Can a tiny balloon in the womb help babies breathe?

NCT ID NCT07767825

First seen Aug 17, 2026 ยท Last updated Aug 17, 2026

Summary

This pilot trial tests a procedure called FETO for fetuses with severe congenital diaphragmatic hernia (CDH), a condition where the diaphragm has a hole and the lungs don't develop fully. In FETO, a balloon is temporarily placed in the fetal windpipe to encourage lung growth, then removed before birth. The study enrolls 10 pregnant individuals and aims to see if the balloon can be safely placed and removed. If it works, this could offer a new way to improve outcomes for these babies.

What this could mean

Our plain-language read of the trial. This is informational only โ€” not medical advice or a prediction.

Active substance
Fetoscopic endoluminal tracheal occlusion (FETO) using a detachable balloon
What this could lead to
If successful, this procedure could improve lung growth and survival for babies with severe CDH, offering a new treatment option before birth.
What could go wrong
This is a small pilot study focused on feasibility, not proof of benefit. The procedure carries risks to both mother and fetus, and results may not generalize.

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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

Locations

  • NYU Langone Health

    New York, New York, 10016, United States