The Effects of Two Endometrium Preparation Protocols in Frozen-thawed Embryo Transfer in Women With Irregular Cycles

• Status: Unknown status
• Trial end date: 2015-01-01

Summary

There are two main cycle regimens used for endometrial preparation for frozen embryo transfer （FET) in women with irregular cycles: 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 frozen embryo transfer cycle regimen to plan more advantage. The purpose of this study was to compare the pregnancy outcome of hormone replacement therapy cycles (HRT) and ovulation induced cycles (OI) in women with irregular cycles.

• Phase: N/A

Details

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