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CompletedNCT00037557Updated Dec 27, 2007

Study Evaluating rFIX; BeneFIX in Severe Hemophilia B

A Phase 3 interventional study of BeneFIX in Hemophilia B, sponsored by Wyeth is now a wholly owned subsidiary of Pfizer. Completed at 6 sites in United States. Open to participants aged Up to 5 Years. Per ClinicalTrials.gov, last updated 2007-12-27.

Sponsored by Wyeth is now a wholly owned subsidiary of Pfizer · Phase 3, Interventional, and Treatment

Phase
Phase 3
Study type
Interventional
Enrollment
20
Allocation
Non-randomized
Ages
Up to 5 Years
Sex
All
01

Study summary

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.

02

Conditions studied

  • Hemophilia B

Keywords

  • Hemophilia B
03

In context

Hemophilia A

866 studies on the registry are indexed under Hemophilia A; 137 are open to participants now.

This study's enrollment of 20 is below the median of 28 across 512 interventional studies indexed under Hemophilia A.

Browse Hemophilia A studies →

Lead sponsor

Wyeth is now a wholly owned subsidiary of Pfizer is the lead sponsor of 472 studies on the registry; none are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
Up to 5 Years
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Severe hemophilia B
  • Less than 5 years of age
  • In the investigator's judgment, the patient and/or caregiver will be compliant to study procedures

Exclusion criteria

Exclusion Criteria:

  • A currently detectable FIX inhibitor. A family history of inhibitors will not exclude the patient.
  • Impaired liver function
  • Impaired renal function
05

Study design

Phase
Phase 3
Primary purpose
Treatment
Allocation
Non-randomized
Intervention model
Single group
Masking
None (open label)
Enrollment
20 participants

Interventions

  • DrugBeneFIX
06

What researchers measure

Primary outcomes

  1. 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.

Secondary outcomes

  1. To measure the incremental recovery of rFIX in children following a 75-IU/kg bolus infusion.

07

Study locations

6 sites
  • Aurora, Colorado 80262, United States
  • Detroit, Michigan 48201, United States
  • New Brunswick, New Jersey 08903, United States
  • Chapel Hill, North Carolina 27599-7220, United States
  • Dayton, Ohio 45404, United States
  • Houston, Texas 77030, United States
08

References and documents

Publications

  • Rendo P, Smith L, Lee HY, Shafer F. Nonacog alfa: an analysis of safety data from six prospective clinical studies in different patient populations with haemophilia B treated with different therapeutic modalities. Blood Coagul Fibrinolysis. 2015 Dec;26(8):912-8. doi: 10.1097/MBC.0000000000000359. PubMed 26196195 ↗
09

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Dec 27, 2007, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT00037557
Lead sponsor
Wyeth is now a wholly owned subsidiary of Pfizer
First posted
May 20, 2002
Start date
Sep 2002
Completion
Nov 2007
Last update
Dec 27, 2007

Study contacts

Medical Monitor, MD
study director · Wyeth is now a wholly owned subsidiary of Pfizer
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in Dec 2007. You cannot join it, but the record below documents what was studied.

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