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Feasibility Study of a New Immunoglobulin E (IgE) Assay Method
The main objective is to study the feasibility of a new specific IgE assay using a bioluminescence technique in a pediatric and adult allergic population. For this, we will collect blood, and urine during a blood test scheduled for the follow-up of the patient.
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FeNO as a Marker of Allergic Reactions to OFC and Response of OMA Treatment in Multiple FA
This is a Phase IV, open-label, single-center study to evaluate the change in FeNO as a marker of clinical response to OMA in participants with multiple FA.
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Fibrostenotic Eosinophilic Esophagitis: Assessment Tools
This protocol addresses a central hypothesis that fibrostenotic Eosinophilic Esophagitis (EoE) is characterized by abnormal esophageal structure and compliance compared to non fibrostenotic EoE and that distinctive cellular and molecular profiles predict the fibrostenotic phenotype. This study aims to define and assess the changes that occur in the structure and dynamics of the esophageal wall in pediatric Eosinophilic Esophagitis along with characterizing the histologic and molecular patterns in fibrostenotic EoE.
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First Line Weekly Chemo/Immunotherapy for Metastatic Head/Neck Squamous Cell Carcinoma Patients
The purpose of this research is to see what effects the treatment regimen chemotherapy (carboplatin and paclitaxel) plus immunotherapy (pembrolizumab), has on patients who have been diagnosed with head/neck squamous cell carcinoma and are unable to take the drug 5-fluorouracil
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Food Allergy in the Brain
Preventing food allergic reactions predominantly relies on allergen avoidance and managing this daily causes high anxiety in some patients, while having an allergic reaction can cause a post-traumatic stress disorder-like syndrome in children. The underlying mechanisms of these psychological changes are poorly understood, but one potential mechanism may be post-natal hippocampal neurogenesis (HN). HN is the production of new neurons from stem cells in the hippocampus which is one of the brain centres for memory and mood regulation. HN has been associated with cognitive function and some psychiatric disorders. Importantly, it can be influenced by both internal (bloodstream) and...
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Food Allergy Registry at a Single Site
This is a registry of participants who are interested in being screened for clinical trials at a single site.
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Food Product for Management of Gestational Diabetes
The goal of this pilot open pre-post clinical trial is to test effects of a wholegrain product in patients with newly diagnosed gestational diabetes. The main question it aims to answer is: Does the wholegrain product improve glucose tolerance and insulin sensitivity during a 75 g oral glucose tolerance test (OGTT). Participants will consume product on two consecutive evenings shortly after the first OGTT and will then perform a second OGTT. Researchers will compare the results of the first and second OGTT to see if glucose tolerance improved after consumption of the test product.
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Food-Specific and Component IgE Threshold Levels That Predict Food Allergy in People With Elevated Total Serum IgE Levels and Atopic Dermatitis
Background: Atopic dermatitis (AD), also called eczema, makes skin dry, red, and itchy. People with AD are more likely to get a food allergy than people without AD. But some food allergy tests are not always accurate in people with AD. Researchers want to study if people are truly allergic to milk and/or peanuts. Objectives: To improve the ways doctors test for food allergy in people with AD. Eligibility: People ages 3 21 who have had AD; have a high total IgE level (an allergic antibody); might have a milk and/or peanut allergy; and are currently enrolled in another NIH study Design: Participants will be screened under another protocol. Participants will have...
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Genetic Carbohydrate Maldigestion As a Model to Study Food Hypersensitivity
Irritable bowel syndrome (IBS) affects one in seven people with gastrointestinal (GI) symptoms. IBS strongly impacts quality of life, is a leading cause of work absenteeism, and consumes 0.5% of the healthcare annual budget. It manifests in women more than men with symptoms including abdominal pain, bloating, constipation (IBS-C), diarrhoea (IBS-D), and mixed presentations (IBS-M) (1). The development of therapeutic options is hampered by the poor understanding of the underlying cause of symptoms. Many patients find that certain foods (particularly carbohydrates) trigger their symptoms, and avoiding such foods has been shown effective in IBS, like in the low-FODMAP (fermentable...
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GERAP's Epidemiological Survey on Perioperative Hypersensitivity Reactions
Perioperative hypersensitivity reactions are still associated with significant morbidity and mortality despite early recognition and use of epinephrine. The epidemiology of these reactions evolves over time and changes with clinical practice. The main objective is to study the epidemiology of these reactions over a 10-year period, including patient phenotype, reaction phenotype and outcome of the allergic work-up.
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