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Pandemic pregnancy: tracking COVID's impact on mothers and babies

NCT ID NCT04388605

What the study statuses mean

This study's is highlighted.

Recruitment status, easiest to join first

Recruiting now
This trial is taking on new participants right now.
Not yet recruiting
Registered, but not yet taking participants.
By invitation only
Not open to general applications. Only people the study team invites can take part.
Paused
Paused for now. It may or may not start again.
Ongoing This study
Running, but no longer taking on new participants.
Completed
The trial has finished. Results may not be published yet.
Stopped early
Stopped early, before it reached the end. That can be for many reasons, including safety.
Cancelled
Cancelled before anyone took part.

Expanded access (not trials)

Expanded access
Not a trial. This treatment can be requested outside a study, case by case, for people who qualify.
Expanded access (paused)
Not a trial. The treatment can normally be requested outside a study, but is unavailable right now.
Expanded access (ended)
Not a trial. The treatment could once be requested outside a study, but no longer can.
Approved
The treatment has been approved, so it is available normally rather than through this programme.

When the status isn't known

Details not published
The full record has not been published yet, so there is little to show here.
Status unknown
This status has not been confirmed recently, so it may be out of date.

First seen Aug 20, 2026 · Last updated Aug 21, 2026 · Updated 1 time

Summary

This nationwide study follows thousands of pregnant women from early pregnancy through the first year of their baby's life to understand how COVID-19 infection affects both mother and child. Researchers will track infections, including those without symptoms, and compare pregnancy outcomes between infected and non-infected women. The goal is to provide crucial data on the safety of pregnancy during the pandemic and inform care for expectant mothers.

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 study could reveal how COVID-19 affects pregnancy and infant development, guiding care for pregnant women during pandemics.
What could go wrong
As an observational study, it cannot prove cause and effect, and results may be influenced by changing pandemic conditions and self-reported data.

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.

Participants

7,965 people

The number who actually took part.

Started

Apr 2020

Expected to finish

Dec 2026

An estimate. End dates often move.

Lead sponsor

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.

Who is studied

The investigators are recruiting 10,000 women from the start of pregnancy (4-10 weeks gestation) and will track COVID-19 exposures using frequent serology testing. The investigators will collect information during and after the pregnancy to try to determine the effects of COVID 19 for mom and baby.

Ages

18 years and older

Sex

Female participants only

Healthy volunteers

Accepted

You do not need to have the condition being studied to take part.

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: * Over age 18 * Participant is 4-10 weeks pregnant (gestation) Exclusion Criteria: \- Male (biologically unable to achieve pregnancy)

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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

  • University of California, San Francisco

    San Francisco, California, 94158, United States

More trials for these conditions

Other studies related to the condition(s) this trial covers.