Could a Mother's thyroid or anxiety affect her Baby's heart tracing?

NCT ID NCT07774949

Knowledge-focused Sponsor: Istanbul Training and Research Hospital Source: ClinicalTrials.gov ↗

First seen Aug 19, 2026 · Last updated Aug 20, 2026 · Updated 1 time

Summary

This study looks at whether a mother's thyroid hormone levels and anxiety scores are linked to the results of fetal heart monitoring (non-stress test) in high-risk pregnancies. Researchers will follow pregnant women at 32 weeks or later, recording routine thyroid tests, anxiety questionnaires, and fetal heart tracings. The goal is to see if these maternal factors are associated with signs of fetal well-being, which could guide future 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: This research could help identify which high-risk pregnant women may need extra monitoring or support for thyroid or anxiety issues to improve fetal well-being.
What could go wrong: This is an observational study, so it can only show associations, not cause and effect. Results may be influenced by many factors and may not apply to all pregnancies.

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Study facts

What this study's own registry entry says, in plain language.

Participants

About 150 people

The number the study aims to enrol. It can still change while the study runs.

Started

Mar 2026

Expected to finish

Dec 2028

An estimate. End dates often move.

Lead sponsor

A government agency

The lead sponsor is a government body.

Who can take part

This study's own entry requirements. Only the study team can say for certain whether you qualify.

Who is studied

The study population will consist of women with high-risk singleton pregnancies at 32 weeks of gestation or later who are followed at the Perinatology Outpatient Clinic of Istanbul Training and Research Hospital and who undergo routine thyroid function testing and non-stress testing.

Ages

18 to 45 years

Sex

Female participants only

Healthy volunteers

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

Copied word for word from the study's registry entry, so the wording is the study team's rather than ours.

Inclusion Criteria: * Singleton pregnancy at 32 weeks of gestation or later * Pregnancy being followed as a high-risk pregnancy * Age between 18 and 45 years * Availability of routine thyroid function test results and non-stress test assessment * Ability and willingness to provide written informed consent Exclusion Criteria: * Gestational age below 32 weeks * Multiple pregnancy * Fetal conditions that may affect interpretation of the non-stress test tracing * Acute maternal infection * Presence of an acute obstetric condition * Previously diagnosed psychiatric disorder * Current use of psychiatric medication * Age younger than 18 years or older than 45 years

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As listed by the trial registrant

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

High risk pregnancy

How to take part

Only the study team decides who joins. These are the ways to reach them.

The places running it

1 site. The list below names each one and where it is.
The official record

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Could a Mother's thyroid or anxiety affect her Baby's heart tracing?

What the study statuses mean