Epoetin-b is used to treat patients with metastatic cancer undergoing chemotherapy to alleviate the symptoms of anaemia, reduce the risk of blood transfusions and improve quality of life. This meta-analysis of 12 randomised, controlled studies evaluated the impact of epoetin-b on overall survival, tumour progression and thromboembolic events (TEEs). A total of 2297 patients were included in the analysis (epoetin-b, n ¼ 1244; control, n ¼ 1053; 65% solid and 35% nonmyeloid haematological malignancies). A prespecified subgroup analysis assessed the effects in patients with a baseline Hbp11 g dl À1 , corresponding to current European Organisation for Research and Treatment of Cancer (EORTC) guidelines. No statistically significant effect on mortality was observed with epoetin-b vs control, both overall (hazard ratio (HR) ¼ 1.13; 95% CI: 0.87, 1.46; P ¼ 0.355) and in patients with baseline Hbp11 g dl À1 (HR ¼ 1.09; 95% CI: 0.80, 1.47; P ¼ 0.579). A trend for a beneficial effect on tumour progression was seen overall (HR ¼ 0.85; 95% CI: 0.72, 1.01; P ¼ 0.072) and in patients with an Hbp11 g dl À1 (HR ¼ 0.80; 95% CI: 0.65, 0.99; P ¼ 0.041). An increased frequency of TEEs was seen with epoetin-b vs control (7 vs 4% of patients); however, TEEs-related mortality was similar in both groups (1% each). The results of this meta-analysis indicate that when used within current EORTC treatment guidelines, epoetin-b has no negative impact on survival, tumour progression or TEEs-related mortality.