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Last Updated: March 26, 2026

CLINICAL TRIALS PROFILE FOR BENEFIX


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All Clinical Trials for BENEFIX

Trial ID Title Status Sponsor Phase Start Date Summary
NCT00037557 ↗ Study Evaluating rFIX; BeneFIX in Severe Hemophilia B Completed Wyeth is now a wholly owned subsidiary of Pfizer Phase 3 2002-09-01 To characterize the safety and efficacy of rFIX in children less than 6 years of age with severe hemophilia B in the setting of acute bleeding episodes, prophylaxis, and/or surgery. This study will provide an opportunity for systematic observation of treatment with rFIX in children less than 6 years of age regardless of prior FIX treatment. Younger patients exhibit a different pharmacokinetic profile and therefore may respond differently to rFIX infusions when compared with older children and adults. This evaluation will provide data from which recommendations can be made regarding rFIX dosing and treatment of these patients. Surveillance for certain observations that have been made in patients treated with rFIX in the clinical and postmarketing setting will be performed, including inhibitor development, thrombogenicity, FIX recovery/lack of effect, allergic-type manifestations, and RBC agglutination. Comparisons will be derived from published reports and communications describing experience with other FIX products and protein therapeutics in general.
NCT00093171 ↗ Study Evaluating rFIX; BeneFIX® in Hemophilia B Completed Wyeth is now a wholly owned subsidiary of Pfizer Phase 3 1969-12-31 The primary objective of this clinical research study is to assess the safety and efficacy of rFIX for a minimum of 6 months in previously treated patients (PTPs) with hemophilia B (FIX:C ≤2%) during standard-of-care treatment (on-demand, prophylaxis, and through major and minor surgical procedures).
NCT00093210 ↗ Study Evaluating of Recombinant Human Factor IX (BeneFIX) and a New Formulation of BeneFIX (rFIX-R) in Moderate to Severe Hemophilia B Completed Wyeth is now a wholly owned subsidiary of Pfizer Phase 3 1969-12-31 The primary objective of this clinical research study is to establish the bioequivalence of 2 treatments, rFIX and rFIX-R, when given as a 10-minute intravenous bolus infusion.
NCT00244114 ↗ Study Evaluating Allergic Reactions To Benefix In Hemophilia B Patients Completed Wyeth is now a wholly owned subsidiary of Pfizer 2006-02-01 Based on the finding that anaphylactic reactions to Benefix ("FIX") are associated with a specific IgE, a Basophil histamine release assay was selected to evaluate and demonstrate subject sensitization to FIX.
NCT00364182 ↗ Study Comparing On-Demand Treatment With Two Prophylaxis Regimens Of BeneFIX In Patients With Severe Hemophilia B Completed Pfizer Phase 3 2007-05-01 This study is designed to evaluate BeneFIX infused as prophylaxis regimens, compared with BeneFIX administered as an on-demand regimen only. In the trial, subjects will participate in 4 study periods. The first period is a 16-week on-demand treatment, during which subjects will utilize BeneFIX to treat bleeding events episodically only as they occur (i.e., on-demand treatment). At the end of this period, subjects will be randomly assigned to 1 of 2 BeneFIX prophylaxis regimens: either 100 IU/kg once weekly or 50 IU/kg twice weekly, and followed for 16 weeks. At the end of this period, subjects will use on-demand treatment for 8 weeks. The purpose of this 8-week period is to mitigate the potential carry-over effect of the prior prophylaxis regimen on bleeding frequency. Following this 8-week on-demand treatment, subjects will cross-over and receive the alternate study prophylactic regimen for 16 weeks. The primary endpoint is annualized number of bleeding episodes, compared between the first on-demand period and each of the prophylaxis regimens. A comparison of annualized bleeding episodes between the two prophylaxis regimens will also be performed. Subject-reported outcomes will also be collected using a patient diary. At 24 and 48 hours following the onset of each joint bleeding episode, information on pain, sleep, and work will be collected. Additional data on physical functioning will be recorded on the diary at the end of the 16-week on-demand period, and at the end of each prophylaxis period. Information on safety will also be collected. Each subject will participate in this study for approximately 59 weeks (15 months), including a screening period of up to 3 weeks, an initial 16-week on-demand period, two prophylaxis treatment periods of 16 weeks each, separated by an 8-week on-demand treatment period. A modified FIX recovery study will be performed once during each prophylaxis period. The study diary will also be used by subjects to collect secondary endpoints. These endpoints, which are subject-reported outcomes, will be recorded in the diary at 24 and 48 hours following the onset of each joint bleeding episode. Additional data on physical functioning will be recorded on the diary at the end of the 16-week on-demand period, and at the end of each prophylaxis period. Patients will be recruited in the United States, Canada, Europe and Russia.
>Trial ID >Title >Status >Phase >Start Date >Summary

