OBJECTIVE: To see if progesterone support has a beneficial effect on live birth rate after
frozen embryo transfer in natural cycles. DESIGN: Prospective randomized controlled trial …

STUDY QUESTION Does supplementation with vaginal tablets of progesterone after frozen-
thawed embryo transfer in natural cycles improve the live birth rate? SUMMARY ANSWER …

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 evaluate the effect of progesterone supplementation during the luteal phase on
pregnancy outcome in natural frozen-thawed embyo transfer (FTET) cycles. Methods In this …

Objective To determine whether vaginal progesterone for programmed endometrial
preparation is noninferior to intramuscular progesterone in terms of live birth rates from …

Background There is a lack of consensus on the optimal dose and form of progesterone
supplementation during frozen‐thawed embryo transfer with hormone replacement therapy …

Purpose To evaluate the outcome of frozen-thawed embryo transfer (FET) when freezing
takes place at the pronuclear stage, a retrospective analysis was performed comparing …

OBJECTIVE: The purpose of this study is to assess the effect of luteal phase
supplementation (LPS) on pregnancy rates in human chorionic gonadotropin (hCG)-induced …

Importance The necessity of progesterone supplementation for luteal phase support (LPS) in
natural cycle frozen embryo transfer (NC-FET) cycles warrants further confirmation …

Objective To assess the incidence of P elevation (PE) in natural cycles and evaluate its
effect on frozen–thawed embryo transfer cycles performed in natural cycles (FET-NC). Study …