Active clinical trials for "Food Hypersensitivity"

The Study examines the molecular basis of food allergy. It explores the interaction between T cells, InKT cells and cytokines in the development of food allergy. The study also explores these factors in development of tolerance "outgrowing" food allergy. It will also explore the genetic factors that lead to the development of food allergy. The study examines all type of food allergy including IgE mediated reactions, Eosinophilic Esophagitis and Food Protein Induced Enterocolitis

The purpose of this study is to elucidate the mechanisms underlying eosinophil growth, survival, migration, and function and to investigate and further characterize the pathophysiology of, clinical manifestations of, and spectrum of disease severity of eosinophilic inflammation in humans.

Non-IgE-mediated gastrointestinal food allergies (non-IgE-GIFA) are an evolving web of clinical conditions characterized by subacute and/or chronic symptoms and include food protein-induced enterocolitis syndrome (FPIES), food protein-induced enteropathy (FPE), food protein-induced allergic proctocolitis (FPIAP), and food protein-induced allergic dysmotility disorders (gastroesophageal reflux disease (GERD), colic and constipation) (FPIMD). Despite the prevalence and clinical impact of these conditions, the pathogenesis as well as the natural history and the best management of these disorders are still poorly defined. These limitations could be responsible for diagnostic delays and errors, and suboptimal clinical management. We aim to evaluate clinical features, natural course and pathophysiology of non-IgE-GIFA in the pediatric age.

The goal of this study is to establish a birth cohort that collects prenatal and early life biosamples and environmental samples and rigorously phenotypes young children for food allergy and Atopic Dermatitis (AD) to identify prenatal and early life markers of high risk for food allergy and AD, as well as biological pathways (endotypes) that result in these conditions. Primary Objectives: To study the role and interrelationships of established and novel clinical, environmental, biological, and genetic prenatal and early-life factors in the development of allergic diseases through age 3 years, with an emphasis on atopic dermatitis and food allergy To apply systems biology to identify mechanisms and biomarkers underlying the development of food allergy, atopic dermatitis, and their endotypes To collect, process, and assay or store environmental and biological samples for current and future use in the study of allergic disease development

Food Allergy (FA) is one of the most expensive allergic disorders in the pediatric age, and affecting up to 10% of children worldwide, it is recognized as a global health problem. The Oral Food Challenge (OFC) is the gold standard for FA diagnosis, but it is time-consuming, expensive, and potentially dangerous, as it can determine severe anaphylaxis. In addition, causing long-lasting impact on patient anxiety and mental health due to the physical duress and health risks involved with its application, OFC strategy is little applied in clinical practice with consequent diagnostic errors and delays. The goal of the Naples Pediatric Food Allergy (NAPFA) score is to develop a new clinical score including the main anamnestic, and clinical features for the easy identification of pediatric FA in primary care setting.

This is a protocol for prescreening of participants who would like to be in clinical studies in our Center at Stanford.

This is a registry of participants who are interested in being screened for clinical trials at a single site.

Food allergies are now a major problem. These experiments involve getting blood from people with food allergies and from people without food allergies. The blood collected will be used to answer questions and find information about peanut and other food allergies. Samples will come from: People signed up by the investigators at the University of Colorado Denver University of North Carolina, Massachusetts General Hospital, Children's Hospital of Colorado and the Immune Tolerance Network (Benaroya Research Institute) where people have been treated for peanut allergies University of North Carolina, Massachusetts General Hospital, National Jewish Health and The Children's Hospital in Denver where people have taken part or will take part in clinically indicated oral food challenges. Blood and health histories from the University of North Carolina, Massachusetts General Hospital, National Jewish Health, The Children's Hospital and the Immune Tolerance Network will not have personal information linked. The specific aims of this experiment are: Come up with a lab test that will predict how bad an allergic reaction will be to peanuts. Find out what part of a peanut causes allergic reactions. Come up with preventions that can block peanut allergies. Find the strongest proteins in walnuts.

This project aims to study the immune responses to peanut allergen in those with a skin barrier defect with and without skin massage, specifically it aims to: Establish if peanut allergen components can pass into human skin through regular massage using the peanut protein-containing extract. Clarify whether this effect is amplified in those with an impaired skin barrier (AD and dry skin vs healthy controls). Assess whether peanut protein components can be detected in interstitial skin fluid (ISF) using a suction device. Test whether peanut protein components present in ISF are able to induce activation of basophils in blood of peanut allergic donors. Assess whether the transcutaneous uptake of peanut protein can be reduced by the prior use of a barrier enhancing cream.

This is an observational cohort study of 221 breast-feeding mother-infant dyads delivered at term. The goal of the study is to investigate whether levels of immune-related microRNAs (miRNAs) in maternal breast milk (MBM) influence child atopy risk in the first 12 months, defined as atopic dermatitis, wheezing, or food allergy. Infant exposure to individual miRNA components will be quantified at 0, 4, and 16-weeks after delivery using high throughput RNA sequencing of MBM samples and detailed dietary logs employing the Infant Feeding Practices (IFP) survey. The relationship of individual miRNA exposures (parts per million) and presence/absence of atopy in the 48 weeks after delivery will be assessed, while controlling for environmental exposures (National Survey of Lead hazards and Allergens in Housing), maternal diet, and genetic predisposition. Potential transfer of MBM miRNAs to the infant oropharynx and subsequent impact on immune reactivity will also be explored through RNA sequencing of infant saliva and quantification of cytokine profiles.