U.S., Nov. 29 -- ClinicalTrials.gov registry received information related to the study (NCT07252622) titled 'Progesterone Levels and Frozen Embryo Transfer Outcomes' on Nov. 14.
Brief Summary: Frozen embryo transfers (FET) now represent the majority of all embryo transfer cycles, and upwards of 60% live births in United States are now attributable to frozen embryo transfers (1). Exogenous progesterone for endometrial decidualization and luteal phase support is thought to be critical to both optimizing endometrial receptivity for implantation as well as sustaining early pregnancy prior to reliable secretory activity of the early placenta.
The purpose of this study is to:
1. Determine the prevalence of low serum progesterone levels (less t...