Ovulation trigger timing in natural cycle frozen embryo transfer
Part of Women’s health & pregnancy clinical trials.
This trial compares triggering ovulation when the lead follicle is smaller versus larger than 17mm in a modified natural cycle. The goal is to see if timing the trigger differently improves pregnancy rates for women having a frozen embryo transfer.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You have at least one expanded blastocyst (a day-5 or day-6 embryo) to transfer.
- You have regular, natural menstrual cycles (without fertility drugs to stimulate ovulation).
- You have agreed to have your frozen embryo transfer in a modified natural cycle (using medication to time ovulation).
- Your uterine cavity is normal (no fibroids, polyps, or scar tissue inside the womb).
- You do not have fluid collecting in your uterine cavity.
Quick eligibility check
Answer a few plain-language questions, based on this study's own requirements, to get a preliminary sense of fit.
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