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  • Title: Effectiveness of human menopausal gonadotropin versus recombinant follicle-stimulating hormone for controlled ovarian hyperstimulation in assisted reproductive cycles: a meta-analysis.
    Author: van Wely M, Westergaard LG, Bossuyt PM, van der Veen F.
    Journal: Fertil Steril; 2003 Nov; 80(5):1086-93. PubMed ID: 14607553.
    Abstract:
    OBJECTIVE: To compare the effectiveness of hMG and recombinant FSH after down-regulation for ovulation stimulation in assisted reproductive cycles. DESIGN: Meta-analysis. SETTING: Infertility centers providing assisted reproductive techniques. PATIENT(S): Two thousand thirty women undergoing IVF or ICSI. INTERVENTIONS: Ovarian hyperstimulation with hMG or recombinant FSH after down-regulation. MAIN OUTCOME MEASURE(S): Clinical pregnancy rate, ongoing pregnancy/live birth rate, gonadotropin dose used, oocytes retrieved, implantation rate, miscarriage rate, and multiple pregnancy rate. RESULT(S): Six randomized controlled trials were included. In all trials, the group of women treated with hMG had higher pregnancy rates. Pooling the five trials that used a long GnRH agonist protocol resulted in a higher clinical pregnancy rate for hMG compared with recombinant FSH (relative risk, 1.22 [95% CI, 1.03 to 1.44]). However, there was no evidence of a difference in rates of ongoing pregnancy or live birth per woman between hMG recipients and recombinant FSH recipients (relative risk, 1.20 [95% CI, 0.99 to 1.45]). No differences were found in gonadotropin dose used, oocytes retrieved, miscarriage rate, or multiple pregnancy rate. CONCLUSION(S): Use of hMG resulted in higher clinical pregnancy rates than did use of recombinant FSH in IVF/ICSI cycles after GnRH agonist down-regulation in a long protocol.
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