146 Clinical Trials for Various Conditions
The main purpose of study is to assess the safety, tolerability, and pharmacokinetic (PK) of benralizumab.
This phase II trial studies how well ruxolitinib works in treating patients with hypereosinophilic syndrome or primary eosinophilic disorders.
The purpose of this study is to elucidate the mechanisms underlying eosinophil growth, survival, migration, and function and to investigate and further characterize the pathophysiology of, clinical manifestations of, and spectrum of disease severity of eosinophilic inflammation in humans.
The purpose of this study is to conduct a translational study in patients with primary eosinophil associated gastrointestinal disorders \[EGID\] (e.g. eosinophilic esophagitis eosinophilic gastritis, eosinophilic enteritis \[EE\], eosinophilic colitis, and eosinophilic gastroenteritis \[EGE\]) with the aim of developing a data bank containing pertinent patient demographic information, tissue samples, and DNA, which will facilitate research on the pathophysiology of inflammatory disorders and the development of a verified successful clinical treatment program.
The purpose of this study is assessing the efficacy of swallowed Flovent® vs. placebo for the treatment of eosinophilic esophagitis (EE).
This STRING study will examine markers of esophageal inflammation using a minimally-invasive testing device, the esophageal string test (EST). The primary objective is to determine the effect of omalizumab (Xolair) and dupilumab (Dupixent) on markers of eosinophilic inflammation in the esophagus of subjects treated with omalizumab-facilitated mOIT(mult-allergen oral immunotherapy) and/or mOIT with concurrent dupilumab.
Background: * Mast cells are responsible for most symptoms of allergic reactions. In some allergic diseases, it is unusually easy to cause mast cells to release their contents and cause allergic reactions. In other cases, mast cells grow abnormally and, in rare cases, can result in tumors. Mast cells also control other parts of the immune system. * Understanding why mast cells behave abnormally in allergic diseases is important to finding better ways for diagnosing and treating these potentially life-threatening disorders. Objectives: * To screen mast cells at the genetic and functional levels to characterize abnormalities, identify mutations, detect carrier states, and/or develop therapies for such disorders. * To create a library of information about inherited diseases of mast cell homeostasis and activation, including piebaldism (problems with skin and hair pigmentation), anaphylaxis (severe allergic reaction), allergies, asthma, atopic dermatitis (eczema), allergic rhinitis ( hay fever ), food allergies, urticaria/angioedema (hives/swelling), immunodeficiency diseases, and autoimmune diseases. Eligibility: * Patients between the ages of 1 and 80 years who have been referred by a physician and are known to have or be suspected of having an inherited disorder of mast cells, in particular patients (and their relatives) with piebaldism, allergies, or anaphylaxis that is not caused by allergies. Design: * Study population will consist of up to 1000 participants in a 5-year period. One third of the study population will consist of patients; the other two thirds will consist of biological relatives. * Evaluation is limited to testing on blood specimens; no treatment will be provided. * Clinical and research laboratory evaluations of patients will include the following: * Clinical evaluation and previous laboratory tests as documented in outside medical records by health care providers. A standard questionnaire will also be administered at the time of subject enrollment. * Blood collection for clinical laboratory testing, tailored to each subject s clinical evaluation where appropriate (5 ml). * Blood collection for research laboratory testing, tailored to each subject s clinical evaluation including genetic screening and assessment of mast cell growth and functioning and storage of additional frozen blood specimens for future studies (up to an additional 30 ml). * Evaluations of blood relatives will include the following: * Clinical evaluation as documented from outside medical records by health care providers and administration of a standard questionnaire. * Blood collection where indicated for diagnostic or research purposes. * After 12 consecutive months on the study, results from initial evaluation will be reviewed. Subjects with findings deemed to be of continued interest will be contacted and invited to remain as active participants to this protocol for another year, provided that they renew their consent to participate.
Develop Registry tool
This protocol is a natural history study designed to evaluate subjects (and some family members) with suspected or identified genetic diseases of allergic inflammation or Immune Dysregulation. Patients determined by clinical history and outside evaluations to be of interest will be consented and enrolled into this study. Blood specimens, stored blood products and derivatives, saliva, hair, fingernail clippings, cord blood, umbilical cord, bone marrow, tissue biopsies and/or buccal swabs from such patients and/or their family members will be obtained for research studies related to understanding genetic and immunopathogenic bases of these diseases. Outside medical records may be obtained, and patient evaluations may be performed to correlate to research laboratory testing results.
Purpose: The study is a cross-sectional observational study designed to determine if eosinophilic gastritis (EG) results in gastric motility impairment. Hypothesis: Gastric dysfunction occurs in the natural history of EG but is underdiagnosed due, in part, to contraindications to the use of the standard meals used in gastric emptying studies.
