Clinical trials: Human Embryo Cryopreservation
Infertility
Vitrification Versus Slow Cooling of Human Cleavage Stage Embryos
Human embryos can be preserved for later transfers by freezing. Traditionally the slow cooling method has been used. About 70% of the embryos remain fully intact after thawing.
- Trial name
- NCT00886431
- Testing
- embryo vitrification
- Where
- 2 sites in Belgium, Netherlands
- Volunteers
- 146 people, healthy volunteers welcome
- Sponsor
- UMC Utrecht
Infertility, Subfertility
Comparison of Transfers of Fresh and Thawed Embryos in Patients With Prior Failed Embryo Transfer Cycles
This study seeks to determine if patients with a history of failed fresh embryo transfer(s) will have increased success rates with embryo cryopreservation and subsequent thawed embryo transfer when compared to fresh embryo…
- Trial name
- NCT00736177
- Testing
- Embryo cryopreservation, Fresh embryo transfer
- Where
- United States
- Volunteers
- healthy volunteers welcome
- Sponsor
- Fertility Center of Las Vegas
Infertility
Impact of Embryo Cryopreservation on Birth Weight
Birth weight (BW) is higher after frozen embryo transfer (FET) than after fresh embryo replacement. No study has compared the BW of siblings conceived using the same oocyte/embryo cohort.
- Trial name
- NCT03989843
- Where
- France
- Volunteers
- 183 people
- Sponsor
- University Hospital, Montpellier
Fertility
Effect of Oocyte Vitrification on Fertilization Rate, Embryo Quality and Development
Indications for oocyte (egg) vitrification (fast freezing) include the preservation of reproductive competence of young cancer patients who need chemotherapy, pelvic radiation, or surgical removal of ovaries for treatment.
- Trial name
- NCT01422395
- Testing
- Freezing
- Where
- United States
- Volunteers
- 40 people, healthy volunteers welcome
- Sponsor
- Main Line Fertility Center
Breast Cancer
Safety of Ovarian Stimulation With Letrozole and Gonadotropins in Breast Cancer Patients
Breast cancer patients are commonly treated with drugs that eggs present in the ovary and may reduce their chance for getting pregnant.
- Trial name
- NCT00504699
- Testing
- Ovarian stimulation in vitro fertilization cryopreservation
- Where
- United States
- Volunteers
- 120 people
- Sponsor
- New York Medical College
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
Infertility
Frozen-thawed Embryo Transfer (FTET) Cycle Follow-up Protocol (P06031)
The purpose of this follow-up study is to collect the outcome and safety of FTET cycles after the embryos are cryopreserved in P06029 (NCT01144416).
- Trial name
- NCT01146418
- Testing
- Corifollitropin alfa, recFSH (follitropin beta)
- Volunteers
- 307 people
- Sponsor
- Organon and Co
Fertilization in Vitro, Preservation of Supernumerary Embryos
Day 3 Embryo Cryopreservation: Metabolic and Viability Analysis
Embryo preservation through freezing plays a significant role in human assisted reproduction. It provides an opportunity for patients to have more than one attempt following an ovarian stimulation cycle, thereby decreasing the…
- Trial name
- NCT00608010
- Testing
- Vitrification, Slow freezing
- Where
- Turkey (Türkiye)
- Volunteers
- 186 people
- Sponsor
- V.K.V. American Hospital, Istanbul