Clinical trials

This single-center randomized sibling-oocyte controlled trial evaluates whether co-culture with induced pluripotent stem cell (iPSC)-derived ovarian support cells (OSCs) improves rescue in vitro maturation (r-IVM) outcomes of surplus germinal vesicle (GV) oocytes collected during routine IVF treatment. Eligible GV oocytes from each enrolled participant are allocated within participant in a 1:1 ratio to either conventional r-IVM or r-IVM with OSC co-culture. The primary outcome is the metaphase II (MII) maturation rate after 24 hours of culture. Secondary outcomes include fertilization rate, day 3 embryo formation, good-quality day 3 embryo rate, blastocyst formation, and good-quality blastocyst rate. All embryos generated in the study are for research purposes only and will not be used for clinical embryo transfer.

This cross-sectional study aims to establish reference intervals for iron biomarkers-including serum iron, ferritin, total iron-binding capacity (TIBC), and transferrin saturation (TSAT)-in healthy pregnant women during the first trimester. Additionally, the study will investigate the current prevalence of non-anemic iron deficiency (NAID) in this population. By applying strict inclusion and exclusion criteria to eliminate potential confounding factors, the study seeks to provide a reliable baseline for evaluating iron status and early detection of iron deficiency without anemia among pregnant women.