Infertility
Conditions
Keywords
Frozen-thawed embryo transfer, FET protocols
Brief summary
Evaluation of endometrial preparation using either hormonal therapy or ovarian stimulation prior to frozen-thawed embryo transfer (FET) in patients without polycystic ovarian syndrome (PCOS)
Detailed description
Women will be randomly divided into two groups; one will be subjected to endometrial preparation by hormone replacement therapy (HRT) and the other will be subjected to minimal ovarian stimulation (MOS). Women in the HRT group will be given estradiol valerate 4 mg daily from day 2 to day 12 of the cycle then the endometrial thickness will be assessed on day 13 by transvaginal sonography (TVS). If the endometrium is ≥ 8 mm and of moderate echogenicity, luteal phase support (using progesterone supplements) will be started but if the endometrium is \< 8 mm, estradiol valerate will be continued until reaching appropriate endometrial thickness and echogenicity then the luteal phase support will be started. Women in the MOS group will be given clomiphene citrate in dose of 100-150 mg daily for 5 days (from day 2 to day 6 of the cycle) then switched to low dose gonadotropin (75-150 IU daily) followed by monitoring of the follicular growth (folliculometry) ); starting from day 10 of the stimulation cycle and repeated every 2 days. Final oocyte maturation will be induced by administration of human chorionic gonadotropin (HCG) when there will be at least one leading follicle \> 18 mm in diameter followed by luteal phase support (using progesterone supplements) after 48 hours. In both groups, FET will be planned in the appropriate day according to the stage that the embryos have been cryopreserved in it.
Interventions
DRUGEstradiol valerate
Women will be given estradiol valerate 4 mg daily from day 2 to day 12 of the cycle then the endometrial thickness will be assessed on day 13 by transvaginal sonography (TVS). If the endometrium is ≥ 8 mm and of moderate echogenicity, luteal phase support (using progesterone supplements) will be started but if the endometrium is \< 8 mm, estradiol valerate will be continued until reaching appropriate endometrial thickness and echogenicity then the luteal phase support will be started.
Women will be given clomiphene citrate in dose of 100-150 mg daily for 5 days (from day 2 to day 6 of the cycle) then switched to low dose gonadotropin (75-150 IU daily) followed by monitoring of the follicular growth (folliculometry) ); starting from day 10 of the stimulation cycle and repeated every 2 days. Final oocyte maturation will be induced by administration of human chorionic gonadotropin (HCG) when there will be at least one leading follicle \> 18 mm in diameter followed by luteal phase support (using progesterone supplements) after 48 hours.
Sponsors
Mansoura University
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE
Eligibility
Sex/Gender
FEMALE
Age
20 Years to 38 Years
Healthy volunteers
No
Inclusion criteria
* Women without PCOS as defined by the Rotterdam criteria. * Presence of at least 2 cryopreserved good quality cleavage-stage embryo (good quality cleavage-stage embryos display stage-specific cell division, have blastomeres of fairly equal size with few to no cytoplasmic fragments).
Exclusion criteria
* PCOS or polycystic ovary on ultrasound scan. * Moderate or severe endometriosis. * Hydrosalpinx. * Uterine abnormalities or myoma. * Previous uterine surgery.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Clinical pregnancy rate | 6 weeks after embryo transfer | Number of clinical pregnancies (defined as presence of at least one intrauterine gestational sac with fetal pole and cardiac activity on TVS scan at 4-6 weeks after the ET) divided by the number of ET procedures |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Implantation rate | 6 weeks after embryo transfer | Number of gestational sacs on TVS scan at 4-6 weeks after ET divided by the number of transferred embryos |
| Miscarriage rate | 12 weeks gestational age | Number of first trimester miscarriages (before 12 weeks gestational age) divided by the number of clinical pregnancies |
Countries
Egypt
Contacts
Primary ContactMohamed S Abdelhafez, Dr
Outcome results
None listed