No needle needed? new trial tests oral COVID and flu vaccines together

NCT ID NCT06355232

First seen Jun 26, 2026 · Last updated Jun 26, 2026 · Updated 1 time

Summary

This early-stage trial is testing whether a COVID-19 vaccine and a flu vaccine can be given together as a liquid under the tongue instead of a shot. About 100 adults will receive both vaccines over four months. The goal is to see if this approach is safe and triggers a strong immune response.

What this could mean

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

Active substance
Recombinant SARS-CoV-2 spike protein with Advax-CpG55.2 adjuvant and inactivated seasonal influenza vaccine with Advax-CpG55.2 adjuvant
What this could lead to
If successful, this could lead to a needle-free, combined COVID-19 and flu vaccine that is easier to administer and may boost immunity at the mucosal surfaces where viruses enter.
What could go wrong
This is a very early Phase 1 trial with only 100 participants, so safety and effectiveness are not yet proven. The oral route may not trigger strong enough immune responses compared to standard shots.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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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

    Email: •••••@•••••

Locations

  • ARASMI

    RECRUITING

    Adelaide, South Australia, 5042, Australia

    Contact Email: •••••@•••••

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