Clinical trial Recruiting at 1 site Observational

Surgical Use of Efanoctocog alfa in Hemophilia A Patients

Official title: Study of Surgical Practices in Hemophilia A Patients Treated With Efanesoctocog Alfa (Altuvoct®)

Run by Hospices Civils de Lyon · NCT07723560 · Data updated 2026-11-12

This observational study looks at how efanesoctocog alfa (Altuvoct) is used around surgery in people with hemophilia A to see if it helps control bleeding.

More Haemophilia A trials

Quick facts

Study typeObservational
SexAll
Enrollment160 (estimated)
SponsorHospices Civils de Lyon
Academic / other
Drugs / interventionsemicizumab
Locations1 site (Bron)
StatusRecruiting
StartedJanuary 3, 2026
Main results expectedMarch 1, 2026
Study endsOctober 1, 2028
Registry record updatedJuly 23, 2026
Trial IDNCT07723560 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are people with hemophilia A who are undergoing surgery and are treated with Altuvoct.

Probably not a fit

Patients who are not receiving Altuvoct or who have inhibitors, severe liver or kidney disease, or other coagulation disorders may not experience the same benefits.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study observes the perioperative use of efanesoctocog alfa in hemophilia A patients undergoing surgery. It focuses on real-world administration and outcomes to understand how the ultra-long-acting FVIII product performs during surgical procedures. Data will come from clinical practice at a Lyon-area center and involve patients treated with Altuvoct. The aim is to identify practical dosing patterns and safety signals in the surgical setting. The study does not assign interventions but analyzes data from routine care.

Why it matters

Potential benefit: If successful, the findings could clarify how efanesoctocog alfa supports bleeding control during surgery and guide better perioperative management.

How similar studies have gone: Previous work in similar perioperative uses of extended-half-life FVIII suggests potential benefits, but this exact surgical context is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Hemophilia A
* Surgery performed with Altuvoct®
* Patient consent to participate after receiving detailed written information.

Exclusion Criteria:

* Presence of any blood coagulation disorder other than hemophilia A.
* Detectable factor VIII inhibitors.
* Known severe liver disease.
* Known severe kidney disease.
* Known hypersensitivity to Altuvoct® or any of its excipients.
* Participation in another clinical trial (participation in non-interventional studies is not an exclusion criterion).

Where it's running

  • Unité d'Hémostase Clinique Centre Régional de Traitement des Hémophiles Centre de Référence de Maladies Hémorragiques Hôpital Cardiologique Louis Pradel
    Bron, France
    Recruiting

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.