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New study monitors Eplontersen's effects during pregnancy and nursing

NCT ID NCT07205666

Knowledge-focused Sponsor: AstraZeneca 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 Results may not be published yet.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This status has not been confirmed recently, so it may be out of date.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 Aug 28, 2026 · Updated 2 times

Summary

This study follows up to 10 pregnant or breastfeeding individuals with transthyretin amyloidosis who have taken eplontersen, along with their infants. Researchers will track pregnancy complications, birth defects, and infant health during the first year of life. The goal is to describe safety outcomes, not to test the drug's effectiveness.

What this could mean

Our plain-language read of the trial. This is informational only, not medical advice or a prediction.

Active substance
eplontersen
What this could lead to
If successful, this study could provide important safety information for using eplontersen during pregnancy and breastfeeding.
What could go wrong
This is a very small study (10 participants) that only describes outcomes, not tests effectiveness. It may not detect rare risks or apply to all patients.

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

Nov 2025

Expected to finish

Dec 2035

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

The study population will include all PV reports of pregnant and/or lactating individuals diagnosed with an indication approved for use of eplontersen who administered at least one dose of eplontersen during pregnancy or lactation

Ages

Children (under 18), adults (18 to 64) and older adults (65 and over)

Sex

Anyone

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: * all pregnancy and/or lactation cases with exposure to eplontersen and a diagnosis of an approved indication for treatment with eplontersen * all adverse event reports in infants in the first 12 months of age that are or can be linked to pregnancy or lactation reports in individuals previously diagnosed with an approved indication and exposed to eplontersen during pregnancy or lactaction Exclusion Criteria: * all case reports considered invalid (i.e. minimum data is not provided at first report nor follow-up), or where reporter indicates that they do not wish to be contacted to obtain follow-up information, or the reporter/patient cannot be identified

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Conditions

The condition(s) this trial relates to.

familial amyloid neuropathy

As listed by the trial registrant

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

Transthyretin amyloidosis

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

  • Research Site

    RECRUITING

    Frankfurt, Germany

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