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Breast Milk's secret role in virus transmission revealed?

NCT ID NCT06738563

Knowledge-focused Sponsor: Institut Pasteur 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study looks at how breast milk influences viruses like HTLV-1, Zika, and dengue. Researchers will mix milk samples with these viruses in the lab to see if the milk changes how well the viruses infect cells. The goal is to understand if breastfeeding can spread or block these viruses. 75 healthy breast milk donors in France are taking part.

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 research could clarify whether breast milk helps or hinders the spread of certain viruses, guiding future feeding recommendations for infected mothers.
What could go wrong
This is an observational lab study with only 75 participants, not a clinical treatment trial. Results may not directly apply to real-world breastfeeding or all viruses.

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 75 people

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

Started

Sep 2025

Expected to finish

Sep 2030

An estimate. End dates often move.

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

Breastfeeding adult women who register with the Île-de-France Milk Bank to donate their milk.

Ages

18 years and older

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: * Age \> 18 years * Female gender * Lactarium Ile-de-France donors * Subjects covered by a Social Security scheme, excluding State Medical Aid No inclusion criteria: \- Women opposing participation in the study Exclusion Criteria: \- Positive HIV, HBV, HCV and HTLV serologies (Lactarium exclusion criteria)

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Conditions

The condition(s) this trial relates to.

Breast Milk Expression viral infectious disease

As listed by the trial registrant

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

Breastmilk collection

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

  • Lactarium Ile-de-France, Necker-Enfents Malades Hospital

    RECRUITING

    Paris, 75015, France

More trials for these conditions

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