Clinical trials: Frozen Embryo Transfer (FET)
Infertility, Female, IVF
RCT to Assess the Impact of Microbiome Status in Infertile IVF Patients at Their First IVF/ICSI Cycle
Although the endometrium has been traditionally considered free of bacteria, recent studies have documented the presence of an endometrial microbiome.
- Trial name
- NCT04686357
- Testing
- EMMA/ALICE
- Volunteers
- 1,018 people, healthy volunteers welcome
- Sponsor
- Peking University Third Hospital
Assisted Reproductive Technology, Ultrasonography
Evaluating the Endometrial Receptivity of FET Patient by Ultrasounicelastography
Prospective clinical study ：observing the correlation between endometrial elasticity score, endometrial blood flow index (PI, RI, S/D, endometrial thickness, morphology) and clinical pregnancy rate.
- Trial name
- NCT03881072
- Testing
- Ultrasounicelastography
- Where
- China
- Volunteers
- 100 people, healthy volunteers welcome
- Sponsor
- Jinling Hospital, China
Pregnancy
Idealizing Pregnancy Outcome With Single Blastocyst Transfer in a FET Cycle
Single embryo transfer (SET) has been advocated as a means of reducing the risk of multiple pregnancies, but has meant a reduction in pregnancy risk per embryo transfer.
- Trial name
- NCT01987856
- Testing
- Blastocyst morphology
- Where
- Turkey (Türkiye)
- Volunteers
- healthy volunteers welcome
- Sponsor
- Antalya IVF
Infertility, Female, Polycystic Ovary Syndrome
Letrozole for Frozen Embryo Transfer (FET) in Patients With Polycystic Ovary Syndrome (PCOS)
To offer patients with oligomenorrhoea or amenorrhoea an alternative to frozen embryo transfer in an artificial cycle, endometrial preparation using letrozole may be a valuable option.
- Conditions
- Infertility, Female, Polycystic Ovary Syndrome, IVF, Ovulation Disorder
- Trial name
- LEFT (NCT04002635)
- Testing
- Letrozole, estradiol valerate
- Volunteers
- healthy volunteers welcome
- Sponsor
- CRG UZ Brussel
Luteal Support, Frozen Embryo Transfer (FET)
Is There a Need for Luteal Support in Modified Natural Cycle Frozen Embryo Transfer Cycles
Without progesterone there is no pregnancy. Following ovulation, the endocrine function of the follicle changes and progesterone replacing estradiol becomes its main secretory product.
- Trial name
- NCT06875752
- Testing
- no luteal support, Vaginal Progesterone, Progesterone plus HCG
- Where
- 5 sites in Hungary
- Volunteers
- 180 people, healthy volunteers welcome
- Sponsor
- Dunamenti REK Istenhegyi IVF Center
Preimplantation Genetic Testing (PGT), Frozen Embryo Transfer Cycle
Effects of Trophectoderm (TE) Biopsy on the Health and Development of Children Born After Preimplantation Genetic Testing (PGT) Cycles.
This study aims to investigate the effects of trophectoderm (TE) biopsy on the health and development of children born after preimplantation genetic testing (PGT) cycles.
- Conditions
- Preimplantation Genetic Testing (PGT), Frozen Embryo Transfer Cycle, Assisted Reproduction Technologies, Postnatal Health
- Trial name
- NCT07349966
- Testing
- Questionnaire
- Where
- Italy
- Volunteers
- 330 people, healthy volunteers welcome
- Sponsor
- IRCCS San Raffaele
IVF, Frozen Embryo Transfer (FET)
Maternal Cardiovascular Adaption to Pregnancy in IVF Patients Following Frozen Embryo Transfer (FET)
Aim of the study is to explore the effect of a lacking corpus luteum on maternal cardiovascular and metabolic adaption to pregnancy by the use of magnetic resonance imaging (MRI).
- Conditions
- IVF, Frozen Embryo Transfer (FET), Cardiovascular Adaption, Magnetic Resonance Imaging (MRI)
- Trial name
- NCT06471140
- Testing
- magnetic resonance imaging (MRI)
- Where
- Denmark
- Volunteers
- 75 people, healthy volunteers welcome
- Sponsor
- Aalborg University Hospital
Infertility
A Study:the Different Outcomes Between Natural Cycle and Hormone Replacement Cycle in FET
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…
- Trial name
- NCT01780558
- Testing
- natural cycles, estradiol and progesterone
- Where
- China
- Volunteers
- 600 people, healthy volunteers welcome
- Sponsor
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
IVF
Comparative Study Between Fresh and Frozen Embryo Transfer in PCOS Patients Undergoing IVF Treatment
The objective of our study is to compare in vitro fertilization (IVF) outcomes between fresh embryo transfer (ET) and frozen-thawed ET in women with polycystic ovary syndrome (PCOS).
