A Study to Determine the Safety of Epoetin Alfa and Whether Epoetin Alfa Can Reduce the Need for Blood Transfusions in Patients After Major Orthopedic Surgery.

This study has been completed.
Sponsor:
Information provided by:
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
ClinicalTrials.gov Identifier:
NCT00270036
First received: December 22, 2005
Last updated: May 17, 2011
Last verified: November 2010
  Purpose

The purpose of this study is to determine the safety of epoetin alfa and to determine the effectiveness of epoetin alfa in reducing the need for blood transfusions after major orthopedic surgery. Epoetin alfa is a genetically engineered protein that stimulates red blood cell production.


Condition Intervention Phase
Blood Transfusion
Orthopedic Procedures
Anemia
Drug: epoetin alfa
Phase 2

Study Type: Interventional
Study Design: Allocation: Randomized
Endpoint Classification: Safety/Efficacy Study
Intervention Model: Parallel Assignment
Masking: Double-Blind
Primary Purpose: Treatment
Official Title: A Double-Blind, Placebo-Controlled Study to Determine the Safety of r-HuEPO and Whether r-HuEPO Can Reduce Post-Operative Transfusion Requirements in Subjects Undergoing Major Orthopedic Surgery

Resource links provided by NLM:


Further study details as provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:

Primary Outcome Measures:
  • Transfusion requirements following surgery; Changes in hematocrit, hemoglobin, and reticulocyte count from the start of the study to the end of the study

Secondary Outcome Measures:
  • Adverse events; Changes in clinical laboratory test results, vital signs, and physical examination findings

Enrollment: 1
Study Start Date: April 1991
Study Completion Date: October 1991
Detailed Description:

Patients undergoing major orthopedic surgery frequently 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, placebo-controlled, parallel group, multicenter study. The study compares the effectiveness of epoetin alfa in reducing the need for blood transfusions in patients who are expected to require at least 2 units of blood following major orthopedic surgery. Eligible patients will be randomly assigned to receive either epoetin alfa (100 or 300 U/kg, depending upon their body weight) or a matching placebo, by injection beneath the skin starting 10 days before scheduled surgery, on the day of surgery (after surgery), and for 4 days after surgery. Additionally, all patients will start taking an oral iron supplement at least 10 days before their scheduled surgery. Effectiveness will be determined by the number of transfusions required following surgery, and on changes in hematocrit (iron-containing pigment in red blood cells), hemoglobin (oxygen-carrying component of red blood cells), and reticulocyte (immature red blood cells) levels from the start of the study to the end of the study. Safety evaluations will include the incidence and severity of 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 will require fewer blood transfusions after surgery than patients treated with placebo. Epoetin alfa (300 U/kg or 100 U/kg), or matching placebo, by injection beneath the skin beginning 10 days before scheduled surgery and ending 4 days after surgery.

  Eligibility

Ages Eligible for Study:   18 Years and older
Genders Eligible for Study:   Both
Accepts Healthy Volunteers:   No
Criteria

Inclusion Criteria:

  • Patients scheduled for major orthopedic surgery who are expected to require transfusion of at least 2 units of red blood cells
  • who are unwilling or unable to participate in a transfusion program wherein a patient's own blood is donated before surgery
  • having no significantly abnormal blood or urine test results
  • having a hematocrit <= 45%

Exclusion Criteria:

  • Patients with any blood disease, significant heart and blood vessel disease or signs and symptoms of other significant disease and/or dysfunction
  • having signs and symptoms of significant and ongoing blood loss
  • having a seizure disorder, uncontrolled high blood pressure, or infections or cancers that may make it difficult to respond to the study drug
  • received medication known to suppress the formation of red blood cells within 1 month before the start of the study
  • received a blood transfusion within 1 month before the start of the study
  Contacts and Locations
Choosing to participate in a study is an important personal decision. Talk with your doctor and family members or friends about deciding to join a study. To learn more about this study, you or your doctor may contact the study research staff using the Contacts provided below. For general information, see Learn About Clinical Studies.

Please refer to this study by its ClinicalTrials.gov identifier: NCT00270036

Sponsors and Collaborators
Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
Investigators
Study Director: Johnson & Johnson Pharmaceutical Research & Development, L.L. C. Clinical Trial Johnson & Johnson Pharmaceutical Research & Development, L.L.C.
  More Information

Additional Information:
No publications provided

ClinicalTrials.gov Identifier: NCT00270036     History of Changes
Other Study ID Numbers: CR005902
Study First Received: December 22, 2005
Last Updated: May 17, 2011
Health Authority: United States: Food and Drug Administration

Keywords provided by Johnson & Johnson Pharmaceutical Research & Development, L.L.C.:
Blood transfusion
epoetin alfa
epogen
erythropoietin
orthopedic procedures
orthopedic surgery

Additional relevant MeSH terms:
Epoetin alfa
Hematinics
Hematologic Agents
Therapeutic Uses
Pharmacologic Actions

ClinicalTrials.gov processed this record on October 16, 2014