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New study checks if common painkillers are safe for breastfeeding moms

NCT ID NCT01854411

Knowledge-focused Sponsor: Assistance Publique - Hôpitaux de Paris 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study looked at whether two common pain relievers, ibuprofen and ketoprofen, enter breastmilk in significant amounts. Researchers measured drug levels in milk from 35 breastfeeding women who had been taking one of these medicines for more than 24 hours. The goal was to help mothers and doctors make safer choices about pain relief while breastfeeding.

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

35 people

The number who actually took part.

Start date

Sep 2011

Finished

Nov 2014

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

Lactarium, Maternal care, Consultant of Lactation

Ages

18 to 49 years

Sex

Female participants only

Healthy volunteers

Not accepted

This study is not open to healthy volunteers. The entry requirements below say who it is open to.

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: * breastfeeding women after the first week of delivery * breastfeeding women treated by ketoprofen or ibuprofen per os more than 24 hours * Written Informed Consent Exclusion Criteria: * breastfeeding women treated by naproxene * Curator or justice decision's

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As listed by the trial registrant

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

Analgesics use during breastfeeding and concentrations in human mature milk

Contacts and locations

Locations

  • hopital Saint Antoire

    Paris, 75012, France