Omics-driven Research on the Gut-Oral Microbiome, Metabolome, Lifestyle, and Clinical Integration in Korean Inflammatory Bowel Disease

NCT ID: NCT06124833

Last Updated: 2025-08-14

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

Total Enrollment

900 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-10-04

Study Completion Date

2028-08-01

Brief Summary

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The inflammatory bowel disease (IBD) is a condition that afflects approximately 5 million people worldwide, with 1.4 million in the US and 2.2 million in Europe. By 2030, it is predicted that up to 1% of the entire Western population will have this disease. Notably, IBD encompasses conditions like Crohn's disease (CD) and Ulcerative colitis (UC). The emergence of this disease in non-Western countries is attributed to the rapid urbanization and industrialization which has led to the adoption of Westernized diets, an increase in the use of antibiotics early in life, and air pollution. These factors are suspected to induce changes in the gut microbiome, contributing to the rise of IBD. However, as an immune-mediated chronic intestinal disease, it is a multifactorial condition triggered by genetic mutations, gut microbial features, and environmental factors. Despite numerous studies, the exact causes remain insufficiently understood, emphasizing the importance of research and development to significantly benefit the health of the rapidly increasing patients. The study aims to construct a multi-omics analysis platform, including gut microbiome analysis, using biosamples collected from Korean patients with inflammatory bowel disease (IBD) and their families. Through this platform, comparative clinical research will be conducted to elucidate the pathophysiology of the disease and develop potential biomarkers.

Detailed Description

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This study aims to construct a multi-omics analysis platform using biosamples collected from patients with inflammatory bowel diseases (IBD) and their families. Through this platform, comparative clinical research will be performed to elucidate the pathophysiology of the disease and develop potential biomarkers. The specific research objectives are as follows:

1. To identify clinical risk factors, genotype-genome variations, microbiome, and metabolomic markers that can predict high-risk groups prone to poor therapeutic outcomes and complications.
2. To elucidate differences in genotype, gut microbiome distribution, and metabolomics between non-responders to biological agents and small molecule drugs versus those with good therapeutic responses. Using this information, the aim is to develop multi-omics biomarkers that can predict responders and non-responders.
3. To develop a multi-omics biomarker-based algorithm that can prioritize the choice of various biological agents or small molecule drugs for individual patients.
4. To construct guidelines for precision treatment by identifying multi-omics markers associated with the onset of IBD, disease exacerbation, and complications and by clarifying the role of multi-omics in the pathophysiological mechanism.
5. Using familial IBD patients and family control groups, the study aims to elucidate environmental and genetic factors associated with the onset of IBD.
6. By comparing with the data of healthy intestines (non-blood-related disease control group), the role of gut microbiota in the pathogenesis of IBD and associated diseases in Koreans will be clarified.
7. By comparing with data from other target disease patients (e.g., AS, HIV), the role of gut microbiota in the onset of immune-mediated inflammatory diseases and associated conditions will be elucidated.
8. An integrated analysis of prior genomic data, current project genomic data (from the gut, oral-respiratory, skin, urogenital tracts), other domestic and international cohorts, and overseas genomic data will clarify regional and ethnic differences and roles of gut microbiota in the pathogenesis of IBD and associated diseases in Koreans.
9. To elucidate the interrelationship between human host genetic traits, microbiome, and environmental influences in the pathogenesis of IBD.

Conditions

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Inflammatory Bowel Disease (IBD)

Study Design

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Observational Model Type

COHORT

Study Time Perspective

PROSPECTIVE

Study Groups

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Newly Diagnosed Cohort

Patients who have been diagnosed with inflammatory bowel disease (IBD, including Crohn's disease and ulcerative colitis) for the first time within the last 6 months prior to study enrollment.

No interventions assigned to this group

Disease Progression Cohort

Patients who were previously diagnosed with IBD and have been followed for over a year to understand disease progression and prognosis.

No interventions assigned to this group

Drug Cohort

Patients with IBD who, during their tracking observations, begin using biological agents and small molecule drugs for the first time.

No interventions assigned to this group

Familial IBD cohort

Cases where there are 2 or more diagnosed IBD patients among the patient's first-degree relatives (≥ 2 IBD-affected First Degree Relatives, FDR).

No interventions assigned to this group

Family Control Group

First-degree blood relatives of the patient who have never been diagnosed with IBD up to the point of study enrollment and who reside with the patient.

No interventions assigned to this group

Eligibility Criteria

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Inclusion Criteria

1. Korean patients with inflammatory bowel disease (including Crohn's disease and ulcerative colitis) aged between 13 and 85 years (at the time of participant consent).
2. First-degree blood relatives of the patient, aged between 13 and 85, who have never been diagnosed with IBD and reside with the patient (Family Control Group).
3. Participants who have received a detailed explanation about this clinical trial, fully understand it, have voluntarily decided to participate, and have given written consent to comply with the precautions.