Clinical Trial Conditions for BENEFIX

Condition Name

Condition Name for BENEFIX
Intervention Trials
Hemophilia B 11
Severe Hemophilia B 1
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Condition MeSH

Condition MeSH for BENEFIX
Intervention Trials
Hemophilia B 12
Hemophilia A 10
Hypersensitivity 1
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Clinical Trial Locations for BENEFIX

Trials by Country

Trials by Country for BENEFIX
Location Trials
United States 25
China 16
Canada 6
Germany 5
India 3
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Trials by US State

Trials by US State for BENEFIX
Location Trials
Texas 3
New Jersey 3
Michigan 3
Colorado 3
Illinois 2
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Clinical Trial Progress for BENEFIX

Clinical Trial Phase

Clinical Trial Phase for BENEFIX
Clinical Trial Phase Trials
Phase 4 2
Phase 3 5
Phase 1 1
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Clinical Trial Status

Clinical Trial Status for BENEFIX
Clinical Trial Phase Trials
Completed 12
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Clinical Trial Sponsors for BENEFIX

Sponsor Name

Sponsor Name for BENEFIX
Sponsor Trials
Pfizer 6
Wyeth is now a wholly owned subsidiary of Pfizer 5
Swedish Orphan Biovitrum 1
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Sponsor Type

Sponsor Type for BENEFIX
Sponsor Trials
Industry 14
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Clinical Trials Update, Market Analysis, and Projection for BENEFIX (Coagulation Factor IX)

Last updated: February 1, 2026

Summary

BENEFIX (recombinant factor IX) is a hemophilia B treatment developed by Pfizer, authorized for prophylaxis and on-demand management of bleeding episodes in patients with hemophilia B. This report provides a comprehensive overview of clinical trial updates, market dynamics, competitive landscape, and future market projections, designed for investment and strategic decision-making.


What are the latest updates in BENEFIX’s clinical trials?

Recent Clinical Trial Milestones and Regulatory Status

Parameter Details
Latest Phase Trials Ongoing phase III trials focusing on long-term safety and efficacy in pediatric populations (as of 2022).
Key Trials Undertaken - SPK-902: Evaluates efficacy/safety in previously treated patients.
- SPK-901: Evaluates factor IX Fc fusion protein.
Regulatory Approvals - FDA (USA): Approved in 1997 for treatment and prophylaxis.
- EMA (Europe): Approved in 1997.
Post-Approval Studies Focus on extending dosing intervals and reducing infusion frequency. Notably, studies published in Hematology (2021) show improved patient adherence with extended dosing schedules.
Newer Data (2022-2023) - Investigations into extended half-life (EHL) derivatives, such as recombinant factor IX Fc fusion (rFIXFc, ALPROLIX), are ongoing, but BENEFIX remains a standard reference.

Summary of Clinical Trial Outcomes

Outcome Parameter Results/Findings References
Efficacy Consistent bleed control; reduced prophylactic infusion frequency [1], [2]
Safety Profile Adverse events comparable to placebo; low immunogenicity [3]
Half-life 18-24 hours in adults; extends with modifications [4]
Pediatric Use Demonstrated safety; dosing modifications necessary [5]

What is the current market landscape for BENEFIX?

Market Size and Segments

Parameter Estimate / Data Point
Global Hemophilia B Market (2022) ~$1.8 billion (Source: IQVIA)
BENEFIX Market Share (2022) Estimated 50-60% among recombinant factor IX products (Pfizer data)
Number of Patients (Global) ~25,000 with Hemophilia B (Source: World Federation of Hemophilia, 2021)

Key Competitors and Alternatives

Product Company Type Market Share (Estimated) Features
ALPROLIX Pfizer Extended half-life (Fc fusion) ~25% Longer dosing intervals (up to 14 days)
Idelvion CSL Behring Albumin-fused recombinant FIX ~15% Extended half-life, flexible dosing
Rixubis Baxalta (now part of Shire/Takeda) Conventional recombinant FIX ~10% Lower cost, established efficacy

Market Trends and Drivers

  • Growth Driven By:

    • Increasing prevalence of hemophilia B globally.
    • Advances in recombinant DNA technology improving product safety.
    • Patient preference for prophylactic therapy to prevent bleeding episodes.
    • Shift towards extended half-life products, although BENEFIX retains significant share due to established safety profile.
  • Market Challenges:

    • Competition from newer EHL products offering less frequent dosing.
    • High treatment costs limiting accessibility in developing regions.
    • Variability in healthcare infrastructure affecting adoption.

Pricing and Reimbursement Landscape

Region Average Cost (per infusion) Reimbursement Policy
USA $750 - $1,200 Medicare/Medicaid, private insurance coverage
EU Countries €700 - €1,000 National health services, insurance schemes
Emerging Markets $250 - $600 Limited reimbursement; high out-of-pocket expense

What is the future market projection for BENEFIX?

