Impact of FSH Dosage During Ovarian Stimulation for IVF/ICSI in Granulosa Cells

"Participants commence ovarian stimulation on day 2 or 3 of their menstrual cycle with a daily dosage of 150 IU rec-FSH. The dosage will remain constant throughout the course of the stimulation. From the morning of the 5th stimulation day, GnRH-antagonist will be administered daily to prevent LH-rise. As soon as ≥ 3 follicle of a size of 17mm are seen, 0.3 mg GnRH-Agonist will be administered for final oocyte maturation. During ovarian stimulation, follicle puncture procedures with the aspiration of follicular fluid will be performed at the following time:~* one follicle on the morning of day 5, before the administration of the first GnRH-antagonist~* one follicle of the size of 12 to 14 mm, when at least 2 to 3 follicles have reached a size of 12 to 14 mm~* two follicles (= pre-ovulatory follicle) on the morning of the day of final oocyte maturation.~Oocyte retrieval of all other follicles will be carried out 36 hours after injection of the medication for final oocyte maturation."

"Participants commence ovarian stimulation on day 2 or 3 of their menstrual cycle with a daily dosage of 300 IU rec-FSH. The dosage will remain constant throughout the course of the stimulation. From the morning of the 5th stimulation day, GnRH-antagonist will be administered daily to prevent LH-rise. As soon as ≥ 3 follicle of a size of 17mm are seen, 0.3 mg GnRH-Agonist will be administered for final oocyte maturation. During ovarian stimulation, follicle puncture procedures with the aspiration of follicular fluid will be performed at the following time:~* one follicle on the morning of day 5, before the administration of the first GnRH-antagonist~* one follicle of the size of 12 to 14 mm, when at least 2 to 3 follicles have reached a size of 12 to 14 mm~* two follicles (= pre-ovulatory follicle) on the morning of the day of final oocyte maturation.~Oocyte retrieval of all other follicles will be carried out 36 hours after injection of the medication for final oocyte maturation."