Pregnant women get both COVID and flu shots at once in new safety study

NCT ID NCT06503900

First seen Nov 01, 2025 · Last updated Jun 23, 2026 · Updated 36 times

Summary

This study looked at whether it is safe for pregnant women to receive the mRNA COVID-19 vaccine and the flu shot at the same time versus a few weeks apart. 98 pregnant women were randomly assigned to one of the two schedules. Researchers tracked side effects, pregnancy outcomes, and baby health through delivery and 90 days after birth. The goal was to see if giving both vaccines together causes more problems than spacing them out.

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.

Get updates

Get notified about this study

Sign up to get updates when this study changes or when new studies for BIRTH OUTCOMES are added.

Our safety recommendation!

By submitting, you agree to our Terms of use

Contacts and locations

Locations

  • Boston Medical Center

    Boston, Massachusetts, 02118, United States

  • Centers for Disease Control and Prevention

    Atlanta, Georgia, 30341, United States

  • Duke University

    Durham, North Carolina, 27710, United States

  • Elizabeth Schlaudecker

    Cincinnati, Ohio, 45229, United States

  • Emory University

    Atlanta, Georgia, 30322, United States

  • Wake Forest University

    Winston-Salem, North Carolina, 27101, United States

What this could mean

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

Active substance

mRNA COVID-19 vaccine and inactivated influenza vaccine

What this could lead to

If successful, this could show that getting both vaccines at the same time is as safe as getting them separately during pregnancy, simplifying vaccination schedules.

What could go wrong

This is a small, completed trial with only 98 participants, so results may not apply to all pregnant women. It focuses on safety, not long-term effectiveness.

As listed by the trial registrant

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