New study tracks safety of ultomiris in pregnant women
NCT ID NCT06312644
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study follows 75 pregnant women who have taken Ultomiris (ravulizumab) for conditions like PNH or aHUS. Researchers will track pregnancy outcomes and baby health up to one year after birth. The goal is to gather safety information, not to test a new treatment.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- Active substance
- Ultomiris (ravulizumab)
- What this could lead to
- If successful, this study could provide important safety data on using Ultomiris during pregnancy, helping doctors and patients make informed decisions.
- What could go wrong
- This is an observational study, not a controlled trial, so it cannot prove cause and effect. Results may be limited by the small number of participants (75) and lack of a comparison group.
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
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About 75 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Dec 2024
- Expected to finish
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Jul 2034
An estimate. End dates often move.
- Lead sponsor
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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
Participants exposed to Ultomiris at any point up to 40 weeks prior to conception (Last Menstrual Period +14 days) through pregnancy and/or breastfeeding through the first 52 weeks of the infant's life.
- Ages
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Children (under 18), adults (18 to 64) and older adults (65 and over)
- Sex
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Female participants only
- Healthy volunteers
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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 Hide 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: * Female participant must have a medically confirmed qualifying pregnancy (prospectively or retrospectively identified). * Participant informed consent (written or e-consent per local regulations or ethics committee requirements) must be obtained prior to the participant's enrollment. If the participant is a minor, consent must be obtained from the parent or legal guardian, with assent from the minor (as locally appropriate). * Willing to provide contact information for the participant. * Willing to authorize HCP(s) to release maternal and infant medical information to the study, upon request, if applicable to current local regulations. * Diagnosed with an indication for which Ultomiris is approved, based on HCP or medical records. * Exposed to Ultomiris at any point during the defined exposure window based on HCP or medical record documentation. (If exact exposure dates are unknown, the reporter must be able to specify or estimate trimester or timing of exposure \[prior to conception as LMP+14 days, or during breastfeeding\].) * Use of Ultomiris per local product information (i.e., United States Prescribing Information \[USPI\] or summary of product characteristics \[SmPC\]) Exclusion Criteria: * Participants who are unable to provide consent or assent (as locally appropriate) (e.g., diagnosed with severe psychiatric conditions or severe intellectual disabilities) will be excluded from this study
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Get notified about this study
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Genom att skicka in godkänner du våra Användarvillkor
Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The study's own enquiry address
This study publishes an address for enquiries. See it below .
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The places running it
5 sites in 5 countries. The list below names each one and where it is.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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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
Show contact details
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Genom att skicka in godkänner du våra Användarvillkor
Study contacts
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Contact
Email: •••••@•••••
Locations
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Research Site
RECRUITINGBoston, Massachusetts, 02210, United States
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Research Site
NOT_YET_RECRUITINGMelbourne, Victoria, 3050, Australia
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Research Site
RECRUITINGParis, 75475, France
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Research Site
RECRUITINGEssen, Norte-Westfalia, D-45147, Germany
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Research Site
RECRUITINGRome, 00168, Italy
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Research Site
ACTIVE_NOT_RECRUITINGSeoul, South Korea
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Research Site
ACTIVE_NOT_RECRUITINGLondon, SE5 9NU, United Kingdom
More trials for these conditions
Other studies related to the condition(s) this trial covers.
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- Can a video session get pregnant women to seek more health care?
- Can an antibody that blocks a immune protein ease myasthenia gravis?
- Citrulline: a potential key to prolonging pregnancy in pre-eclampsia?
- Can virtual reality coach pregnant women toward healthier habits?