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Peanut allergy is known to cause severe anaphylactic reactions.The goal of this proposal is to produce a new treatment that would benefit young subjects who have recently been diagnosed with peanut allergy by lowering the risk of anaphylactic reactions (desensitization), and changing the peanut-specific immune response in subjects who have peanut allergy (tolerance).
Peanut allergy is known to cause severe anaphylactic reactions. Compared with other food allergies, it tends to be more persistent and its prevalence seems to be rising. Currently, there is no proven treatment other than strict avoidance. We are attempting to decrease the risk of anaphylaxis on accidental ingestion by desensitizing subjects to peanut using peanut mucosal immunotherapy (PMIT). We are also studying the effect of PMIT on the peanut-specific immune response to determine if tolerance to peanut protein will develop. Based on our preliminary work and recent studies supporting the importance of early oral exposure in tolerance induction, we propose that early treatment of peanut allergy with PMIT will be safe and effective. Children ages 9 to 36 months with peanut allergy will be randomized to receive high or low dose PMIT using peanut flour. Peanut-allergic subjects receiving no intervention will serve as controls. Subjects will undergo desensitization on the first day and then increase the doses gradually to a maintenance dose. Doses will be taken daily at home except for dose increases which will be done on the Duke Clinical Research Unit. Subjects will undergo a double-blinded, placebo-controlled food challenge (DBPCFC) if challenge criteria are met. Subjects passing the first challenge will stop PMIT and repeat the DBPCFC to assess tolerance. Outcome variables of interest include response to double-blind placebo controlled food challenges, skin prick testing, peanut specific serum IgE, IgG, and IgG4 and stool IgA, T and B cell responses, quality of life, and adverse events. These longitudinal results will be compared between high and low dose PMIT groups and controls using appropriate statistical analysis.
Allocation: Randomized, Control: Historical Control, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
Peanut and placebo flour, Peanut protein flour
Duke University Medical Center
Published on BioPortfolio: 2014-08-27T03:21:00-0400
This is a study in which increasing amounts of peanut flour are given to the children who are peanut allergic to desensitize them to peanut. The hypothesis is that the peanut allergic pati...
Peanut allergy is known to cause severe anaphylactic reactions.The goal of this proposal is to produce a new treatment that would benefit subjects who have peanut allergy by lowering the r...
The specific aim of this study is to desensitize peanut-allergic subjects with peanut allergen-specific, sublingual immunotherapy (SLIT) by placing drops of peanut protein under the tongue...
The purpose of this study is to evaluate the safety and immune response to daily sublingual (under the tongue) immunotherapy (SLIT) with peanut extract in adults and children with peanut a...
Peanut allergy is one of the most serious food allergies because of its life long persistence, and the potential for severe allergic reactions. Effective oral immunotherapy would benefit p...
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IgE signatures to peanut allergen measured in early childhood allow predicting the likelihood of peanut allergy in adolescence. Peanut symptoms and Ara h 2 IgE >2.0 ISU-E at 4 years predict peanut all...
Oral immunotherapy (OIT) using roasted peanut flour can effectively desensitize peanut-allergic children  but is considered not to be ready for clinical practice  due to high rates (≥45%) of a...
The presence of peanut allergy has increased over the years and still remains one of the most common causes of food-related anaphylaxis. The way in which peanut sensitization occurs has been explored,...
Recent trials have shown that avoiding peanuts during infancy increases the risk of peanut allergy; however, these studies did not address maternal peanut consumption.
Allergic reaction to peanuts that is triggered by the immune system.
A flour made of pulverized, dried fish or fish parts.
Baked food product made of flour or meal that is moistened, kneaded, and sometimes fermented. A major food since prehistoric times, it has been made in various forms using a variety of ingredients and methods.
Ground up seed of WHEAT.
Food products manufactured from fish (e.g., FISH FLOUR, fish meal).
The term allergy is used to describe a response, within the body, to a substance, which is not necessarily harmful in itself, but results in an immune response and a reaction that causes symptoms and disease in a predisposed person, which in turn can cau...
Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism ...