Title
Cryopreserved-thawed Embryo Transfer With or Without Gonadotropin Releasing Hormone Agonist
Cryopreserved-thawed Embryo Transfer in Down or Non-down Regulated Hormonally Controlled Cycles: a Prospective, Randomized Study
Phase
Phase 3Lead Sponsor
Cairo UniversityStudy Type
InterventionalStatus
Completed No Results PostedIndication/Condition
InfertilityIntervention/Treatment
progesterone leuprolide estradiol ...Study Participants
310Traditionally, the use of GnRH-a suppression was considered essential for adequate endometrial hormonal modulation in cryopreserved-thawed embryo transfer cycles. Several studies, however, have questioned its necessity for controlled endometrial preparation. Using a high dose of estradiol from day 1 of the cycle will suppress the gonadotroph, preventing folliculogenesis and excessive secretion of LH, allowing adequate endometrial preparation without GnRH-a.
The transfer of cryopreserved-thawed embryos inside the uterus aiming to achieve pregnancy
Serum estradiol and serum progesterone levels in blood on the day of start of progesterone supplementation
GnRH agonist given on day 21 of the cycle preceding the embryo transfer
Estradiol started on day1 of the cycle for endometrial prepartaion
progesterone as luteal phase support start after endometrium is well prepared
Cryopreserved-thawed embryo transfer cycle, with endometrial preparation using GnRHa followed by external estradiol and progesterone. The GnRHa depot from will be given on day 21 of the preceding cycle, on day 1 of the transfer cycle, the patient will receive 6 mg/ day of estradiol followed up on day 12 of the cycle, if the endometrium is less than 8 mm, till day 15 of the cycle estradiol will be increased to 8 mg/day until 8 mm or more. Then, serum estradiol and progesterone levels are collected, and progesterone 800 mg vaginal suppository will be added and embryo transfer performed 2 to 3 days later.
Cryopreserved-thawed embryo transfer cycle, with endometrial preparation using external estradiol and progesterone only. On day 1 of the transfer cycle, the patient will receive 6 mg/ day of estradiol and followed up on day 12 of the cycle, if the endometrium did not reach 8 mm, till day 15 of the cycle the dose will be increased to 8 mg/day until the endometrium is 8 or more mm. When the endometrium is ready, serum estradiol and progesterone levels are collected, then progesterone 800 mg vaginal suppository will be added and embryo transfer performed 2 to 3 days later.
Inclusion Criteria: 20-35 years BMI 20-30 Regular menses. No PCOS, no endometriosis No uterine anomalies or lesions No severe male factor All grade 1 cleaved stage embryos Exclusion Criteria: Less than 20 or more than 35 years BMI less than 20 or more than 30 Irregular cycles PCOS or endometriosis Uterine anomalies or lesions Severe male factor Poor quality embryos for transfer Severe