Tiny bugs, big questions: can microbes affect infertility?
NCT ID NCT07315568
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study looks at how different microbes (like bacteria and viruses) spread between couples who are having trouble getting pregnant. Researchers will collect samples from the mouth and genitals of 200 couples over two years. The goal is to understand infection risks and improve infertility care.
What this could mean
Our plain-language read of the trial. This is informational only, not medical advice or a prediction.
- What this could lead to
- If successful, this study could point toward better ways to prevent infections and improve infertility treatments.
- What could go wrong
- This is an observational study, not a treatment trial. It will not directly test any therapy, so results may not lead to immediate changes in care.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Participants
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About 200 people
The number the study aims to enrol. It can still change while the study runs.
- Expected to start
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Jan 2026
An estimate. Start dates often move.
- Expected to finish
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Dec 2031
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
Who is studied
Couples attending the Tampere University Hospital (TAUH) infertility clinic due to problems in conceiving during the past 12 months.
- Ages
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18 years and older
- Sex
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Anyone
- Healthy volunteers
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Not accepted
This study is not open to healthy volunteers. The entry requirements below say who it is open to.
Show the full entry requirements Hide the full entry requirements
Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.
Inclusion Criteria: * Problems in conceiving the past 12 months * Over 18 years old * Fluent in Finnish Exclusion Criteria: * Needs for donated gametes (except for female homosexual couples)
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Conditions
The condition(s) this trial relates to.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The official record
ClinicalTrials.gov lists the study team's own contact details, including names and phone numbers. We don't republish those.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
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Other studies related to the condition(s) this trial covers.
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