Purpose of the Study: To compare the effectiveness of GnRH agonist downregulation alone versus GnRH agonist combined with letrozole in improving pregnancy outcomes in women with adenomyosis undergoing frozen embryo transfer (FET). Research Question: Is the combined use of GnRH agonist and letrozole more effective than GnRH agonist downregulation alone in achieving better ongoing pregnancy rates in adenomyosis cases undergoing FET? Hypothesis: Null Hypothesis (Hâ‚€): The combined use of GnRH agonist and letrozole is not more effective than GnRH agonist downregulation alone in achieving a higher ongoing pregnancy rate in adenomyosis cases undergoing FET. Study Outcomes: Primary Outcome: Ongoing pregnancy rate at 12 weeks of gestation.
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Ongoing pregnancy rate
Timeframe: 12 weeks of gestation