New study tests safer bleeding control for hemophilia a patients on emicizumab

NCT ID NCT04563520

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This phase 3 study is testing whether a low, personalized dose of FEIBA (aPCC) can safely control bleeding in children and adults with hemophilia A who have inhibitors and are already taking emicizumab. The study will measure how well the blood clots after FEIBA is given and track any serious side effects. Only 5 participants are being enrolled, so results will be very preliminary.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance

Emicizumab (Hemlibra) and FEIBA (activated prothrombin complex concentrate)

What this could lead to

If successful, this could show that a low, personalized dose of FEIBA is safe and effective for managing breakthrough bleeding in people with hemophilia A and inhibitors who are already on emicizumab.

What could go wrong

This is a very small study (only 5 participants) and is still recruiting. It focuses on lab measures of clotting, not long-term outcomes, so results may not apply broadly. There is also a risk of blood clots or other serious side effects.

Disclaimer Read more

This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.

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Conditions

The condition(s) this trial relates to.

hemophilia A hemophilia B

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Children's Healthcare of Atlanta

    RECRUITING

    Atlanta, Georgia, 30322, United States

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • Emory University Hospital

    RECRUITING

    Atlanta, Georgia, 30322, United States