Could a thyroid boost help tiny preemies grow smarter and stronger?

NCT ID NCT07625722

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

Summary

This trial investigates whether giving a thyroid hormone (levothyroxine) to very small preterm infants with mildly low thyroid function can improve their physical growth and brain development by age two. The study includes infants born weighing under 1500 grams who are small for their gestational age. Researchers will compare those who receive the hormone with those who do not, tracking height, weight, head size, and thinking skills.

What this could mean

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

Active substance

levothyroxine (thyroid hormone)

What this could lead to

If it works, this could point toward a simple treatment to improve growth and brain development in vulnerable preterm infants.

What could go wrong

This is a small, early-stage trial, so results may not apply broadly. The hormone dose must be carefully adjusted to avoid side effects.

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.

fetal growth restriction neurodevelopmental disorder Premature Birth

As listed by the trial registrant

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

Contacts and locations

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Shandong Provincial Hospital Affiliated to Shandong First Medical University

    Jinan, Shandong, 250021, China

    Contact Phone: •••-•••-•••• Email: •••••@•••••