Clinical trials: Frozen Thawed Embryo Transfer
Infertility
Evaluation of Blastocyst Morphology and Quality in Patients With Embryo Transfer at the Blastocyst Stage
In this prospective study, the investigators aim to investigate the role of trophectoderm cells and inner cell mass cells on pregnancy outcomes in blastocyst transferred in-vitro fertilization pregnancy.
- Trial name
- NCT05510557
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Akdeniz University
Infertility
Frozen Embryo Transfer (FET) in Natural Cycles or in Natural Cycles Controlled by Human Chorionic Gonadotropin (hCG) Administration
The rational of the study is to assess the implantation, pregnancy and live birth rates after the transfer of frozen- thawed embryos in natural cycles with spontaneous Luteinizing Hormone (LH)/Progesterone rise or in natural…
- Trial name
- FRET (NCT00809107)
- Testing
- HCG
- Where
- Belgium
- Volunteers
- 150 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Progesterone Supplementation
Optimal Length of Progesterone Supplementation Before the Transfer of Cryopreserved (Frozen)-Thawed Day 3 Embryos in an Artificial Cycle With Exogenous Estrogen and Progesterone
Cryopreserved-thawed embryos are often replaced in an artificial cycle, in which the endometrium is prepared by exogenous estrogen and progesterone with or without the use of GnRH agonist downregulation.
- Trial name
- PROFETA-3 (NCT01940653)
- Testing
- Progesterone
- Where
- Belgium
- Volunteers
- 300 people, healthy volunteers welcome
- Sponsor
- Universitair Ziekenhuis Brussel
Infertility
The Effects of Two Endometrium Preparation Protocols in Frozen-thawed Embryo Transfer in Women With Irregular Cycles
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…
- Trial name
- NCT01780610
- Testing
- Letrozole and human chorionic gonadotrophin, estradiol and progesterone
- Where
- China
- Volunteers
- 670 people, healthy volunteers welcome
- Sponsor
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Infertility, Female Infertility
What is the Optimal Cycle Regimen for Frozen- Thawed Embryo Transfer Cycles
Investigators will be comparing artificial (HRT) frozen-thawed embryo transfer cycles to correctly conducted spontaneous natural cycles after the transfer of a chromosomally normal embryo.
- Conditions
- Infertility, Female Infertility, Pregnancy Early
- Trial name
- NCT03954587
- Where
- United Arab Emirates
- Volunteers
- 4 people, healthy volunteers welcome
- Sponsor
- ART Fertility Clinics LLC
Infertility
The Effect of Baseline Bilateral Uterine Artery Doppler Velocimetry on Obstetric Outcomes in HRT-FET Cycles
Researchers aim to determine how baseline (pre-conceptional) uterine perfusion characteristics affect implantation rates and obstetric complications in women who underwent high-quality blastocyst transfer.
- Trial name
- NCT05526014
- Where
- Turkey (Türkiye)
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Akdeniz University