Efficacy and Safety of Benralizumab in Patients With Eosinophilic Gastritis and/or Gastroenteritis (The HUDSON GI Study)

NCT ID: NCT05251909

Last Updated: 2025-07-14

Study Results

Results available

Outcome measurements, participant flow, baseline characteristics, and adverse events have been published for this study.

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Basic Information

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Recruitment Status

TERMINATED

Clinical Phase

PHASE3

Total Enrollment

12 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-01-18

Study Completion Date

2024-02-13

Brief Summary

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This is a 3-part study. Part A is randomized, double-blinded, placebo-controlled and includes patients with eosinophilic gastritis and/or duodenal-only disease. After completing Part A, participants can continue to Part C - open-label benralizumab treatment period. Following the decision to close enrollment, patients in both Part A and Part C will be given the option to proceed to 6-months of open-label benralizumab treatment in Part D.

Detailed Description

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Conditions

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Eosinophilic Gastritis Eosinophilic Gastroenteritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

TRIPLE

Participants Caregivers Investigators
This is a parallel-group efficacy and safety study with 2 arms that are participant and investigator blinded, with an open-label extension.

Study Groups

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Benralizumab

This arm is a subcutaneous dose of Benralizumab

Group Type EXPERIMENTAL

Benralizumab

Intervention Type BIOLOGICAL

Benralizumab is a humanized, afucosylated, monoclonal antibody that binds specifically to the IL-5Rα on the target cell and thus directly depletes eosinophils through antibody-dependent cell-mediated cytotoxicity. Benralizumab has been widely approved for treatment of asthma.

Placebo

This arm is a subcutaneous dose of Placebo

Group Type PLACEBO_COMPARATOR

Placebo

Intervention Type BIOLOGICAL

Placebo will be injected as a comparator to injection with Benralizumab to examine effect on both the signs and symptoms of EG/EGE and the underlying eosinophilic inflammation, with dual primary outcome variables

Interventions

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Benralizumab

Benralizumab is a humanized, afucosylated, monoclonal antibody that binds specifically to the IL-5Rα on the target cell and thus directly depletes eosinophils through antibody-dependent cell-mediated cytotoxicity. Benralizumab has been widely approved for treatment of asthma.

Intervention Type BIOLOGICAL

Placebo

Placebo will be injected as a comparator to injection with Benralizumab to examine effect on both the signs and symptoms of EG/EGE and the underlying eosinophilic inflammation, with dual primary outcome variables

Intervention Type BIOLOGICAL

Other Intervention Names

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Fasenra

Eligibility Criteria

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Inclusion Criteria

* Aged \>= 12 years of age at the time of signing the ICF or informed consent or assent form.
* Confirmed diagnosis of EG/EGE for at least 3 months prior to screening.
* Baseline Eosinophilic gastritis, with or without duodenitis, or eosinophilic duodenitis alone confirmed by biopsy with a gastric count of ≥30 eosinophils/hpf in at least 5 hpfs and/or duodenal eosinophil count ≥30 eosinophils/hpf in at least 3 hpfs without any other cause for the gastrointestinal eosinophilia.
* Symptoms including at least moderate abdominal pain, nausea, bloating, early satiety, and/or loss of appetite
* Must be adherent to daily PRO assessments including at least 8 of 14 symptom assessments in the 14 days prior to randomization
* If on background medications for EG/EGE, the medications should be stable at least 4 weeks prior to the run-in period.
* Willing and able to comply with all study procedures and visit schedule including follow-up visits
* Women of childbearing potential must agree to use a highly effective form of birth control (confirmed by the Investigator) from randomization throughout the study duration and within 12 weeks after last dose if IP.

Exclusion Criteria

* Other gastrointestinal disorders such as active Helicobacter pylori infection, history of achalasia, esophageal varices, Crohn's disease, ulcerative colitis, inflammatory bowel disease, or celiac disease.
* Hypereosinophilic syndrome or eosinophilic granulomatosis with polyangiitis.
* Current malignancy, or history of malignancy, except for patients who have had basal cell, localized squamous cell carcinoma of the skin, or in situ carcinoma of the cervix are eligible provided that the patient is in remission and curative therapy was completed at least 12 months prior to the date of informed consent.
* History of anaphylaxis to any biologic therapy or vaccine.
* Current active liver disease.
* Helminth parasitic infection diagnosed within 24 weeks prior to the date informed that has not been treated with or has failed to respond to standard of care therapy.
* Known immunodeficiency disorder including testing positive for HIV.
* Concomitant use of immunosuppressive medication.
* Receipt of live attenuated vaccines 30 days prior to date of informed consent or assent.
* Receipt of inactive vaccines within 7 days of informed consent or assent.
* Initiation or change of a food-elimination diet regimen or re-introduction of a previously eliminated food group from 6 weeks prior to start of the run-in period and unable or unwilling to remain on a stable diet until the completion of Part A and C.
* Currently pregnant or breast-feeding.
Minimum Eligible Age

12 Years

Maximum Eligible Age

130 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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AstraZeneca

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Marc E. Rothenberg, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Cincinnati Children's Hospital Medical Center 3333 Burnet Ave, Cincinnati Ohio 45229, United States

Locations

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Research Site

Chicago, Illinois, United States

Site Status

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Boston, Massachusetts, United States

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Rochester, Minnesota, United States

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Chapel Hill, North Carolina, United States

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Philadelphia, Pennsylvania, United States

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Salt Lake City, Utah, United States

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Salt Lake City, Utah, United States

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São Paulo, , Brazil

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Milan, , Italy

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Padua, , Italy

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Pisa, , Italy

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Bunkyō City, , Japan

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Maebashi, , Japan

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Ogaki-shi, , Japan

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Shinjuku-ku, , Japan

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Amsterdam, , Netherlands

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Staszów, , Poland

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Seville, , Spain

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Kyiv, , Ukraine

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Hanoi, , Vietnam

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Countries

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United States Brazil Italy Japan Netherlands Poland Spain Ukraine Vietnam

Provided Documents

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Document Type: Study Protocol

View Document

Document Type: Statistical Analysis Plan

View Document

Other Identifiers

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2021-000085-14

Identifier Type: EUDRACT_NUMBER

Identifier Source: secondary_id

D3258C00001

Identifier Type: -

Identifier Source: org_study_id

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