U.S., Dec. 18 -- ClinicalTrials.gov registry received information related to the study (NCT07288866) titled 'Effect of Vitrification and Warming Media on Pregnancy Rates in the Context of Oocyte Donation' on Dec. 04.
Brief Summary: Vitrification has become the gold standard for oocyte and embryo cryopreservation. Several commercial kits are available on the market, some are designed for specific developmental stages (e.g. oocytes, zygotes, cleavage-stage embryos or blastocysts) and others are suitable for several stages, therefore termed "universal". Oocytes, cleavage-stage embryos and blastocysts display different levels of resistance to cryopreservation, due to stage-specific properties. While the composition and the exposition protocol ...