View clinical trials related to Food Hypersensitivity.
Filter by:There is a lack of prospective scientific data on the regular use of moisturizers in patients at risk of developing atopic dermatitis. Although generally accepted and widely used for secondary prevention, emollients have not been studied as a primary prevention strategy. Strategies previously studied for the prevention of atopic dermatitis include maternal and child's dietary manipulations, allergens avoidance, delay of food introduction, exclusive breastfeeding and probiotic supplementation. Despite years of research, none of those strategies yielded to strong evidence of a protective effect. There is therefore a need to explore novel strategies. There is a need to compare the cumulative incidence rate of atopic dermatitis in newborns using a standard bathing and moisturizing routine with a good moisturizer to a non interventional group. This 2-year study will recruit approximately four hundred and sixty (460) pregnant women with a first degree relative of the child to be born who currently has (or previously had) a diagnosis of atopic dermatitis in order to study approximately 200 eligible newborns in each of the two study groups at the beginning of the study. Pregnant women will be randomized (1:1) to either daily use of the moisturizer Lipikar Balm AP (applied to their infant) starting from birth (Group 1) immediately after bathing or to no intervention (Group 2).
Background: - Food allergies are characterized by abnormal immune system responses to certain foods, such as peanuts, strawberries, and shellfish. Some individuals with these allergies have immediate allergic reactions on contact with the food in question and need immediate treatment to prevent severe complications. In contrast, eosinophil-associated gastrointestinal disorders are related disorders in which white blood cells in the intestinal tract react to certain foods, causing abdominal pain, nausea, and other digestion problems. Researchers are interested in studying these conditions to better understand how the immune system responds to food allergies. Objectives: - To examine how the immune system responds to food allergens. - To examine how certain white blood cells contribute to disease in individuals with food allergies and other inflammatory diseases. Eligibility: - Individuals between 18 and 65 years of age who have a history of (a) severe allergic reaction to peanuts (and have peanut-specific antibodies), (b) allergy or inflammatory disease, or (c) eosinophil-associated gastrointestinal disorder (with at least two documented food allergies). - Healthy volunteers between 18 and 65 years of age who have no known allergies or asthma. Design: - All participants will have a screening visit and a procedure visit. The procedure visit will take place within 30 to 60 days of the screening visit, and will take 3 to 4 hours depending on the procedure(s) done. - Participants will be screened with a physical examination and medical history, and will provide blood samples for testing. Participants with peanut or other allergies will have additional tests to determine their levels of sensitivity to certain foods. Participants with eosinophil-associated gastrointestinal disorder will provide stool samples for testing. - At the procedure visit, participants with peanut allergies and participants with other allergies will provide blood samples and have leukapherisis to collect white blood cells for examination. - At the procedure visit, healthy volunteers and participants with eosinophil-associated gastrointestinal disorder will provide blood samples and have leukapherisis to collect white blood cells for examination. In addition, some but not all of these participants will have a procedure called esophagogastroduodenoscopy (EGD), which will examine the esophagus, stomach, and small intestine. Participants who are scheduled to have EGD will be asked to fast for 6 hours before the procedure.
The purpose of this study is to evaluate whether a new version of an amino acid based formula improves tolerance to milk in cow's milk allergic infants/young children.
The questions proposed by this study are those of safety and efficacy. 1. Concerning safety: "Are sublingual food drops (SLIT) safe enough to be used for stimulation of natural immune suppression in patients with food allergies?" 2. Concerning efficacy: "Do the drops suppress food allergy enough for patients to eat previously allergic foods with little or no allergic reaction?" The aim of this trial is to provide systematic collection of data proving the safety and efficacy of food drops in the correction of food allergy. A patient's range of symptoms, which can include but are not limited to fatigue, nausea, vomiting, diarrhea, abdominal pain, and insomnia can be diagnostic indicators of food allergies. An approach to answering the above questions can be done by a randomized, controlled, blinded study. The design of our study could be reasonable and powerful because this layout limits bias and accounts for placebo effects: The patients enrolled in our study will present with food allergy symptoms and diagnostic tests will provide the specific information regarding their food allergies. Once the diagnosis has been made and consent for treatment has been obtained, participants will be randomly assigned to either the group that receives the food allergy intervention with SLIT ( food allergens mixed with 50% glycerin in a vial) or the group that receives the control SLIT (glycerin only). The patients are truly blinded to their treatment because all the SLIT food allergy vials are identical and contain no distinguishing features that could reveal their contents. There is also no difference in taste between a vial containing glycerin and food allergens and a vial containing only glycerin. Therefore, a food allergy SLIT randomized-controlled study can be reasonably achieved.
This study will evaluate and follow patients with various allergic, hypersensitivity and inflammatory disorders. The protocol is not designed to test new treatments; patients will be managed with standard of care therapies. Participants may be referred to other current NIAID protocols as appropriate or to new studies as they are developed, but will not be required to join another study. Patients with allergic, hypersensitivity or inflammatory disorders between the ages of 3 years and 80 years may be eligible for this study. Conditions of interest include, but are not limited to, asthma, allergic rhinitis, mastocytosis, atopic dermatitis and food allergy. Participants will have a medical history and physical examination, plus standard tests for diagnosing and treating their specific disorder. Tests may include routine blood and urine studies, X-rays or other imaging studies, allergy skin tests and lung function tests. Blood samples may be collected for research on immune system cells and other substances involved in immune function. Generally, about 2 to 6 tablespoons will be drawn at a time, but no more than 16 ounces will be collected over a 6-week period. NIH does not provide emergency medical treatment or treatment for other, unrelated conditions the patient may have. Therefore, patients must maintain a personal physician for these purposes.