RESUMEN
PURPOSE: To evaluate the efficacy and safety of self-injections of the prefilled recombinant human chorionic gonadotropin (r-hCG) in a syringe in assisted reproductive technology (ART) treatment for the maturation trigger (MT), as compared to self-injections of conventional hCG and intranasal administration of gonadotropin-releasing hormone agonist (GnRH-a). METHODS: Between January and April, 2017, 396 patients who underwent oocyte retrieval were recruited. Of these, 396 patients were classified into three groups, according to the types of MT: (1) the urinary human chorionic gonadotropin (u-hCG) group that consisted of patients who had a self-injection of u-hCG (n = 127); (2) the GnRH-a group that received nasal administration of GnRH-a (n = 159); and (3) the r-hCG group that had a self-injection of r-hCG (n = 110). Several ART outcomes were evaluated. RESULTS: The mature oocyte retrieval rate was not different between the u-hCG, r-hCG, and GnRH-a groups and the fertilization and cleavage rates were similar between the three groups. The clinical pregnancy rates did not significantly differ between the GnRH-a group and the u-hCG group; however, it was significantly lower in the GnRH-a group, compared to the r-hCG group. No difference was observed in the incidence of moderate or more severe ovarian hyperstimulation syndrome among the three groups. CONCLUSION: The self-injection of the prefilled r-hCG is a favorable MT for ART patients.