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Updated May 2026 · ClinicalTrials.gov

RECRUITINGPhase 2INTERVENTIONAL

Study of DONQ52 in Active Celiac Disease

A Phase II, Randomized, Double-blind, Placebo-controlled, Multicenter Study to Evaluate The Efficacy and Safety of DONQ52 in Active Celiac Disease Patients Who Have Duodenal Mucosal Damage and Persistent Symptoms Despite Attempting A Gluten-free Diet (DAISY STUDY)

Study of DONQ52 in Active Celiac Disease (NCT07239336) is a Phase 2 interventional studying Celiac Disease, sponsored by Chugai Pharmaceutical. RECRUITING as of the most recent ClinicalTrials.gov update. Talk to your doctor before contacting the trial site.

Important: This information is not medical advice. Talk to your doctor about whether a clinical trial is right for you.

About This Trial

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.

What Stage of Research Is This?

Phase 2 trials evaluate whether a treatment actually works against Celiac Disease and continue monitoring side effects. Phase 2 enrolls larger groups (typically 100–300 patients) and produces the first real efficacy signal. A successful Phase 2 readout is what unlocks the much larger Phase 3 confirmatory trials needed for FDA approval.

This trial is currently recruiting participants. The sponsor has registered the study with ClinicalTrials.gov as actively enrolling, which means new applicants who meet the eligibility criteria can be considered for screening. Trial status can change between updates — confirm current recruiting status with the study contact before traveling for a screening visit.

Target enrollment of 92 participants puts this in the typical range for a Phase 2-style efficacy study or a moderate Phase 3 trial in a focused Celiac Disease subpopulation. At this scale, the study has enough statistical power to detect a clear treatment effect but is not the largest cohort in the field.

Who May Be Eligible (Plain English)

Who May Qualify: - 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 Who Should NOT Join This Trial: - 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). ...See full criteria on ClinicalTrials.gov Always talk to your doctor about whether this trial is right for you.

These are translations of the protocol\'s inclusion and exclusion criteria, simplified for patients and caregivers. The original clinical text appears below. Eligibility is ultimately confirmed by the trial site\'s screening process — this summary is a starting point for a conversation with your doctor, not a final determination.

Original Eligibility Criteria

View original clinical language
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.

Treatments Being Tested

DRUG

Placebo DONQ52

Placebo DONQ52 subcutaneous injection

DIETARY_SUPPLEMENT

Simulated Inadvertent Gluten Exposure (SIGE) capsule

SIGE gluten capsules orally

DRUG

DONQ52

DONQ52 subcutaneous injection

DIETARY_SUPPLEMENT

Simulated Inadvertent Gluten Exposure (SIGE) capsule

SIGE gluten capsules orally

Locations (20)

Trial sites listed on ClinicalTrials.gov for this study. Site activation status can vary — confirm with the specific site before traveling for a screening visit.

Pinnacle Research Group, LLC
Anniston, Alabama, United States
East View Medical Research
Mobile, Alabama, United States
Chandler Clinical Trials
Chandler, Arizona, United States
Research Solutions of Arizona, PC
Litchfield, Arizona, United States
One of a Kind Clinical Research Center LLC
Scottsdale, Arizona, United States
Scottsdale Clinical Trials
Scottsdale, Arizona, United States
GMC Clinical Research, LLC
Folsom, California, United States
Velocity Clinical Research, Gardena
Gardena, California, United States
Om Research LLC
Lancaster, California, United States
Asthma and Allergy Associates, PC
Colorado Springs, Colorado, United States
Associates in Gastroenterology, PC
Colorado Springs, Colorado, United States
Mountain View Clinical Research, Inc.
Denver, Colorado, United States
Stamford Therapeutics Consortium
Stamford, Connecticut, United States
Novum Clinical Research
Clermont, Florida, United States
Global Life Research Network
Miami, Florida, United States
Wellness Clinical Research
Miami Lakes, Florida, United States
Ocala GI Research
Ocala, Florida, United States
Guardian Angel Research Center
Tampa, Florida, United States
Portland Gastroenterology Center
Portland, Maine, United States
Oasis Clinical Research
Las Vegas, Nevada, United States

How to Talk to Your Doctor About This Trial

Bring the printable summary of this trial — including the NCT ID (NCT07239336), the sponsor (Chugai Pharmaceutical), and the key eligibility criteria — to your next appointment. Your doctor can review the inclusion and exclusion criteria against your medical history, lab values, and current treatments to assess whether you are likely to qualify. They can also help you weigh whether trial participation makes sense alongside your existing care plan.

Useful questions to walk through together: What does the trial protocol require beyond standard care? How long is the active treatment phase, and how long is follow-up? Are there study visits at sites I can reach? Who pays for the trial-specific procedures, and who pays for standard-of-care portions? See our 25 questions to ask about clinical trials guide for a more complete checklist.

Authoritative Sources

The official record for this trial lives on ClinicalTrials.gov — the federal registry maintained by the National Library of Medicine at NIH. For background on how this trial fits into the FDA approval pathway, see the FDA drug approval process. For oncology-specific guidance for patients considering trials, the National Cancer Institute publishes patient-oriented overviews. International trial registries are aggregated by the WHO ICTRP.

Frequently Asked Questions

What is the NCT07239336 clinical trial studying?

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. The full protocol is registered on ClinicalTrials.gov and includes the primary outcome measures, eligibility criteria, and study endpoints.

Who can participate in NCT07239336?

Eligibility for this trial depends on the specific inclusion and exclusion criteria set by the sponsor. The plain-English summary above translates the most important criteria into accessible language; the official clinical text is preserved in the collapsible section underneath. Whether you fit any specific trial is a medical decision your doctor needs to confirm — bring the trial information to your treating physician for a full review against your medical history.

How do I contact the trial site for NCT07239336?

Contact information registered with ClinicalTrials.gov is shown in the sidebar of this page. Before reaching out, confirm with your treating physician that this trial is appropriate for your situation. The trial site will then walk you through the screening process to determine final eligibility.

Is participating in a clinical trial safe?

Clinical trials in the United States are regulated by the FDA and overseen by Institutional Review Boards (IRBs) that review the protocol for safety. Risk varies by trial — Phase 1 studies test new treatments in humans for the first time, while Phase 3 trials use treatments that have already passed earlier safety screening. The informed consent document for any specific trial details the known risks and what to expect. Discuss those risks with your physician before deciding whether to participate.

Where can I verify the data on this page?

Every detail on this page comes directly from the ClinicalTrials.gov API. Click "View on ClinicalTrials.gov" in the sidebar to see the official, unmodified record. The federal record is always authoritative; this page is a structured presentation with a plain-English eligibility translation. For background on how clinical trials are regulated, see the FDA drug approval process documentation.

How This Page Is Built

Every field on this page is pulled directly from the ClinicalTrials.gov API v2 — no estimates, no proxies. The plain-English eligibility translation is generated from the original protocol text and reviewed for fidelity to the underlying clinical criteria. The original clinical text remains visible in the collapsible section above so users and clinicians can verify the translation. Read the full methodology for the data pipeline and known limitations.

Source: ClinicalTrials.gov API v2 record for NCT07239336. Maintained by the National Library of Medicine at NIH. Public domain. Cite as: "TrialFinderData. NCT07239336. Data: ClinicalTrials.gov."

Medical disclaimer: This page is informational, not medical advice. Talk to your doctor about whether a clinical trial is right for you.

Last updated 2026-05-08 · Data from ClinicalTrials.gov.