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New study to track cystic fibrosis drugs in pregnancy and breast milk

NCT ID NCT04940533

Knowledge-focused Sponsor: University of Minnesota 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 This study
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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 cystic fibrosis medications (CFTR modulators) change in the body during pregnancy and after childbirth in 30 women. Researchers will measure drug levels in blood, breast milk, and umbilical cord blood. The goal is to understand how these drugs work in pregnant and breastfeeding mothers to help guide safe use.

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 30 people

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

Expected to start

Jan 2027

An estimate. Start dates often move.

Expected to finish

Jul 2028

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

Adult females receiving cystic fibrosis transmembrane conductance regulator (CFTR) modulation therapy who are pregnant or breastfeeding.

Ages

18 years and older

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: * Female 18 years of age and older * Female who has a diagnosis of cystic fibrosis * Female who is taking cystic fibrosis transmembrane conductance regulator (CFTR) modulator medication during pregnancy and postpartum Exclusion Criteria: * Female \< 18 years of age * Female with cystic fibrosis who is not taking cystic fibrosis transmembrane conductance regulator (CFTR) modulator medication during pregnancy and postpartum * Participant has contraindication to breastfeeding or not planning to breastfeed

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Conditions

The condition(s) this trial relates to.

cystic fibrosis

As listed by the trial registrant

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

Cystic fibrosis Pregnancy

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 Minnesota

    Minneapolis, Minnesota, 55455, United States

More trials for these conditions

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