Could a vaccine before surgery stop breast cancer?
NCT ID NCT04144023
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This early-phase trial tests a vaccine called H2NVAC in people with a very early form of breast cancer called DCIS that has the HER2 protein. The vaccine is given before surgery to see if it can train the immune system to fight the cancer. The main goals are to check for side effects and find the best dose. About 43 participants will take part at Mayo Clinic.
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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 Florida
RECRUITINGJacksonville, Florida, 32224-9980, United States
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
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Mayo Clinic in Rochester
RECRUITINGRochester, Minnesota, 55905, United States
Contact
Contact Phone: •••-•••-•••• Email: •••••@•••••