STUDY QUESTION Does an individualised luteal phase support (iLPS), according to serum
progesterone (P4) level the day prior to euploid frozen embryo transfer (FET), improve …

Background Endometrial preparation with hormone replacement therapy (HRT) is the
preferred regimen for clinicians due to the opportunity to schedule the day of embryo transfer …

Purpose The purpose of this study is to investigate whether progesterone (P4) levels on the
day of frozen-thawed embryo transfer (FET) to a hormonally prepared endometrium …

Objective To investigate the association between luteal serum progesterone levels and
frozen embryo transfer (FET) outcomes. Design Systematic review and meta-analysis …

Background Progesterone (P4) is essential for support of the endometrium and implantation
of an embryo in the normal menstrual cycle. In programed frozen embryo transfer cycles …

Research question What factors determine serum progesterone concentrations the day
before cryopreserved embryo transfer in artificially prepared cycles? Design Retrospective …

Background: The transfer of cryopreserved embryos can be timed with ovulation in a natural
cycle or after artificially preparing the endometrium with exogenous hormones …

Objective To analyze the impact on live birth rates (LBRs) of the individualized luteal phase
support (termed iLPS) in patients with low serum progesterone (P) levels compared with …

STUDY QUESTION Is the chance of a live birth following IVF treatment and fresh embryo
transfer affected by early and mid-luteal serum progesterone (P4) levels? SUMMARY …

Abstract STUDY QUESTION Are progesterone (P) levels on the day before natural cycle
frozen embryo transfer (NC-FET) associated with live birth rate (LBR)? SUMMARY ANSWER …