Comparison of progesterone protocol versus gonadotropin-releasing hormone antagonist protocol in terms of preventing premature LH surge and assisted reproductive technology outcome in infertile women: a randomized controlled trial.

Introduction: Progesterone can be used instead of GnRH agonists and antagonists in order to avert a premature LH surge during controlled ovarian stimulation (COS) protocol. Nonetheless, there is limited knowledge regarding its utilization. Thus, this study compared the effects of progesterone and GnRH antagonists (GnRH-ant) on premature LH surges and assisted reproductive technology (ART) results in infertile women undergoing ART.