Clinical trials

Preimplantation genetic testing for aneuploidies (PGT-A) is commonly used in IVF but requires embryo biopsy and shows limited benefit in egg donation cycles. Non-invasive PGT-A (niPGTA), based on the analysis of cell-free embryonic DNA in spent culture media, offers a promising biopsy-free alternative. This prospective, blinded study in egg donation cycles will evaluate whether niPGTA-detected aneuploidy is associated with implantation failure and pregnancy loss, assessing its potential clinical value as a non-invasive embryo selection tool.

To determine whether pretreatment with transdermal testosterone increases the number of cumulus-oocyte complexes (COCs) obtained after ovarian stimulation by more than 1.5 in patients with low ovarian reserve and androgen receptor polymorphism undergoing intracytoplasmic sperm injection (ICSI).

Multicenter prospective observational cohort study, comparing ongoing pregnancy rates in natural cycles for euploid embryo transfer in patients who present endometrial compaction at the time of the transfer versus those who have a stable or greater endometrial thickness with respect to the estrogenic phase.