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Last Updated: Nov 18, 2006 - 1:55:25 PM

Darbepoetin Alfa Channel
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Latest Research : Haematology : Anaemia : Darbepoetin Alfa

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Anemia drug reduces transfusions and chemotherapy-related fatigue
Aug 28, 2002 - 8:15:00 PM, Reviewed by: Dr. Sanjukta Acharya

By 12 weeks, patients receiving darbepoetin alfa required about half as many blood transfusions, nearly a third fewer units of blood, had elevated hemoglobin levels, and experienced significantly less fatigue than patients given the placebo.

 
Patients treated with darbepoetin alfa (AranespTM) for chemotherapy-induced anemia may require fewer blood transfusions and feel less fatigued than patients receiving a placebo, concludes a new study in the August 21 issue of the Journal of the National Cancer Institute.

Chemotherapy-related anemia often results from decreased production of the hormone erythropoietin, a hormone that stimulates the formation of red blood cells. Anemia can be treated with red blood cell transfusions, but risks associated with this procedure include adverse reactions and infection.

A newer approach to treating anemia has been the use of recombinant human erythropoietin (rHuEPO). However, to sufficiently increase levels of hemoglobin (the oxygen-carrying component of red blood cells) and reduce the number of blood transfusions, a patient must receive treatment three times a week. The erythropoietic protein darbepoetin alfa, an analogue of rHuEPO, stays in the blood for longer periods of time and can be given less frequently.

In randomized, placebo-controlled phase III trial of the safety and efficacy of darbepoetin alfa, Johan Vansteenkiste, M.D., Ph.D., of the University Hospital Gasthuisberg in Belgium, and his colleagues from the Aranesp 980297 Study Group, treated 321 anemic patients receiving chemotherapy for lung cancer with either weekly injections of darbepoetin alfa or a placebo.

By 12 weeks, patients receiving darbepoetin alfa required about half as many blood transfusions, nearly a third fewer units of blood, had elevated hemoglobin levels, and experienced significantly less fatigue than patients given the placebo. Adverse events were similar to those in cancer patients receiving chemotherapy, and were similar in both groups. Overall survival rates were not statistically significantly different between the two treatment groups.

The dosing advantage of darbepoetin alfa could allow patients to miss less time from work and potentially increase compliance, the researchers say. They add that further studies are under way to examine the possibility to administering darbepoetin alfa at an even lower frequency, such as every two to three weeks.

In an accompanying editorial, Claudette G. Varricchio, DSN, RN, FAAN, of the National Institute of Nursing Research in Bethesda, Md., and Jeff A. Sloan, Ph.D., of the Mayo Clinic in Rochester, Minn., note that researchers now recognize cancer as a chronic disease. The editorialists point to the increasing need to incorporate the management of treatment-related symptoms into clinical trials, and they praise the current study as a successful effort to do just that.

"Clinical trials of various approaches to the management of symptoms related to cancer or its treatment are needed to promote the well-being of persons with cancer, especially in the context of cancer as a chronic condition," they write. "These clinical trials must be as rigorous as those that evaluate cancer treatments."
 

- August 21 issue of the Journal of the National Cancer Institute.
 

jncicancerspectrum.oupjournals.org

 
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Vansteenkiste J, Pirker R, Massuti B, Barata F, Font A, Fiegl M, et al. Double-blind, placebo-controlled, randomized phase III trial of darbepoetin alfa in lung cancer patients receiving chemotherapy. J Natl Cancer Inst 2002;94:121120.

Editorial: Varricchio C, Sloan J. The need for and characteristics of randomized, phase III trials to evaluate symptom management in patients with cancer. J Natl Cancer Inst 2002;94:11845.


Related Darbepoetin Alfa News
FDA approves extended dosing of Aranesp
Study Suggests Drug For Chemotherapy-Induced Anemia Can Be Effectively Administered Tri-Weekly
Interim Aranesp data suggest major response in anemic patients with MDS
Interim data suggest major response with Aranesp(R) in anemic patients with MDS
Aranesp dosed every three weeks achieved and maintained target hemoglobin levels
Final results demonstrate Aranesp dosed every two weeks is comparable to Epoetin alfa dosed weekly
Anemia drug reduces transfusions and chemotherapy-related fatigue


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