A Study to Evaluate Impact of Efanesoctocog Alfa on Long-term Joint Health in Participants With Hemophilia A
← catalyst calendarNCT05911763 · readout in 657 d
Sponsored by Sanofi (industry) · SNY — their whole pipeline →.
Phase
—
Status
Active, not recruiting
Study type
Observational
Enrollment
200estimated
Sites
28
Country
United States
Every value on this page is a field the sponsor filed with ClinicalTrials.gov, reproduced. Dates are their own estimates, revised as a study runs, unless the registry marks them actual. sources →
Source: ClinicalTrials.gov, retrieved 2026-08-19
Dates
each axis at the precision it was filed, with the registry's own basis| Date | Filed | Basis | What it is |
|---|---|---|---|
| Start | 2023-06-30 | actual | When the study began enrolling |
| Primary completion | 2028-06-06 | estimated | The date the last participant is measured for the primary outcome — the readout window |
| Study completion | 2030-09-17 | estimated | The whole study's end, after follow-up |
| First posted | 2023-06-22 | actual | When this record first appeared on the registry |
| Results posted | — | When the sponsor posted results to the registry | |
| Record updated | 2025-10-02 | actual | The sponsor's own last edit to this record — every projection above is as current as this date |
What it studies
Condition
- Hemophilia A
Intervention
- Drug: Efanesoctocog Alfa BIVV001 — also filed as ALTUVIIIO
Primary outcomes
what the primary-completion date above is the date OFChange from baseline in Annualized joint bleeding rate (AjBR) for treated bleeds
measured Up to 5 years
Change from baseline in Annualized joint bleeding rate (AjBR) for all (treated and untreated) bleeds
measured Up to 5 years
Number of Target joint development, resolution and/or recurrence
measured Up to 5 years
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