A Dose Conversion Study of Epoetin Alfa in Subjects With the Anemia of Chronic Kidney Disease.

May 17, 2011 updated by: Ortho Biotech Products, L.P.

Evaluation of Dose Conversion From Variable Dosing Intervals of Darbepoetin Alfa to Variable Dosing Intervals of Epoetin Alfa in Patients With the Anemia of Chronic Kidney Disease

The purpose of this study was to evaluate hemoglobin stability in subjects who had received darbepoetin alfa for a minimum of 3 months prior to study entry who were then converted to epoetin alfa at the same dosing frequency to maintain a hemoglobin level of 12 plus or minus 1 g/dL (range 11-13- g/dL).

Study Overview

Status

Terminated

Conditions

Intervention / Treatment

Detailed Description

This was a prospective, multicenter study in subjects with chronic kidney disease. The study was designed to address hemoglobin stability after drug conversion to epoetin alfa in subjects previously receiving darbepoetin alfa therapy.

The study was to enroll approximately 180 subjects with chronic kidney disease. Eligible subjects were those with chronic kidney disease who were receiving darbepoetin alfa every two, three, or four weeks for a period of 3 months or more and who had a stable hemoglobin (Hb) level at study entry of 12 g/dL (plus or minus 1 g/dL (11-13 g/dL). Subjects receiving darbepoetin alfa every 2, 3 or 4 weeks were switched over to epoetin alfa which they received at the same dosing frequency ( every 2, 3 or 4 weeks) upon study entry and throughout the 24 week study period. Clinical safety was assessed for the occurrence and severity of adverse events. Blood tests (Complete Blood Count, platelets, reticulocyte count, iron, were assessed at pre-determined intervals throughout the study. Vital signs (e.g. Blood pressure) were checked at each visit. Subjects received epoetin alfa at the same dosing frequency that they had previously received darbepoetin alfa. Subjects received 20,000 Units (U) epoetin alfa subcutaneously (SC) every two weeks; 30,000 U epoetin alfa SC every 3 weeks; or 40,000 U epoetin alfa SC every 4 weeks.

Study Type

Interventional

Enrollment (Actual)

8

Phase

  • Phase 4

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

18 years and older (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • Subjects with chronic kidney disease defined as serum creatinine of 1.5 to 6.0 mg/dL for women and 2.0 to 6.0 mg/dL for men
  • glomerular filtration rate (GFR) within 15-60 mL/min
  • Subjects on darbepoetin alfa for 3 months or more and with a stable entry hemoglobin level of 12 (plus or minus 1 g/dL
  • range 11-13 g/dL)
  • Subjects receiving darbepoetin alfa on an every two, three, or four week dosing schedule
  • female subjects with a reproductive potential must have a negative ruine pregnancy test within 7days of the first dose of study drug.

Exclusion Criteria:

  • No uncontrolled high blood pressure as assessed by the primary physician
  • No known hypersensitivity to mammalian cell-derived products
  • No known hypersensitivity to human albumin
  • Not receiving dialysis or scheduled to receive dialysis during the course of the study
  • No severe congestive heart failure (New York Heart Association Class IV)
  • No known severe stable or unstable coronary artery disease.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Non-Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

What is the study measuring?

Primary Outcome Measures

Outcome Measure
The primary objective was to evaluate the proportion of subjects who maintained hemoglobin levels within 10% of entry levels and/or a range of 11-13 g/dL for the 24-week duration of the study.

Secondary Outcome Measures

Outcome Measure
The secondary objective was to evaluate safety in subjects with chronic kidney disease throughout the study

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Ortho Biotech Products, L.P.

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

Helpful Links

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

June 1, 2003

Study Completion (Actual)

September 1, 2003

Study Registration Dates

First Submitted

June 29, 2007

First Submitted That Met QC Criteria

July 2, 2007

First Posted (Estimate)

July 3, 2007

Study Record Updates

Last Update Posted (Estimate)

May 19, 2011

Last Update Submitted That Met QC Criteria

May 17, 2011

Last Verified

April 1, 2010

More Information

Terms related to this study

Keywords

Additional Relevant MeSH Terms

Other Study ID Numbers

  • CR005104

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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