Nasal spray vaccine could make COVID boosters Needle-Free

NCT ID NCT06851611

First seen Jan 04, 2026 · Last updated May 20, 2026 · Updated 20 times

Summary

This early study tested a new nasal COVID-19 vaccine (COV2) in 40 healthy adults to see if it is safe and triggers an immune response. Researchers compared two dose levels and two ways of giving the vaccine (drops vs. spray). The goal is to develop a needle-free booster that may be easier and more acceptable for people.

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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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Contacts and locations

Locations

  • Kuopio University Hospital

    Kuopio, Northern Savonia, 70210, Finland

Conditions

Explore the condition pages connected to this study.