Clinical trials: Frozen Embryo Transfer (FET)
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
Embryo Transfer
Natural Cycles With Spontaneous Versus Induced Ovulation in FET
In recent years, frozen-thawed embryo transfer procedure (FET) has been widely used to increase the cumulative pregnancy rate per IVF-cycle: which is the best preparation protocol remains a matter of debate.
- Trial name
- NCT03581422
- Testing
- hCG administration before embryo transfer
- Volunteers
- 2,866 people
- Sponsor
- Istituto Clinico Humanitas
Infertility, Female
Progesterone-modified Natural Cycle for FET
Hormone replacement therapy (HRT) cycles, despite the ease of synchronizing embryo thawing and embryo transfer timing, increase the risk of pregnancies and obstetric complications compared to natural cycles (NC).
- Trial name
- COMPROSET (NCT06644794)
- Testing
- Progesterone-modified natural cycle preparation for frozen embryo transfer, Hormone replacement therapy cycle preparation for frozen embryo transfer
- Where
- China
- Volunteers
- 336 people
- Sponsor
- Shandong University of Traditional Chinese Medicine
Infertility, Female, Endometriosis
Predicting Endometrial Receptivity for Optimal Reproductive Management
The purpose of this study is to understand why some women are infertile (unable to conceive a child). The investigators hope to learn if an endometrial biopsy after egg retrieval is feasible for detecting biomarkers for…
- Trial name
- PERFORM (NCT04107129)
- Testing
- Endometrial Biopsy, Euploid embryo transfer, Blood sample
- Where
- United States
- Volunteers
- 76 people
- Sponsor
- Stanford University
Hormone Replacement Therapy, Estrogen
Estrogen Supplementation Mode in HRT-FET Cycle: a RCT
A systematic review and meta-analysis concluded that there is insufficient evidence to recommend one particular protocol for HRT with regard to pregnancy rates after frozen embryo transfer, and no comparison of estrogen dose or…
- Conditions
- Hormone Replacement Therapy, Estrogen, Live Birth Rate
- Trial name
- NCT04503915
- Testing
- different estrogen supplementation modes
- Volunteers
- 784 people
- Sponsor
- Sun Yat-Sen Memorial Hospital of Sun Yat-Sen University
Subfertility, Pregnancy
A RCT Comparing Spontaneous Natural Cycles and Human Chorionic Gonadotrophin-induced Natural Cycles in FET
This is a randomized controlled trial on the comparison of the ongoing pregnancy rate in frozen-thawed embryo transfer cycles with spontaneous ovulation and hCG-induced natural cycles.
- Trial name
- NCT02197208
- Testing
- Daily monitoring of LH and E2, hCG induced natural cycle, ultrasound
- Where
- 2 sites in China, Hong Kong
- Volunteers
- 300 people
- Sponsor
- The University of Hong Kong
Infertility
Study Comparing Outcomes Between Conventional IVF and a "Freeze-all"-Strategy in Assisted Reproductive Technology
The purpose of this study is to compare conventional fresh embryo transfer with a "freeze all and transfer later strategy" in assisted reproductive technology in terms of ongoing pregnancy rates, live birth rates as well as…
- Trial name
- NCT02746562
- Testing
- Freeze all
- Where
- 2 sites in Denmark
- Volunteers
- 424 people
- Sponsor
- Anja Bisgaard Pinborg
Subclinical Hypothyroidism, Infertility
Levothyroxine Treatment and IVF Outcomes in Women With Subclinical Hypothyroidism: A Target Trial Emulation
Subclinical hypothyroidism (SCH) is defined by elevated thyroid-stimulating hormone (TSH) with normal free thyroxine (fT4) levels.
- Conditions
- Subclinical Hypothyroidism, Infertility, Assisted Reproductive Technology, In Vitro Fertilization (IVF)
- Trial name
- LESI (NCT07257250)
- Where
- 2 sites in Vietnam
- Volunteers
- 900 people
- Sponsor
- Mỹ Đức Hospital
Infertility, Female
Personalized FET in RIF Patients With Displaced Dating
The endometrium becomes receptive as a result of a series of timed hormonal events during the menstrual cycle. The exposure of the endometrium to progesterone after ovulation initiates morphological and functional alterations…
- Trial name
- NCT03910582
- Testing
- personalized frozen-thawed embryo transfer, routine frozen-thawed embryo transfer
- Volunteers
- 117 people
- Sponsor
- Reproductive & Genetic Hospital of CITIC-Xiangya
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
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
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
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
Comparison of Pregnancy Rate (HCG+ Level) Obtained After a Replacement Embryonic in Spontaneous Cycle and Following Protocol "NPP". Comparison
Prospective Randomized Non-Inferiority Study Comparing Natural Cycle Frozen Embryo Transfer (NC-FET) to a New Type of Endometrial Preparation for FET: Natural Proliferative Phase (NPP-FET)
Frozen embryo replacement cycle :Two methods traditionally used: the spontaneous cycle and the artificial cycle.Now, Emergence of new protocols: NPP-FET or "Natural proliferative phase - frozen embryo transfer" Demonstrate…
- Trial name
- NPP (NCT06859944)
- Testing
- Embryo transfer
- Where
- Belgium
- Volunteers
- 272 people
- Sponsor
- Erasme University Hospital
Vaginal Dysbiosis
Effect of FB301 on Vaginal Bacterial Profile in Women With Asymptomatic Vaginal Dysbiosis Undergoing a Mock Frozen Embryo Transfer Cycle
The goal of this clinical trial is to evaluate FB301 during a mock frozen embryo transfer (FET) cycle in pre-menopausal women aged 18 to 45 years with a prior failed FET and a defined vaginal bacterial imbalance (dysbiosis).
- Trial name
- NCT07453069
- Testing
- FB-301, Chlorhexidine (0.5%) Vaginal Cleanse
- Where
- 4 sites in United States
- Volunteers
- 30 people
- Sponsor
- Freya Biosciences ApS
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
Infertility, Polycystic Ovarian Syndrome
HRT Versus MOS for Endometrial Preparation Prior to FET in PCOS Patients
Evaluation of endometrial preparation using either hormonal therapy or ovarian stimulation prior to frozen-thawed embryo transfer (FET) in patients with polycystic ovarian syndrome (PCOS)
- Trial name
- NCT02273791
- Testing
- Estradiol valerate, Sequential Clomiphene citrate and Gonadotropin
- Where
- 2 sites in Egypt
- Volunteers
- 126 people
- Sponsor
- Mansoura University
Infertility, Endometrial Peristalsis
Association Between Peri-Transfer Endometrial Peristalsis And Live Birth In Modified Natural Cycle Frozen Embryo Transfer: A Prospective Cohort Study
The uterus is a dynamic muscular organ that undergoes rhythmic, wave-like contractions known as endometrial peristalsis or endometrial waves.
- Conditions
- Infertility, Endometrial Peristalsis, Uterine Contraction, Endometrial Waves
- Trial name
- EPFE (NCT07358468)
- Testing
- Endometrial peristalsis and hormone measurements
- Where
- 2 sites in Vietnam
- Volunteers
- 384 people
- Sponsor
- Mỹ Đức 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
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