Early malaria vaccine trial halted – what we know

NCT ID NCT05270265

First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This early-stage trial tested a new vaccine against Plasmodium vivax malaria, given with an adjuvant to boost immune response. It involved 25 healthy adults in the UK to check safety and immune reactions. The study was terminated early, so full results are not available.

What this could mean

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

Active substance

Pvs25-IMX313 vaccine with Matrix-M1 adjuvant

What this could lead to

If successful, this could help develop a vaccine against Plasmodium vivax malaria, a major cause of malaria outside Africa.

What could go wrong

This was a very early (Phase 1) trial that was terminated, so results are limited. The vaccine may not produce strong enough immunity or may have safety issues.

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.

Plasmodium vivax malaria prevention target

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

Contacts and locations

Locations

  • CCVTM, University of Oxford, Churchill Hospital

    Oxford, OX3 7LE, United Kingdom