In vitro fertilization (IVF) is a common procedure used to assist couples who have difficulty conceiving a pregnancy. IVF is a process where oocytes (eggs) are retrieved from a woman's ovaries and fertilized with sperm in the laboratory. In order to maximize the number of oocytes that can be retrieved, a women undergoes ovarian stimulation with recombinant follicle stimulating hormone (FSH). Typically 6-20 oocytes are retrieved, but in some cases there is a limited response to the stimulation, producing a limited number of oocytes. This is called poor ovarian response. This study is designed to objectively compare two treatment regimens currently advocated in clinical practice, but never compared directly. The purpose is to assess ovarian response to starting treatment at the end of the preceding cycle may increase the number of developing oocytes.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
20
Follitropin beta
Ganirelix acetate
University of Pennsylvania Reproductive Research Unit
Philadelphia, Pennsylvania, United States
Number of oocytes retrieved for IVF
Time frame: One cycle
Number of follicles >10mm on day of human chorionic gonadotropin (hCG) administration;
Time frame: 1 cycle
Number of days of stimulation;
Time frame: 1 cycle
Estradiol level on the day of hCG administration;
Time frame: 1 cycle
Clinical pregnancy rate per transfer: defined as the presence of an intrauterine sac on transvaginal ultrasound;
Time frame: 1 cycle
Delivery rate per transfer;
Time frame: 1 cycle
Safety (incidence of ovarian torsion, severe risk of ovarian hyperstimulation syndrome, enlarging hemorrhagic cysts, and serious adverse events)
Time frame: 1 cycle
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