Health, economic, and quality-of-life effects of erythropoietin and granulocyte colony-stimulating factor for the treatment of myelodysplastic syndromes: a randomized, controlled trial

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Abstract
In myelodysplastic syndromes (MDS), anemia responds to recombinant human erythropoietin (rHuEPO) alone and in combination with recombinant human granulocyte-colony-stimulating factor (rHuGCSF) in 10% to 20% and in 35% to 40% of patients, respectively. We randomly divided 60 patients with low-grade anemic MDS and serum EPO levels lower than 500 IU/L (500 mU/mL) into 2 groups: rHuEPO + rHuG-CSF (arm A) and supportive care (arm B). After 12 weeks, those who had erythroid responses were given rHuEPO alone for 40 additional weeks. They were also given rHuG-CSF if they had relapses. A response was considered major if the hemoglobin (Hb) level was 115 g/L (11.5 g/dL) or higher and minor Hb increase was 15 g/L (1.5 g/dL) or more or if it remained stable without transfusion. Ten of 24 patients responded in arm A, and 0 of 26 responded in arm B (P = .01). Eight patients in arm A continued rHuEPO therapy alone, and 6 had relapses. Responses were always restored when rHuG-CSF was reintroduced. Mean direct costs per patient were 26 723 euros (€ 26 723) (arm A) and € 8746 (arm B). Quality of life was aszsessed with a Functional Assessment of Cancer Therapy-Anemia (FACT-An) scale. Similar percentages of patients from both arms showed significant clinical improvement. rHuEPO plus rHuG-CSF led to responses in 41.7% of MDS patients. This treatment was expensive. No effect on quality of life was demonstrated. (Blood. 2004;104: 321-327)

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