Condition

Infertility Unexplained clinical trials and research

• 6Clinical trials
• 6Countries

Newest Infertility Unexplained clinical trials

All recruiting trials (6)

• Integrative care guided by biological aging markers for unexplained female infertility

  This trial tests whether measuring telomeres and other biological aging markers can guide a personalized integrative treatment to help women aged 25–42 with persistent unexplained infertility improve their chances of pregnancy.

  Recruiting BEYOND GENOMiX SA, AG, Ltd · Neuchâtel · NCT07404969

• Using natural killer cells from patients to improve fertility and pregnancy outcomes

  This study is testing whether using a special type of immune cell from patients can help improve fertility and pregnancy outcomes for those struggling with infertility or past pregnancy issues.

  Recruiting Phase 1 The Affiliated Nanjing Drum Tower Hospital of Nanjing University Medical School · Nanjing, Jiangsu · NCT06821685

• Using artificial intelligence to improve oocyte and embryo quality assessment in fertility treatments

  This study is testing whether using artificial intelligence can help improve the quality of eggs and embryos in fertility treatments like IVF to boost the chances of pregnancy.

  Recruiting at 4 sites Charles University, Czech Republic · Prague and 3 other locations · NCT06539104

• Analyzing the microbiome in women with endometriosis and unexplained infertility

  This study is testing how the gut and other microbiomes in women with endometriosis or unexplained infertility might be linked to their symptoms and quality of life.

  Recruiting Jagiellonian University · Krakow · NCT05824819

• Comparing two methods of sperm preparation for intrauterine insemination

  This study is testing which of two sperm preparation methods helps couples trying to get pregnant through intrauterine insemination achieve better pregnancy outcomes.

  Recruiting University of California, San Francisco · San Francisco, California · NCT05693220

• Luteal phase support during IUI with mild ovarian stimulation

  This trial tests whether taking vaginal progesterone after intrauterine insemination with mild ovarian stimulation increases pregnancy and live birth rates for people with unexplained infertility over six months.

  Recruiting Phase 4 UMC Utrecht · Utrecht · NCT05080569

Related topics

Quick answers

How many Infertility Unexplained clinical trials are recruiting right now?

6, as of November 12, 2026. We update this list each time we refresh our data from ClinicalTrials.gov.

Where are these trials running?

In 6 countries. The most sites are in Czechia (1 trial), China (1 trial), Netherlands (1 trial), United States (1 trial), Switzerland (1 trial). Each study page lists its sites and which ones are recruiting.

What phases are they in?

Phase 1: 1, Phase 4: 1. Trials with no phase listed are usually device, behavioural or observational studies.

How do I join one?

Open a study, check the "Is this trial a fit for you?" section, then contact the study team listed on the page. They will ask a few screening questions. Asking is free and does not commit you to anything. Talk it over with your doctor first.

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