Gene sequencing sheds light on unexplained fetal abnormalities
NCT ID NCT06054230
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at 500 pregnant women whose fetuses have structural anomalies not explained by standard genetic tests. Researchers will use advanced genomic sequencing to find possible genetic causes. The goal is to learn more about these conditions and how families use this information during pregnancy.
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 improve how doctors diagnose and counsel families about fetal anomalies during pregnancy.
- What could go wrong
- This is an early observational study, not a treatment trial. Results may not change pregnancy outcomes, and sequencing may not always find a cause.
This is an AI summary of the original study and may miss details. Read our disclaimer.
Study facts
What this study's own registry entry says, in plain language.
- Phase
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Not a phased trial
Phase numbers describe drug development. The registry uses this when they do not apply, as it does for trials of devices, procedures or behaviour changes, and for observational studies.
- Participants
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About 500 people
The number the study aims to enrol. It can still change while the study runs.
- Started
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Sep 2023
- Expected to finish
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Jul 2030
An estimate. End dates often move.
- Lead sponsor
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Other sponsor
The registry's catch-all category, for sponsors it does not file as a company, a government agency, or a research network.
Who can take part
This study's own entry requirements. Only the study team can say for certain whether you qualify.
- Ages
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18 to 64 years
- Sex
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Anyone
- Healthy volunteers
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Accepted
You do not need to have the condition being studied to take part.
Show the full entry requirements Hide 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: 1. Pregnant individual \>18 years of age 2. Pregnant with a fetus (singleton or multiple gestation) affected by one or more fetal anomalies, unexplained fetal death after 14 wks, unexplained severe fetal growth restriction (\< 3%ile), unexplained severe polyhydramnios Exclusion Criteria: 1. Declines diagnostic testing with karyotype or microarray 2. Fetal anomaly explained by other testing (viral infection, aneuploidy or copy number variant detected by microarray)
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As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
How to take part
Only the study team decides who joins. These are the ways to reach them.
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The places running it
1 site. The list below names each one and where it is.
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The official record
The full official record for this study. This one lists no contact details, but it is the first place any would appear.
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A doctor treating you
A doctor who knows your case can contact a study site on your behalf, and can tell you whether this study is worth pursuing at all.
Contacts and locations
Locations
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University of California, San Francisco
San Francisco, California, 94143, United States
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