Defining ENDOtypes in Perioperative Hypersensitivity by Extensive Cellular and Molecular PHENotyping (ENDOPHEN)
Perioperative Acute Hypersensitivity (PAH) is a systemic reaction that occurs rapidly following injection of a drug during anesthesia. The main mechanism evoked is an immune response of immediate systemic hypersensitivity or anaphylaxis. Anaphylactic reactions are classically described as IgE-dependent and triggered by the injection of allergen which by bridging specific IgE present on the surface of mast cells, induces a massive release of histamine responsible for the observed symptoms. The diagnosis of this mechanism (IgE endotype) requires the determination of associated circulating mediators (histamine and mast cell tryptase) as...
DEpth of EPinephrine Delivery With Auto-injectors Devices
Anaphylaxis is a serious allergic reaction that is rapid in onset and may cause death. Although there are several causes of fatal anaphylaxis, food allergy is one of the most common. Epinephrine is recommended as the initial treatment of choice for anaphylaxis. A delay in epinephrine administration may contribute to an increased risk of death. Therefore, the World Allergy Organization recommends that, for the treatment of anaphylaxis, epinephrine solution be administered intramuscularly in the mid-anterolateral thigh. In France 3 auto-injector pens are available: Anapen®, Epipen® and Jext®. For weight> 30 kg, the devices have a...
Detection of Metabolite Biomarkers for the Early Diagnosis and Prognosis of Cow's Milk Allergy in Children
In this study, fecal and urine samples will be collected from children diagnosed with : - IgE mediated cow's milk allergy, - suspected of a cow's milk allergy, but with negative diagnosis - IgE mediated food allergy other than cow's milk - healthy brothers and sisters of the first three groups A subset of patients with IgE-mediated cow's milk allergy will be asked to provide a urine and fecal sample yearly for prognostic purposes. The samples will be analyzed using a technique called metabolomics to identify biomarker candidates with diagnostic and/or prognostic potential. Additionally,...
Determine Immunoglobulin G4 (IgG4) Standards for Cow's Milk and Egg in Different Populations of Allergic and Non-allergic Children
The study objectives are : Determine standards of plasma levels of casein-specific immunoglobulin G4 (IgG4) and egg-specific immunoglobulin G4 (IgG4) as a function of age, in non-allergic children, in allergic children, and in cured former allergic patients. Analyze the plasma IgG4 / IgE ratio, according to the result of the oral provocation test (tolerance versus allergy) and, in the event of a reaction, according to the reactogenic dose (dose which caused the reaction).Determine whether analysis of the plasma metabolome can identify children with a cured allergy to cow's milk protein or to egg from those with a ...
Diagnostic Accuracy and Safety of DBV1605 for the Diagnosis of Non-IgE Mediated Cow's Milk Allergy in Children
Study to assess the diagnostic accuracy (sensitivity, specificity, positive and negative predictive value) of DBV1605 for the diagnosis of non-Immunoglobulin E (IgE) mediated cow's milk allergy (CMA) in children with symptoms suggestive of non-IgE mediated CMA.
Dose Escalation Study to Evaluate an Experimental New Treatment (CALY-002) in Healthy Subjects and Subjects With Celiac Disease and Eosinophilic Esophagitis
This is a single and multiple ascending study to characterize the safety, PK, PD and clinical effect in healthy volunteers and participants with Celiac Disease and Eosinophilic Esophagitis.
Early Peanut Introduction: Translation to Clinical Practice
The recent finding that early introduction of peanut can prevent ~70-90% of peanut allergy is a major step towards prevention of food allergy. However, because that finding was from a clinical trial in a very select population, there are several major questions that must be answered in order to implement these findings into clinical practice without causing more harm than good. These questions include who, if anyone, should be screened prior to early introduction for peanut allergy, how this screening should be done, and what quantity of peanut ingestion is needed to prevent peanut allergy. The goal of this project is to answer these...
Effectiveness of Dupilumab in Food Allergic Patients With Moderate to Severe Atopic Dermatitis
This study evaluates the effectiveness of Dupilumab in food allergic patients with moderate to severe Atopic Dermatitis (AD). Included patients participated in the BioDay Registry.
Effect of Camel Milk on Insulin and Incretin Response
To examine the differential effect of camel and cow milk on the physiological response, to a liquid mixed-meal challenge, in people with normal glucose tolerance
Effect of Mediterranean Diet During Pregnancy on Gut Microbiota and on the Epigenetics
Food allergies (AA) are adverse reactions to food. Over the last decade, the AA scenario has changed profoundly. In many countries, there has been a significant increase in the prevalence, persistence and severity of AAs and a consequent increase in the socio-economic impact associated with these conditions. For these reasons, there is a strong need to develop effective strategies to prevent these conditions. To date, the AA etiopathogenesis is not yet fully defined. Genetic factors may predispose certain subjects to the development of AA, but these alone can not explain the change observed in the AA scenario over the last few years, ...