New vaccine aims to fight breast cancer by training the immune system

NCT ID NCT04270149

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This early-phase study tests a vaccine made from estrogen receptor peptides, combined with immune boosters, in 8 people with ER-positive breast cancer who have completed standard therapy. The goal is to see if the vaccine is safe and can trigger an immune response against cancer cells. It may help prevent recurrence in patients with higher-risk disease.

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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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Conditions

The condition(s) this trial relates to.

breast cancer breast neoplasm estrogen-receptor positive breast cancer

As listed by the trial registrant

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

Contacts and locations

Locations

  • Duke University Medical Center

    Durham, North Carolina, 27710, United States