New mRNA vaccine targets brain infection in global trial

NCT ID NCT06680128

First seen Jun 24, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests two new mRNA vaccines (GBP560) against Japanese encephalitis, a virus that can cause brain swelling. About 402 healthy adults will receive different doses of the vaccine or a comparison vaccine. Researchers will monitor safety and measure immune responses to find the best dose.

What this could mean

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

Active substance

mRNA vaccine (GBP560) against Japanese encephalitis

What this could lead to

If successful, this could lead to a new, more effective mRNA-based vaccine to prevent Japanese encephalitis, a serious brain infection.

What could go wrong

This is an early-phase trial (Phase 1/2) with only 402 participants. The vaccine may not produce a strong enough immune response or could have unexpected side effects.

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.

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Conditions

The condition(s) this trial relates to.

Japanese encephalitis prevention target

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: •••••@•••••

Locations

  • New Zealand Clinical Research

    NOT_YET_RECRUITING

    Christchurch, Central City, 8011, New Zealand

    Contact

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

  • Nucleus Network - Brisbane (Q Pharm)

    RECRUITING

    Brisbane, Australia

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

    Contact

  • Nucleus Network - Melbourne

    RECRUITING

    Melbourne, Australia

    Contact

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