Breakthrough blood test could spare unborn babies from painful needle tests

NCT ID NCT03622892

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested a new way to diagnose cystic fibrosis in unborn babies using a simple blood sample from the mother. Instead of using a needle to take fluid from around the baby, researchers used advanced DNA sequencing to read the baby's genes from tiny bits of fetal DNA floating in the mother's blood. The study included 28 families who already knew their baby was at risk for cystic fibrosis. If this method proves reliable, it could make prenatal testing safer and less stressful for families.

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 could lead to a safer, noninvasive way to diagnose cystic fibrosis in unborn babies, replacing risky invasive tests.

What could go wrong

This was a small, early-stage study with only 28 participants. The method may not be accurate enough for routine use and needs much larger validation.

Disclaimer Read more

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.

cystic fibrosis

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CH Saint Brieuc

    Saint-Brieuc, 22000, France

  • CHRU de Brest

    Brest, 29609, France

  • CHRU de Dijon

    Dijon, 21079, France

  • CHU de Nantes

    Nantes, 44093, France

  • CHU de Rennes

    Rennes, 35000, France

  • CHU de Rouen

    Rouen, 76031, France