Cause of Unexplained Anaphylaxis
This study will explore the possible cause of unexplained, or idiopathic, anaphylaxis. Anaphylaxis is a rapid, life-threatening, severe reaction that occurs suddenly after contact with an allergy-causing substance, usually a particular food, drug or stinging insect. The allergen triggers mast cells to release several substances, including histamine. Histamine is responsible for many of the symptoms that may occur, such as flushing, hives, swelling of the palms and soles or tongue and vocal cords, nasal congestion, itching and tearing of the eyes, shortness of breath and wheezing, stomach pain, vomiting, low blood pressure, loss of ...
CEGIR 7807: Validation of Online Cohort of EGID Patients Enrolled in RDCRN CEGIR Contact Registry
The purpose of this study is to validate the online cohort of EGID patients enrolled in the RDCRN CEGIR CR. In order to achieve this objective, the investigators will determine the agreement between self-reported EGID information by the enrollees and their physician's report and medical records. All participants enrolled in the RDCRN CEGIR CR with EGIDs will be invited via email to participate in this study.
CEGIR 7808: Use of Unsedated Transnasal Esophagoscopy (TNE) to Monitor Dietary Management of Eosinophilic Esophagitis in Children
The purpose of this study is to test the effectiveness of utilizing Transnasal Esophagoscopy as a means of monitoring Eosinophilic Esophagitis patients.
CEGIR 7809: Effect of Elemental Diet on Adult Patients With Eosinophilic Gastroenteritis
The purpose of this study is to investigate the effect of an elemental diet on adult patients with Eosinophilic Gastroenteritis
Changes in Esophageal Distensibility With Proton Pump Inhibitors in Patients With Esophageal Eosinophilia: A Pilot Study
This pilot study will explore whether treatment of eosinophilic inflammation in the esophagus is associated with an improved distensibility of the esophagus. Furthermore, previous studies of the esophagus using EndoFlip only measured distensibility of the distal esophagus, specifically the distal esophagus and esophagogastric junction. Eosinophilia in EoE has been demonstrated to affect both upper, middle and lower esophagus. The aim is to measure distensibility both proximal and distal, before and after treatment.
Characteristic and Evolution of an Atypical IgE-mediated Cow Milk Allergy Form With Hands and Feet Angio-oedema
Cow milk allergy is one of the most frequent food allergy among children. Cow milk protein's avoidance is needed until spontaneous recovery during the two first years of life. A atypical clinical form with angio-oedema of hands and feet which is associated with high rate of lactoserum's IgE might be a hope of an earlier recovery.
Characteristics and Inflammatory Markers in Children With Eosinophilic Esophagitis (EoE)
Single center observational and specimen banking study for children with eosinophilic esophagitis EoE to gauge natural history and inflammatory markers
Characteristics of Eosinophilic Gastritis, Enteritis, and Colitis in a Multi-Site Cohort
The purpose of this study is to investigate features of patients with Eosinophilic Gastrointestinal Disorders (EGIDs) other than Eosinophilic Esophagitis (EoE) alone, including Eosinophilic Gastritis (EG), Eosinophilic Gastroenteritis (EGE), and Eosinophilic Colitis (EC).
Clinical Cross Reactions Between Anacardiaceae
The prevalence of food allergies has increased in recent decades, ranging from 1 to 3% of the general population. According to international literature and French national surveys, nuts today represent a group of allergens often associated with severe allergic reactions. They are responsible for 18 to 40% of deaths from food-related anaphylaxis. Among all nuts, the prevalence of anacardiac allergies (mainly cashew and pistachio) continues to increase and has become a growing public health problem. Today, global production is estimated at 4.9 million tonnes of cashews and 1.1 million tonnes of pistachios. The resulting increased exposure...
Clinical Study Using Biologics to Improve Multi OIT Outcomes
Food allergy (FA) is a serious public health concern that causes potentially-life threatening reactions in affected patients. The prevalence of food allergy in the United States (U.S.) has increased substantially and now affects 15 million patients:4-8% of children (6 million children, 30% with multiple food allergies) and about 9% of adults. This is a prospective Phase 2, single-center, multi-allergen OIT study in participants with proven allergies to 2 or 3 different foods in which one must be a peanut. The total of participants in the clinical study will be 110, ages 6 to 25 years with a history of multiple food allergies of 2 to 3 ...