About this trial
Assessing whether the use of hyaluronan-enriched transfer medium can increase the cumulative ongoing pregnancy rate
Eligibility criteria
This trial accepts healthy volunteersQualifiers
Patients with own oocytes/embryos;
Patients with female age at 1st OR in the study <40 year;
Patients planned for a 2nd oocyte retrieval, with no clinical ongoing pregnancy after the previous oocyte retrieval
Patients planned for a 3rd oocyte retrieval with no clinical ongoing pregnancy after previous oocyte retrievals
Disqualifiers
None
Trial design
Parallel
Treatments tested in this trial
use of hyaluronan-enriched transfer medium
Other interventionIn the study group, an embryo transfer will be performed in hyaluronan-enriched transfer medium
Treatment groups
Trial outcomes
Primary outcomes
number 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.
Secondary outcomes
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)