New drug cocktail HRS-6209 shows promise in early breast cancer trial
NCT ID NCT06974929
First seen Jun 27, 2026 · Last updated Jun 27, 2026
Summary
This study tests a new drug called HRS-6209, taken as a capsule, combined with either letrozole or another drug HRS-2189 in 80 women with breast cancer. The goal is to find a safe dose and see if the combination can shrink tumors. It is an early-stage trial, so the main focus is on safety and tolerability.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
- Active substance
- HRS-6209 (a drug taken by mouth) combined with either letrozole or HRS-2189
- What this could lead to
- If successful, this could point toward a new combination treatment option for breast cancer that may help shrink tumors or slow disease progression.
- What could go wrong
- This is an early-phase trial with only 80 participants, so it is primarily testing safety and dosing. The combination may not prove effective against breast cancer, and side effects could limit its use.
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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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Tianjin Medical University Cancer Institute and Hospital
RECRUITINGTianjin, Tianjin Municipality, 300060, China
Contact Phone: •••-•••-•••• Email: •••••@•••••
Contact
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