Sacha Stormlund, Negjyp Sopa, Julie Lyng Forman, Anne Zedeler, Jeanette Bogstad, Lisbeth Prætorius, Henriette Svarre Nielsen, Anna Klajnbard, Anne Lis Englund, Søren Ziebe, Nina la Cour Freiesleben, Christina Bergh, Peter Humaidan, Anders Nyboe Andersen, Anja Pinborg, Kristine Løssl
The effect of late-follicular phase progesterone elevation (LFPE) during ovarian stimulation on reproductive outcomes in ART treatment remains controversial, but recent studies indicate lower pregnancy rates with rising progesterone levels. This study aims to investigate the prevalence of late-follicular phase progesterone elevation (LFPE) and possible impact on ongoing pregnancy rate after fresh or frozen blastocyst transfer in a sub-study setting of a randomised controlled trial. A total of 288 women were included (n=137 and n=151 in the fresh transfer and freeze-all group, respectively)...
December 2024: Human Fertility: Journal of the British Fertility Society