Blood test may reveal if breast cancer treatment is working
NCT ID NCT07662252
First seen Jun 25, 2026 · Last updated Jun 27, 2026 · Updated 1 time
Summary
This study looks at whether tracking tumor DNA in the blood (ctDNA) can help doctors see how well breast cancer treatment is working before surgery. It will include 186 people with stage II-III HER2-positive or triple-negative breast cancer. Researchers will take blood samples at key points during standard treatment to see how quickly the tumor DNA disappears.
What this could mean
Our plain-language read of the trial. This is informational only — not medical advice or a prediction.
What this could lead to
If successful, this could lead to a blood test that helps doctors quickly tell if breast cancer treatment is working, allowing them to adjust therapy sooner.
What could go wrong
This is an observational study, not a treatment trial, so it won't directly improve outcomes. The findings may not apply to all patients or lead to a usable test.
Disclaimer
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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.
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.