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Active, not recruiting Phase 2 Interventional

A Study to Learn How Well Dupilumab Works in Adult and Adolescent Participants With Eosinophilic Gastritis With or Without Eosinophilic Duodenitis and the Side Effects it May Have

ClinicalTrials.gov ID: NCT05831176

Public ClinicalTrials.gov record NCT05831176. Field values are reproduced from the official study page; the official ClinicalTrials.gov record remains the source of truth for eligibility, enrollment, and contact information.

ClinicalTrials.gov public records Last synced Oct 22, 2026, 1:33 AM EDT

Data is sourced from official ClinicalTrials.gov public API records. Always review the official ClinicalTrials.gov record for the latest information.

Official title

A Phase 2, 2-Part, Open-Label, Single-Arm Study to Investigate the Efficacy and Safety of Dupilumab in Adult and Adolescent Patients With Eosinophilic Gastritis With or Without Eosinophilic Duodenitis

Brief summary

Reproduced verbatim from the official ClinicalTrials.gov record. Not medical advice.

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)

Study identification

NCT ID
NCT05831176
Recruitment status
Active, not recruiting
Study type
Interventional
Phase
Phase 2
Lead sponsor
Regeneron Pharmaceuticals
Industry
Enrollment
22 participants

Conditions and interventions

Eligibility (public fields only)

Age range
12 Years and older
Sex
All
Healthy volunteers
Healthy volunteers not accepted

This page does not interpret eligibility. Detailed inclusion and exclusion criteria are on the official ClinicalTrials.gov record.

Study timeline

Start date
May 3, 2023 (Actual)
Primary completion
Feb 23, 2026 (Actual)
Completion
Nov 25, 2026 (Estimated)
Last update posted
Jul 1, 2026

2023 – 2026

United States locations

U.S. sites
36
U.S. states
22
U.S. cities
34
Facility City State ZIP Site status
Phoenix Childrens Hospital Phoenix Arizona 85016 —
Om Research LLC Apple Valley California 92307 —
Scripps Clinic La Jolla California 92037 —
Om Research LLC Lancaster California 93534 —
University of California - Los Angeles (UCLA) Los Angeles California 90024 —
University of Southern California Keck School of Medicine Los Angeles California 90033 —
GastroIntestinal BioSciences Los Angeles California 90067 —
United Medical Doctors Murrieta California 92563 —
Ucsf Medical Center (Benioff Childrens Hospital) San Francisco California 94158 —
University of Colorado Anschutz Health Science Building (AHSB) CU Research Pharmacy Aurora Colorado 80045 —
Connecticut Clinical Research Institute Bristol Connecticut 06010 —
UConn Health Farmington Connecticut 06030 —
Encore Borland-Groover Clinical Research Jacksonville Florida 32256 —
Northwestern University Chicago Illinois 60611 —
University Of Kansas Kansas City Kansas 66103 —
Beth Israel Deaconess Medical Center (BIDMC) Harvard Medical School Boston Massachusetts 02215 —
University of Michigan Ann Arbor Michigan 48109 —
MNGI Digestive Health P.A. Plymouth Minnesota 55446 —
Mayo Clinic Hospital Rochester Rochester Minnesota 55905 —
Advanced Research Institute Reno Nevada 89511 —
Dartmouth Hitchcock Medical Center Lebanon New Hampshire 03756 —
Northwell Health Great Neck New York 11021 —
Icahn School of Medicine at Mount Sinai (ISMMS) - The Mount Sinai Hospital (MSH) New York New York 10029 —
University of North Carolina at Chapel Hill Chapel Hill North Carolina 27599 —
Charlotte Gastroenterology & Hepatology, PLLC Charlotte North Carolina 28207 —
Duke University Durham North Carolina 27710 —
ESI Medical Research, PLLC Kinston North Carolina 28513 —
University of Cincinnati Medical Center-Children's Hospital Medical Center Cincinnati Ohio 45229 —
Ohio State University Medical Center Columbus Ohio 43210 —
Allergy, Asthma and Clinical Research Center Oklahoma City Oklahoma 73120 —
The Oregon Clinic - Gastroenterology East Portland Oregon 97220 —
University of Pennsylvania Philadelphia Pennsylvania 19104 —
TDDC dba GI Alliance Research Mansfield Texas 76063 —
University of Utah Salt Lake City Utah 84132 —
Seattle Children's Home Health Company Seattle Washington 98105 —
Froedtert Hospital Milwaukee Wisconsin 53226 —

Site contact phone numbers, emails, and investigator names are intentionally not displayed here. Open the official ClinicalTrials.gov record for site contact information.

Non-U.S. locations

This page focuses on the U.S. directory. The official record also lists 17 non-U.S. sites.

About this trial record page

What this page shows
Public field values for ClinicalTrials.gov record NCT05831176, including study identification, conditions, interventions, eligibility (age, sex, healthy volunteer), timeline, and U.S. site list.
What this page does not do
No medical advice, eligibility judgments, treatment recommendations, study quality scoring, or AI-generated medical summaries. No site contact phone numbers, emails, or investigator names.
Where the data comes from
Sourced from the official ClinicalTrials.gov public API. The official record is the source of truth.
Last refresh
Last update posted Jul 1, 2026 · Synced Oct 22, 2026

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Open the official record

The complete public registry record, listed eligibility criteria, and available contact information for NCT05831176 live on ClinicalTrials.gov.

View official ClinicalTrials.gov record →