Clinical trials
Fertility clinical trials
Below are recruiting fertility clinical trials, each written for real people, not researchers. We’re tracking 171 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT07765368Enrolling by invitation
Body fat versus BMI for IVF success
This study looks at whether body fat percentage or BMI is a better predictor of IVF outcomes. It may help personalize fertility treatment plans.
Halifax, Nova ScotiaAges 21–44 - NCT02595255Recruiting
Testing a hormone marker to predict infertility risk after childhood cancer
This study looks at whether a blood test (a hormone marker) can predict a child’s future risk of infertility after cancer treatment. If it works, it could help families and doctors plan earlier fertility and puberty-related care.
Montegnée, LiègeAges 3–14 - NCT06766604Recruiting
Super-GDF9 for egg maturation in women with PCOS
This study tests a protein called Super-GDF9 added to the lab process of maturing eggs from very small follicles. It may help women with PCOS produce more usable eggs for in vitro fertilization (IVF).
Ho Chi Minh CityAges 18–38 - NCT06177613Recruiting
Early culture medium transfer before frozen embryo transfer
This study tests if transferring a small amount of culture medium into the uterus before placing a frozen embryo can improve the chance of pregnancy in people who have had a failed embryo transfer before.
ClamartAges Any age - NCT06238570Recruiting
Freezing donated eggs with a new semi-automated method
This trial is testing a new way to freeze donated eggs (vitrification) using a semi-automated device. If you are an egg donor with good ovarian reserve and healthy blood tests, you may be able to take part.
Clermont-FerrandAges 18–38 - NCT06526520Recruiting
Relaxin levels in frozen embryo transfer preparation
This study looks at a hormone called relaxin during different ways of preparing the uterus for a frozen embryo transfer. It may help understand which preparation method works best for women who are not trying to get pregnant right now.
Abu Dhabi, Abu Dhabi EmirateAges 18–35 - NCT06387498Recruiting
Testicular Tissue Freezing for Fertility Preservation
This trial stores testicular tissue before certain medical treatments that could cause permanent infertility. It may help preserve your chance of having biological children in the future.
Aurora, ColoradoAges Any age - NCT06175832RecruitingPhase 4
Two Hormone Protocols for Egg Growth in First IVF or Egg Freezing
This trial compares two hormone protocols for ovarian stimulation in women having their first cycle—either to freeze eggs for fertility preservation or for IVF with genetic testing. The goal is to see which method leads to more usable eggs while being easier on the patient.
GhentAges 18–40 - NCT05882188Recruiting
Test which tubal scan is more cost-effective
This study compares two ways to check whether the fallopian tubes are open during a fertility work-up. It looks at which test is more cost-effective, and it may help guide which option you use.
AmsterdamAges 18–42 - NCT05080569RecruitingPhase 4
Extra support after IUI for couples with unclear infertility
This study tests whether adding support in the period after ovulation (the “luteal phase”) helps people who are starting IUI (intrauterine insemination) because their infertility is unexplained. It’s designed to see if the added care improves chances when mild ovarian stimulation is used.
UtrechtAges 18 years+ - NCT03555903Recruiting
Study of quality of life and fertility after deep endometriosis surgery
This study follows people who have had surgery for deep endometriosis to learn how it affects quality of life and future fertility. It may help improve care after surgery by showing which outcomes people can expect.
Pierre-BéniteAges 18 years+ - NCT01944332Recruiting
Gamete treatment for failed fertilization in IVF or ICSI
This study looks at a treatment given to egg and sperm (gametes) when fertilization fails during standard IVF or after one ICSI attempt. If fertilization has not worked well before, this trial may test an approach to improve the chances of fertilization.
New York, New YorkAges 21–89 - 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 - NCT04255615Recruiting
AI tool to improve IVF and embryo freezing assessments
This study uses an artificial intelligence (computer) tool to look at results from IVF and related fertility treatments. It may help clinicians assess outcomes more accurately for people going through ovarian stimulation and embryo or egg freezing.
New York, New YorkAges 18–89 - NCT06521372Recruiting
AI egg sorting for better IVF embryos
This study tests whether an AI tool that sorts fresh mature eggs by their images can help more become usable blastocysts (embryos that can be transferred) and lead to pregnancy during IVF. It is for people doing ICSI with fresh eggs and planning to transfer one blastocyst.
Las Vegas, NevadaAges Any age - NCT06150703RecruitingPhase 3
Luteal phase support with GnRH agonist after egg retrieval trigger
This trial tests whether giving a medication called a GnRH agonist during the luteal phase (the time after egg retrieval) can help with IVF success. It is for people who are using a specific medication protocol (recombinant FSH with an antagonist) and have certain hormone levels.
BondyAges 18–39 - NCT06154083RecruitingPhase 4
Comparing stimulation doses for IVF with genetic testing
This trial tests two different intensities of ovarian stimulation for women undergoing IVF with genetic testing of embryos. It aims to see which approach leads to more healthy embryos ready for transfer.
BarcelonaAges 38–42 - NCT06744049Recruiting
New device for embryo transfer in IVF
This study tests a new device for transferring embryos during IVF (in vitro fertilization). It is for women who have at least one genetically normal frozen embryo and a low risk of transfer complications.
Barcelona, BarcelonaAges 18–50 - NCT07297394Recruiting
How the immune system supports early pregnancy
This study looks at how the immune system helps the body accept a pregnancy. It involves blood samples from people who are pregnant or going through IVF/ICSI, or who have had a miscarriage.
BaselAges 18 years+ - NCT07509840RecruitingPhase 3
Immune therapy to restore ovary function and fertility
This trial tests whether an immune-modulating drug can restart ovulation and improve fertility in women whose ovaries stopped working due to autoimmune disease. It is for women ages 18–38 with autoimmune premature ovarian insufficiency and certain antibodies.
StockholmAges 18–38 - NCT06581068Recruiting
Automated IVF lab study for better fertility outcomes
This study tests a new automated system for IVF lab procedures to see if it improves success rates. Patients with specific fertility needs may join if they meet health and age requirements.
Mexico City, Mexico CityAges 18–45 - NCT06732843Recruiting
Comparing two IVF medications for egg and embryo quality
This study compares two fertility medications (rFSH and hMG) to see how they affect the cells around your eggs and the quality of embryos. It may help you and your doctor choose the best stimulation drug for your IVF cycle.
Abu Dhabi, Abu Dhabi EmirateAges 18–38 - NCT07546123Recruiting
Freezing Ovarian Tissue and Eggs for Cancer Patients
This trial compares two methods of preserving a woman's fertility before cancer treatment: freezing eggs alone versus freezing both eggs and ovarian tissue. The goal is to help women who may lose fertility due to chemotherapy or radiation keep their options open for having biological children in the future.
Bologna, BolognaAges 18–46 - NCT06144268Recruiting
Sperm selection for intrauterine insemination
This trial tests a device called ZyMōt Multi that selects the best sperm for intrauterine insemination (IUI). It may help couples trying to conceive by improving the chance of a live birth.
BrusselsAges 18–36
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Common questions
- Are there clinical trials for fertility?
- Yes. Clin2 currently lists 171 recruiting fertility 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 fertility 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 fertility 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.