Related Experiment Video
Updated: Oct 23, 2025

Humanized Mediator Release Assay as a Read-Out for Allergen Potency
Published on: June 29, 2021
Update on omalizumab in allergen immunotherapy
Jennifer A Dantzer1, Robert A Wood
1Division of Allergy, Immunology, and Rheumatology, Department of Pediatrics, Johns Hopkins School of Medicine, Baltimore, Maryland, USA.
Omalizumab combined with allergen immunotherapy may speed up treatment and reduce side effects for allergies. However, severe reactions can still occur, and long-term risks after stopping omalizumab require further study.
Area of Science:
- Immunology
- Allergy Research
- Pharmacology
Background:
- Omalizumab is a monoclonal antibody used in treating allergic diseases.
- Allergen immunotherapy (AIT) aims to desensitize patients to allergens.
- Combining omalizumab with AIT is an emerging therapeutic strategy.
Purpose of the Study:
- To review current studies on omalizumab's role in allergen immunotherapy.
- To assess the efficacy and safety of this combination therapy.
Main Methods:
- Literature review of relevant clinical studies.
- Analysis of data on treatment duration, adverse events, and long-term outcomes.
Main Results:
- Omalizumab may shorten the time to reach maintenance dosing in AIT.
- Combination therapy appears to reduce adverse events associated with AIT.
- Severe adverse events are still possible, and long-term data is limited.
- Potential for increased reactivity after omalizumab cessation noted.
Conclusions:
- Omalizumab in conjunction with AIT shows promise for allergic rhinitis, venom hypersensitivity, and food allergy.
- This combination therapy may improve treatment, especially for high-risk individuals.
- Further large-scale, placebo-controlled trials are necessary to optimize use and confirm long-term benefits.
Related Concept Videos
Antiasthma Drugs: Mast Cell Stabilizers and Anti-IgE Drugs
Mast cell stabilizers, such as cromolyn (also known as sodium cromoglycate) and nedocromil (Tilade), are effective drugs in asthma management. These stabilizers hinder histamine release by skillfully obstructing the activation of mast cells and other cellular entities. Notably, they navigate this task without...
Antiasthma Drugs: Leukotriene Modifiers
Leukotriene modifiers work through two distinct mechanisms:
Allergic Reactions
Allergic Drug Reactions
Antiasthma Drugs: Muscarinic Receptor Antagonists
Antimuscarinic agents compete with ACh for the same binding site on the muscarinic receptors. By binding to these receptors, they inhibit the downstream effects of ACh and block the parasympathetic...
Antiasthma Drugs: Methylxanthines
Theophylline is thought to inhibit phosphodiesterase enzymes, increasing intracellular levels of cyclic adenosine monophosphate (cAMP) and cyclic guanosine monophosphate (cGMP). This rise in cAMP and cGMP concentrations stimulates cardiac function,...

