Assessing whether Preimplantation Genetic Testing for Aneuploidy (PGT-A) can increase the ongoing pregnancy rate per transferred embryo and can decrease the time to pregnancy and miscarriage rate in patients with Recurrent Implantation Failure (RIF)
Women with recurrent implantation failure (previous transfer of least 4 good quality embryos in at least 3 fresh or frozen cycles)
BMI < 35
Normal hysteroscopy
thin endometrium in previous cycles (<6mm), endometriosis ASRM score III-IV, premature ovarian failure (POF, Bologna criteria), abnormal karyotype, donor oocytes or embryos, PGT-M
Parallel
PGT-A
Procedure/Surgeryovarian stimulation, oocyte aspiration, embryo culture until the blastocyst stage (day 5/6), TE biopsy, vitrification of all embryos in the blastocyst stage, PGT-A by NGS and finally embryo transfer of genetically normal embryos in cumulative frozen-thawed embryo transfer cycles
Control
Procedure/Surgeryovarian stimulation, oocyte aspiration, embryo culture until the blastocyst stage, fresh embryo transfer of the morphologically best embryo on day 5/6, vitrification of supernumerary embryos and embryo transfer in cumulative frozen-thawed embryo transfer cycles if not pregnant from the fresh cycle.
OPR
Ongoing pregnancy rate per embryo transfer
IR
Implantation rate per transferred embryo
Click on the lead sponsor to view all of their trials.
