RecruitingPhase 1

A Study to Assess Zilucoplan Concentration in Breast Milk of Healthy Lactating Women

United States15 participantsStarted 2025-07-09

Plain-language summary

The purpose of this study is to assess the steady state (SS) concentrations of zilucoplan (ZLP) and its major metabolites in mature breast milk of healthy study participants following injection of repeated once-daily doses of ZLP.

Who can participate

Age range

18 Years

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: * Study participant must be minimum 18 years at the time of signing the Informed consent form (ICF) * Study participant is overtly healthy as determined by medical evaluation including medical history, physical examination, laboratory tests, and cardiac monitoring * Study participant is lactating and will be at least 6 weeks postpartum on Day 1 of the study * Study participant has already planned, prior to having knowledge of this study, to cease breast milk feeding (by any means) in relation to her current period of lactation * Study participant agrees to cease breast milk feeding by Day 1 of the study and to not resume breast milk feeding (by any means and of any infant) or donate breast milk following study end for the remainder of her current period of lactation * Study participant is up to date with vaccinations against meningococcal bacteria (serogroups A, C, W, Y, and B) at least 2 weeks before the first administration of study medication according to the current (at the time of study participant consent) Advisory Committee on Immunization Practices (ACIP) recommendations for meningococcal vaccinations in patients receiving a complement inhibitor * Study participant is capable of giving signed informed consent Exclusion Criteria: * Study participant has a history or presence of/significant history of or current cardiovascular, respiratory, hepatic, renal, gastrointestinal, endocrinological, hematological, or neurological disorders capable of sign…

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

Concentrations of zilucoplan and its major metabolites (RA103488 and RA102758) in breast milk during 24 hour steady state (SS) Sampling Period

Timeframe: 30 minutes predose on Day 10 and at prespecified intervals (0 to ≤3, >3 to ≤6, >6 to ≤9, >9 to ≤12, and >12 to ≤24 hours) postdose on Day 10

Trial details

NCT IDNCT06961747

SponsorUCB Biopharma SRL

Sponsor typeINDUSTRY

Study typeINTERVENTIONAL

Primary completion2027-03-23

Contact for this trial

UCB Cares

+18445992273 ucbcares@ucb.com

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