View clinical trials related to Food Hypersensitivity.
Filter by:The number of young children with food allergy, in particular with nut allergy, is increasing worldwide. A diagnosis of nut allergy can cause much anxiety in parents. They worry about their child being exposed to nuts in foods when outside the home. This anxiety can lead to these young children being restricted from taking part in normal childhood activities. Last year, the investigators conducted a study Recording accidental allergic reactions in children's and teenagers (ReAACT) in which they surveyed over 500 children with food allergy attending our clinic, in order to learn more about their participation in social activities and their practices in relation to eating outside the home. In the present study, the investigators wish to build upon these results through using the findings to develop a programme to help to lessen the fear and anxiety experienced by parents of young children with newly diagnosed nut allergy. The investigators imagine that knowledge of how other families with children who have food allergy participate in activities involving food outside of the home might help newly diagnosed families. The investigators would like to know if parents of young children newly diagnosed with nut allergy would benefit from hearing this information. In order to do this, the investigators have developed a short online programme that parents can take part in, in their own homes. Content will focus on the day to day social activities of children with food allergy, based on the findings of the REAACT study. To help the investigators to measure the effectiveness of this programme on reducing anxiety and improving quality of life, they are asking all volunteer participants to complete 4 questionnaires. Two of these questionnaires will ask a parent to indicate 1) the impact of their child's nut allergy on their quality of life and 2) on their child's quality of life. The third questionnaire will ask about their level of anxiety. The fourth questionnaire will ask about their emotions and the coping strategies they use in the context of their child's food allergy. Participants will be randomized into 2 groups. Group 1 will take part in the online education session along with the usual education provided by the allergy team. The questionnaires will be completed online using only a study identifier number. This will ensure anonymity throughout the study. The only personal information that will be asked is parent's age group, whether they are a mother or father, their child's age and gender and whether they have any other allergies. Two weeks following the online educational session, Groups 1 and 2 will again complete the online questionnaires. The research question is to determine if the online educational session is effective at decreasing anxiety and improving quality of life in parents of young children with nut allergy. The outcomes are health related quality of life and level of anxiety. It is hoped that the findings will positively support parents, children and their families in Ireland who are living and managing nut allergy on a daily basis.
Food allergies account for only a small percentage of all adverse reactions to foods and their prevalence has increased over the past 10-15 years, particularly in industrialized countries: 3-6% of children under 3 years of age and 1-3% of adults. Food allergens in children are represented by milk, egg, wheat, soy, peanuts, tree nuts, fish, and shellfish. The majority of allergic processes that develop during the childhood tend to abate with age, whereas those that occur during adulthood tend to persist. Hypersensitivity refers to an excessive immunological reaction to food antigens with undesirable consequences. The first aim of our study is to evaluate the role of intestinal microbiota and their relationship with immune tolerance or allergic disorder. The second aim of our study is determining the biochemical metabolites on the host (human being) in allergic disorder, and these biochemical metabolites can be measured in fecal or urine samples by metabolomics methods. We try to seek to gain an advanced understanding of gut microbiota and biochemical metabolites associated with mucosal immune responses in the host. These findings could be useful for developing strategies to modify the gut microbiota or medical applications (e.g. healthy microbe preparations) involving beneficial microorganisms to control the development of allergic disorders.
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: 1. Establish if peanut allergen components can pass into human skin through regular massage using the peanut protein-containing extract. 2. Clarify whether this effect is amplified in those with an impaired skin barrier (AD and dry skin vs healthy controls). 3. Assess whether peanut protein components can be detected in interstitial skin fluid (ISF) using a suction device. 4. Test whether peanut protein components present in ISF are able to induce activation of basophils in blood of peanut allergic donors. 5. Assess whether the transcutaneous uptake of peanut protein can be reduced by the prior use of a barrier enhancing cream.
The main purpose of this study is to evaluate efficacy and safety of an amino acid-based formula Neocate Jr in children with food protein allergy, and to evaluate nutrition sufficiency of Neocate Jr in 1 to 10 years old children with food protein allergy.
The BAT Impact study is a prospective multicentre study in the UK using a biomarker-led study design to compare the incidence of adverse events (defined as allergic reactions during oral food challenges) in a randomized-controlled trial. Patients will either follow the standard-of-care (i.e. an oral food challenge in case of equivocal SPT/sIgE) or follow a basophil activation test (BAT)/mast cell activation test (MAT)-based strategy, i.e. patients with a positive BAT or MAT are dispensed of an oral food challenge (OFC) and patients with a negative BAT/MAT undergo an OFC.
The aim of this study is to gain more knowledge on the nutritional and immunological aspects of allergy to milk and eggs in children.
Aim of the study is to improve the diagnosis of food allergy and hypersensitivity. Intestinal homogenates will be used to determine total IgE, specific IgE, tryptase, histamine and inflammation parameters (IFNgamma, TNFalpha). These data will be correlated with serum values and disease status. In addition, organoids from duodenal tissue will be isolated and cultured in vitro and stimulated with the major food allergens. The gene and protein expression will be checked to identify relevant biomarkers.
This is an open-label, safety extension study for participants who participated in the Harmony study (protocol ADP101-MA-01).
Oral intake of nickel (Ni) is capable of causing the onset of systemic disorders in patients with Systemic Allergy to Nickel Syndrome (SNAS), an emerging allergic condition. Given its ubiquitous age, it is not possible to completely eliminate Ni and, therefore, it is necessary to plan a low-content diet. However, due to various factors (such as variability of Ni concentration in the soil, individual foods, variability of dietary habits and daily menus, different intake of Ni contained in the water, different intake of kitchen utensils, simultaneous intake of other substances), a restrictive diet is difficult and socially discriminating with a strongly negative impact on the quality of life of these patients. Hydroponic agriculture in a completely controlled, aseptic, artificial, soilless environment could be an alternative for patients suffering from SNAS with known and lower concentrations of metals than those deriving from conventional agricultural techniques, which are affected by the soil of origin and practices cultivation. The primary outcome of the study is to evaluate the possible effects of taking tomato puree deriving from hydroponic agriculture compared to tomato puree from conventional cultivation in the subjective control of SNAS symptoms, in patients following a low-diet diet. This is an interventional, randomized, double-blind, single-center crossover study involving a cohort of SNAS patients following a low-nickel diet for at least 4-6 weeks.
This interventional study aims to investigate the tolerance of organic formula milk on infants supplemented with organic formula milk. This study also observes gut microbiota, short chain fatty acids, nutritional status, and atopic manifestation on infants supplemented with organic formula milk. This study will be done on 50 subjects, with an age of 6-7 months old, 38-42 weeks of gestation, had a birth weight ranging from 2700 grams to 4200 grams, not suffering from any major congenital anomaly, not severely stunted at birth, has a normal thyroid function, not suffering any prominent gastrointestinal disease, not having a severe disease at the beginning of study, and has an approval from their parents. Participants' diet will be added an organic formula for infant for 3 months, and will be monitored regularly, since this study starts, at each month, and at the end of this study. The participants' gut microbiomes will be calculated at every session of monitoring by collecting their fecal samples, and brought to laboratory. Anthropological data (weight, height, body mass index), atopic manifestation, IL-6 and IL-10 will also be collected.