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.
This is a longitudinal observational study in which individuals (males and females 3 years of age and greater) with EoE, EoG, EoN and EoC will be followed over the course of time to see if standard questionnaires can give us an idea of how well the person is doing. Participants undergoing standard of care (normal, routine care) endoscopies and/or colonoscopies will have biopsies (small pieces of tissue from the GI tract normally collected during these procedures) collected and used for the research study. Participants will also complete questionnaires related to their symptoms and quality of life. Participants will be followed over the course of time and asked to complete the questionnaires at various time points throughout the study.
Study Type
OBSERVATIONAL
Enrollment
1,350
Mayo Clinic Hospital
Phoenix, Arizona, United States
RECRUITINGArkansas Children's Research Institute
Rogers, Arkansas, United States
RECRUITINGRady Children's Hospital
San Diego, California, United States
RECRUITINGUniversity of Colorado Denver
Aurora, Colorado, United States
RECRUITINGChildren's Hospital Colorado
Denver, Colorado, United States
RECRUITINGNorthwestern University
Chicago, Illinois, United States
RECRUITINGAnn and Robert H. Lurie Children's Hospital of Chicago
Chicago, Illinois, United States
RECRUITINGRiley Children's Hospital
Indianapolis, Indiana, United States
COMPLETEDNational Institutes of Health (NIH)
Bethesda, Maryland, United States
RECRUITINGTufts University
Boston, Massachusetts, United States
COMPLETED...and 9 more locations
Mucosal eosinophilia (eos/hpf)
Mucosal eosinophil levels are measured as eosinophils per high power field (eos/hpf). The primary outcome measure is to determine the change in mucosal eosinophil level (eos/hpf) and to determine if the change in mucosal eosinophil level in eos/hpf correlates with the change in scores on clinical outcome measure metrics.
Time frame: Duration of funding, at least 10 years
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