One shot in pregnancy could shield babies from whooping cough
NCT ID NCT07596199
First seen Jun 25, 2026 · Last updated Jul 09, 2026 · Updated 3 times
Summary
This phase 3 trial will give a single dose of the dTpa vaccine (Boostrix) to 95 healthy Japanese pregnant women between 27 and 37 weeks of pregnancy. The goal is to see if the vaccine triggers strong immunity in the mothers and passes protective antibodies to their babies at birth. Researchers will also monitor safety for both mothers and newborns.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- dTpa vaccine (Boostrix)
- What this could lead to
- If successful, this could show that a single dTpa shot during pregnancy safely boosts antibodies passed to the baby, potentially preventing whooping cough in newborns.
- What could go wrong
- This is a small, single-arm, open-label study with no placebo group, so results may be less reliable. It only includes Japanese women, so findings may not apply to other populations.
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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
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Study contacts
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Contact
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Contact
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Locations
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GSK Investigational Site
RECRUITINGFukushima, 965-8585, Japan
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GSK Investigational Site
RECRUITINGHokkaido, 085-8512, Japan
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GSK Investigational Site
RECRUITINGKanagawa, 236-0004, Japan
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GSK Investigational Site
RECRUITINGKyoto, 604-8845, Japan
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
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GSK Investigational Site
RECRUITINGOsaka, 583-8588, Japan
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Contact
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GSK Investigational Site
RECRUITINGSaitama, 330-0855, Japan
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Contact
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GSK Investigational Site
RECRUITINGSaitama, 336-8522, Japan
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Contact
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GSK Investigational Site
RECRUITINGShizuoka, 424-8636, Japan
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Contact
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GSK Investigational Site
RECRUITINGTokyo, 113-8519, Japan
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Contact
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GSK Investigational Site
RECRUITINGChiba, 279-0001, Japan
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Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••
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GSK Investigational Site
RECRUITINGFukui, 910-0833, Japan
Contact Phone: •••-•••-•••• Email: •••••@•••••
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