Cumulative Live Birth Rate With eSET After Preimplantation Genetic Screening Versus Conventional In-vitro Fertilization

The purpose of this randomized clinical trial is to compare the efficacy and safety with transfer of embryos selected by next generation sequencing (NGS) versus conventional morphological criteria. Subjects with 3 or more blastocysts on day 5 of embryo culture will be randomized to the PGS or IVF group. A Freeze-all strategy and a single frozen blastocyst transfer will be performed in both PGS and IVF groups. The primary outcome is the cumulative live birth after transfers of up to 3 single blastocycsts in both groups.