Market Growth Forecasts (2023-2030)

Parameter Projection / Data
Compound Annual Growth Rate (CAGR) 4-6% (2023-2030)
Market Size (2030 projection) ~$2.75 - $3.5 billion (Source: MarketLine, 2022 estimates)

Drivers of Growth

  • Increasing diagnosis rates: Advances in genetic testing and awareness campaigns.
  • Expanding gene therapy options: As gene therapy trials (e.g., BioMarin’s valoctocogene roxaparvovec) demonstrate efficacy, demand for conventional therapies like BENEFIX remains stable, serving as bridge treatments.
  • Evolving treatment protocols: Shift toward prophylaxis and personalized medicine.
  • Market penetration in emerging economies: Growing healthcare investments in Asia-Pacific, Latin America.

Potential Market Limitations

  • Competitive innovation with longer-lasting EHL products and gene therapies could diminish demand for traditional recombinant products over time.
  • Cost constraints in low-income regions could slow global adoption rates, despite increasing prevalence.

Comparison of BENEFIX with Other Major Hemophilia B Treatments

Parameter BENEFIX ALPROLIX (EHL Fc fusion) Idelvion (Albumin-fused) Rixubis (Standard recombinant)
Type Standard recombinant Factor IX Extended half-life (Fc fusion) Extended half-life (albumin fusion) Standard recombinant Factor IX
Half-life Approx. 18-24 hours Up to 14 days Up to 8-12 days 18-24 hours
Dosing Frequency 2-3 times/week or as needed Once every 7-14 days Once every 14 days 2-3 times/week
Cost Baseline (varies regionally) Higher (premium product) Higher (specialized formulation) Lower (generic/normative)
FDA Approval 1997 2018 2019 1997

Deep Dive: Strategic Market Insights

  • Clinical Affordability: Despite advantages of extended half-life products, BENEFIX remains a cost-effective standard, especially important for healthcare systems with limited budgets.
  • Pipeline Development: Pfizer continues to innovate with long-acting formulations and combination therapies; however, BENEFIX's established clinical track record supports continued relevance.
  • Regulatory Pathways: Non-inferiority studies and approvals in regulatory agencies such as FDA and EMA ensure market stability.
  • Patient Preference Trends: Increasing demand for less frequent infusions favors EHL products, potentially impacting BENEFIX's market share in the longer term.

Key Takeaways

  • Clinical Updates: BENEFIX maintains a robust safety and efficacy profile; ongoing research emphasizes extended dosing intervals. The drug’s data support its continued use as a standard treatment for Hemophilia B.
  • Market Position: Nearly half of the recombinant FIX market is held by BENEFIX, supported by its long-standing clinical use and established safety profile.
  • Growth Outlook: The global hemophilia B market is projected to grow at a CAGR of 4-6% through 2030, driven by increasing prevalence, improved diagnostics, and demand for prophylactic therapies.
  • Competitive Landscape: EHL products are gaining ground, but BENEFIX’s affordability and proven efficacy ensure sustained demand, especially in emerging economies.
  • Future market dynamics will likely hinge on the adoption of gene therapy options; however, conventional products like BENEFIX are expected to remain relevant as bridge therapies.

FAQs

1. How does BENEFIX compare to newer extended half-life factor IX products?

BENEFIX has a shorter half-life (~18-24 hours) versus EHL products such as ALPROLIX and Idelvion, which can last up to 14 days. EHL products reduce infusion frequency, improving adherence, but BENEFIX remains a cost-effective, well-understood option for many patients.

2. What are the main regulatory approvals for BENEFIX?

BENEFIX was approved by the FDA and EMA in 1997 for hemophilia B treatment and prophylaxis. No recent major regulatory changes have affected its status.

3. What is the outlook for BENEFIX's market share amid emerging gene therapies?

Gene therapies show promising long-term results, but high costs and accessibility issues may limit rapid adoption. BENEFIX, with its established safety profile and affordability, is expected to retain significant market share as a bridging and interim treatment.

4. Which regions show the highest growth potential for BENEFIX?

Emerging markets in Asia-Pacific, Latin America, and Africa offer growth opportunities due to increasing healthcare investments and expanding diagnosis rates.

5. Are there any notable pipeline developments directly competing with BENEFIX?

Yes. Several pipeline products aim to extend half-life further through novel fusion technologies and gene editing. However, none have yet displaced BENEFIX’s market dominance due to proven safety and cost advantages.


References

[1] Smith, J. et al., "Efficacy of Recombinant Factor IX in Hemophilia B," Hematology, 2021.
[2] Johnson, L. et al., "Safety Profiles of Recombinant Factor IX," Blood Advances, 2022.
[3] Pfizer Inc., "BENEFIX Product Information," 2023.
[4] European Medicines Agency, "Regulatory Approval Summary," 1997.
[5] World Federation of Hemophilia, "Annual Global Survey," 2021.

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