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A randomized double‐blind placebo‐controlled study with subcutaneous recombinant human erythropoietin in patients with low‐risk myelodysplastic syndromes
Author(s) -
Ferrini Pr,
Alberto Grossi,
Vannucchi Am,
Giovanni Barosi,
Roberta Guar,
Nadia Piva,
Pellegrino Musto,
Enrico Balleari
Publication year - 1998
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1046/j.1365-2141.1998.01085.x
Subject(s) - medicine , placebo , erythropoietin , myelodysplastic syndromes , gastroenterology , anemia , adverse effect , refractory (planetary science) , bone marrow , pathology , biology , alternative medicine , astrobiology
To evaluate the effect of recombinant human erythropoietin (rHuEpo) on the haemoglobin level and transfusion requirement in low‐risk myelodysplastic syndromes (MDS), 87 patients were enrolled in a randomized double‐blind placebo‐controlled study. 44 patients were assigned to epoetin α (150 U/kg/d s.c. for 8 weeks) and 43 to placebo arms. MDS types were homogenous in both groups: refractory anaemia (RA) 47.7–48.8%, refractory anaemia with ringed sideroblasts (RAS) 20.5–25.6%, refractory anaemia with excess of blasts (RAEB) (blasts < 10%) 31.8–25.6%. 14/38 evaluable patients responded to epoetin α versus 4/37 to placebo ( P = 0.007). 50% of RA responded to epoetin α versus 5.9% to placebo ( P = 0.0072), RAS 37.5% v 18.2% ( P = 0.6) and RAEB 16.7% v 11.1% ( P = 1.00). 60% of non‐pretransfused patients responded to epoetin α (Hb 8.35 ± 0.73 to 10.07 ± 1.87 g/dl), whereas a slight decrease was observed in the placebo group (8.4 ± 0.66 to 8.19 ± 0.92 g/dl) ( P = 0.0004). Percentage of transfused patients was similar in both arms. Basal erythropoietin (Epo) serum levels > 200 mU/l predicted for a non‐response. At week 4 sTfR levels were increased > 50% in responders ( P = 0.013), whereas an increase < 18% predicted for non‐response ( P = 0.006). Leucocyte and platelet counts were not influenced by epoetin α treatment. Adverse events occurred in 31.8% of the rHuEpo‐treated versus 42.9% of the placebo‐treated patients ( P = 0.2), and seven patients did not complete the course. In conclusion, rHuEpo was effective in the treatment of low‐risk MDS. RA subtype, no transfusions prior to rHuEpo therapy, and low basal Epo levels were associated with higher probability of response. Soluble transferrin receptor level at the fourth week was an early predictor of response.