Effects of omalizumab in patients with food allergy
Omalizumab is a novel therapy approved for treating patients with moderate to severe persistent allergic asthma with a serum IgE ranging from 30 to 700 IU/mL. We examined the efficacy of omalizumab as a treatment for IgE-mediated food allergy. An Institutional Review Board‐approved prospective pilot study was performed to assess the efficacy of omalizumab in 22 patients with persistent asthma and concomitant IgE-mediated food allergy. All patients showed skin test positivity to foods and experienced allergic food reactions based on history. Patients were interviewed on unintentional and/or unauthorized exposures to sensitized foods. Thirteen female and nine male patients (range, 4‐66 years old; mean, 38 years) were evaluated in a private practice setting. Mean IgE level was 1120.74 IU/mL. Sensitized allergens included fish, shellfish, peanuts, tree nuts, egg, soybean, and wheat. All 22 (100%) patients maintained significant improvement as shown by a decrease/lack of clinical symptoms on reexposure to sensitized foods. Clinical improvement by the sixth dosage of omalizumab (150‐300 mg q. 2‐4 weeks) was noted by history and physical examination. Eight patients noted a decrease in their food-induced atopic dermatitis, 13 patients noted a decrease in their food-induced asthma symptoms, 3 patients noted a decrease in their food-induced urticaria, 6 patients noted a decrease in their food-induced rhinosinusitis symptoms, and 9 patients showed efficacy for angioedema and/or anaphylaxis. While treating asthma patients with omalizumab, patients subjectively observed a reduction in their concomitant IgE-mediated food allergy symptoms.
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Document Type: Research Article
Affiliations: VA Greater Los Angeles Healthcare System/University of California Los Angeles, Los Angeles, California, USA. [email protected]
Publication date: January 1, 2010
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