Overview of cancer-related anemia: focus on the potential role of darbepoetin alfa.
Cancer-associated anemia is common and has many causes, including the effects of the underlying disease and cancer treatment. The effect of anemia on patients with cancer was not appreciated fully until relatively recently. Several well-designed studies have demonstrated the relationship between anemia and fatigue, and the effect of fatigue on quality of life. These data have resulted in a greater awareness of anemia in cancer and have increased the use of recombinant human erythropoietin (r-HuEPO, epoetin alfa) therapy for the treatment of anemia. Recombinant HuEPO produces a hemoglobin response in 50-60% of patients with cancer; however, to obtain this response rate, frequent dosing is required. Darbepoetin alfa, a recently developed erythropoietic protein, has a longer half-life than that of r-HuEPO, enabling less frequent dosing, and has a greater in vivo activity. In studies of patients with cancer who develop anemia, darbepoetin alfa has proved to be well tolerated and effective, and its advantages make it a potential improved treatment option for anemia in these patients.
Valley
Amy W
AW
Pharmacy Healthcare Solutions, Grapevine, Texas 76051, USA. avalley@insight.rr.com
D000740:Anemia / Q000188:drug therapy* / Q000209:etiology; D002986:Clinical Trials as Topic; D000068256:Darbepoetin alfa; D000068817:Epoetin Alfa; D004921:Erythropoietin / Q000009:adverse effects / Q000031:analogs & derivatives* / Q000097:blood / Q000494:pharmacology* / Q000627:therapeutic use*; D006397:Hematinics / Q000009:adverse effects / Q000494:pharmacology* / Q000627:therapeutic use*; D006801:Humans; D009369:Neoplasms / Q000150:complications*; D011994:Recombinant Proteins
D006397:Hematinics; D011994:Recombinant Proteins; D004921:Erythropoietin; D000068256:Darbepoetin alfa; D000068817:Epoetin Alfa