Under current practice, 67 participants will be stimulated with a single injection of 100 mg, sc of Corifollitropin alpha (Elonva®). From day 6 stimulation and even prior to induction of ovulation day, 0.25 mg / day was administered sc ganirelix (Orgalutran®). From day 8 stimulation and depending on the ovarian response, you can add recombinant FSH (Puregon) up to 150 IU by Puregon Pen® device. In the presence of 3 or more follicles ≥17 mm, ovulation is induced with a single dose of 0.2 mg Decapeptyl 6500u or hCG (Ovitrelle) if there is no risk of OHSS, and 36 hours later he held the follicular puncture oocyte retrieval.

Under current practice, 67 participants will be stimulated with a daily dose of recombinant FSH. Administration of recombinant FSH (Puregon) starts at an initial dose of 150-225 IU / day by the Puregon Pen® device. From day 6 stimulation 0.25 mg / day administered sc ganirelix (Orgalutran®). From this day may also vary the dose of recombinant FSH according ovarian response. In the presence of 3 or more follicles ≥17 mm, a single dose of 0.2 mg or Decapeptyl hCG 6500u (Ovitrelle) is given if there is no risk of OHSS, and 36 hours then held follicular puncture for recovering oocytes.

Under current practice, 67 participants will be stimulated with HP-hMG, following the same pattern described for the group of recombinant FSH. In this case, the initial dose is 225-300 IU / day of HP-hMG (Menopur®). From day 6 stimulation 0.25 mg / day administered sc ganirelix (Orgalutran®). From this day may also vary the dose of HP-hMG according ovarian response. In the presence of 3 or more follicles ≥17 mm, a single dose of 0.2 mg Decapeptyl 6500u or hCG (Ovitrelle) is given if there is no risk of OHSS and 36 hours then held the follicular puncture for oocyte retrieval .