Immediate Versus Postponed Single Blastocyst Transfer in Programmed or Stimulated Cycle Frozen Embryo Transfer
Recruiting
N/A
Interventional Study
Infertility
IVF
No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
At a Glance
- Age
- 18 – 40
- Sex
- Female
- Study type
- Interventional
- Purpose
- Treatment
- Participants needed
- 484 (estimated)
- Sponsor
- Rigshospitalet, Denmark · Other
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About This Trial
The aim of this randomized controlled trial is to examine whether single blastocyst transfer in the first cycle after oocyte retrieval (immediate) is non-inferior to single blastocyst transfer in a subsequent cycle (postponed) in stimulated or programmed cycle frozen embryo transfer (FET). The primary outcome is live birth rate.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Eligible for FET in a programmed- or stimulated cycle immediately following a fresh embryo transfer or freeze all cycle
* Oligo-anovulatory women (cycle length \> 35 days)
* Ovulatory women (cycle length 21-35 days)
* At least one vitrified day 5 or 6 blastocyst with Gardner s…
Contacts