- Trial name
- NCT05167838
- Testing
- fresh embryo transfer, Frozen embryo transfer
- Where
- Egypt
- Volunteers
- 110 people, healthy volunteers welcome
- Sponsor
- Cairo University
Infertility, Female
Daytime Profile of Salivary Progesterone
The aim of this study is to perform a 12-hour profile of free saliva progesterone during the luteal phase after fresh and frozen embryo transfer.
- Trial name
- NCT03725904
- Testing
- Progesterone analysis in saliva
- Where
- Denmark
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- Peter Humaidan
FET
Reduced Oestrogen Dosage to Improve the Outcome of Frozen-thawed Embryo Transfer
This study is a single-center, randomized, controlled prospective study. Those who will recieve hormone replacement therapy-frozen thawed embryo transfer (HRT-FET) are enrolled in the study.
- Trial name
- NCT05545592
- Testing
- Low oestrogen dosage
- Where
- China
- Volunteers
- 660 people, healthy volunteers welcome
- Sponsor
- Nanjing University
GnRH Agonist
Effect of GnRH Agonist in FET
To evaluate the impact of single dose GnRH agonist administration as luteal phase support on pregnancy outcomes in frozen ICSI cycle
- Trial name
- gnrh agonist (NCT07653282)
- Testing
- GnRH agonist
- Where
- Egypt
- Volunteers
- 122 people, healthy volunteers welcome
- Sponsor
- Assiut University
Infertilities, Embryo Transfer
Impact of the Presence of the Corpus Luteum on Pregnancies Obtained Through Frozen Embryo Transfer(FET)
In pregnancies achieved through programmed frozen embryo transfer cycle (PC-FET) and modified natural frozen embryo transfer (mNC-FET), to determine whether there are differences in endothelial and placental function, maternal…
- Trial name
- LUTI (NCT06896617)
- Testing
- Estradiol + Progesterone, Ovitrelle ( Hcg 250 mcg)
- Where
- Spain
- Volunteers
- 334 people, healthy volunteers welcome
- Sponsor
- Fundacion Clinic per a la Recerca Biomédica
Primary Infertility, Secondary Infertility
LANDA Embryo Freezing Technique.
The aim of this study is to track the outcome from the patients who had embryo cryopreservation as part of their Advanced Reproductive Technology (ART) treatment at West Coast Fertility Centers.
- Conditions
- Primary Infertility, Secondary Infertility, Genital Diseases, Male, Genital Diseases, Female
- Trial name
- Freezing (NCT01271400)
- Where
- United States
- Volunteers
- 20 people, healthy volunteers welcome
- Sponsor
- West Coast Fertility Centers
In Vitro Fertilization, Frozen Embryo Transfer
Comparison of Thawing Embryos in Advance and on the Day of Transfer on Pregnancy Outcomes in FET Cycle
Respectively for patients with repeated transplant failure and routine patients, Thawing frozen embryos in advance (18h) to extend the duration of embryonic development or thawing embryos on the day of transfer in the frozen…
- Trial name
- NCT04455191
- Testing
- Thawing Embryos in Advance, Thawing Embryos on the Day of Transfer
- Where
- China
- Volunteers
- 500 people, healthy volunteers welcome
- Sponsor
- Jinan Central Hospital
Pregnancy Related, Infertility, Female
Comparison of Live Birth Rate in Natural Cycle Single Euploid FET Versus Without Luteal Phase Support
To evaluate whether single euploid embryo transfer in NC without routinely administered LPS is non-inferior to NC with routinely administered LPS.
- Trial name
- NCT05969795
- Testing
- Transvaginal ultrasound, Serial serum LH, E2, P4, Progesterone 100 Mg Vaginal Insert
- Where
- 3 sites in United Arab Emirates
- Volunteers
- 342 people, healthy volunteers welcome
- Sponsor
- ART Fertility Clinics LLC
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
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
Infertility, Infertility, Female
Serum Progesterone Levels on the Day of Frozen Embryo Transfer (FET) and Pregnancy Outcomes
Frozen embryo transfer (FET) cycles have become more common in recent years due to a push towards elective single embryo transfer (SET).
- Conditions
- Infertility, Infertility, Female, IVF
- Trial name
- ProFET (NCT04170517)
- Testing
- Measurement of serum progesterone on the day of FET
- Where
- United Kingdom
- Volunteers
- 402 people, healthy volunteers welcome
- Sponsor
- CARE Fertility UK
Embryo Transfer, Luteal Support
Modified Luteal Support for Frozen-Thawed Embryo Transfer - A Prospective Study
This study evaluates the outcomes of frozen-thawed embryo transfer (FET) success rate with modified luteal support - addition of a single injection of HCG and GnRH-agonist, on day of ET and 4 days later, respectively vs.
- Trial name
- NCT02825290
- Testing
- Choriogonadotropin alfa, Triptorelin acetate
- Where
- Israel
- Volunteers
- 62 people, healthy volunteers welcome
- Sponsor
- Sheba Medical Center