Study of DONQ52 in Active Celiac Disease

NCT ID: NCT07239336

Last Updated: 2026-01-08

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

PHASE2

Total Enrollment

92 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-12-16

Study Completion Date

2027-12-15

Brief Summary

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The main aim is to see how DONQ52 works to improve small intestinal damage and reduce celiac-related symptoms due to gluten exposure, in participants with celiac disease (CeD) attempting to maintain a gluten-free diet (GFD) in treated participants versus placebo controls.

Detailed Description

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Conditions

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Celiac Disease

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

DOUBLE

Participants Investigators

Study Groups

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Placebo + SIGE Gluten capsule

Placebo subcutaneous (SC) injection as per protocol + SIGE Gluten capsule orally

Group Type PLACEBO_COMPARATOR

Placebo DONQ52

Intervention Type DRUG

Placebo DONQ52 subcutaneous injection

Simulated Inadvertent Gluten Exposure (SIGE) capsule

Intervention Type DIETARY_SUPPLEMENT

SIGE gluten capsules orally

DONQ52 + SIGE Gluten capsule

DONQ52 subcutaneous (SC) injection as per protocol + SIGE Gluten capsule orally

Group Type EXPERIMENTAL

DONQ52

Intervention Type DRUG

DONQ52 subcutaneous injection

Simulated Inadvertent Gluten Exposure (SIGE) capsule

Intervention Type DIETARY_SUPPLEMENT

SIGE gluten capsules orally

Interventions

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Placebo DONQ52

Placebo DONQ52 subcutaneous injection

Intervention Type DRUG

Simulated Inadvertent Gluten Exposure (SIGE) capsule

SIGE gluten capsules orally

Intervention Type DIETARY_SUPPLEMENT

DONQ52

DONQ52 subcutaneous injection

Intervention Type DRUG

Simulated Inadvertent Gluten Exposure (SIGE) capsule

SIGE gluten capsules orally

Intervention Type DIETARY_SUPPLEMENT

Eligibility Criteria

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Inclusion Criteria

* Body mass index (BMI) of 18 to 40 (kg/m2) at screening.
* Willingness to ingest a gluten-free product and Simulated Inadvertent Gluten Exposure (SIGE) products as per the study protocol.
* History of medically diagnosed, and adequately documented (i.e., included in the participant's medical records), CeD
* Attempting a GFD for at least 12 months prior to the screening visit.

\- The participants should be instructed not to alter dietary habits including a GFD during the study period.
* Valid results from central testing of blood documenting a positive result for the HLA DQ2.5 genotype (HLA-DQA1\*05 and HLA-DQB1\*02) (homozygous or heterozygous).
* Experienced at least 2 gluten-related symptom events (i.e., 2 different gluten-related symptoms which are diarrhea, abdominal pain, bloating, nausea, tiredness or 1 gluten-related symptom occurred twice) within a month before the screening.
* Willingness to undergo 2 on-study upper gastrointestinal endoscopies with duodenal biopsies.
* Presence of ongoing duodenal mucosal damage defined as Vh:Cd of 2.5 or less

Exclusion Criteria

* Participants with documented history (i.e., included in the participant's medical records) of medically diagnosed Refractory Celiac Disease (RCD) or suspected RCD by the investigator.
* History of IgE-mediated reactions to wheat, barley, rye, or other ingredients in gluten-free and SIGE products used in this study (i.e., methylcellulose, and gelatin).
* History of cancer, including hematological malignancy and solid tumors, within 5 years prior to the screening visit, or history of T cell lymphoma or B cell lymphoma ever.
* History of hypersensitivity reactions including anaphylaxis to a biological medical product or any of the excipients.
* Participants who carry the HLA-DQ8 (HLA-DQA1\*03 and DQB1\*0302) genotype (homozygous or heterozygous).
* Any other chronic, active gastrointestinal disease (e.g., inflammatory bowel disease, microscopic colitis, eosinophilic esophagitis, peptic ulcer, gastroesophageal reflux disease, functional dyspepsia, or irritable bowel syndrome) that might in the investigator's opinion, interfere with the assessment of GI symptoms or small intestinal histology.
* Helicobacter pylori tests that indicate current infection.
* Positive either human immunodeficiency virus (HIV) antigen or antibody test at screening.
* Positive hepatitis B surface antigen (HBsAg) test or total hepatitis B core (HBc) antibody test at screening.
* Positive hepatitis C virus (HCV) antibody test at screening, except in participants who have negative results for HCV ribonucleic acid (RNA) test at screening.
* Positive for QuantiFERON-TB Gold test at screening that indicates active tuberculosis (TB) at screening.
Minimum Eligible Age

18 Years

Maximum Eligible Age

75 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Chugai Pharmaceutical

INDUSTRY

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Principal Investigators

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Chugai Pharmaceutical Co., Ltd.

Role: STUDY_DIRECTOR

[email protected]

Locations

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Stamford Therapeutics Consortium

Stamford, Connecticut, United States

Site Status RECRUITING

Novum Clinical Research

Clermont, Florida, United States

Site Status RECRUITING

Guardian Angel Research Center

Tampa, Florida, United States

Site Status RECRUITING

Countries

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United States

Central Contacts

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Clinical trials information

Role: CONTACT

only use Email

Other Identifiers

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DQB104CT

Identifier Type: -

Identifier Source: org_study_id

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