Exclusion Criteria

* For IBD patients

1\. Indeterminate colitis.
* For family control group

1. Individuals with a history of using medications listed in Appendix 13 (Family Control Group Medication History) within a pre-specified period before the microbiome collection date.
2. Individuals who have been vaccinated within the last month (4 weeks) prior to the microbiome collection date.
3. Individuals who have applied topical antibiotics or topical steroids to the face, scalp, neck, or arms, forearms, hands within 24 hours prior to the microbiome collection date.
4. Individuals who have used vaginal/external genital medications, including antifungals, within 24 hours prior to the microbiome collection date.
5. Individuals with acute conditions (e.g., moderate or severe diseases with or without fever; however, sample collection can be postponed until the participant recovers).
6. Individuals with chronic and clinically significant histories of liver, digestive, cardiovascular, renal, neurological, respiratory, endocrine, immune, hematological disorders, malignancies, psychiatric conditions, or a history of drug abuse.
7. Individuals who have drastically changed their diet for rapid weight gain or loss within 4 weeks prior to the microbiome collection date.
8. Individuals with gastrointestinal disorders that could impact microbiome analysis and are not currently medically managed or individuals under treatment for the following conditions: Inflammatory bowel diseases (e.g., Crohn's disease, ulcerative colitis), Irritable bowel syndrome (requiring drug therapy), Ulcers, acute or chronic pancreatitis, etc.
9. Individuals requiring the use of incontinence diapers.
10. Individuals with a positive urine pregnancy test, or who are pregnant or breastfeeding.
11. Individuals suspected of having medical findings that may affect the sample collection at the time of microbiome sample collection.
Minimum Eligible Age

13 Years

Maximum Eligible Age

85 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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Kangbuk Samsung Hospital

OTHER

Sponsor Role collaborator

Chung-Ang University Hosptial, Chung-Ang University College of Medicine

OTHER

Sponsor Role collaborator

Inje University Haeundae Paik Hospital

OTHER

Sponsor Role collaborator

Yeungnam University Hospital

OTHER

Sponsor Role collaborator

Kyungpook National University Hospital

OTHER

Sponsor Role collaborator

Chonnam National University Hospital

OTHER

Sponsor Role collaborator

Wonkwang University Hospital

OTHER

Sponsor Role collaborator

Daejeon St. Mary's hospital

OTHER

Sponsor Role collaborator

Dankook University

OTHER

Sponsor Role collaborator

Kyung Hee University Hospital at Gangdong

OTHER

Sponsor Role collaborator

Inje University Ilsan Paik Hospital

OTHER

Sponsor Role collaborator

Hanyang University

OTHER

Sponsor Role collaborator

Soon Chun Hyang University

OTHER

Sponsor Role collaborator

Chung-Ang University Gwangmyeong Hospital

OTHER

Sponsor Role collaborator

Keimyung University Dongsan Medical Center

OTHER

Sponsor Role collaborator

Chang Kyun Lee

OTHER

Sponsor Role lead

Responsible Party

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Chang Kyun Lee

Professor

Responsibility Role SPONSOR_INVESTIGATOR

Principal Investigators

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Chang Kyun Lee, MD, PhD

Role: PRINCIPAL_INVESTIGATOR

Kyunghee University Medical Center

Locations

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Kyunghee University Medical Center

Seoul, , South Korea

Site Status RECRUITING

Countries

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South Korea

Central Contacts

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Chang Kyun Lee, MD, PhD

Role: CONTACT

82-2-958-9996

Shin Ju Oh, MD, PhD

Role: CONTACT

82-2-958-9996

Facility Contacts

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Chang Kyun Lee, MD, PhD

Role: primary

82-2-958-8199

Eunjung Kim, RN

Role: backup

82-2-958-9996

References

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Lloyd-Price J, Arze C, Ananthakrishnan AN, Schirmer M, Avila-Pacheco J, Poon TW, Andrews E, Ajami NJ, Bonham KS, Brislawn CJ, Casero D, Courtney H, Gonzalez A, Graeber TG, Hall AB, Lake K, Landers CJ, Mallick H, Plichta DR, Prasad M, Rahnavard G, Sauk J, Shungin D, Vazquez-Baeza Y, White RA 3rd; IBDMDB Investigators; Braun J, Denson LA, Jansson JK, Knight R, Kugathasan S, McGovern DPB, Petrosino JF, Stappenbeck TS, Winter HS, Clish CB, Franzosa EA, Vlamakis H, Xavier RJ, Huttenhower C. Multi-omics of the gut microbial ecosystem in inflammatory bowel diseases. Nature. 2019 May;569(7758):655-662. doi: 10.1038/s41586-019-1237-9. Epub 2019 May 29.

Reference Type BACKGROUND
PMID: 31142855 (View on PubMed)

Kostic AD, Xavier RJ, Gevers D. The microbiome in inflammatory bowel disease: current status and the future ahead. Gastroenterology. 2014 May;146(6):1489-99. doi: 10.1053/j.gastro.2014.02.009. Epub 2014 Feb 19.

Reference Type BACKGROUND
PMID: 24560869 (View on PubMed)

Integrative HMP (iHMP) Research Network Consortium. The Integrative Human Microbiome Project. Nature. 2019 May;569(7758):641-648. doi: 10.1038/s41586-019-1238-8. Epub 2019 May 29.

Reference Type BACKGROUND
PMID: 31142853 (View on PubMed)

Kim HS, Kim BH, Nam B, Oh SJ, Park SK, Lee SW, Lee JY, Jo S, Lee YA, Lee JY, Park DI, Kim TH, Lee CK. Oral-gut microbiome axis in a Korean cohort with inflammatory bowel disease and ankylosing spondylitis (INTEGRATE): a prospective and observational study protocol. BMJ Open. 2025 Aug 10;15(8):e092075. doi: 10.1136/bmjopen-2024-092075.

Reference Type DERIVED
PMID: 40784769 (View on PubMed)

Other Identifiers

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MB-IBD-01

Identifier Type: -

Identifier Source: org_study_id

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