A Study to Determine the Microbial Population of the Intestines in Patients with Active or Treated Inactive Eosinophilic Esophagitis


About this study

The purpose of this study is to collect stool samples and determine the intestine microbe environment in patients who have active or treated inactive eosinophilic esophagitis.

Participation eligibility

Participant eligibility includes age, gender, type and stage of disease, and previous treatments or health concerns. Guidelines differ from study to study, and identify who can or cannot participate. There is no guarantee that every individual who qualifies and wants to participate in a trial will be enrolled. Contact the study team to discuss study eligibility and potential participation.

Inclusion Criteria

  • Clinical diagnosis of Eosinophilic Esophagitis
  • Age 18-65
  • Has clinically indicated endoscopy/ biopsies for Eosinophilic Esophagitis
  • Healthy volunteers of age and sex matched controls from a biobank

Exclusion Criteria

  • Prior history of abdominal surgeries (except appendectomy and cholecystectomy)
  • Known diagnosis of inflammatory bowel disease, microscopic colitis, celiac disease, atopic dermatitis, active asthma or other inflammatory conditions
  • Antibiotic use within the past 4 weeks (they can be enrolled after a four week washout period and subsequent use during the 6 month study duration does not exclude them)
  • Bowel preparation for colonoscopy within the past week
  • Vulnerable adults
  • Age ≥ 66


Participating Mayo Clinic locations

Study statuses change often. Please contact the study team for the most up-to-date information regarding possible participation.

Mayo Clinic Location Status

Rochester, Minn.

Mayo Clinic principal investigator

David Katzka, M.D.

Closed for enrollment

More information


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