Clinical trials
Embryo Transfer clinical trials
Below are recruiting embryo transfer clinical trials, each written for real people, not researchers. We’re tracking 51 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT06859944Recruiting
Comparing two types of frozen embryo transfer preparation
This trial compares two ways to prepare the uterus for a frozen embryo transfer: a natural cycle or a new method using hormonal stimulation during the early part of the cycle. It may help improve success rates for people using their own eggs and sperm.
BrusselsAges 18–45 - NCT07088640Recruiting
Comparing two ways to warm frozen embryos for transfer
This trial compares two methods of warming frozen embryos before transfer—one with a single step and one with multiple steps. It aims to see which approach leads to better pregnancy outcomes for women using their own frozen embryos.
Ho Chi Minh City, CityAges 18 years+ - NCT04619524Recruiting
Blood and lining tests during IVF cycles to guide endometrial timing
This study looks at “biomarkers” (test signals in your blood or cycle data) to better judge how ready the womb lining is during IVF. It compares two types of IVF hormone setups to see which approach best matches endometrial receptivity and supports successful embryo transfer.
Brno, South MoravianAges Up to 36 years - NCT06304792Recruiting
Immediate vs. later frozen embryo transfer in women with regular or irregular cycles
This trial compares transferring a frozen embryo right away versus waiting for a later cycle. It is designed for women with regular or irregular menstrual cycles who have at least one good-quality frozen embryo.
CopenhagenAges 18–40 - NCT07396181Recruiting
Standardizing embryo transfer conditions for IVF
This study compares different methods for transferring frozen embryos into the uterus during IVF. It aims to find the best technique to improve pregnancy chances.
WarsawAges 18–38 - NCT07388797Recruiting
Progesterone levels and pregnancy in frozen embryo transfer
This study looks at how progesterone levels on the day of embryo transfer affect the chance of pregnancy in frozen embryo transfer (FET) cycles. It aims to find if certain levels can improve outcomes for patients.
Hong KongAges 18–42 - NCT07349966Enrolling by invitation
Biopsy effects on children born after genetic testing
This study compares children born after preimplantation genetic testing with a small biopsy of the embryo to those born without such testing. It aims to see if the biopsy affects a child's health and development during their first year of life.
Milan, MilanoAges Up to 5 years - NCT07257250Recruiting
Levothyroxine for IVF in women with mild thyroid issues
This study tests whether taking levothyroxine (a thyroid hormone medication) before IVF or ICSI with frozen embryo transfer improves pregnancy rates in women with subclinical hypothyroidism (a mild thyroid condition). It aims to see if this treatment helps women like you have a better chance of getting pregnant.
Ho Chi Minh City, Ho Chi MinhAges 18–45 - NCT07216742RecruitingPhase 3
Fertility medication study for IVF with frozen embryo transfer
This study tests a fertility medication (human menopausal gonadotropin) to see how well it helps women have a live birth after IVF with frozen embryos. It compares the medication's effectiveness for women with infertility who are planning to freeze all embryos and transfer them later.
Encino, CaliforniaAges 18–42 - NCT07088952Recruiting
Ovulation trigger timing in natural cycle frozen embryo transfer
This trial compares triggering ovulation when the lead follicle is smaller versus larger than 17mm in a modified natural cycle. The goal is to see if timing the trigger differently improves pregnancy rates for women having a frozen embryo transfer.
Seville, SevillaAges 18–50 - NCT07036536Recruiting
Non-Euploid Embryo Transfer Registry
This registry is collecting information from people who plan to transfer an embryo that is not genetically normal (non-euploid) at a fertility clinic in The Prelude Network. It will help doctors learn more about outcomes with these embryos.
Houston, TexasAges Any age - NCT07020975Enrolling by invitation
Virtual reality for anxiety relief in infertile women
This trial tests whether virtual reality can help reduce anxiety in women with primary infertility. You would use a VR headset to experience relaxing scenes, and researchers will measure how your anxiety levels change.
