Letrozole vs artificial cycle for embryo transfer preparation
Part of Hormones & metabolism, Women’s health & pregnancy clinical trials.
This trial compares two ways to prepare the uterus for a frozen embryo transfer: using the hormone letrozole or a standard artificial cycle. The goal is to see which approach works better for people with irregular periods.
Summary written for real people, not researchers, by Clin2.
Who can take part
- You are between 18 and 42 years old.
- You have irregular menstrual cycles (shorter than 21 days, longer than 35 days, or fewer than 8 periods a year).
- You are planning to have a single blastocyst (an early-stage embryo) transferred.
- You are not taking part in any other clinical trial right now.
- You are not allergic to letrozole, Ovitrelle, estradiol valerate, or micronized progesterone.
- You do not have certain uterine issues (like fibroids, adenomyosis, or a structural abnormality) or untreated hydrosalpinx (fluid-filled fallopian tube).
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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