RecruitingNot Applicable

A Worldwide Pregnancy Safety Study to Assess Maternal, Fetal, and Infant Outcomes Following Exposure to Efgartigimod During Pregnancy and/or Breastfeeding.

United States, Germany, Italy279 participantsStarted 2023-11-30

Plain-language summary

This is a multi-country, prospective safety study of pregnant women exposed to efgartigimod or efgartigimod PH20 SC any time within 25 days prior to conception or any time during pregnancy. Women exposed to efgartigimod or efgartigimod PH20 SC only during breastfeeding will also be eligible to enroll. Background rates of major congenital malformations (MCMs) will be obtained from populations within the same countries/regions as the countries/regions in which the efgartigimod or efgartigimod PH20 SC exposed pregnancies were reported.

Who can participate

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.

Inclusion Criteria: * Women with exposure to efgartigimod or efgartigimod PH20 SC any time within 25 days prior to conception or any time during pregnancy, or women with exposure to efgartigimod or efgartigimod PH20 SC during breastfeeding. The timeframe of 25 days prior to conception is calculated based on five times the efgartigimod half-life, which is 3 to 5 days. * Written/verbal informed consent or eConsent (depending on country regulations) (for adolescents under the age of majority, written/verbal informed assent or eConsent by the pregnant minor (where applicable) and written/verbal informed consent or eConsent by the parent/legal guardian). Exclusion Criteria: * None

Questions worth asking your doctor

Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.

1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?

Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.

Questions for the trial coordinator

The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.

1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?

A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.

What they're measuring

Pregnancy outcomes

Timeframe: up to 10 years

Trial details

NCT IDNCT06299748

Sponsorargenx

Sponsor typeINDUSTRY

Study typeOBSERVATIONAL

Primary completion2033-01

Contact for this trial

Sabine Coppieters, MD

857-350-4834 Clinicaltrials@argenx.com

View on ClinicalTrials.gov More Myasthenia Gravis trials

Plain-language summary

Who can participate

Sex

FEMALE

See this in plain English?

AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.