As has been the case for patients with chronic renal failure,treatment with erythropoiesis-stimulating agents (ESAs) hassubstantially raised the hemoglobin concentrations of hundredsof thousands of patients with cancer, diminishing their needfor red-cell transfusions during chemotherapy. At the same time,use of these agents has raised safety concerns because theycan cause thromboembolic events and increase "the risk for deathand for serious cardiovascular events when administered to targeta hemoglobin of greater than 12 g/dL," according to the black-boxwarning that the Food and Drug Administration (FDA) added tothe prescribing information in March 2007.1 Therefore, the . . . [Full Text of this Article]
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Dr. Steinbrook (rsteinbrook@attglobal.net) is a national correspondent for the Journal.
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