Journal
REPRODUCTIVE BIOMEDICINE ONLINE
Volume 20, Issue 4, Pages 565-567Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.rbmo.2009.12.019
Keywords
endogenous LH; GnRH antagonist protocol; IVF; rFSH
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Funding
- Schering-Plough, a Division of Merck Co.
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The possible relationship between endogenous LH concentrations and clinical outcome was evaluated in 750 patients treated with a standardized gonadotrophin-releasing hormone (GnRH) antagonist and recombinant FSH (rFSH)-only protocol. Serum LH concentrations were measured during stimulation by a central laboratory and patients were stratified into quantiles of P75. The P25 values were 3.38 IU/l, 0.93 IU/l, and 0.91 IU/l on stimulation days 1, 5, and 8, respectively. The ongoing pregnancy rates per started cycle of patients within the P75 subsets and ranged in the various subsets between 35.0% and 39.5%. In keeping with previous, smaller studies, these findings demonstrate that in good prognosis, non-obese patients endogenous LH in a GnRH antagonist protocol is able to support treatment with rFSH only. (C) 2009, Reproductive Healthcare Ltd. Published by Elsevier Ltd. All rights reserved.
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