Atosiban in Women With Previous Implantation Failure and Abnormal Uterine Contractions

This study aims to evaluate the efficacy of atosiban in patients with previous pregnancy failure and abnormal uterine contractions during the peri-embryo transfer period in assisted reproductive technology. The main questions it aims to answer are: * Does the use of atosiban in patients with a history of implantation failure and abnormal uterine contractions affect the live birth rate in single blastocyst transfer cycles (fresh or frozen-thawed embryo transfer)? * Evaluate the differences in efficacy of atosiban regarding perinatal complications and neonatal outcomes, as well as differences in safety concerning miscarriage rates and ectopic pregnancy rates. Researchers will compare atosiban with placebo (a similar substance containing no active medication) to determine whether atosiban is effective in improving live birth rates from single blastocyst transfer cycles (fresh or frozen-thawed embryo transfer) in patients with a history of implantation failure and abnormal uterine contractions. * Participants allocated to the Atosiban group will be administered Atosiban (37.5 mg/5 mL, Tractocile®, Ferring Pharma, Geneva, Switzerland) as an intravenous (IV) bolus of 6·75 mg/0.9 mL in 1 minute at 30 minutes prior to the ET procedure, followed by an IV infusion at a rate of 18 mg/h for 1 hour; after 1 hour, the dose of Atosiban will be reduced to 6 mg/h, with a total dose of 37.5 mg. Participants allocated to the placebo group will receive identical-looking saline infusions for t…

This description comes directly from the study's public registry record.

He Cai  ·  13581613908  ·  caihe@bjmu.edu.cn

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