Tiny blood test could unlock IVF pregnancy dangers
NCT ID NCT07477340
First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at a hormone called relaxin in women who get pregnant through IVF. Researchers want to see if relaxin levels differ between fresh and frozen embryo transfers, and if low levels are linked to pregnancy complications. 60 first-time mothers will give an extra blood sample early in pregnancy. The goal is to learn why frozen embryo transfers may carry higher risks of conditions like preeclampsia.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
Relaxin measurement (blood test)
What this could lead to
If successful, this could help explain why some IVF pregnancies have higher risks of complications like preeclampsia, and may guide safer embryo transfer methods.
What could go wrong
This is a small, early observational study (60 people) that only measures a hormone level. It won't directly change treatment or prove cause and effect.
Disclaimer
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Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
This is a summary of the original study . Summaries may miss details or leave out important information. Before applying or accepting participation, make sure you have read and understood the full study. Curemydisease.com takes no responsibility whatsoever for anything missed, misunderstood, or acted upon as a result of our summary — we know it does not capture everything.
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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.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Service de Médecine et de la Reproduction HFME
Bron, Rhone, 69500, France
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact