Infertility disorder
MONDO:0005047Inability to conceive for at least one year after trying and having unprotected sex. Causes of female infertility include endometriosis, fallopian tubes obstruction, and polycystic ovary syndrome. Causes of male infertility include abnormal sperm production or function, blockage of the epididymis, blockage of the ejaculatory ducts, hypospadias, exposure to pesticides, and health related issues.
Also known as: Sterile, fertility disorders, infertile, sterile, sterility, infertility
545 clinical trials for this condition and its sub-types, 361 tagged with Infertility disorder itself.
Follow this condition to get notified about new trialsWhere it sits in the disease tree
Browse by category →Sub-types of Infertility disorder
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Female infertility 107 trials · 162 incl. sub-types
4 sub-types
- Inherited primary ovarian failure 2 trials · 48 incl. sub-types Sub-types →
- Female infertility of uterine origin 9 trials
- Female infertility due to oocyte meiotic arrest 0 trials
- Female infertility due to zona pellucida defect 0 trials
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Male infertility 74 trials · 92 incl. sub-types
8 sub-types
- Azoospermia 25 trials
- Oligospermia 20 trials
- Spermatogenic failure 1 trial · 12 incl. sub-types Sub-types →
- Oligoasthenoteratozoospermia 11 trials
- Partial chromosome Y deletion 0 trials · 5 incl. sub-types Sub-types →
- Male infertility with teratozoospermia due to single gene mutation 0 trials · 1 incl. sub-types Sub-types →
- Infertility due to extratesticular cause 0 trials
- Male infertility due to acephalic spermatozoa 0 trials
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Pregnancy loss, recurrent, 4 14 trials
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SYCE1-related gametogenic failure 0 trials
2 sub-types
- Premature ovarian failure 12 0 trials
- Spermatogenic failure 15 0 trials
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Inherited oocyte maturation defect 0 trials
24 sub-types
- Female infertility due to zona pellucida defect 0 trials
- Oocyte maturation defect 10 0 trials
- Oocyte maturation defect 11 0 trials
- Oocyte maturation defect 12 0 trials
- Oocyte maturation defect 13 0 trials
- Oocyte maturation defect 14 0 trials
- Oocyte maturation defect 2 0 trials
- Oocyte maturation defect 3 0 trials
- Oocyte maturation defect 4 0 trials
- Oocyte maturation defect 5 0 trials
- Oocyte maturation defect 6 0 trials
- Oocyte maturation defect 7 0 trials
- Oocyte maturation defect 8 0 trials
- Oocyte maturation defect 9 0 trials
- Oocyte/zygote/embryo maturation arrest 16 0 trials
- Oocyte/zygote/embryo maturation arrest 17 0 trials
- Oocyte/zygote/embryo maturation arrest 18 0 trials
- Oocyte/zygote/embryo maturation arrest 19 0 trials
- Oocyte/zygote/embryo maturation arrest 20 0 trials
- Oocyte/zygote/embryo maturation arrest 21 0 trials
- Oocyte/zygote/embryo maturation arrest 22 0 trials
- Oocyte/zygote/embryo maturation arrest 23 0 trials
- Oocyte/zygote/embryo maturation arrest 24 0 trials
- Oocyte/zygote/embryo maturation arrest 25 0 trials
Most studied deeper sub-types
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Zapping ovaries: could a quick procedure replace daily pills for PCOS infertility?
Disease control Stopped earlyThis study tests a device that uses heat to ablate (destroy) a small part of the ovary in women with polycystic ovary syndrome (PCOS) who have trouble getting pregnant. The goal is to restore ovulation without needing daily medication. About 195 women will be randomly assigned to…
Sponsor: May Health • Aim: Disease control
Last updated Sep 10, 2026 00:00 UTC
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Weight loss and hormone pill tested for fertility-sparing cancer treatment – but trial stopped early
Disease control Stopped earlyThis study tested whether combining weight management (diet and exercise guidance) with a daily hormone pill (megestrol acetate) could help obese patients with early-stage endometrial cancer who want to preserve their fertility. The goal was to see if the cancer would completely …
Phase 2/3 • Sponsor: Xiaojun Chen • Aim: Disease control
Last updated Jun 27, 2026 13:03 UTC
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Continued EryDex treatment studied in rare neurological disorder
Disease control Stopped earlyThis study offered continued treatment with EryDex to 101 people with ataxia telangiectasia (A-T) who had finished a previous trial. The main goal was to monitor safety, including side effects and serious events. The study was terminated early, and it did not aim to cure the dise…
Phase 3 • Sponsor: Quince Therapeutics S.p.A. • Aim: Disease control
Last updated Jun 27, 2026 12:29 UTC
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New IVF drug trial halted early: did it help embryo growth?
Disease control Stopped earlyThis early-stage trial tested whether adding the drug FE999302 to standard IVF hormones could increase the number of high-quality embryos in women undergoing fertility treatment. The study enrolled 310 women aged 18–40 with specific hormone levels. The trial was terminated early,…
Phase 1 • Sponsor: Ferring Pharmaceuticals • Aim: Disease control
Last updated Jun 27, 2026 12:02 UTC
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Timing of fertility drug may affect egg quality in IVF
Disease control Stopped earlyThis early-phase study looked at whether giving an extra fertility drug (FE 999302) at different times during ovarian stimulation could improve the number of good-quality embryos in women undergoing IVF. The trial included 106 women with high ovarian reserve and was stopped early…
Phase 1 • Sponsor: Ferring Pharmaceuticals • Aim: Disease control
Last updated Jun 27, 2026 12:02 UTC
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Experimental drug shows promise for rare genetic disorder
Disease control Stopped earlyThis Phase II trial tested a drug called N-Acetyl-L-Leucine (IB1001) in 17 people with Ataxia-Telangiectasia, a rare genetic disease that affects movement and immunity. The study aimed to see if the drug could improve symptoms and slow the disease over time. The trial was termina…
Phase 2 • Sponsor: IntraBio Inc • Aim: Disease control
Last updated Jun 27, 2026 12:00 UTC
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Deep endometriosis: surgery vs. IVF in fertility showdown
Disease control Stopped earlyThis study compared two approaches for women with deep endometriosis who want to get pregnant: surgery to remove endometriosis or fertility treatment (IVF). Researchers planned to track pregnancy and live birth rates. The trial was stopped early after enrolling 38 women, so the r…
Sponsor: Horsens Hospital • Aim: Disease control
Last updated Jun 27, 2026 11:00 UTC
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New embryo test could boost IVF success without poking the embryo
Diagnosis Stopped earlyThis study tested a new, non-invasive way to check embryos for chromosome problems before IVF. Instead of taking a cell from the embryo, doctors analyzed the fluid the embryo grew in. The goal was to see if this method could help choose the embryo most likely to lead to a healthy…
Sponsor: Igenomix • Aim: Diagnosis
Last updated Jun 27, 2026 07:52 UTC
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Can a smart tampon predict your fertile days better than pee sticks?
Knowledge-focused Stopped earlyThis study compares a new at-home vaginal device (Kegg) that measures electrical changes in cervical mucus to standard methods like urine hormone strips and mucus checks. About 500 women aged 18-40 will use the device for three menstrual cycles. The goal is to see if the device c…
Sponsor: Lady Technologies Inc • Aim: Knowledge-focused
Last updated Sep 17, 2026 00:00 UTC
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Can sex boost the odds of IVF success?
Knowledge-focused Stopped earlyThis trial asks whether having sexual intercourse in the 72 hours after a frozen embryo transfer changes the likelihood of a clinical pregnancy. Researchers will compare pregnancy rates, miscarriage rates, and live birth rates between women who have sex and those who do not. The …
Sponsor: Fundación Santiago Dexeus Font • Aim: Knowledge-focused
Last updated Sep 10, 2026 00:00 UTC
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Ultrasound could uncover hidden vascular risks in turner syndrome
Knowledge-focused Stopped earlyThis study is looking at whether yearly ultrasound scans can detect blood vessel abnormalities throughout the body in women with Turner syndrome, not just in the heart area. Turner syndrome is a genetic condition that increases the risk of serious vascular problems, which can sho…
Sponsor: University Hospital, Strasbourg, France • Aim: Knowledge-focused
Last updated Aug 23, 2026 00:00 UTC
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Does Dad's smoking harm fertility? new study investigates
Knowledge-focused Stopped earlyThis study looked at how a man's smoking habits might affect a couple's ability to have a baby. Researchers compared fertile and infertile couples, measuring smoking markers like carbon monoxide and cotinine in blood, semen, and hair. The goal was to understand if smoking damages…
Sponsor: Centre Hospitalier Universitaire, Amiens • Aim: Knowledge-focused
Last updated Jun 27, 2026 13:07 UTC
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Chemo's toll on fertility: study in young breast cancer patients
Knowledge-focused Stopped earlyThis study aimed to understand how chemotherapy impacts the ability to have children in young women (ages 18-37) with breast cancer. Researchers measured ovarian reserve (egg supply) using hormone levels and follicle counts before, during, and up to 24 months after treatment. The…
Sponsor: Centre Oscar Lambret • Aim: Knowledge-focused
Last updated Jun 27, 2026 11:01 UTC
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Gene study probes infertility hormone clues
Knowledge-focused Stopped earlyThis study looked at how the body responds to certain hormones (kisspeptin and GnRH) in people who carry gene variants linked to infertility. Researchers measured natural hormone patterns and responses to stimulation in 16 participants. The goal was to better understand reproduct…
Phase 1 • Sponsor: Stephanie B. Seminara, MD • Aim: Knowledge-focused
Last updated Jun 27, 2026 09:10 UTC
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New fertility library aims to unlock secrets of unexplained infertility
Knowledge-focused Stopped earlyThis study aimed to create a library of biological samples and clinical data from 250 women with unexplained infertility or low ovarian reserve. Researchers collected blood, DNA, vaginal swabs, and fluid from egg retrieval to help future studies find markers that predict pregnanc…
Sponsor: University Hospital, Brest • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:05 UTC
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PCOS hormone study halted early – what it means for IVF
Knowledge-focused Stopped earlyThis study looked at whether high levels of male hormones (hyperandrogenism) lower the chance of IVF success in women with PCOS. Researchers planned to track 32 women aged 18–39, but the study was terminated early. The goal was to see if these hormones affect pregnancy rates afte…
Sponsor: Clinique Ovo • Aim: Knowledge-focused
Last updated Jun 27, 2026 08:03 UTC