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Could mountain air shape a Child's gut and immunity?

NCT ID NCT06157346

Knowledge-focused Sponsor: Ruijin Hospital Source: ClinicalTrials.gov ↗

What the study statuses mean

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Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing
Running, but no longer taking on new participants.
Completed This study
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 18, 2026 · Last updated Aug 19, 2026 · Updated 1 time

Summary

This study looks at the gut bacteria of children aged 1 to 3 living at high altitudes in China's Diqing Tibetan Autonomous Prefecture. Researchers will collect stool samples to analyze the types of bacteria and their metabolites, comparing them with children from lower altitudes. The goal is to understand how altitude and diet influence gut flora, and how that might relate to growth and immune function. This is an observational study, so it does not test any treatment.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

What this could lead to
This could reveal how high-altitude living shapes children's gut bacteria, potentially guiding ways to support growth and immune health in these communities.
What could go wrong
This is an observational study, so it can't prove cause and effect. Findings may not apply to other regions or altitudes.

This is an AI summary of the original study and may miss details. Read our disclaimer.

Study facts

What this study's own registry entry says, in plain language.

Participants

298 people

The number who actually took part.

Started

Oct 2023

Finished

Jul 2026

Lead sponsor

Other sponsor

The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

heathy children aged 1-3 years old

Ages

1 year to 3 years

Sex

Anyone

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

Show the full entry requirements

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Children aged 1-3 years old * Both men and women; * The child's legal guardian signed the informed consent to participate in the study. * The legal guardian of the child commits to follow the study procedures and cooperate with the entire study process Exclusion Criteria: * Probiotics or antibiotics within 1 month * Associated with clinically significant abnormalities in liver and kidney function, nervous system, respiratory system, and coagulation function as determined by the investigator * Unstable vital signs; * Have other underlying medical conditions * Individuals deemed unsuitable for this clinical trial.

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As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Children, only Gut microbiota Health

Contacts and locations

Locations

  • Ruijin Hospital, Shanghai Jiaotong University School of Medicine

    Shanghai, Shanghai Municipality, 021, China

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