New cocktail of cancer drugs aims to shrink tumors in advanced breast cancer

NCT ID NCT06679036

First seen Jun 26, 2026 · Last updated Jun 27, 2026 · Updated 1 time

Summary

This study tests several experimental drug combinations (HRS-2189, Fluvastatin, HRS-6209, HRS-8080, HRS-1358) in 300 people with advanced breast cancer that cannot be removed by surgery or has spread. The main goals are to check safety, find the best doses, and see if tumors shrink. Participants must have tried prior hormone therapy, with or without CDK4/6 inhibitors.

What this could mean

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

Active substance
HRS-2189, Fluvastatin, HRS-6209, HRS-8080, HRS-1358 (drug combinations)
What this could lead to
If successful, this could point toward new combination treatments for advanced breast cancer that has stopped responding to standard therapies.
What could go wrong
This is an early-phase trial (Phase 1/2) with only 300 participants, so the main goals are safety and dosing—not proof of effectiveness. Many drug combinations fail at this stage.

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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

Locations

  • Harbin Medical University Affiliated Cancer Hospital

    RECRUITING

    Harbin, Heilongjiang, 150081, China

  • Henan Cancer Hospital

    RECRUITING

    Zhengzhou, Henan, 450000, China

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