EFFICACY AND SAFETY SUPPORTED BY UP TO 6.5 YEARS’ CUMULATIVE CLINICAL TRIAL EXPERIENCE4
in patients with haemophilia B4
In a longitudinal post hoc analysis of pivotal trial data (N=120), ALPROLIX:4
Maintained low ABRs4,5
ABRs remained low across all age groups on prophylaxis4,5
Median ABR for patients on weekly prophylaxis
treatment during B-LONG and B-YOND5

Resolved target joints4
A sub-analysis showed:
100% (93/93)
of target joints in 37 patients
resolved during treatment4
No recurrence in 90% (83/93) of target joints during follow-up4
Achieved high adherence4
Dose adherence on weekly or individualised prophylaxis
*Outcome measures included the cumulative duration of ALPROLIX, number of exposure days,
longitudinal overall ABR, annualised joint bleed rate (AjBR), annualised spontaneous bleed
rate, annualised traumatic bleed rate, and the consumption of ALPROLIX (total IU/kg per
subject per year).4
ABR, annualised bleeding rate; IQR, interquartile range.
ALPROLIX was well tolerated in the Phase 3 clinical trials,
reinforcing an established safety profile4
No inhibitor development, anaphylaxis or
serious hypersensitivity, or vascular
thrombotic
events during long-term treatment4
No new safety signals or concerns emerged
during long-term follow-up on extended
dosing*4
*Reported for sub-group analysis of patients on extended dosing intervals (>14 days).4
A post hoc efficacy and safety analysis of pooled longitudinal data from
patients previously enrolled in pivotal trials*4

*In the Phase 3 trials, 123 and 30 patients were enrolled in B-LONG and Kids B-LONG respectively.4