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Breast milk secrets revealed: direct feeding vs. pumping

NCT ID NCT06691932

Knowledge-focused Sponsor: University of Rochester Source: ClinicalTrials.gov ↗

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now This study
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
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 looks at how breast milk changes over time and throughout the day, and how these changes affect baby sleep and gut health. Researchers will compare 240 mothers who either breastfeed directly or pump milk. The goal is to help families make informed choices about feeding their babies.

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

About 240 people

The number the study aims to enrol. It can still change while the study runs.

Started

Nov 2024

Expected to finish

Nov 2029

An estimate. End dates often move.

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

240 mother/infant dyads exclusively feeding HM to healthy infants between 1-5 months postpartum: 120 mothers primarily feeding ATB (ATB Group) and 120 mothers predominantly feeding expressed HM (Express Group)

Ages

0 days to 40 years

Sex

Anyone

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: * Lactating mothers between 20-40 years old at enrollment o 120 mother/infant dyads who primarily feed HM ATB (average \>75% of feeds, * pumping no more than one time per day) o 120 mother/infant dyads who predominantly feed expressed HM (average \>75% of feeds) * All races and ethnicities may enroll * Singleton infant delivered after 37 weeks * Infant between the ages of 0-1 months at the time of enrollment. * No serious health complications in mother or infant Exclusion Criteria: * Non-English-speaking subjects as study personnel only speak English * Lactating moms who will be feeding both ATB and expressed HM (over 25% of the time in either feeding mode) * Infant supplementation with formula ≥10 oz before sample collections begin, and/or no more than 16 oz during active participation/ sample collections.

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Conditions

The condition(s) this trial relates to.

Breast Feeding

As listed by the trial registrant

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

Breast feeding Exclusive breastfeeding

How to take part

Only the study team decides who joins. These are the ways to reach them.

  1. The places running it

    1 site. The list below names each one and where it is.

  2. The official record

    ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.

    Open the record ↗

  3. A doctor treating you

    A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.

Contacts and locations

Locations

  • University of Rochester Medical Center

    RECRUITING

    Rochester, New York, 14642, United States

More trials for these conditions

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