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CompletedNCT00744445Updated Sep 1, 2008

Erythropoietin Therapy in Patients With Chronic Renal Failure: A Study of Time Dependent Activity

A Phase 2 interventional study of r-HuEPO in Hemodialysis, Chronic Renal Failure and Anemia, sponsored by Sunnybrook Health Sciences Centre. Completed. Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2008-09-01.

Sponsored by Sunnybrook Health Sciences Centre · Phase 2, Interventional, and Treatment

Phase
Phase 2
Study type
Interventional
Enrollment
46
Allocation
Randomized
Ages
18 Years and older
Sex
All
01

Study summary

The purpose of this research study was to determine if the activity of erythropoietin (r-HuEPO) is time dependent when given to chronic renal failure patients at three different times of day.

Read the detailed description

This phase-II crossover study was designed to test if the activity of erythropoietin is time dependent. Patients with chronic renal failure on hemodialysis requiring r-HuEPO to maintain adequate levels of hematocrit are eligible for the study. Patients were administered r-HuEPO subcutaneously three times per week, 50 U/kg, rounded to the nearest 2000 units. r-HuEPO will be administered until the hematocrit rises from the baseline level of 20-24% to the target level of 30-34%. This will be repeated three times, each at different times of day, either 0800, 1500 or 2200 hrs and the order of these will be randomly determined. Each patient will complete all three of the phases.

02

Conditions studied

  • Hemodialysis
  • Chronic Renal Failure
  • Anemia

Keywords

  • hemodialysis
  • erythropoietin
03

In context

Renal Insufficiency

1,995 studies on the registry are indexed under Renal Insufficiency; 173 are open to participants now.

This study's enrollment of 46 is close to the median of 43 across 1,504 interventional studies indexed under Renal Insufficiency.

Browse Renal Insufficiency studies →

Lead sponsor

Sunnybrook Health Sciences Centre is the lead sponsor of 566 studies on the registry; 134 are open to participants now.

Of its 6 completed or terminated interventional studies of FDA-regulated products, 2 (33%) have results posted.

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

04

Who can participate

Ages eligible
18 Years and older
Sexes eligible
All
Accepts healthy volunteers
No

Inclusion criteria

  • Chronic renal failure patients requiring hemodialysis and requiring r-HuEPO to maintain adequate hematocrit levels
  • Serum ferritin level > 200 micrograms/L and transferrin saturation > 15%
  • Serum erythropoietin level less than 500 mu/ml (when off r-HuEPO)
  • Prior therapy with r-HuEPO
  • An adequate program of dialysis established
  • Informed consent signed

Exclusion criteria

Exclusion Criteria:

  • Adocumented cause of anemia other than chronic renal disease
  • Symptoms of unstable coronary artery disease
  • Poorly controled hypertension
  • Known seizure disorder
  • Other active inflammatory or infective disorders
  • Other disorders that may diminish the response of the bone marrow to r-HuEPO
05

Study design

Phase
Phase 2
Primary purpose
Treatment
Allocation
Randomized
Intervention model
Crossover assignment
Masking
None (open label)
Enrollment
46 participants (actual)

Study arms

  • Active comparator
    0800

    r-HuEPO administered at 0800 hrs

    Drug: r-HuEPO

  • Active comparator
    1500

    r-HuEPO administered at 1500 hrs

    Drug: r-HuEPO

  • Active comparator
    2200

    r-HuEPO administered at 2200 hrs

    Drug: r-HuEPO

Interventions

  • Drugr-HuEPO

    r-HuEPO 50 U/kg s.c. three times per week. The dose is rounded to the nearest 2000 unites.

06

What researchers measure

Primary outcomes

  1. Time for hematocrit to rise

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Sep 1, 2008, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT00744445
Lead sponsor
Sunnybrook Health Sciences Centre
First posted
Sep 1, 2008
Start date
Oct 1993
Primary completion
Aug 1998
Completion
Aug 1998
Last update
Sep 1, 2008

Study contacts

Georg Bjarnason, MD, FRCPC
principal investigator · Sunnybrook Health Sciences Centre

Oversight

Data monitoring committee
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Aug 2008. You cannot join it, but the record below documents what was studied.

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