Demonstrated bleed control in previously untreated patients (PUPs)
Indicated for bleed control† in PUPs
94.1% of responses were rated excellent or good in PUPs receiving an initial infusion of BeneFIX for on-demand treatment†
75% of bleeds were controlled after 1 infusion with BeneFIX
†Study included 54 evaluable patients; median dose 62.7 IU/kg (range: 8.2-292 IU/kg).
‡Bleed control rating scale: efficacy was rated by the caregiver or investigator using a 4-point scale, based on a comparison with previously used plasma-derived factor IX (pdFIX) products for similar bleeds or procedures: excellent (as much and as rapid an improvement as the best pdFIX-related responses), good (as much and as rapid an improvement as most pdFIX-related responses), moderate (not as good as most pdFIX-related responses), or no response (no improvement).
STUDY DESCRIPTION
In a multicenter, open-label clinical trial, 25 PTPs were treated with BeneFIX administered at 100 IU/kg once weekly and evaluated for approximately 52 weeks. Common (≥5%) adverse reactions were headache (36%), fever (20%), and cough (8%).
In the study, no patients were withdrawn from the study due to an adverse reaction, no inhibitors were detected, and no thrombotic (blood clotting) events or anaphylactic events were reported.
Experience with PTPs
Indicated for bleed control§ in PTPs
90.9% of responses were rated excellent or good in PTPs receiving an initial infusion of BeneFIX for on-demand treatment
80.9% of bleeds were controlled after 1 infusion with BeneFIX
In the same study,¶ 63% of PTPs did not have spontaneous bleeding within 48 hours of their last infusion.
§Study included 55 evaluable patients; median dose 42.8 IU/kg (range: 6.5-224.6 IU/kg).
||Bleed control rating scale: efficacy was rated by the patient or investigator using a 4-point scale, based on a comparison with previously used pdFIX products for similar bleeds or procedures: excellent (as much and as rapid an improvement as the best pdFIX-related responses), good (as much and as rapid an improvement as most pdFIX-related responses), moderate (not as good as most pdFIX-related responses), or no response (no improvement).
¶Study included 19 evaluable patients; mean dose 40.3 IU/kg (range: 13-78 IU/kg).
STUDY DESCRIPTION
A 20-center international trial was conducted in 56 PTPs with severe or moderate (<5 IU/dL factor IX activity) hemophilia B. Participants received rFIX for pharmacokinetic studies, treatment of or prophylaxis against hemorrhage, or surgical hemostasis (for all interventions the regimen was prescribed by the investigator) for a mean duration of treatment of 23.4 ± 5.3 months and were assessed at 3-month intervals for 2 years. This research was originally published in Blood.
Low levels of inhibitors in BeneFIX clinical trials
The body can make antibodies called “inhibitors.” These may stop BeneFIX from working properly. The higher the level of inhibitors, the more they may block effective treatment with BeneFIX.
The strength of an inhibitor in a person’s blood is measured in BU.
For on-demand treatment
BeneFix, Coagulation Factor IX (Recombinant), is an injectable medicine that is used to help control and prevent bleeding in people with hemophilia B. Your doctor might also give you BeneFix before surgical procedures.
BeneFix is NOT used to treat hemophilia A.
Please see fullPrescribing Informationfor BeneFix.
Please see full Prescribing Information for BeneFIX.
Patients should always ask their doctors for medical advice about adverse events.
You are encouraged to report adverse events related to Pfizer products by calling
Persons depicted throughout this website are not actual BeneFIX patients unless stated otherwise.
© 2024 Pfizer Inc. All rights reserved.
February 2024
PP-BEN-USA-0905
Links to other websites are provided as a convenience to the viewer.
Pfizer accepts no responsibility for the content of linked sites.
This site is owned by Pfizer and contains information about financial support offerings.
The information provided in BeneFIXHCP.com is intended only for healthcare professionals in the United States.
ContinueImportant Safety Information and Indication
See MoreBeneFix, Coagulation Factor IX (Recombinant), is an injectable medicine that is used to help control and prevent bleeding in people with hemophilia B. Your doctor might also give you BeneFix before surgical procedures.
BeneFix is NOT used to treat hemophilia A.
Please see full Prescribing Information for BeneFix.
Patients should always ask their doctors for medical advice about adverse events.
You are encouraged to report adverse events related to Pfizer products by calling
Persons depicted throughout this website are not actual BeneFix patients.
Copyright © 2023 Pfizer Inc. All rights reserved.
July 2023
PP-BENPP-BEN-USA-0829