Follicle-stimulating hormone administered at the time of human chorionic gonadotropin trigger improves oocyte developmental competence in in vitro fertilization cycles: A randomized, double-blind, placebo-controlled trial

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Abstract

Objective: To determine whether an additional follicle-stimulating hormone (FSH) bolus administered at the time of the human chorionic gonadotropin (hCG) trigger can improve the developmental competence of the oocyte. Design: Randomized, double-blind, placebo-controlled, clinical trial. Setting: Academic medical center. Patient(s): Women undergoing a long agonist suppression in vitro fertilization (IVF) protocol for treatment of infertility. Intervention(s): FSH bolus at time of hCG trigger versus placebo. Main Outcome Measure(s): Primary outcome; fertilization; secondary outcomes: oocyte recovery, implantation rate, and clinical and ongoing pregnancy/live birth rates. Result(s): A total of 188 women (mean age: 36.2 years; range: 25 to 40 years) were randomized. Fertilization (2PN/#oocyte) was statistically significantly improved in the treatment arm (63% vs. 55%) as was the likelihood of oocyte recovery (70% vs. 57%). There was no statistically significant difference in clinical pregnancy rate (56.8% vs. 46.2%) or ongoing/live birth rate (51.6% vs. 43.0%). Conclusion(s): Improvements in IVF success rates have largely been due to optimization of embryo culture and stimulation protocols; less attention has been directed toward methods to improve induction of final oocyte maturation. This was the first randomized, double-blind, placebo-controlled trial to modify the ovulation trigger to improve oocyte competence, as demonstrated by the statistically significant improvement in fertilization. Copyright © 2011 American Society for Reproductive Medicine, Published by Elsevier Inc.

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Lamb, J. D., Shen, S., McCulloch, C., Jalalian, L., Cedars, M. I., & Rosen, M. P. (2011). Follicle-stimulating hormone administered at the time of human chorionic gonadotropin trigger improves oocyte developmental competence in in vitro fertilization cycles: A randomized, double-blind, placebo-controlled trial. Fertility and Sterility, 95(5), 1655–1660. https://doi.org/10.1016/j.fertnstert.2011.01.019

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