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Recruiting NCT06299748

NCT06299748 A Worldwide Pregnancy Safety Study to Assess Maternal, Fetal, and Infant Outcomes Following Exposure to Efgartigimod During Pregnancy and/or Breastfeeding.

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Clinical Trial Summary
NCT ID NCT06299748
Status Recruiting
Phase
Sponsor argenx
Condition Myasthenia Gravis
Study Type OBSERVATIONAL
Enrollment 279 participants
Start Date 2023-11-30
Primary Completion 2033-01

Eligibility & Interventions

Sex Female only
Min Age N/A
Max Age N/A
Study Type OBSERVATIONAL
Interventions
Efgartigimod

Eligibility Fast-Check

Enter your details for a quick preliminary check. This does not replace medical advice.

What to Expect as a Participant

This is an observational study. You will not receive an experimental treatment; researchers will collect data based on your existing condition or standard treatment.

This trial targets 279 participants in total. It began in 2023-11-30 with a primary completion date of 2033-01.

⚠ This information is for research awareness only. Always consult your physician before joining any clinical trial. Participation is voluntary and you may withdraw at any time.

Brief 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.

Eligibility Criteria

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

Contact & Investigator

Central Contact

Sabine Coppieters, MD

✉ Clinicaltrials@argenx.com

📞 857-350-4834

Frequently Asked Questions

Who can join the NCT06299748 clinical trial?

This trial is open to female participants only, studying Myasthenia Gravis. Full inclusion and exclusion criteria are listed in the Eligibility Criteria section. Always confirm your eligibility with the research team before applying.

Is NCT06299748 currently recruiting?

Yes, NCT06299748 is actively recruiting participants. Contact the research team at Clinicaltrials@argenx.com for enrollment information.

Where is the NCT06299748 trial being conducted?

This trial is being conducted at Morgantown, United States, Bochum, Germany, Roma, Italy, Barcelona, Spain.

Who is sponsoring the NCT06299748 clinical trial?

NCT06299748 is sponsored by argenx. The trial plans to enroll 279 participants.

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ClinicalMetric — Independent clinical trial intelligence platform. Not affiliated with NIH, ClinicalTrials.gov, the U.S. FDA, or any pharmaceutical company, hospital, or clinical research organization. Trial data is sourced from ClinicalTrials.gov for informational purposes only and does not constitute medical advice. Do not make any treatment, enrollment, or health decisions based solely on information found here — always consult a qualified healthcare professional. Full Disclaimer  ·  Last Reviewed: July 2026  ·  Data Methodology