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

AstraZeneca logo

AstraZeneca

Status and phase

Completed
Phase 3

Conditions

Eosinophilic Gastroenteritis
Eosinophilic Gastritis

Treatments

Biological: Placebo
Biological: Benralizumab

Study type

Interventional

Funder types

Industry

Identifiers

NCT05251909
D3258C00001
2021-000085-14 (EudraCT Number)

Details and patient eligibility

About

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.

Enrollment

12 patients

Sex

All

Ages

12 to 130 years old

Volunteers

No Healthy Volunteers

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.

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

Triple Blind

12 participants in 2 patient groups, including a placebo group

Benralizumab
Experimental group
Description:
This arm is a subcutaneous dose of Benralizumab
Treatment:
Biological: Benralizumab
Placebo
Placebo Comparator group
Description:
This arm is a subcutaneous dose of Placebo
Treatment:
Biological: Placebo

Trial contacts and locations

20

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Data sourced from clinicaltrials.gov

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