New pill AND019 takes on tough breast cancer in first human test

NCT ID NCT05187832

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

Summary

This early-phase trial tests a new oral drug called AND019 in 61 postmenopausal women with advanced or metastatic ER+/HER2- breast cancer who have not responded to standard treatments. The main goals are to check safety, find the right dose, and see early signs of tumor shrinkage. It is a first-in-human study, so results are very preliminary.

What this could mean

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

Active substance

AND019 (oral capsule)

What this could lead to

If it works, this could point toward a new treatment option for people with advanced ER+/HER2- breast cancer who have run out of standard therapies.

What could go wrong

This is a very early (Phase 1) and small (61 people) trial focused on safety, so it is far from proving effectiveness. The drug may cause side effects or fail to shrink tumors.

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.

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

Study contacts

  • Contact

    Phone: •••-•••-•••• Email: •••••@•••••

Locations

  • Sarah Cannon Research Institute

    RECRUITING

    Nashville, Tennessee, 37203, United States