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Could your Child's gut microbiome predict COVID-19 risk?

NCT ID NCT07717008

Knowledge-focused Sponsor: Spanish National Research Council Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jul 21, 2026 · Last updated Jul 22, 2026 · Updated 1 time

Summary

This observational study looks at whether the types of bacteria living in the gut, along with diet and lifestyle, are linked to a person's risk of catching SARS-CoV-2. It follows over 900 children, their family members, and teachers in Spain for 17 months. Researchers collect stool samples and survey data to see if certain gut microbes or eating habits make someone more or less likely to get infected. The study also examines how these factors relate to children's brain development and learning.

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
If successful, this could identify gut microbiome patterns that predict who is more susceptible to SARS-CoV-2 infection, pointing toward dietary or lifestyle strategies to reduce risk.
What could go wrong
This is an observational study, so it cannot prove cause and effect. The findings may not apply to other populations or future virus variants.

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

932 people

The number who actually took part.

Started

Nov 2020

Finished

Dec 2024

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

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

Who is studied

Subjects over the age of 3 who are interested in participating in the study. The study targets school-aged subjects (3-17 years old) as well as their close family members and teachers.

Ages

3 years and older

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: 1. Be over 3 years of age. 2. Complete all questionnaires on diet, lifestyle, health, etc. 3. Ability to give written consent; in the case of minors, have the consent of a legal guardian. Exclusion Criteria: 1. History of confirmed SARS-CoV-2 infection, positive serology (IgM/IgG). 2. NOT have any minors living with them in the study.

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Conditions

The condition(s) this trial relates to.

Behavior learning disability

As listed by the trial registrant

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

Heathly subjects susceptible to SARS-CoV-2 infection

Contacts and locations

Locations

  • Instituto de Agroquímica y Tecnología de Alimentos (IATA-CSIC)

    Valencia, Spain