Abstract
e20616 Background: New data are available from two trials of ESA use in patients with breast cancer receiving chemotherapy. We conducted a meta-analysis of trials of ESA use in this population. Methods: A literature search identified reports from 1997-2012 that included mortality data from controlled ESA trials (epoetin alfa, epoetin beta, darbepoetin alfa, biosimilars) in patients with breast cancer receiving chemotherapy. We used data from company databases for Amgen Inc. or Janssen Products LP studies and published data for other studies. Random-effects odds ratios (OR) were calculated to compare results for patients randomized to ESA to patients randomized to control. Analyses were stratified by metastatic stage; mixed stage or treatment; and adjuvant/neoadjuvant treatment. Results: We analyzed 9 studies (N = 4713; ESA n = 2346, control n = 2367) (Table).The overall stratified random-effects OR for death was 1.17 (95% confidence interval, 0.99-1.39). Details are presented in the Table. Conclusions: Overall survival OR remains consistent with prior data after including recent results. [Table: see text]
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