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AnemiaPhase 3NCT00269971

A Study to Determine an Effective Dose of Epoetin Alfa to Decrease the Number of Units of Blood Required to be Transfused During Hip Replacement Surgery.

A Phase 3 study testing epoetin alfa in people with Anemia and Blood Transfusion, run by Janssen-Ortho Inc., Canada.

Withdrawn

Withdrawn. The study stopped before anyone enrolled.

Official record
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Trial summary

The purpose of this study is to determine an effective dose of epoetin alfa to be administered prior to surgery, to decrease the need for blood transfusions during hip replacement. Epoetin alfa is a genetically engineered protein that stimulates red blood cell production. Read more about this study

Who is it for?
Ages 18 to 99 years
Conditions the study is for
Anemia, Blood Transfusion, Orthopedic Surgery
What is being tested?
epoetin alfa
How many people
0 participants
Where
No sites listed yet
Study dates
May 1996to Apr 1999
Phase
Phase 3
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 99 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • Patients scheduled for first-time hip replacement surgery
  • having no major medical conditions
  • having a hemoglobin level of 98 - 137 grams per liter
  • having adequate iron stores
  • not participating in a self-donated blood program

Who cannot join

  • Patients with a history of rheumatoid arthritis, blood disorders, recent bleeding episodes or an iron deficiency
  • or having a history of seizures or uncontrolled high blood pressure (diastolic blood pressure > 100 mmHg)

About this study

Official title: A Parallel Group Placebo-Controlled Study to Determine an Effective Dose Regimen for EPREX� (Epoetin Alfa) Sterile Solution to Reduce Transfusion Requirements in Patients Undergoing Major Elective Orthopedic Surgery

The purpose of this study is to determine an effective dose of epoetin alfa to be administered prior to surgery, to decrease the need for blood transfusions during hip replacement. Epoetin alfa is a genetically engineered protein that stimulates red blood cell production.

Read the detailed description

Major surgical procedures may require blood transfusions both during and after the operation. Agents that can increase the rate of red blood cell production would reduce the need for blood transfusions. Epoetin alfa is a genetically engineered form of a natural hormone, erythropoietin, that stimulates red blood cell production. This is a randomized, double-blind, multicenter study in patients scheduled for first time hip replacement surgery. The study compares the effectiveness of 2 different doses of epoetin alfa (20,000 units or 40,000 units per week) for reducing the need for blood transfusions during the surgery. Eligible patients will be randomly assigned to one of three treatment groups: epoetin alfa 20,000 units per week, epoetin alfa 40,000 units per week, or placebo. Patients will be treated with study medication once a week for 4 weeks before their scheduled surgery. Effectiveness will be determined by the number of transfusions required during surgery. Other factors that determine effectiveness will be: the level of hemoglobin (the oxygen-carrying component of red blood cells) and the percentage of red blood cells in the patient's blood (hematocrit) prior to surgery; the number of developing red blood cells (reticulocytes); the iron stores in the patient's blood prior to surgery; the patient's quality of life after the surgery; and the time that elapses after surgery before the patient is discharged from the hospital. Safety evaluations will include the incidence of blood clots in the deep veins, the incidence and severity of other adverse events, and changes in clinical laboratory tests, vital signs, and physical examination findings throughout the study. The study hypothesis is that patients treated with epoetin alfa before hip replacement surgery will require fewer blood transfusions during the surgery compared with patients treated with placebo, and that the lower epoetin alfa dose (20,000 units per week) is as effective as the higher epoetin alfa dose (40,000 units per week). Patients will receive 20,000 units or 40,000 units of epoetin alfa injected under the skin once weekly for 4 weeks, or a matching placebo injection containing human serum albumin.

Being tested
epoetin alfa
Keywords
hip replacement, hip replacement surgery, surgery, anemia, transfusions, blood, blood transfusions
Medical subject headings
Anemia

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • epoetin alfaDrug

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Transfusion requirements at the time of surgery; hemoglobin and hematocrit levels, reticulocyte count, and iron stores prior to surgery; time to hospital discharge after surgery, and the patient's quality of life after surgery.

Secondary outcomes (1)
  1. Deep-vein blood clots; other adverse events, changes in clinical laboratory tests, vital sign measurements, and physical examination findings.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted26 Dec 2005 (estimated)
  2. Study startMay 1996
  3. Study completionApr 1999

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase 3
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Enrolment
0 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT00269971
Sponsor's protocol ID
CR005908
Status last verified
Sep 2011
First submitted
22 Dec 2005
Last updated
20 Sep 2016
Results posted
No

Questions about this trial

What is this clinical trial studying?

A Phase 3 study testing epoetin alfa in people with Anemia and Blood Transfusion, run by Janssen-Ortho Inc., Canada.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 5 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: withdrawn, as of the sponsor's last update on 20 Sep 2016. Status can change between updates, so confirm with the study contact before making plans.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

What does this phase mean?

Phase 3 studies compare the treatment with the current standard treatment or a placebo in a large group, to confirm how well it works and watch for side effects.

Not every study follows the same path, and some studies (observational studies, device studies) have no phase.

Are results available for this study?

The study was withdrawn before enrolling participants, so there are no results.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Transfusion requirements at the time of surgery; hemoglobin and hematocrit levels, reticulocyte count, and iron stores prior to surgery; time to hospital discharge after surgery, and the patient's quality of life after surgery.. It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 20 Sep 2016.

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