Abstract
Corifollitropin alpha has been demonstrated to be non-inferior to other gonadotropins in reproductive outcomes. However, its impact on follicular ovarian responsiveness has never been evaluated. Follicular Output Rate (FORT) is an option for objective assessment of the follicular responsiveness. A prospective study was conducted with 306 infertile patients undergoing in vitro fertilisation. Ovarian stimulation protocol was performed with a single dose of 100 μg (<60kg) or 150 μg (≥60kg) corifollitropin alpha in group 1 (n = 147), and 150-300 IU/day human menopausal gonadotropin in group 2 (n = 150). Comparing ovarian stimulation between corifollitropin alpha and human menopausal gonadotropin, no differences regarding FORT were found (40.0% for group 1 versus 40.83% for group 2; p = 0.930). Patients treated with corifollitropin alpha had a higher number of embryos when compared with human menopausal gonadotropin group (3.0 for group 1 versus 2.0 for group 2; p = 0.04). Other secondary outcomes preset were similar between groups. Therefore, corifollitropin alpha can be an excellent option to simplify in vitro fertilisation treatment due to the “patient-friendly” protocol.
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