What happened next? an analysis of pregnancy outcomes in patients undergoing frozen blastocyst transfer (fbt) following a previously failed cycle in a randomized controlled trial using endometrial receptivity analysis (era)

There is growing demand to apply IVF ‘add-ons’ hoping that it will improve Frozen Embryo Transfers (FBT) outcomes. Endometrial Receptivity Analysis (ERA) is one such test that attempts to predict optimal endometrial receptivity to personalize the timing of FBT. However, several recent data have called into question the efficacy of this test [1]. Recently, an RCT demonstrated that ERA does not improve live birth (LB) from single euploid FBT in an unselected population [2]. Research in this area is critical as ERA is costly, time intensive, and invasive.