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C-Section or vaginal? study reveals differences in breast milk

NCT ID NCT05516940

Knowledge-focused Sponsor: Société des Produits Nestlé (SPN) 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether the way a baby is born (C-section or vaginal) changes the nutrients in breast milk. Researchers analyzed milk from 250 healthy mothers in China. The goal was to understand differences in sugars, fats, and proteins, not to test any treatment.

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

250 people

The number who actually took part.

Started

May 2022

Finished

Jul 2023

Lead sponsor

A company

The lead sponsor is a pharmaceutical, biotech, or medical-device company.

Who can take part

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

Who is studied

The study population of interest is mothers that have delivered at full term (\>37 weeks of gestation) who have already provided human milk samples collected within China CDC's cross sectional multi-centric human milk study conducted in China.

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Female participants only

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. Human milk to be selected from the mothers who have delivered at full term (\>37 weeks of gestation). 2. 125 subjects will be selected who have delivered infants by Caesarean-section. 3. 125 subjects will be selected who have delivered infants by vaginal/normal deliveries. 4. Subjects will be selected based on sample availability. 5. Based on sample availability to balance by stage of lactation, geographical locations within China. 6. Subjects of Han ethnicity. 7. The collection of existing biological material and/or health-related personal data have been consented in the frame of the approved original study scope. We will propose to the participants to consent to this specific research. Exclusion Criteria: 1\) Incomplete information either for the subject or the sample collected.

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As listed by the trial registrant

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

Healthy

Contacts and locations

Locations

  • Chinese Center for Disease Control and Prevention, National Institute for Nutrition and Health

    Beijing, China

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Other studies related to the condition(s) this trial covers.