Measles virus turned against breast cancer tumors
NCT ID NCT04521764
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This early-phase trial is testing a modified measles virus (MV-s-NAP) that is injected directly into tumors in people with metastatic breast cancer. The virus is designed to kill cancer cells and also carry an extra protein to boost the immune response. Researchers are monitoring up to 54 participants to find the safest dose and see if the virus can shrink both injected and non-injected tumors.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
Active substance
modified measles virus (MV-s-NAP)
What this could lead to
If it works, this could point toward a new way to treat metastatic breast cancer by using a virus to attack tumors and boost the immune system.
What could go wrong
This is a very early phase I trial with only 54 people, so it is not yet known if the virus is safe or effective. The virus may cause side effects or fail to shrink tumors.
Disclaimer
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the original study
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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.
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.
As listed by the trial registrant
The condition terms exactly as the trial's registrant entered them.
Contacts and locations
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Study contacts
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Contact
Phone: •••-•••-•••• Email: •••••@•••••
Locations
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Mayo Clinic in Rochester
RECRUITINGRochester, Minnesota, 55905, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
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