The purpose of this study is to learn more about Eosinophilic Gastrointestinal Disorders (EGIDs). With this registry we hope to find out more about the symptoms that patients have during their treatment, the quality of life they have with the diagnosis, what the disease looks like throughout the different treatment methods, and if there is a connection between EGIDs and connective tissue disorders. The goal of this study is to be able to better understand EGIDs and use information gained from all the information collected on this study for more precise treatments in the future. We want to create a large collection of samples, called a biorepository, to learn the most about EGIDs as possible. When the samples are collected, which will occur at procedures directed by your child's doctor as part of their standard of care, they will be stored for an unlimited amount of time to perform experiments on these samples and to gather information about EGIDs
The purpose of this observational study is to find the best measures to define how well a person with eosinophilic disorder is doing. People with EoE, EoG, EoN and EoC normally undergo endoscopy and/or colonoscopy where cells are collected for microscopic analysis. Treatments are then decided based on how the cells look. We are aiming to compare different tissue components such as inflammatory cell types with clinical symptoms. We want to see if scores on standard questionnaires can give us an idea how well the person is doing.
The Eosinophilic Gastrointestinal Disorders (EGIDS) Registry is a longitudinal study that does not involve medical interventions, but serves as a record of demographics, characteristics of disease and treatment, utilization patterns, quality improvement measures and clinical outcomes. The database is proposed so that epidemiologic research can be performed and current and accurate data can be obtained regarding practice patterns, age and gender distributions, efficacy of treatment, clinical outcomes and changes in quality of life.
Background: - Food allergies are characterized by abnormal immune system responses to certain foods, such as peanuts, strawberries, and shellfish. Some individuals with these allergies have immediate allergic reactions on contact with the food in question and need immediate treatment to prevent severe complications. In contrast, eosinophil-associated gastrointestinal disorders are related disorders in which white blood cells in the intestinal tract react to certain foods, causing abdominal pain, nausea, and other digestion problems. Researchers are interested in studying these conditions to better understand how the immune system responds to food allergies. Objectives: * To examine how the immune system responds to food allergens. * To examine how certain white blood cells contribute to disease in individuals with food allergies and other inflammatory diseases. Eligibility: * Individuals between 18 and 65 years of age who have a history of (a) severe allergic reaction to peanuts (and have peanut-specific antibodies), (b) allergy or inflammatory disease, or (c) eosinophil-associated gastrointestinal disorder (with at least two documented food allergies). * Healthy volunteers between 18 and 65 years of age who have no known allergies or asthma. Design: * All participants will have a screening visit and a procedure visit. The procedure visit will take place within 30 to 60 days of the screening visit, and will take 3 to 4 hours depending on the procedure(s) done. * Participants will be screened with a physical examination and medical history, and will provide blood samples for testing. Participants with peanut or other allergies will have additional tests to determine their levels of sensitivity to certain foods. Participants with eosinophil-associated gastrointestinal disorder will provide stool samples for testing. * At the procedure visit, participants with peanut allergies and participants with other allergies will provide blood samples and have leukapherisis to collect white blood cells for examination. * At the procedure visit, healthy volunteers and participants with eosinophil-associated gastrointestinal disorder will provide blood samples and have leukapherisis to collect white blood cells for examination. In addition, some but not all of these participants will have a procedure called esophagogastroduodenoscopy (EGD), which will examine the esophagus, stomach, and small intestine. Participants who are scheduled to have EGD will be asked to fast for 6 hours before the procedure.
The purpose of this interventional study is to test and compare the effectiveness of two elimination diets-the 1-food elimination diet (1FED, milk only) and the 6-food elimination diet (6FED, milk, egg, wheat, soy, tree nut/peanuts, and fish/shellfish). The study will also test the effectiveness of swallowed glucocorticoid therapy in some of the study participants for whom diet therapy was not effective.
This study is researching an experimental drug called dupilumab. The study is focused on participants with active eosinophilic gastritis (EoG) with or without eosinophilic duodenitis (EoD). Participants with EoD only are not eligible for enrollment. EoG and EoD are uncommon, persistent, allergic/immune diseases in which eosinophils (a type of white blood cell) gather in large numbers in the stomach and small intestine and cause inflammation and damage. The aim of the study is to evaluate the effect of dupilumab on relieving EoG (with or without EoD) symptoms and reducing inflammation in the stomach and, if applicable, small intestine in adults and adolescents aged 12 years and older after at least 24 weeks (about 6 months) and up to 52 weeks (1 year) of treatment. The study is looking at several other research questions, including: * What side effects may happen from taking the study drug * How much study drug is in the blood at different times * Whether the body makes antibodies against the study drug (which could make the drug less effective or could lead to side effects)
To assess the frequency and nature of adverse events in infants fed a free amino acid based infant formula.
The purpose of this interventional study is to test and compare the effectiveness of two elimination diets-the 1-food elimination diet (1FED, milk only) and the 4-food elimination diet (4FED, milk, egg, wheat, and soy) for eosinophilic esophagitis (EoE). The study will also test the effectiveness of swallowed glucocorticoid therapy in some of the study participants for whom diet therapy was not effective.
