Luteal Phase Support With Daily Administration of Gonadotropin-releasing Hormone Agonist Compared to Progesterone/Estradiol in IVF/ICSI Cycles With Ovulation Triggering With GnRH-a

Purpose: To determine the efficacy and safety of daily injections of gonadotropin-releasing hormone agonist in comparison with the standard strategy of supporting the luteal phase in protocols with gonadotropin-releasing hormone antagonists, in patients at risk of developing ovarian hyperstimulation syndrome and changing the trigger to a gonadotropin-releasing hormone agonist. Materials and Methods: This prospective, controlled, randomized study, conducted at the Clinic of the Federal State Budgetary Educational Institution of Higher Education of the KubSMU of the Ministry of Health of Russia, included 102 patients at risk of developing ovarian hyperstimulation syndrome, who were on protocols with gonadotropin-releasing hormone antagonists and changing the ovulation trigger to a gonadotropin-releasing hormone agonist. All patients underwent blastocyst transfer on day 5. Patients of the first group (n = 51) received as support for the luteal phase gonadotropin-releasing hormone agonist daily 0.2 mg, subdermally, patients of the second group (n = 51) progesterone 10 mg 3 times a day, orally and estradiol 1 mg 3 times a day, transdermal. The level of progesterone on the day of transfer, the incidence of clinical pregnancy, and the incidence of ovarian hyperstimulation syndrome in both groups were compared.