ArticleCureus2024
Efficacy of Epoetin Alfa in Managing Symptomatic Anaemia in Low-Risk Myelodysplastic Syndromes: A Retrospective Analysis.
Article in Cureus, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background Myelodysplastic syndromes (MDS) are clonal myeloid disorders characterised by ineffective haematopoiesis, leading to anaemia that often requires dependence on red blood cell (RBC) transfusions. Epoetin alfa (Eprex®) is now a mainstay in the management of symptomatic anaemia in low-risk MDS patients, reducing transfusion dependence and improving the quality of life in this patient group. Objective This retrospective study aimed to assess the efficacy of epoetin alfa in treating symptomatic anaemia in low-risk MDS patients, focusing on transfusion independence and its relationship with baseline erythropoietin (EPO) levels and haemoglobin (Hb) response. Methods Data from 56 patients with low-risk MDS treated with epoetin alfa at Norfolk and Norwich University Hospital, Norwich, United Kingdom, between 2018 and 2023 were retrospectively analysed. Baseline EPO levels, transfusion history, Hb response, and the duration of transfusion independence were assessed. Statistical analyses were performed to evaluate the correlation between baseline characteristics and treatment outcomes. Results Among the patients, 98.2% had baseline EPO levels below the 500 IU/L threshold, with a median EPO level of 74.3 IU/L. Following an eight-week trial of 30,000 units of epoetin-alfa, 41.1% of patients showed improved Hb levels, 41.1% maintained stable Hb levels, and 17.9% experienced a decline. A significant correlation was found between lower baseline EPO levels (<250 IU/L) and a positive treatment response (p = 0.0065). Additionally, patients who required fewer transfusions before treatment had longer durations of transfusion independence (correlation coefficient = -0.40, p = 0.015). Dose escalation to 60,000 units provided a benefit to 53.3% of patients with initially stable Hb levels. The average duration of transfusion independence was 8.1 months, and patients with improved Hb levels had the longest periods of transfusion independence (p = 0.005). Conclusion Epoetin alfa is an effective therapy for managing symptomatic anaemia in low-risk MDS patients. This study highlights its efficacy and provides valuable predictive information, particularly showing that patients with lower baseline EPO levels are more likely to respond to treatment. While prior transfusion dependence did not significantly predict response to therapy in this cohort, it was associated with the duration of transfusion independence.
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