National Cohort Study on Infant Gut Microbiota and Nutrition

July 10, 2026 updated by: DiproBio (Shanghai) Co., Ltd.

Study on Gut Microbiota Characteristics and Their Relationship With Nutritional Health in Infants and Young Children Based on a National Cohort

This study plans to collect 106,667 fecal samples from Chinese infants and children under 6 years old, with multi-dimensional stratification based on geographic location, mode of delivery, antibiotic exposure, and developmental stage. Fecal gut microbiota will be profiled to construct a gut microbiome atlas, establish quantitative analytical models linking geographic regions, physiological phenotypes and microbial signatures, and identify key microbial biomarkers associated with core healthy phenotypes.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Active, not recruiting

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

The human gastrointestinal tract harbors vast and diverse microbial communities collectively termed the "gut microbiota", widely known as the human body's "second genome". Research has demonstrated that during the colonization and maturation of gut microbiota in early infancy, these microbes participate in multiple core physiological processes including immune system maturation, nutrient absorption and metabolism, and nervous system development. Infancy represents a critical window for the establishment of intestinal microecology. Disturbances from adverse environmental factors such as antibiotic administration, inappropriate dietary patterns, and environmental pollution may trigger dysbiosis of microbial composition, which in turn elevates the long-term risk of developing obesity, allergic disorders, asthma, autism spectrum disorders and other diseases.

The formation and dynamic shifts of childhood gut microbiota are shaped not only by early-life exposures including mode of delivery, breastfeeding status and antibiotic use, but also by subsequent dietary patterns, living environments and socioeconomic status. For instance, high-fat diets reduce the abundance of beneficial gut bacteria, whereas Mediterranean-style diets support intestinal health; antibiotic treatment markedly diminishes microbial diversity and impairs community stability; urban-rural disparities also drive profound differences in gut microbial composition.

To date, domestic research on gut microbiota among infants and children has largely consisted of regional, small-cohort studies, lacking large-scale baseline datasets covering diverse geographic regions, age brackets and health statuses across China. This gap partially hinders the accumulation of scientific evidence for pediatric intestinal health research and disease prevention and control, and restricts the formulation of localized nutritional intervention strategies.

Accordingly, this study aims to conduct a large-cohort investigation covering infants and children aged 0 to 6 years nationwide. Through metagenomic sequencing and microbial isolation and culture of fecal specimens, we will construct gut microbiota atlases stratified by age, geographic region and health profile. The research will focus on associations between representative core gut taxa (e.g., Bifidobacterium) and indicators including children's nutritional status, immune development, allergic manifestations, gastrointestinal function and physical growth. We will also characterize microbial succession patterns during critical developmental windows in early life. Multivariate modeling and machine learning algorithms will be applied to screen microbial biomarkers strongly correlated with specific health conditions, and further dissect their underlying biological mechanisms.

This project is led by a professional research team with extensive experience in intestinal microecology. The team has previously completed gut microbiota profiling and analysis for thousands of infant subjects, obtained ethical approval and secured third-party laboratory qualification, laying a solid research foundation. Findings from this study will provide data support for early identification and intervention of common childhood illnesses, and deliver vital scientific evidence for developing personalized nutritional and health management strategies tailored to gut microecological signatures in Chinese children.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Observational

Enrollment (Estimated)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
106667

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • China
      • Shanghai, China
        • DiPROBIO(Shanghai) Co., Ltd.

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

N/A

Sampling Method

Non-Probability Sample

Study Population

A total of 106,667 Chinese infants and children aged 0 to 6 years will be enrolled across all 34 provincial-level administrative regions of China

Description

Inclusion Criteria:

  1. Infants and children aged 0-6 years, regardless of gender.
  2. Volunteers willing to participate in fecal sample collection and baseline health information gathering during the study period.
  3. Legal guardians must agree to participate in the study and provide a signed written informed consent.

Exclusion Criteria:

  1. Presence of congenital developmental anomalies, including but not limited to congenital cardiovascular malformations and chromosomal aneuploidy.
  2. Immune system functional disorders, such as Severe Combined Immunodeficiency.
  3. Diagnosis of hereditary diseases, such as genetic disorders caused by chromosomal abnormalities.
  4. Any condition deemed unsuitable for participation by the investigator, including but not limited to failure to meet compliance assessment standards.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

Cohorts and Interventions

Group / Cohort

Group / Cohort

A group or subgroup of participants in an observational study that is assessed for biomedical or health outcomes.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
National cohort of Chinese children aged 0-6 years
This single nationwide cohort enrolls a total of 106,667 Chinese infants and children under 6 years old. enrollment.
Other: Fecal sample collection and gut microbiome profiling
This study is purely observational with no therapeutic or invasive clinical interventions implemented. We only collect non-invasive fecal specimens from enrolled healthy infants and children aged 0-6 years across China, perform microbial genome sequencing and microbial isolation culture to analyze gut microbiota characteristics, and construct a national pediatric gut microbiome atlas. No drugs, medical devices or clinical treatment adjustments are given to participants throughout the research.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Establish a national gut microbiome atlas of infants and children aged 0-6 years covering all 34 provincial-level administrative regions in China, incorporating subjects across distinct age brackets and geographic backgrounds
Time Frame: Baseline (single time point at enrollment)
Baseline (single time point at enrollment)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
DiproBio (Shanghai) Co., Ltd.

Investigators

Investigators

A researcher involved in a clinical study. Related terms include site principal investigator, site sub-investigator, study chair, study director, and study principal investigator.
  • Principal Investigator: Qinghua Yu, DiproBio (Shanghai) Co., Ltd.

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
April 30, 2026

Primary Completion (Estimated)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
March 1, 2030

Study Completion (Estimated)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2031

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
July 10, 2026

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 10, 2026

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
July 15, 2026

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
July 15, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
July 10, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
July 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • SECCR2025-158-01

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

Clinical Trials on Fecal Gut Microbiota

Clinical Trials on Fecal sample collection and gut microbiome profiling

Search Similar Trials

Sponsors and Collaborators

Medical Conditions

Drug Interventions

Conditions

Rare Diseases

Drug Interventions

Dietary Supplements

Sponsor/Collaborators

Locations

Cookie Settings

We use cookies to ensure that we give you the best experience on our website. For more details carefully read our Privacy and Cookies Policy. ...>>>You can change your preferences or withdraw your consent at any time by deleting the cookies from your website or computer as described in the policy. Please accept it and choose your preferences by ticking the corresponding boxes in the "Manage Settings" section below. Please carefully read our Terms of Service before you proceed with using any part of this website.
«Manage Settings