New booster vaccine trial aims to shield japanese teens from three serious diseases

NCT ID NCT07596173

First seen Jun 25, 2026 · Last updated Jul 09, 2026 · Updated 3 times

Summary

This study tests a single booster dose of a combined vaccine against diphtheria, tetanus, and whooping cough (dTpa) in 85 healthy Japanese adolescents aged 11 to 13. Researchers will check if the shot triggers a strong immune response and monitor for side effects one month after vaccination. The goal is to see if this booster can keep teens protected against these infections.

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 (combined reduced-antigen diphtheria, tetanus, and acellular pertussis vaccine)
What this could lead to
If successful, this could confirm that a single booster dose of this dTpa vaccine effectively protects Japanese adolescents against diphtheria, tetanus, and pertussis.
What could go wrong
This is a small, single-arm study with no comparison group, so results may not apply broadly. The vaccine may cause mild side effects like soreness or fever, and long-term protection is not measured here.

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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

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • GSK Investigational Site

    RECRUITING

    Fukuoka, 812-0871, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Hokkaido, 004-0052, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Hokkaido, 006-0814, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Hokkaido, 062-0907, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Kumamoto, 862-0924, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

  • GSK Investigational Site

    RECRUITING

    Mie, 511-0865, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Osaka, 554-0014, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Saitama, 337-0042, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

  • GSK Investigational Site

    RECRUITING

    Saitama, 360-0812, Japan

    Contact Phone: •••-•••-•••• Email: •••••@•••••

    Contact

    Contact Phone: •••-•••-•••• Email: •••••@•••••

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