Continuous Double Ovarian Stimulation.

Continuous Ovarian Stimulation in DUOSTIM Cycles.

To evaluate the efficacy of the weekly use of corifollitropin alfa in double ovarian stimulation process and to compare it to the conventional protocol with daily medication administration.

The purpose of this pilot study is to evaluate the efficacy of the weekly use of corifollitropin alfa in terms of ovarian stimulation results and its biological outcomes (total number of oocytes retrieved) in case of ovarian stimulation cycles in double stimulation modality (DUOSTIM) and in comparison with the conventional DUOSTIM protocol: daily administration of gonadotropins.

Inclusion Criteria:

• Patients with indication for DUOSTIM protocol
• Maximum age of 43 years (up to one day before their 44th birthday) at the beginning of the stimulation process.
• Ability to participate and comply with the study protocol.
• To have given written consent

Exclusion Criteria:

• Finding of ovarian pathology at the time of initiation of stimulation: e.g. ovarian cysts.
• Concurrent participation in another study.