This is a Phase 3, multicenter, randomized, double-blind, placebo-controlled study to evaluate the efficacy, safety, tolerability, and pharmacodynamic effect of subcutaneous lirentelimab (AK002), given monthly for 6 doses, in subjects with moderate to severe Eosinophilic Gastritis and/or Eosinophilic Duodenitis who have an inadequate response with, lost response to, or were intolerant to standard therapies.
This is a Phase 3, multi-center, randomized, double-blind, placebo-controlled study to assess the efficacy and safety of lirentelimab (AK002) given monthly for 6 doses in adult patients with active eosinophilic duodenitis. Subjects who complete the randomized, double-blind, placebo-controlled treatment may have the option to receive 6 doses of open-label lirentelimab (AK002) through the OLE Period of the study.
This is a Phase 3, multi-center, randomized, double-blind, placebo-controlled study to assess the efficacy and safety of lirentelimab (AK002), given monthly for 6 doses, in patients with moderately to severely active Eosinophilic Gastritis and/or Eosinophilic Duodenitis (formerly referred to as Eosinophilic Gastroenteritis) who have an inadequate response with, lost response to, or were intolerant to standard therapies
This is a Phase 2, open-label, extension study to assess the safety and tolerability of AK002, given monthly for up to 26 doses.
This is a Phase 2, double-blind, randomized, placebo-controlled study to assess the effects of AK002, given monthly for 4 doses. It is hypothesized that AK002 is more effective than placebo control (alternative hypothesis) in reducing the number of eosinophils per high power field (HPF) in gastric and/or duodenal biopsies before and after receiving AK002 or placebo versus no difference between AK002 and placebo control (null hypothesis).
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.
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).
Background: - Eosinophils are white blood cells that help fight infections. High eosinophil levels can damage people s organs, causing hypereosinophilic syndrome (HES). Researchers want to study if the drug benralizumab can help people with HES. Objective: - To test if benralizumab can safely decrease eosinophils in people with HES. Eligibility: - Adults age 18-65 who have been on stable HES therapy for at least 1 month but still have symptoms and high eosinophil levels. Design: * Participants will be screened with medical history, physical exam, and urine and blood tests. They will take simple heart and lung tests. * Participants will also have a bone marrow biopsy. A numbing medicine is injected into the outer covering of the bone. Then a needle is inserted into the bone. A fast suction movement takes bone marrow cells. * Phase 1: Participants will randomly receive either the study drug or placebo as an injection. * They will have daily visits for the next 3 days, then 4 weekly visits, and then 4 biweekly visits. Each time, they will have medical history, physical exam, blood tests, and a check of side effects. * They will receive another dose of the study drug or placebo at 1 month and 2 months after the first injection. * Phase 2 repeats the Phase 1 schedule. All participants will receive the study drug. * At 1 visit, participants will also receive a vaccine. At 4 visits, they will repeat the heart and lung tests. They will also have one other bone marrow biopsy. * After week 24, participants will receive the study drug either 6 times over 6 months or twice over 6 months.
The purpose of this study is to evaluate the relationship between fractionated exhaled nitric oxide, peripheral eosinophils, and plasma citrulline and ß-alanine in patients with eosinophilic esophagitis (EoE) compared to those without EoE. The hypothesis is that a combination of elevated fractional exhaled nitric oxide, increased peripheral eosinophils, and elevated plasma citrulline and ß-alanine is associated with active EoE.
The purpose of the study is to evaluate of the relationships between fractionated exhaled nitric oxide, disease activity, and symptom severity in patients with eosinophilic esophagitis compared to those without eosinophilic esophagitis.
The investigators would like to determine if there are patients with PPI responsive Eosinophilic Esophagitis Infiltration that have significant loss of esophageal distensibility suggestive of esophageal fibrosis typical of classic Eosniophilic Esophagitis. If this group of patients exists, the investigators would like to determine if they have the typical endoscopic features of EoE rather than those of GERD.
There is currently no reliable, noninvasive biomarker for eosinophilic esophagitis (EoE), a chronic allergic diseases characterized by significant infiltration of eosinophils in the esophagus. Because eosinophils release nitric oxide, levels of exhaled nitric oxide (FeNO) are used routinely for guiding treatment in subsets of patients with asthma. FeNO levels are also elevated in immunological diseases that do not involve the airways. The investigators hypothesize that patients with EoE have elevated nitric oxide concentration in their exhaled breath and that changes in FeNO levels could be used to measure disease activity. The objective of this study is to determine the feasibility of using FeNO as a noninvasive surrogate marker for EoE disease activity. The investigators propose to measure serial exhaled nitric oxide (FeNO) levels on a group of patients with confirmed EoE, before, during and after the course of topical corticosteroid therapy to determine whether the level declines from pre-treatment level in individual patients.