Blood test timing could unlock secrets of advanced breast cancer

NCT ID NCT07681323

First seen Jul 02, 2026 · Last updated Jul 02, 2026

Summary

This study looks at how the timing of a blood test that detects tumor DNA (ctDNA) affects understanding of prognosis and treatment choices in people with advanced HR+/HER2- breast cancer. Researchers will follow 400 participants to see how ctDNA levels and gene mutations relate to survival and treatment response. The goal is to learn whether earlier or later testing provides better information for guiding care.

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 help doctors better predict outcomes and tailor treatments for advanced breast cancer patients.

What could go wrong

This is an observational study, so it does not test a new treatment. Results may not change practice without further trials.

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 hormone receptor-positive breast cancer

As listed by the trial registrant

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

More trials for these conditions

Other studies related to the condition(s) this trial covers.

Contacts and locations

Study contacts

  • Contact

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

Locations

  • Cancer Institute and Hospital, Chinese Academy of Medical Sciences

    Beijing, 100100, China

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

    Contact