Status:

RECRUITING

Long-term Study Evaluating Joint Health in People With Haemophilia A Receiving Real-world Prophylactic Treatment With Efanesoctocog Alfa

Lead Sponsor:

Swedish Orphan Biovitrum

Collaborating Sponsors:

PSI CRO

Conditions:

Hemophilia A

Eligibility:

All Genders

Phase:

PHASE4

Brief Summary

The rationale for this study is to further understand and describe the long-term prophylactic effectiveness of efanesoctocog alfa in preventing joint bleeds in a real-life setting.

Detailed Description

This is a retrospective-prospective, low-interventional study to evaluate the long-term effectiveness of real-world prophylaxis with efanesoctocog alfa on joint health in people with haemophilia A. Pa...

Eligibility Criteria

Inclusion

  • Male or female patient with a diagnosis of haemophilia A.
  • Capable of giving signed informed consent, which includes compliance with the requirements and restrictions listed in the informed consent form (ICF) and in this protocol.
  • Prescribed with efanesoctocog alfa prophylactic treatment within 6 months prior to study enrolment or at the latest at the enrolment visit, in accordance with local regulations.
  • Must have received prophylactic treatment(s) with any haemophilia product(s) for at least 12 months prior to being prescribed with efanesoctocog alfa treatment.
  • Have documented pre-study treatment data on haemophilia prophylaxis prescriptions and on treated bleeding episodes from the 12-months prior to being prescribed efanesoctocog alfa treatment and until enrolment into this study.
  • Willing to adhere to the visit schedule and to undergo mandatory study assessment (HJHS, PROs).
  • Willingness and the ability of the patient or their legally designated representative to document all bleeding episodes, including any treatments for those episodes.
  • For HEAD-US subgroup: Accept to undergo annual ultrasound assessment on the index joints (ankles, elbows, knees).

Exclusion

  • Acquired haemophilia A and other blood clotting disorders than hereditary haemophilia A.
  • Any positive FVIII inhibitor result (defined as inhibitor titre ≥0.6 Bethesda unit \[BU\]/mL) from the medical records in connection to the switch to efanesoctocog alfa until the enrolment visit.
  • Enrolment in a concurrent clinical interventional study, or intake of an investigational medicinal product (IMP), including for haemophilia prophylaxis, within 3 months prior to enrolment in this study.
  • Patient not suitable for participation, whatever the reason, as judged by the Investigator, e.g., patient is not able or willing to perform the study assessments.

Key Trial Info

Start Date :

May 21 2025

Trial Type :

INTERVENTIONAL

Allocation :

ESTIMATED

End Date :

December 1 2028

Estimated Enrollment :

250 Patients enrolled

Trial Details

Trial ID

NCT06940830

Start Date

May 21 2025

End Date

December 1 2028

Last Update

December 17 2025

Active Locations (24)

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Page 1 of 6 (24 locations)

1

Sobi Investigational Site

Zagreb, Croatia

2

Sobi Investigational Site

Brno, Czechia

3

Sobi Investigational Site

Ostrava, Czechia

4

Sobi Investigational Site

Prague, Czechia