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Contact the study team using the details below to take part. If there are no contact details below please ask your doctor in the first instance.

Contact Information:

Alexion Pharmaceuticals, Inc. (Sponsor) 1-855-752-2356
clinicaltrials@alexion.com


Study Location:

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Be Part of Research - Trial Details - Study of Ultomiris® (Ravulizumab) Safety in Pregnancy

Study of Ultomiris® (Ravulizumab) Safety in Pregnancy

Recruiting

Open to: FEMALE

Age: All

Medical Conditions

Ultomiris-exposed Pregnant/ Postpartum
Pregnancy
Paroxysmal Nocturnal Hemoglobinuria (PNH)
Atypical Hemolytic Uremic Syndrome (aHUS)
Generalized Myasthenia Gravis (gMG)
Neuromyelitis Optica Spectrum Disorder (NMOSD)


This information is provided directly by researchers, and we recognise that it isn't always easy to understand. We are working with researchers to improve the accessibility of this information. In some summaries, you may come across links to external websites. These websites will have more information to help you better understand the study.


The primary objective of this study is to describe the frequency and characteristics of pregnancy outcomes and maternal complications among participants exposed to Ultomiris and to describe the frequency and characteristics of selected fetal/neonatal/infant outcomes in utero, at birth, and through 1 year of age after exposure in utero or via breastmilk.

Start dates may differ between countries and research sites. The research team are responsible for keeping the information up-to-date.  

The recruitment start and end dates are as follows:

Dec 2024 Jul 2034

OBSERVATIONAL

Intervention Type : DRUG
Intervention Description : Participants exposed to Ultomiris at any point during the 40 weeks prior to conception (LMP+14 days) or at any point during pregnancy or breastfeeding up to 52 weeks after birth.




You can take part if:



You may not be able to take part if:


This is in the inclusion criteria above


Below are the locations for where you can take part in the trial. Please note that not all sites may be open.

  • Research Site
    London
    SE5 9NU

Alexion Pharmaceuticals, Inc. (Sponsor) 1-855-752-2356
clinicaltrials@alexion.com



The study is sponsored by Alexion Pharmaceuticals, Inc.




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Read full details for Trial ID: NCT06312644
Last updated 15 April 2026

This page is to help you find out about a research study and if you may be able to take part

You can print or share the study information with your GP/healthcare provider or contact the research team directly.