Gastrointestinal allergy

This study looks at the safety of a nasal spray called neffy compared to a standard epinephrine shot for treating allergic reactions. It involves 600 people aged 4 and older who have an allergic reaction during a food challenge or allergy shot session. The goal is to see if the s…

This study follows children aged 0 to 14 with suspected non-IgE food allergies, which cause digestive symptoms like reflux, colic, or constipation rather than immediate allergic reactions. Researchers will track symptoms, triggers, and growth over time, and analyze blood samples …

This study aims to collect blood, nasal fluid, skin cells, urine, and medical data from 10,000 people aged 3 to 100 with allergies, asthma, eczema, or sinus issues. Participants will have up to 3 years of follow-up visits and questionnaires. The goal is to create a large reposito…

Stanford University is recruiting 2,500 people with possible allergies to improve how allergies are diagnosed. Researchers will study skin test responses and look at genetic and immune system factors. This study does not test any new treatment, but aims to deepen knowledge of all…

This study is testing a new method to measure allergy-related substances (IgE) in blood and urine. Researchers want to see if this new technique works as well as current tests. About 1,376 children and adults with allergies will provide blood and urine samples during routine visi…

This study looks at 40 newborns with isolated rectal bleeding to see how many have a cow's milk protein allergy versus a temporary condition called transient neonatal colitis. By removing and then reintroducing cow's milk from the diet, doctors can confirm an allergy if bleeding …