Study To Compare On-Demand Treatment To A Prophylaxis Regimen Of BeneFIX In Subjects With Moderately Severe to Severe Hemophilia B
A Multicenter, Open-label Study To Compare On-demand Treatment To A Prophylaxis Regimen Of Nonacog-alfa (Benefix) In Subjects With Moderately Severe To Severe Hemophilia B (Fix:c</=2%)
Sponsor: Pfizer
A PHASE3 clinical study on Hemophilia B, this trial is completed. The trial is conducted by Pfizer and has accumulated 9 data snapshots since 2011. Longitudinal tracking of this trial contributes to a broader understanding of treatment development timelines.
Status Flow
Change History
9 versions recorded-
Sep 2025 — Present [monthly]
Completed PHASE3
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Sep 2024 — Sep 2025 [monthly]
Completed PHASE3
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Jul 2024 — Sep 2024 [monthly]
Completed PHASE3
-
Jan 2023 — Jul 2024 [monthly]
Completed PHASE3
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Dec 2022 — Jan 2023 [monthly]
Completed PHASE3
▶ Show 4 earlier versions
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Jan 2021 — Dec 2022 [monthly]
Completed PHASE3
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Jun 2018 — Jan 2021 [monthly]
Completed PHASE3
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Feb 2017 — Jun 2018 [monthly]
Completed PHASE3
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Jan 2017 — Feb 2017 [monthly]
Completed PHASE3
First recorded
Sep 2011
Trial started
Per CT.gov start date — pre-dates our first snapshot
Eligibility Summary
No eligibility information available.
Contact Information
- Pfizer
For direct contact, visit the study record on ClinicalTrials.gov .