Girne Kepuveia, KeryneiaAges 18–50 - NCT07004192RecruitingPhase 4
hCG use in frozen embryo transfer
This study tests whether giving hCG before transferring a thawed embryo can improve success. It is for women who have at least one frozen embryo of good quality and are planning a frozen embryo transfer.
Las Vegas, NevadaAges 18 years+ - NCT07620067Recruiting
GnRH Hormone for IVF Embryo Support
This study tests whether a hormone called GnRH can improve success rates during IVF (in vitro fertilization) by supporting the embryo after transfer. If you're having IVF for the first to third time and your doctor is considering different support methods, this trial may explore options for you.
JerusalemAges 18–45 - NCT06762626Recruiting
Comparing two methods of timing a frozen embryo transfer
This trial compares a new method to time a frozen embryo transfer (using a test called ERA) with the standard method. The goal is to find the best time to transfer a high-quality embryo in women who have had multiple failed IVF attempts (recurrent implantation failure).
Hong KongAges 18–40 - NCT06643065Recruiting
Vaginal microbiome and pregnancy with genetically normal embryos
This study looks at how the natural community of germs (microbiome) in the vagina might affect the chance of becoming pregnant after transferring a genetically normal embryo. It could help doctors understand if the vaginal environment plays a role in IVF success.
BarcelonaAges 18–50 - NCT06372119Recruiting
Letrozole vs artificial cycle for embryo transfer preparation
This trial compares two ways to prepare the uterus for a frozen embryo transfer: using the hormone letrozole or a standard artificial cycle. The goal is to see which approach works better for people with irregular periods.
Ho Chi Minh City, Ho Chi Minh CityAges 18–42 - NCT05473273Recruiting
Blood test study during normal frozen embryo transfer
This study measures changes in your blood immune markers during frozen embryo transfer when the embryo is chromosomally normal. It may help clinics understand what blood immune patterns relate to successful pregnancy in natural or hormone-prepared cycles.
Abu Dhabi, Abu Dhabi EmirateAges 18–40 - NCT06210451Recruiting
Speculum use during embryo transfer study
This trial compares different ways of using a speculum during embryo transfer to see if it affects success. It may be an option if you are having your first, second, or third embryo transfer with fresh or frozen embryos.
Tel AvivAges 18–40 - NCT06141135Recruiting
Genetic testing in IVF with single embryo transfer
This trial is for women aged 35–40 doing IVF. It compares genetic testing of embryos before transfer to standard care, to see if it improves pregnancy success.
Waltham, MassachusettsAges 35–40 - NCT06006091Recruiting
Letrozole for preparing the womb before embryo transfer
This study tests if a medicine called letrozole can help prepare the lining of the womb for a frozen embryo transfer. It may be an option for women under 40 who have had limited previous IVF cycles.
ShanghaiAges Up to 40 years - NCT05969795RecruitingPhase 1
Natural embryo transfer with or without progesterone support
This Phase 1 study compares pregnancy outcomes, especially live birth, when using a natural-cycle frozen embryo transfer with an embryo that is genetically euploid (normal chromosome number) versus doing transfers without luteal (progesterone) phase support. It may help determine whether adding progesterone around ovulation improves the chance of a live birth.
Abu DhabiAges 18–40 - NCT05899010RecruitingPhase 3
Micronized progesterone for frozen embryo transfers
This Phase 3 study tests whether adding micronized progesterone during frozen embryo transfer cycles helps support embryo implantation and pregnancy. You may benefit if your care team is already preparing the uterus with hormone therapy for a blastocyst transfer.
BarcelonaAges 18–50 - NCT05746793Recruiting
IVF pregnancy study to prevent pre-eclampsia in high-risk women
This trial studies ways to lower the risk of pre-eclampsia (dangerous high blood pressure in pregnancy) in women who are having a first pregnancy through IVF/ICSI or who have PCOS. It’s aimed at people considered higher risk for pre-eclampsia.
BrusselsAges 18–48
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Common questions
- Are there clinical trials for embryo transfer?
- Yes. Clin2 currently lists 51 recruiting embryo transfer studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a embryo transfer trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a embryo transfer trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.