The recent controversy regarding the use of pill for cycle planning in GnRH antagonists IVF cycle has driven the search for new ways to plan IVF cycles in order to avoid weekends or to equally distribute the workload. Recently, mid-late luteal phase oral estrogens seem to be as good as the pill. The investigators will compare OCP vs oral estrogens to plan the initiation of IVF cycles.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
NONE
Enrollment
118
30 microgram of ethinylestradiol plus levonorgestrel daily for 12 to 16 days
4mg estradiol valerate from cycle day 20 till the day before the initiation of the cycle
IVI Madrid
Madrid, Madrid, Spain
Implantation rate
number of embryonic sacs visible by ultrasound divided by the number of embryos transferred
Time frame: 20 days after the embryo transfer
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