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  • Title: Corifollitropin alfa followed by hpHMG in GnRH agonist protocols. Two prospective feasibility studies in poor ovarian responders.
    Author: Polyzos NP, Corona R, Van De Vijver A, Blockeel C, Drakopoulos P, Vloeberghs V, De Vos M, Camus M, Humaidan P, Tournaye H.
    Journal: Gynecol Endocrinol; 2015; 31(11):885-90. PubMed ID: 26172925.
    Abstract:
    In two prospective uncontrolled feasibility trials, we examined the effect of corifollitropin alfa (CFA) followed by highly purified human menopausal gonadotrophin (hpHMG) in a short flare-up gonadotropin-releasing hormone (GnRH) agonist and a long GnRH agonist protocol for women with poor ovarian response. Overall, 45 patients were treated with short flare-up and 47 patients with the long agonist protocol. All patients received a single dose of 150 μg CFA, followed by 300 IU hpHMG 7 days later, triggering with 10 000 IU hCG, CSI and day 3 embryo transfer. Ongoing pregnancy rates (OPRs) did not differ between the short 15.6% and the long 17% agonist protocol (p = 0.85). Among patients treated with the short flare-up protocol, OPRs were 20% for younger patients (<40 years old) and 12% in older women (≥40 years old), p = 0.68. Similarly, in patients treated with the long agonist protocol younger women had an OPR of 26.7% versus 12.5% in older women, p = 0.23. Among patients treated with the short flare-up, live births rate were 15% and 4.3% for younger (<40 years old) and older patients (≥40 years old), respectively, p = 0.32. Similarly, in patients treated with the long agonist protocol, live births rate were 25% and 12.9% for younger (<40 years old) and older patients (≥40 years old), respectively, p = 0.41. None of the patients reported any serious adverse event related to treatment. According to our results, CFA followed by hpHMG in a short flare-up or long GnRH agonist protocol appears to be a feasible option for poor ovarian responders. Large phase III trials are mandatory prior to introduction in clinical practice.
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