Assessing whether the use of hyaluronan-enriched transfer medium can increase the cumulative ongoing pregnancy rate
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Enrollment
400
In the study group, an embryo transfer will be performed in hyaluronan-enriched transfer medium
Leuven University Fertility Center
Leuven, Belgium
RECRUITINGnumber of transfers needed to reach ongoing pregnancy
The primary outcome parameter is the number of transfers needed to reach ongoing pregnancy (ongoing defined as a pregancy with a viable fetus with FHB at 12 weeks of pregnancy), as a time-to-event outcome variable. Patients that do not reach pregnancy, are censored at their last transfer.
Time frame: ongoing defined as a pregancy with a viable fetus with FHB at 12 weeks of pregnancy
number of transfers needed to reach clinical pregnancy, life birth, miscarriage, multiple pregnancy
clinical pregnancy is defined as a pregnancy with at least one intrauterine (IU) or extrauterine (EU) fetal sac at 6-7 weeks of pregnancy)
Time frame: until Live birth: 9 months after ET
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