A Study:the Different Outcomes Between Natural Cycle and Hormone Replacement Cycle in FET

• Status: Unknown status
• Trial end date: 2015-01-01
• Target enrollment: 0
• Participant gender: Female

Summary

There are three main cycle regimens used for endometrial preparation for frozen embryo transfer（FET）: natural cycles (NC) with/without ovulation triggering, hormone replacement therapy cycles (HRT) in which the endometrium is artificially prepared by estrogen and progesterone hormones with/without a gonadotrophin releasing hormone agonist (GnRH-a) down regulation, and ovulation induced cycles (OI) in which follicular development is supported with increasing doses of gonadotrophin hormones and ovulation is induced. At present, there is still no sufficient evidence that which kind of FET cycle regimen to plan more advantage. The purpose of this study was to compare the pregnancy outcome of NC-FET to that of HRT-FET in women with regular cycles.

• Phase: N/A
• Accepts Healthy Volunteers?: Accepts Healthy Volunteers

Details

• Lead Sponsor: Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
• Treatments: Estradiol; Estradiol 17 beta-cypionate; Estradiol 3-benzoate; Estradiol valerate; Hormones; Polyestradiol phosphate; Progesterone

Criteria

Inclusion Criteria:

• Age forty years old or less

• Has regulation Menstruation (cycle 24-35 days) or previous data suggest that normal ovulation

• Frozen embryos number more than three

Exclusion Criteria:

• Has Chocolate cyst or adenomyosis of uterus

• Clear hydrosalpinx

• Uterine scar or intrauterine adhesion and endometrial thickness <7mm before ovulation

• recur thick endometrium（<7mm）

• repeated implantation failure（≥3 times）

• Cancel the cycle because of having no dominant follicle in the NC+FET before or the growth of endometrium not good in the HRT+FET before