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New study checks if hypoparathyroidism drug passes into breast milk

NCT ID NCT07264634

Knowledge-focused Sponsor: Ascendis Pharma A/S Source: ClinicalTrials.gov ↗

What the study statuses mean

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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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 07, 2026 · Updated 1 time

Summary

This study looks at how much of the drug palopegteriparatide (YORVIPATH) gets into breast milk. It involves 10 women with hypoparathyroidism who are already taking the drug and breastfeeding. Researchers will collect milk samples to measure drug levels, helping understand safety for nursing infants.

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 10 people

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

Started

Mar 2026

Expected to finish

Aug 2027

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

Eligible females will be actively recruited from the US participants in the pregnancy registry. Females in the US who want to participate in the lactation study must first enroll in the pregnancy registry and meet the lactation study eligibility criteria study to participate. Females may self enroll into the study or may be enrolled by their healthcare provider (HCP).

Ages

18 to 50 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: * 1\. Lactating female participants 18 years of age or older treated with YORVIPATH as part of their usual medical care and who have chosen to breastfeed. Note: The participant must have been taking YORVIPATH for a minimum of 14 days prior to sample collection. * 2\. The major source of infant nutrition must be breast milk (Note: Only one supplemental bottle of no more than up to 8 oz of formula per day will be allowed during the 14 days before start of the study). * 3\. Daily dose of YORVIPATH administered within the last 14 days has been stable. * 4\. Participants recruited from other sources must enroll in the Pregnancy Registry before being allowed to participate in the Lactation Study. * 5\. Written consent or eConsent obtained. Exclusion Criteria: * 1\. Presence of any medical condition that, in the opinion of the investigator, may impair the ability to breastfeed during this study, including but not limited to mastitis and nipple malformation

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Conditions

The condition(s) this trial relates to.

hypoparathyroidism

As listed by the trial registrant

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

Hypoparathyroidism

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

  • Ascendis Investigational Site

    RECRUITING

    Morgantown, West Virginia, 26508, United States

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