Synced Sep 29, 2026, 9:35 AM EDT
Completed No phase listed Observational

ICATA Asthma Mechanistic Study

NCT00377390
View directory record Official record
Conditions
Asthma
Interventions
Omalizumab
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
6 Years to 20 Years
Enrollment
224 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2009
U.S. locations
4
States / cities
Chicago, Illinois • New York, New York • Cleveland, Ohio + 1 more
Source: ClinicalTrials.gov public record
Updated Feb 6, 2013 · Synced Sep 29, 2026, 9:35 AM EDT
Terminated Phase 2 Interventional Results available

Effect of Anti-IgE in Non-Allergic Asthma

NCT00162773
View directory record Official record
Conditions
Asthma
Interventions
omalizumab, Placebo
Drug · Other
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years
Enrollment
29 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2005 – 2009
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated Aug 27, 2017 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 3 Interventional Results available

A Safety Study of Xolair (Omalizumab) in Patients With Chronic Idiopathic Urticaria (CIU) Who Remain Symptomatic Despite Treatment With H1 Antihistamines, H2 Blockers, and/or Leukotriene Receptor Antagonists

NCT01264939
View directory record Official record
Conditions
Chronic Idiopathic Urticaria
Interventions
Omalizumab, Placebo, H1 antihistamine, H2 antihistamine, leukotriene receptor antagonist, Diphenhydramine
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
12 Years to 75 Years
Enrollment
336 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2012
U.S. locations
40
States / cities
Scottsdale, Arizona • Mission Viejo, California • Napa, California + 35 more
Source: ClinicalTrials.gov public record
Updated Nov 25, 2013 · Synced Sep 29, 2026, 9:35 AM EDT
Completed No phase listed Observational Results available

Pharmacosurveillance Data Repository of Patients With and Without History of Anaphylactic Reactions Subsequent to Xolair Dosing

NCT00813748
View directory record Official record
Conditions
Allergic Asthma
Interventions
Xolair
Drug
Lead sponsor
Genentech, Inc.
Industry
Eligibility
Not listed
Enrollment
118 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2009 – 2014
U.S. locations
7
States / cities
Los Angeles, California • Valrico, Florida • Hinsdale, Illinois + 4 more
Source: ClinicalTrials.gov public record
Updated Jul 10, 2017 · Synced Sep 29, 2026, 9:35 AM EDT
Terminated Early Phase 1 Interventional

Gastrointestinal STRING Test With Oral Immunotherapy

NCT04943744
View directory record Official record
Conditions
Eosinophilic Disorder, Food Allergy
Interventions
Entero-tracker, omalizumab, dupliumab
Device · Biological
Lead sponsor
Stanford University
Other
Eligibility
5 Years to 55 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2024
U.S. locations
1
States / cities
Palo Alto, California
Source: ClinicalTrials.gov public record
Updated Sep 18, 2024 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 3 Interventional Results available

Efficacy and Safety of Omalizumab in Children (6 - < 12 Years) With Moderate-severe, Inadequately Controlled Allergic Asthma

NCT00079937
View directory record Official record
Conditions
Asthma
Interventions
Omalizumab, Placebo, Fluticasone
Drug
Lead sponsor
Novartis Pharmaceuticals
Industry
Eligibility
6 Years to 11 Years
Enrollment
628 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2008
U.S. locations
56
States / cities
Birmingham, Alabama • Little Rock, Arkansas • Huntington Beach, California + 48 more
Source: ClinicalTrials.gov public record
Updated Apr 10, 2012 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 4 Interventional

Safety and Efficacy Study of Omalizumab Given Prior to Immunotherapy

NCT00329381
View directory record Official record
Conditions
Asthma
Interventions
Xolair
Drug
Lead sponsor
University of Mississippi Medical Center
Other
Eligibility
18 Years to 55 Years
Enrollment
14 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2006 – 2007
U.S. locations
1
States / cities
Jackson, Mississippi
Source: ClinicalTrials.gov public record
Updated Jun 3, 2008 · Synced Sep 29, 2026, 9:35 AM EDT
Recruiting Phase 2 Interventional

Omalizumab Before Onset of Exacerbations

NCT05332067
View directory record Official record
Conditions
Asthma in Children, Atopy, Viral Upper Respiratory Infection
Interventions
Omalizumab, Placebo
Drug
Lead sponsor
Children's National Research Institute
Other
Eligibility
6 Years to 17 Years
Enrollment
300 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2022 – 2028
U.S. locations
1
States / cities
Washington D.C., District of Columbia
Source: ClinicalTrials.gov public record
Updated Jul 13, 2025 · Synced Sep 29, 2026, 9:35 AM EDT
Not listed No phase listed Observational

Measuring Omalizumab Responses Using Real-world Evidence (MORRE) Study

NCT04724278
View directory record Official record
Conditions
Asthma
Interventions
Not listed
Lead sponsor
National Jewish Health
Other
Eligibility
18 Years to 85 Years
Enrollment
50 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2021 – 2023
U.S. locations
1
States / cities
Denver, Colorado
Source: ClinicalTrials.gov public record
Updated Jun 22, 2021 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 1Phase 2 Interventional Results available

Xolair Enhances Oral Desensitization in Peanut Allergic Patients

NCT01290913
View directory record Official record
Conditions
Peanut Allergy
Interventions
Omalizumab
Drug
Lead sponsor
Lynda Schneider
Other
Eligibility
7 Years to 25 Years
Enrollment
13 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2011 – 2013
U.S. locations
1
States / cities
Boston, Massachusetts
Source: ClinicalTrials.gov public record
Updated Apr 6, 2015 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 2 Interventional

Effect of Anti-IgE in Chronic Urticaria

NCT00130234
View directory record Official record
Conditions
Urticaria
Interventions
Xolair® (Omalizumab)
Drug
Lead sponsor
Johns Hopkins University
Other
Eligibility
18 Years to 80 Years
Enrollment
20 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2004 – 2007
U.S. locations
1
States / cities
Baltimore, Maryland
Source: ClinicalTrials.gov public record
Updated May 6, 2008 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 2 Interventional

Omalizumab (Xolair) and Allergy Shots For the Treatment of Seasonal Allergies

NCT00078195
View directory record Official record
Conditions
Hay Fever, Hypersensitivity, Allergy, Rhinitis
Interventions
omalizumab, Placebo omalizumab, Ragweed rush immunotherapy (RIT), Placebo rush immunotherapy (RIT), Ragweed immunotherapy (IT), Placebo immunotherapy (IT)
Biological
Lead sponsor
National Institute of Allergy and Infectious Diseases (NIAID)
NIH
Eligibility
18 Years to 50 Years
Enrollment
168 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2003 – 2005
U.S. locations
3
States / cities
Iowa City, Iowa • Omaha, Nebraska • Madison, Wisconsin
Source: ClinicalTrials.gov public record
Updated Oct 17, 2016 · Synced Sep 29, 2026, 9:35 AM EDT
Completed Phase 2 Interventional Results available

Multi OIT to Test Immune Markers After Minimum Maintenance Dose

NCT03181009
View directory record Official record
Conditions
Food Allergy
Interventions
Omalizumab, Food Flour Allergens
Drug
Lead sponsor
Andrew Long, PharmD
Other
Eligibility
2 Years to 25 Years
Enrollment
60 participants
Healthy volunteers
Healthy volunteers not accepted
Timeline
2017 – 2019
U.S. locations
2
States / cities
Los Angeles, California • Mountain View, California
Source: ClinicalTrials.gov public record
Updated Apr 26, 2026 · Synced Sep 29, 2026, 9:35 AM EDT