Canadian Peanut Thresholds Study
An important gap in the management of peanut allergy is that we do not know the threshold dose, below which most peanut allergic individuals will not react. There is likely a spectrum of reactivity to peanut where some individuals react to trace doses, whereas others are able to tolerate larger doses. The purpose of this study is to determine the minimum threshold dose needed to cause a mild objective reaction when peanuts are consumed by peanut-allergic individuals in a carefully controlled clinical setting. 30 peanut-allergic participants aged 7-65 years will undergo a two-day, double blind placebo controlled food challenge. Participants...
Can Vitamin D Supplementation in Infants Prevent Food Allergy in the First Year of Life? The VITALITY Trial
There is an urgent need to prevent the onset and progression of food allergy in our population. Evidence demonstrates that food allergy and atopic eczema represent the earliest manifestations of the atopic march with 50% of infants with food allergy predicted to develop respiratory allergic diseases later in life. We report that Australia has the highest prevalence of IgE-mediated food allergy in the world, with 10% of infants having challenge-proven food allergy in Melbourne. There has been a 5-fold increase in hospital admissions for life-threatening anaphylaxis. These changes are most pronounced in children less than 5 years, suggesting...
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).