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Summary of the 2008 National Institute of Allergy and Infectious Diseases-US Food and Drug Administration Workshop on Food Allergy Clinical Trial Design



Summary of the 2008 National Institute of Allergy and Infectious Diseases-US Food and Drug Administration Workshop on Food Allergy Clinical Trial Design



Journal of Allergy and Clinical Immunology 124(4): 671-8.E1



This article summarizes the proceedings of a 2008 Workshop on Food Allergy Clinical Trials Design co-organized by the National Institute of Allergy and Infectious Diseases and the US Food and Drug Administration. The use of food allergens both as therapy and for oral food challenges is associated with a risk of anaphylaxis. Investigators are strongly encouraged to address regulatory considerations by discussing proposed studies with the US Food and Drug Administration. Food allergen administration through the oral or sublingual routes might be less risky than through the subcutaneous route, but this hypothesis has not been proved, and subjects with food allergy might still be at high risk of allergic reactions to such allergen administration. Two distinct mechanisms might lead to beneficial clinical outcomes: desensitization (reversible when food allergen therapy is stopped) and tolerance (persistent benefit even after allergen therapy is stopped). There are important clinical distinctions between desensitization and tolerance. The efficacy of a therapy for food allergy can be evaluated by assessing changes in the dose response to double-blind, placebo-controlled oral food challenges before and after therapy and also by assessing changes in the number of allergic episodes during a longitudinal natural history/exposure study; both approaches have strengths and limitations.

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Accession: 056009097

Download citation: RISBibTeXText

PMID: 19560803

DOI: 10.1016/j.jaci.2009.05.027


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