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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Highly purified FSH is as efficacious as recombinant FSH for ovulation induction in women with WHO Group II anovulatory infertility: a randomized controlled non-inferiority trial.

BACKGROUND: The objective of this study was to demonstrate non-inferiority of a highly purified urinary follicle stimulating hormone (HP-FSH) preparation compared with a recombinant (rFSH) preparation with respect to ovulation rate (primary end-point). METHODS: This was a randomized, open-label, assessor-blind, multinational study. Women with anovulatory infertility WHO Group II and resistant to clomiphene citrate were randomized (computer-generated list) to stimulation with HP-FSH (n=73) or rFSH (n=78) using a low-dose step-up protocol. The non-inferiority limit was prespecified at -20%. RESULTS: The ovulation rate was 85.2% (51/62) with HP-FSH and 90.9% (60/66) with rFSH (per-protocol population), and non-inferiority was demonstrated [95% confidence interval: -16.9; 5.6]. No differences were noted between groups in number of follicles>or=12 mm, >or=15 mm or >or=18 mm, mono-follicular development, pregnancy rates, endometrial thickness, number of ovarian stimulation syndrome cases or frequency of injection site reactions/pain. The singleton live birth rate was 15% in both groups (11/73 with HP-FSH and 12/78 with rFSH). CONCLUSIONS: This urinary HP-FSH preparation is non-inferior compared with a rFSH preparation with respect to ovulation rate in anovulatory WHO Group II women failing to ovulate or conceive on clomiphene citrate.[1]

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