Clinical Trial: Fresh Versus Vitrified-Warmed Donor Oocytes: Embryological and Clinical Outcomes

U.S., Oct. 30 -- ClinicalTrials.gov registry received information related to the study (NCT07904936) titled 'Fresh Versus Vitrified-Warmed Donor Oocytes: Embryological and Clinical Outcomes' on Oct. 23.

Brief Summary: This multicenter retrospective observational study compares embryological and clinical outcomes following treatment with fresh versus vitrified-warmed donor oocytes at Bocian Fertility Clinic centers in Poland. The study focuses on a standardized allocation strategy in which recipients are intended to receive six mature (metaphase II, MII) donor oocytes. In the vitrified-warmed group, oocytes are cryopreserved at the MII stage and subsequently warmed for use. Oocytes lost during warming are not routinely replaced, allowing th...